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-rw-r--r--src/hw/pci-host/Makefile.objs18
-rw-r--r--src/hw/pci-host/apb.c875
-rw-r--r--src/hw/pci-host/bonito.c857
-rw-r--r--src/hw/pci-host/gpex.c154
-rw-r--r--src/hw/pci-host/grackle.c168
-rw-r--r--src/hw/pci-host/pam.c69
-rw-r--r--src/hw/pci-host/piix.c882
-rw-r--r--src/hw/pci-host/ppce500.c550
-rw-r--r--src/hw/pci-host/prep.c402
-rw-r--r--src/hw/pci-host/q35.c559
-rw-r--r--src/hw/pci-host/uninorth.c523
-rw-r--r--src/hw/pci-host/versatile.c548
12 files changed, 5605 insertions, 0 deletions
diff --git a/src/hw/pci-host/Makefile.objs b/src/hw/pci-host/Makefile.objs
new file mode 100644
index 0000000..45f1f0e
--- /dev/null
+++ b/src/hw/pci-host/Makefile.objs
@@ -0,0 +1,18 @@
+common-obj-y += pam.o
+
+# PPC devices
+common-obj-$(CONFIG_PREP_PCI) += prep.o
+common-obj-$(CONFIG_GRACKLE_PCI) += grackle.o
+# NewWorld PowerMac
+common-obj-$(CONFIG_UNIN_PCI) += uninorth.o
+# PowerPC E500 boards
+common-obj-$(CONFIG_PPCE500_PCI) += ppce500.o
+
+# ARM devices
+common-obj-$(CONFIG_VERSATILE_PCI) += versatile.o
+
+common-obj-$(CONFIG_PCI_APB) += apb.o
+common-obj-$(CONFIG_FULONG) += bonito.o
+common-obj-$(CONFIG_PCI_PIIX) += piix.o
+common-obj-$(CONFIG_PCI_Q35) += q35.o
+common-obj-$(CONFIG_PCI_GENERIC) += gpex.o
diff --git a/src/hw/pci-host/apb.c b/src/hw/pci-host/apb.c
new file mode 100644
index 0000000..599768e
--- /dev/null
+++ b/src/hw/pci-host/apb.c
@@ -0,0 +1,875 @@
+/*
+ * QEMU Ultrasparc APB PCI host
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2012,2013 Artyom Tarasenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* XXX This file and most of its contents are somewhat misnamed. The
+ Ultrasparc PCI host is called the PCI Bus Module (PBM). The APB is
+ the secondary PCI bridge. */
+
+#include "hw/sysbus.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_host.h"
+#include "hw/pci/pci_bridge.h"
+#include "hw/pci/pci_bus.h"
+#include "hw/pci-host/apb.h"
+#include "sysemu/sysemu.h"
+#include "exec/address-spaces.h"
+
+/* debug APB */
+//#define DEBUG_APB
+
+#ifdef DEBUG_APB
+#define APB_DPRINTF(fmt, ...) \
+do { printf("APB: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define APB_DPRINTF(fmt, ...)
+#endif
+
+/* debug IOMMU */
+//#define DEBUG_IOMMU
+
+#ifdef DEBUG_IOMMU
+#define IOMMU_DPRINTF(fmt, ...) \
+do { printf("IOMMU: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define IOMMU_DPRINTF(fmt, ...)
+#endif
+
+/*
+ * Chipset docs:
+ * PBM: "UltraSPARC IIi User's Manual",
+ * http://www.sun.com/processors/manuals/805-0087.pdf
+ *
+ * APB: "Advanced PCI Bridge (APB) User's Manual",
+ * http://www.sun.com/processors/manuals/805-1251.pdf
+ */
+
+#define PBM_PCI_IMR_MASK 0x7fffffff
+#define PBM_PCI_IMR_ENABLED 0x80000000
+
+#define POR (1U << 31)
+#define SOFT_POR (1U << 30)
+#define SOFT_XIR (1U << 29)
+#define BTN_POR (1U << 28)
+#define BTN_XIR (1U << 27)
+#define RESET_MASK 0xf8000000
+#define RESET_WCMASK 0x98000000
+#define RESET_WMASK 0x60000000
+
+#define MAX_IVEC 0x40
+#define NO_IRQ_REQUEST (MAX_IVEC + 1)
+
+#define IOMMU_PAGE_SIZE_8K (1ULL << 13)
+#define IOMMU_PAGE_MASK_8K (~(IOMMU_PAGE_SIZE_8K - 1))
+#define IOMMU_PAGE_SIZE_64K (1ULL << 16)
+#define IOMMU_PAGE_MASK_64K (~(IOMMU_PAGE_SIZE_64K - 1))
+
+#define IOMMU_NREGS 3
+
+#define IOMMU_CTRL 0x0
+#define IOMMU_CTRL_TBW_SIZE (1ULL << 2)
+#define IOMMU_CTRL_MMU_EN (1ULL)
+
+#define IOMMU_CTRL_TSB_SHIFT 16
+
+#define IOMMU_BASE 0x8
+#define IOMMU_FLUSH 0x10
+
+#define IOMMU_TTE_DATA_V (1ULL << 63)
+#define IOMMU_TTE_DATA_SIZE (1ULL << 61)
+#define IOMMU_TTE_DATA_W (1ULL << 1)
+
+#define IOMMU_TTE_PHYS_MASK_8K 0x1ffffffe000ULL
+#define IOMMU_TTE_PHYS_MASK_64K 0x1ffffff8000ULL
+
+#define IOMMU_TSB_8K_OFFSET_MASK_8M 0x00000000007fe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_16M 0x0000000000ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_32M 0x0000000001ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_64M 0x0000000003ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_128M 0x0000000007ffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_256M 0x000000000fffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_512M 0x000000001fffe000ULL
+#define IOMMU_TSB_8K_OFFSET_MASK_1G 0x000000003fffe000ULL
+
+#define IOMMU_TSB_64K_OFFSET_MASK_64M 0x0000000003ff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_128M 0x0000000007ff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_256M 0x000000000fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_512M 0x000000001fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_1G 0x000000003fff0000ULL
+#define IOMMU_TSB_64K_OFFSET_MASK_2G 0x000000007fff0000ULL
+
+typedef struct IOMMUState {
+ AddressSpace iommu_as;
+ MemoryRegion iommu;
+
+ uint64_t regs[IOMMU_NREGS];
+} IOMMUState;
+
+#define TYPE_APB "pbm"
+
+#define APB_DEVICE(obj) \
+ OBJECT_CHECK(APBState, (obj), TYPE_APB)
+
+typedef struct APBState {
+ PCIHostState parent_obj;
+
+ MemoryRegion apb_config;
+ MemoryRegion pci_config;
+ MemoryRegion pci_mmio;
+ MemoryRegion pci_ioport;
+ uint64_t pci_irq_in;
+ IOMMUState iommu;
+ uint32_t pci_control[16];
+ uint32_t pci_irq_map[8];
+ uint32_t pci_err_irq_map[4];
+ uint32_t obio_irq_map[32];
+ qemu_irq *pbm_irqs;
+ qemu_irq *ivec_irqs;
+ unsigned int irq_request;
+ uint32_t reset_control;
+ unsigned int nr_resets;
+} APBState;
+
+static inline void pbm_set_request(APBState *s, unsigned int irq_num)
+{
+ APB_DPRINTF("%s: request irq %d\n", __func__, irq_num);
+
+ s->irq_request = irq_num;
+ qemu_set_irq(s->ivec_irqs[irq_num], 1);
+}
+
+static inline void pbm_check_irqs(APBState *s)
+{
+
+ unsigned int i;
+
+ /* Previous request is not acknowledged, resubmit */
+ if (s->irq_request != NO_IRQ_REQUEST) {
+ pbm_set_request(s, s->irq_request);
+ return;
+ }
+ /* no request pending */
+ if (s->pci_irq_in == 0ULL) {
+ return;
+ }
+ for (i = 0; i < 32; i++) {
+ if (s->pci_irq_in & (1ULL << i)) {
+ if (s->pci_irq_map[i >> 2] & PBM_PCI_IMR_ENABLED) {
+ pbm_set_request(s, i);
+ return;
+ }
+ }
+ }
+ for (i = 32; i < 64; i++) {
+ if (s->pci_irq_in & (1ULL << i)) {
+ if (s->obio_irq_map[i - 32] & PBM_PCI_IMR_ENABLED) {
+ pbm_set_request(s, i);
+ break;
+ }
+ }
+ }
+}
+
+static inline void pbm_clear_request(APBState *s, unsigned int irq_num)
+{
+ APB_DPRINTF("%s: clear request irq %d\n", __func__, irq_num);
+ qemu_set_irq(s->ivec_irqs[irq_num], 0);
+ s->irq_request = NO_IRQ_REQUEST;
+}
+
+static AddressSpace *pbm_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
+{
+ IOMMUState *is = opaque;
+
+ return &is->iommu_as;
+}
+
+/* Called from RCU critical section */
+static IOMMUTLBEntry pbm_translate_iommu(MemoryRegion *iommu, hwaddr addr,
+ bool is_write)
+{
+ IOMMUState *is = container_of(iommu, IOMMUState, iommu);
+ hwaddr baseaddr, offset;
+ uint64_t tte;
+ uint32_t tsbsize;
+ IOMMUTLBEntry ret = {
+ .target_as = &address_space_memory,
+ .iova = 0,
+ .translated_addr = 0,
+ .addr_mask = ~(hwaddr)0,
+ .perm = IOMMU_NONE,
+ };
+
+ if (!(is->regs[IOMMU_CTRL >> 3] & IOMMU_CTRL_MMU_EN)) {
+ /* IOMMU disabled, passthrough using standard 8K page */
+ ret.iova = addr & IOMMU_PAGE_MASK_8K;
+ ret.translated_addr = addr;
+ ret.addr_mask = IOMMU_PAGE_MASK_8K;
+ ret.perm = IOMMU_RW;
+
+ return ret;
+ }
+
+ baseaddr = is->regs[IOMMU_BASE >> 3];
+ tsbsize = (is->regs[IOMMU_CTRL >> 3] >> IOMMU_CTRL_TSB_SHIFT) & 0x7;
+
+ if (is->regs[IOMMU_CTRL >> 3] & IOMMU_CTRL_TBW_SIZE) {
+ /* 64K */
+ switch (tsbsize) {
+ case 0:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_64M) >> 13;
+ break;
+ case 1:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_128M) >> 13;
+ break;
+ case 2:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_256M) >> 13;
+ break;
+ case 3:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_512M) >> 13;
+ break;
+ case 4:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_1G) >> 13;
+ break;
+ case 5:
+ offset = (addr & IOMMU_TSB_64K_OFFSET_MASK_2G) >> 13;
+ break;
+ default:
+ /* Not implemented, error */
+ return ret;
+ }
+ } else {
+ /* 8K */
+ switch (tsbsize) {
+ case 0:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_8M) >> 10;
+ break;
+ case 1:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_16M) >> 10;
+ break;
+ case 2:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_32M) >> 10;
+ break;
+ case 3:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_64M) >> 10;
+ break;
+ case 4:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_128M) >> 10;
+ break;
+ case 5:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_256M) >> 10;
+ break;
+ case 6:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_512M) >> 10;
+ break;
+ case 7:
+ offset = (addr & IOMMU_TSB_8K_OFFSET_MASK_1G) >> 10;
+ break;
+ }
+ }
+
+ tte = address_space_ldq_be(&address_space_memory, baseaddr + offset,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+
+ if (!(tte & IOMMU_TTE_DATA_V)) {
+ /* Invalid mapping */
+ return ret;
+ }
+
+ if (tte & IOMMU_TTE_DATA_W) {
+ /* Writeable */
+ ret.perm = IOMMU_RW;
+ } else {
+ ret.perm = IOMMU_RO;
+ }
+
+ /* Extract phys */
+ if (tte & IOMMU_TTE_DATA_SIZE) {
+ /* 64K */
+ ret.iova = addr & IOMMU_PAGE_MASK_64K;
+ ret.translated_addr = tte & IOMMU_TTE_PHYS_MASK_64K;
+ ret.addr_mask = (IOMMU_PAGE_SIZE_64K - 1);
+ } else {
+ /* 8K */
+ ret.iova = addr & IOMMU_PAGE_MASK_8K;
+ ret.translated_addr = tte & IOMMU_TTE_PHYS_MASK_8K;
+ ret.addr_mask = (IOMMU_PAGE_SIZE_8K - 1);
+ }
+
+ return ret;
+}
+
+static MemoryRegionIOMMUOps pbm_iommu_ops = {
+ .translate = pbm_translate_iommu,
+};
+
+static void iommu_config_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ IOMMUState *is = opaque;
+
+ IOMMU_DPRINTF("IOMMU config write: 0x%" HWADDR_PRIx " val: %" PRIx64
+ " size: %d\n", addr, val, size);
+
+ switch (addr) {
+ case IOMMU_CTRL:
+ if (size == 4) {
+ is->regs[IOMMU_CTRL >> 3] &= 0xffffffffULL;
+ is->regs[IOMMU_CTRL >> 3] |= val << 32;
+ } else {
+ is->regs[IOMMU_CTRL >> 3] = val;
+ }
+ break;
+ case IOMMU_CTRL + 0x4:
+ is->regs[IOMMU_CTRL >> 3] &= 0xffffffff00000000ULL;
+ is->regs[IOMMU_CTRL >> 3] |= val & 0xffffffffULL;
+ break;
+ case IOMMU_BASE:
+ if (size == 4) {
+ is->regs[IOMMU_BASE >> 3] &= 0xffffffffULL;
+ is->regs[IOMMU_BASE >> 3] |= val << 32;
+ } else {
+ is->regs[IOMMU_BASE >> 3] = val;
+ }
+ break;
+ case IOMMU_BASE + 0x4:
+ is->regs[IOMMU_BASE >> 3] &= 0xffffffff00000000ULL;
+ is->regs[IOMMU_BASE >> 3] |= val & 0xffffffffULL;
+ break;
+ case IOMMU_FLUSH:
+ case IOMMU_FLUSH + 0x4:
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "apb iommu: Unimplemented register write "
+ "reg 0x%" HWADDR_PRIx " size 0x%x value 0x%" PRIx64 "\n",
+ addr, size, val);
+ break;
+ }
+}
+
+static uint64_t iommu_config_read(void *opaque, hwaddr addr, unsigned size)
+{
+ IOMMUState *is = opaque;
+ uint64_t val;
+
+ switch (addr) {
+ case IOMMU_CTRL:
+ if (size == 4) {
+ val = is->regs[IOMMU_CTRL >> 3] >> 32;
+ } else {
+ val = is->regs[IOMMU_CTRL >> 3];
+ }
+ break;
+ case IOMMU_CTRL + 0x4:
+ val = is->regs[IOMMU_CTRL >> 3] & 0xffffffffULL;
+ break;
+ case IOMMU_BASE:
+ if (size == 4) {
+ val = is->regs[IOMMU_BASE >> 3] >> 32;
+ } else {
+ val = is->regs[IOMMU_BASE >> 3];
+ }
+ break;
+ case IOMMU_BASE + 0x4:
+ val = is->regs[IOMMU_BASE >> 3] & 0xffffffffULL;
+ break;
+ case IOMMU_FLUSH:
+ case IOMMU_FLUSH + 0x4:
+ val = 0;
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "apb iommu: Unimplemented register read "
+ "reg 0x%" HWADDR_PRIx " size 0x%x\n",
+ addr, size);
+ val = 0;
+ break;
+ }
+
+ IOMMU_DPRINTF("IOMMU config read: 0x%" HWADDR_PRIx " val: %" PRIx64
+ " size: %d\n", addr, val, size);
+
+ return val;
+}
+
+static void apb_config_writel (void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ APBState *s = opaque;
+ IOMMUState *is = &s->iommu;
+
+ APB_DPRINTF("%s: addr " TARGET_FMT_plx " val %" PRIx64 "\n", __func__, addr, val);
+
+ switch (addr & 0xffff) {
+ case 0x30 ... 0x4f: /* DMA error registers */
+ /* XXX: not implemented yet */
+ break;
+ case 0x200 ... 0x217: /* IOMMU */
+ iommu_config_write(is, (addr & 0x1f), val, size);
+ break;
+ case 0xc00 ... 0xc3f: /* PCI interrupt control */
+ if (addr & 4) {
+ unsigned int ino = (addr & 0x3f) >> 3;
+ s->pci_irq_map[ino] &= PBM_PCI_IMR_MASK;
+ s->pci_irq_map[ino] |= val & ~PBM_PCI_IMR_MASK;
+ if ((s->irq_request == ino) && !(val & ~PBM_PCI_IMR_MASK)) {
+ pbm_clear_request(s, ino);
+ }
+ pbm_check_irqs(s);
+ }
+ break;
+ case 0x1000 ... 0x107f: /* OBIO interrupt control */
+ if (addr & 4) {
+ unsigned int ino = ((addr & 0xff) >> 3);
+ s->obio_irq_map[ino] &= PBM_PCI_IMR_MASK;
+ s->obio_irq_map[ino] |= val & ~PBM_PCI_IMR_MASK;
+ if ((s->irq_request == (ino | 0x20))
+ && !(val & ~PBM_PCI_IMR_MASK)) {
+ pbm_clear_request(s, ino | 0x20);
+ }
+ pbm_check_irqs(s);
+ }
+ break;
+ case 0x1400 ... 0x14ff: /* PCI interrupt clear */
+ if (addr & 4) {
+ unsigned int ino = (addr & 0xff) >> 5;
+ if ((s->irq_request / 4) == ino) {
+ pbm_clear_request(s, s->irq_request);
+ pbm_check_irqs(s);
+ }
+ }
+ break;
+ case 0x1800 ... 0x1860: /* OBIO interrupt clear */
+ if (addr & 4) {
+ unsigned int ino = ((addr & 0xff) >> 3) | 0x20;
+ if (s->irq_request == ino) {
+ pbm_clear_request(s, ino);
+ pbm_check_irqs(s);
+ }
+ }
+ break;
+ case 0x2000 ... 0x202f: /* PCI control */
+ s->pci_control[(addr & 0x3f) >> 2] = val;
+ break;
+ case 0xf020 ... 0xf027: /* Reset control */
+ if (addr & 4) {
+ val &= RESET_MASK;
+ s->reset_control &= ~(val & RESET_WCMASK);
+ s->reset_control |= val & RESET_WMASK;
+ if (val & SOFT_POR) {
+ s->nr_resets = 0;
+ qemu_system_reset_request();
+ } else if (val & SOFT_XIR) {
+ qemu_system_reset_request();
+ }
+ }
+ break;
+ case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */
+ case 0xa400 ... 0xa67f: /* IOMMU diagnostics */
+ case 0xa800 ... 0xa80f: /* Interrupt diagnostics */
+ case 0xf000 ... 0xf01f: /* FFB config, memory control */
+ /* we don't care */
+ default:
+ break;
+ }
+}
+
+static uint64_t apb_config_readl (void *opaque,
+ hwaddr addr, unsigned size)
+{
+ APBState *s = opaque;
+ IOMMUState *is = &s->iommu;
+ uint32_t val;
+
+ switch (addr & 0xffff) {
+ case 0x30 ... 0x4f: /* DMA error registers */
+ val = 0;
+ /* XXX: not implemented yet */
+ break;
+ case 0x200 ... 0x217: /* IOMMU */
+ val = iommu_config_read(is, (addr & 0x1f), size);
+ break;
+ case 0xc00 ... 0xc3f: /* PCI interrupt control */
+ if (addr & 4) {
+ val = s->pci_irq_map[(addr & 0x3f) >> 3];
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x1000 ... 0x107f: /* OBIO interrupt control */
+ if (addr & 4) {
+ val = s->obio_irq_map[(addr & 0xff) >> 3];
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x1080 ... 0x108f: /* PCI bus error */
+ if (addr & 4) {
+ val = s->pci_err_irq_map[(addr & 0xf) >> 3];
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x2000 ... 0x202f: /* PCI control */
+ val = s->pci_control[(addr & 0x3f) >> 2];
+ break;
+ case 0xf020 ... 0xf027: /* Reset control */
+ if (addr & 4) {
+ val = s->reset_control;
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */
+ case 0xa400 ... 0xa67f: /* IOMMU diagnostics */
+ case 0xa800 ... 0xa80f: /* Interrupt diagnostics */
+ case 0xf000 ... 0xf01f: /* FFB config, memory control */
+ /* we don't care */
+ default:
+ val = 0;
+ break;
+ }
+ APB_DPRINTF("%s: addr " TARGET_FMT_plx " -> %x\n", __func__, addr, val);
+
+ return val;
+}
+
+static const MemoryRegionOps apb_config_ops = {
+ .read = apb_config_readl,
+ .write = apb_config_writel,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void apb_pci_config_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ APBState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+
+ val = qemu_bswap_len(val, size);
+ APB_DPRINTF("%s: addr " TARGET_FMT_plx " val %" PRIx64 "\n", __func__, addr, val);
+ pci_data_write(phb->bus, addr, val, size);
+}
+
+static uint64_t apb_pci_config_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ uint32_t ret;
+ APBState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+
+ ret = pci_data_read(phb->bus, addr, size);
+ ret = qemu_bswap_len(ret, size);
+ APB_DPRINTF("%s: addr " TARGET_FMT_plx " -> %x\n", __func__, addr, ret);
+ return ret;
+}
+
+/* The APB host has an IRQ line for each IRQ line of each slot. */
+static int pci_apb_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+ return ((pci_dev->devfn & 0x18) >> 1) + irq_num;
+}
+
+static int pci_pbm_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+ int bus_offset;
+ if (pci_dev->devfn & 1)
+ bus_offset = 16;
+ else
+ bus_offset = 0;
+ return (bus_offset + (PCI_SLOT(pci_dev->devfn) << 2) + irq_num) & 0x1f;
+}
+
+static void pci_apb_set_irq(void *opaque, int irq_num, int level)
+{
+ APBState *s = opaque;
+
+ APB_DPRINTF("%s: set irq_in %d level %d\n", __func__, irq_num, level);
+ /* PCI IRQ map onto the first 32 INO. */
+ if (irq_num < 32) {
+ if (level) {
+ s->pci_irq_in |= 1ULL << irq_num;
+ if (s->pci_irq_map[irq_num >> 2] & PBM_PCI_IMR_ENABLED) {
+ pbm_set_request(s, irq_num);
+ }
+ } else {
+ s->pci_irq_in &= ~(1ULL << irq_num);
+ }
+ } else {
+ /* OBIO IRQ map onto the next 32 INO. */
+ if (level) {
+ APB_DPRINTF("%s: set irq %d level %d\n", __func__, irq_num, level);
+ s->pci_irq_in |= 1ULL << irq_num;
+ if ((s->irq_request == NO_IRQ_REQUEST)
+ && (s->obio_irq_map[irq_num - 32] & PBM_PCI_IMR_ENABLED)) {
+ pbm_set_request(s, irq_num);
+ }
+ } else {
+ s->pci_irq_in &= ~(1ULL << irq_num);
+ }
+ }
+}
+
+static int apb_pci_bridge_initfn(PCIDevice *dev)
+{
+ int rc;
+
+ rc = pci_bridge_initfn(dev, TYPE_PCI_BUS);
+ if (rc < 0) {
+ return rc;
+ }
+
+ /*
+ * command register:
+ * According to PCI bridge spec, after reset
+ * bus master bit is off
+ * memory space enable bit is off
+ * According to manual (805-1251.pdf).
+ * the reset value should be zero unless the boot pin is tied high
+ * (which is true) and thus it should be PCI_COMMAND_MEMORY.
+ */
+ pci_set_word(dev->config + PCI_COMMAND,
+ PCI_COMMAND_MEMORY);
+ pci_set_word(dev->config + PCI_STATUS,
+ PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ |
+ PCI_STATUS_DEVSEL_MEDIUM);
+ return 0;
+}
+
+PCIBus *pci_apb_init(hwaddr special_base,
+ hwaddr mem_base,
+ qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3,
+ qemu_irq **pbm_irqs)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+ PCIHostState *phb;
+ APBState *d;
+ IOMMUState *is;
+ PCIDevice *pci_dev;
+ PCIBridge *br;
+
+ /* Ultrasparc PBM main bus */
+ dev = qdev_create(NULL, TYPE_APB);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ /* apb_config */
+ sysbus_mmio_map(s, 0, special_base);
+ /* PCI configuration space */
+ sysbus_mmio_map(s, 1, special_base + 0x1000000ULL);
+ /* pci_ioport */
+ sysbus_mmio_map(s, 2, special_base + 0x2000000ULL);
+ d = APB_DEVICE(dev);
+
+ memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
+ memory_region_add_subregion(get_system_memory(), mem_base, &d->pci_mmio);
+
+ phb = PCI_HOST_BRIDGE(dev);
+ phb->bus = pci_register_bus(DEVICE(phb), "pci",
+ pci_apb_set_irq, pci_pbm_map_irq, d,
+ &d->pci_mmio,
+ get_system_io(),
+ 0, 32, TYPE_PCI_BUS);
+
+ *pbm_irqs = d->pbm_irqs;
+ d->ivec_irqs = ivec_irqs;
+
+ pci_create_simple(phb->bus, 0, "pbm-pci");
+
+ /* APB IOMMU */
+ is = &d->iommu;
+ memset(is, 0, sizeof(IOMMUState));
+
+ memory_region_init_iommu(&is->iommu, OBJECT(dev), &pbm_iommu_ops,
+ "iommu-apb", UINT64_MAX);
+ address_space_init(&is->iommu_as, &is->iommu, "pbm-as");
+ pci_setup_iommu(phb->bus, pbm_pci_dma_iommu, is);
+
+ /* APB secondary busses */
+ pci_dev = pci_create_multifunction(phb->bus, PCI_DEVFN(1, 0), true,
+ "pbm-bridge");
+ br = PCI_BRIDGE(pci_dev);
+ pci_bridge_map_irq(br, "Advanced PCI Bus secondary bridge 1",
+ pci_apb_map_irq);
+ qdev_init_nofail(&pci_dev->qdev);
+ *bus2 = pci_bridge_get_sec_bus(br);
+
+ pci_dev = pci_create_multifunction(phb->bus, PCI_DEVFN(1, 1), true,
+ "pbm-bridge");
+ br = PCI_BRIDGE(pci_dev);
+ pci_bridge_map_irq(br, "Advanced PCI Bus secondary bridge 2",
+ pci_apb_map_irq);
+ qdev_init_nofail(&pci_dev->qdev);
+ *bus3 = pci_bridge_get_sec_bus(br);
+
+ return phb->bus;
+}
+
+static void pci_pbm_reset(DeviceState *d)
+{
+ unsigned int i;
+ APBState *s = APB_DEVICE(d);
+
+ for (i = 0; i < 8; i++) {
+ s->pci_irq_map[i] &= PBM_PCI_IMR_MASK;
+ }
+ for (i = 0; i < 32; i++) {
+ s->obio_irq_map[i] &= PBM_PCI_IMR_MASK;
+ }
+
+ s->irq_request = NO_IRQ_REQUEST;
+ s->pci_irq_in = 0ULL;
+
+ if (s->nr_resets++ == 0) {
+ /* Power on reset */
+ s->reset_control = POR;
+ }
+}
+
+static const MemoryRegionOps pci_config_ops = {
+ .read = apb_pci_config_read,
+ .write = apb_pci_config_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int pci_pbm_init_device(SysBusDevice *dev)
+{
+ APBState *s;
+ unsigned int i;
+
+ s = APB_DEVICE(dev);
+ for (i = 0; i < 8; i++) {
+ s->pci_irq_map[i] = (0x1f << 6) | (i << 2);
+ }
+ for (i = 0; i < 2; i++) {
+ s->pci_err_irq_map[i] = (0x1f << 6) | 0x30;
+ }
+ for (i = 0; i < 32; i++) {
+ s->obio_irq_map[i] = ((0x1f << 6) | 0x20) + i;
+ }
+ s->pbm_irqs = qemu_allocate_irqs(pci_apb_set_irq, s, MAX_IVEC);
+ s->irq_request = NO_IRQ_REQUEST;
+ s->pci_irq_in = 0ULL;
+
+ /* apb_config */
+ memory_region_init_io(&s->apb_config, OBJECT(s), &apb_config_ops, s,
+ "apb-config", 0x10000);
+ /* at region 0 */
+ sysbus_init_mmio(dev, &s->apb_config);
+
+ memory_region_init_io(&s->pci_config, OBJECT(s), &pci_config_ops, s,
+ "apb-pci-config", 0x1000000);
+ /* at region 1 */
+ sysbus_init_mmio(dev, &s->pci_config);
+
+ /* pci_ioport */
+ memory_region_init_alias(&s->pci_ioport, OBJECT(s), "apb-pci-ioport",
+ get_system_io(), 0, 0x10000);
+ /* at region 2 */
+ sysbus_init_mmio(dev, &s->pci_ioport);
+
+ return 0;
+}
+
+static void pbm_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ pci_set_word(d->config + PCI_COMMAND,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ pci_set_word(d->config + PCI_STATUS,
+ PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ |
+ PCI_STATUS_DEVSEL_MEDIUM);
+}
+
+static void pbm_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = pbm_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_SUN;
+ k->device_id = PCI_DEVICE_ID_SUN_SABRE;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo pbm_pci_host_info = {
+ .name = "pbm-pci",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = pbm_pci_host_class_init,
+};
+
+static void pbm_host_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = pci_pbm_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->reset = pci_pbm_reset;
+}
+
+static const TypeInfo pbm_host_info = {
+ .name = TYPE_APB,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(APBState),
+ .class_init = pbm_host_class_init,
+};
+
+static void pbm_pci_bridge_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->init = apb_pci_bridge_initfn;
+ k->exit = pci_bridge_exitfn;
+ k->vendor_id = PCI_VENDOR_ID_SUN;
+ k->device_id = PCI_DEVICE_ID_SUN_SIMBA;
+ k->revision = 0x11;
+ k->config_write = pci_bridge_write_config;
+ k->is_bridge = 1;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->reset = pci_bridge_reset;
+ dc->vmsd = &vmstate_pci_device;
+}
+
+static const TypeInfo pbm_pci_bridge_info = {
+ .name = "pbm-bridge",
+ .parent = TYPE_PCI_BRIDGE,
+ .class_init = pbm_pci_bridge_class_init,
+};
+
+static void pbm_register_types(void)
+{
+ type_register_static(&pbm_host_info);
+ type_register_static(&pbm_pci_host_info);
+ type_register_static(&pbm_pci_bridge_info);
+}
+
+type_init(pbm_register_types)
diff --git a/src/hw/pci-host/bonito.c b/src/hw/pci-host/bonito.c
new file mode 100644
index 0000000..4139a2c
--- /dev/null
+++ b/src/hw/pci-host/bonito.c
@@ -0,0 +1,857 @@
+/*
+ * bonito north bridge support
+ *
+ * Copyright (c) 2008 yajin (yajin@vm-kernel.org)
+ * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com)
+ *
+ * This code is licensed under the GNU GPL v2.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+/*
+ * fulong 2e mini pc has a bonito north bridge.
+ */
+
+/* what is the meaning of devfn in qemu and IDSEL in bonito northbridge?
+ *
+ * devfn pci_slot<<3 + funno
+ * one pci bus can have 32 devices and each device can have 8 functions.
+ *
+ * In bonito north bridge, pci slot = IDSEL bit - 12.
+ * For example, PCI_IDSEL_VIA686B = 17,
+ * pci slot = 17-12=5
+ *
+ * so
+ * VT686B_FUN0's devfn = (5<<3)+0
+ * VT686B_FUN1's devfn = (5<<3)+1
+ *
+ * qemu also uses pci address for north bridge to access pci config register.
+ * bus_no [23:16]
+ * dev_no [15:11]
+ * fun_no [10:8]
+ * reg_no [7:2]
+ *
+ * so function bonito_sbridge_pciaddr for the translation from
+ * north bridge address to pci address.
+ */
+
+#include <assert.h>
+
+#include "hw/hw.h"
+#include "hw/pci/pci.h"
+#include "hw/i386/pc.h"
+#include "hw/mips/mips.h"
+#include "hw/pci/pci_host.h"
+#include "sysemu/sysemu.h"
+#include "exec/address-spaces.h"
+
+//#define DEBUG_BONITO
+
+#ifdef DEBUG_BONITO
+#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...)
+#endif
+
+/* from linux soure code. include/asm-mips/mips-boards/bonito64.h*/
+#define BONITO_BOOT_BASE 0x1fc00000
+#define BONITO_BOOT_SIZE 0x00100000
+#define BONITO_BOOT_TOP (BONITO_BOOT_BASE+BONITO_BOOT_SIZE-1)
+#define BONITO_FLASH_BASE 0x1c000000
+#define BONITO_FLASH_SIZE 0x03000000
+#define BONITO_FLASH_TOP (BONITO_FLASH_BASE+BONITO_FLASH_SIZE-1)
+#define BONITO_SOCKET_BASE 0x1f800000
+#define BONITO_SOCKET_SIZE 0x00400000
+#define BONITO_SOCKET_TOP (BONITO_SOCKET_BASE+BONITO_SOCKET_SIZE-1)
+#define BONITO_REG_BASE 0x1fe00000
+#define BONITO_REG_SIZE 0x00040000
+#define BONITO_REG_TOP (BONITO_REG_BASE+BONITO_REG_SIZE-1)
+#define BONITO_DEV_BASE 0x1ff00000
+#define BONITO_DEV_SIZE 0x00100000
+#define BONITO_DEV_TOP (BONITO_DEV_BASE+BONITO_DEV_SIZE-1)
+#define BONITO_PCILO_BASE 0x10000000
+#define BONITO_PCILO_BASE_VA 0xb0000000
+#define BONITO_PCILO_SIZE 0x0c000000
+#define BONITO_PCILO_TOP (BONITO_PCILO_BASE+BONITO_PCILO_SIZE-1)
+#define BONITO_PCILO0_BASE 0x10000000
+#define BONITO_PCILO1_BASE 0x14000000
+#define BONITO_PCILO2_BASE 0x18000000
+#define BONITO_PCIHI_BASE 0x20000000
+#define BONITO_PCIHI_SIZE 0x20000000
+#define BONITO_PCIHI_TOP (BONITO_PCIHI_BASE+BONITO_PCIHI_SIZE-1)
+#define BONITO_PCIIO_BASE 0x1fd00000
+#define BONITO_PCIIO_BASE_VA 0xbfd00000
+#define BONITO_PCIIO_SIZE 0x00010000
+#define BONITO_PCIIO_TOP (BONITO_PCIIO_BASE+BONITO_PCIIO_SIZE-1)
+#define BONITO_PCICFG_BASE 0x1fe80000
+#define BONITO_PCICFG_SIZE 0x00080000
+#define BONITO_PCICFG_TOP (BONITO_PCICFG_BASE+BONITO_PCICFG_SIZE-1)
+
+
+#define BONITO_PCICONFIGBASE 0x00
+#define BONITO_REGBASE 0x100
+
+#define BONITO_PCICONFIG_BASE (BONITO_PCICONFIGBASE+BONITO_REG_BASE)
+#define BONITO_PCICONFIG_SIZE (0x100)
+
+#define BONITO_INTERNAL_REG_BASE (BONITO_REGBASE+BONITO_REG_BASE)
+#define BONITO_INTERNAL_REG_SIZE (0x70)
+
+#define BONITO_SPCICONFIG_BASE (BONITO_PCICFG_BASE)
+#define BONITO_SPCICONFIG_SIZE (BONITO_PCICFG_SIZE)
+
+
+
+/* 1. Bonito h/w Configuration */
+/* Power on register */
+
+#define BONITO_BONPONCFG (0x00 >> 2) /* 0x100 */
+#define BONITO_BONGENCFG_OFFSET 0x4
+#define BONITO_BONGENCFG (BONITO_BONGENCFG_OFFSET>>2) /*0x104 */
+
+/* 2. IO & IDE configuration */
+#define BONITO_IODEVCFG (0x08 >> 2) /* 0x108 */
+
+/* 3. IO & IDE configuration */
+#define BONITO_SDCFG (0x0c >> 2) /* 0x10c */
+
+/* 4. PCI address map control */
+#define BONITO_PCIMAP (0x10 >> 2) /* 0x110 */
+#define BONITO_PCIMEMBASECFG (0x14 >> 2) /* 0x114 */
+#define BONITO_PCIMAP_CFG (0x18 >> 2) /* 0x118 */
+
+/* 5. ICU & GPIO regs */
+/* GPIO Regs - r/w */
+#define BONITO_GPIODATA_OFFSET 0x1c
+#define BONITO_GPIODATA (BONITO_GPIODATA_OFFSET >> 2) /* 0x11c */
+#define BONITO_GPIOIE (0x20 >> 2) /* 0x120 */
+
+/* ICU Configuration Regs - r/w */
+#define BONITO_INTEDGE (0x24 >> 2) /* 0x124 */
+#define BONITO_INTSTEER (0x28 >> 2) /* 0x128 */
+#define BONITO_INTPOL (0x2c >> 2) /* 0x12c */
+
+/* ICU Enable Regs - IntEn & IntISR are r/o. */
+#define BONITO_INTENSET (0x30 >> 2) /* 0x130 */
+#define BONITO_INTENCLR (0x34 >> 2) /* 0x134 */
+#define BONITO_INTEN (0x38 >> 2) /* 0x138 */
+#define BONITO_INTISR (0x3c >> 2) /* 0x13c */
+
+/* PCI mail boxes */
+#define BONITO_PCIMAIL0_OFFSET 0x40
+#define BONITO_PCIMAIL1_OFFSET 0x44
+#define BONITO_PCIMAIL2_OFFSET 0x48
+#define BONITO_PCIMAIL3_OFFSET 0x4c
+#define BONITO_PCIMAIL0 (0x40 >> 2) /* 0x140 */
+#define BONITO_PCIMAIL1 (0x44 >> 2) /* 0x144 */
+#define BONITO_PCIMAIL2 (0x48 >> 2) /* 0x148 */
+#define BONITO_PCIMAIL3 (0x4c >> 2) /* 0x14c */
+
+/* 6. PCI cache */
+#define BONITO_PCICACHECTRL (0x50 >> 2) /* 0x150 */
+#define BONITO_PCICACHETAG (0x54 >> 2) /* 0x154 */
+#define BONITO_PCIBADADDR (0x58 >> 2) /* 0x158 */
+#define BONITO_PCIMSTAT (0x5c >> 2) /* 0x15c */
+
+/* 7. other*/
+#define BONITO_TIMECFG (0x60 >> 2) /* 0x160 */
+#define BONITO_CPUCFG (0x64 >> 2) /* 0x164 */
+#define BONITO_DQCFG (0x68 >> 2) /* 0x168 */
+#define BONITO_MEMSIZE (0x6C >> 2) /* 0x16c */
+
+#define BONITO_REGS (0x70 >> 2)
+
+/* PCI config for south bridge. type 0 */
+#define BONITO_PCICONF_IDSEL_MASK 0xfffff800 /* [31:11] */
+#define BONITO_PCICONF_IDSEL_OFFSET 11
+#define BONITO_PCICONF_FUN_MASK 0x700 /* [10:8] */
+#define BONITO_PCICONF_FUN_OFFSET 8
+#define BONITO_PCICONF_REG_MASK 0xFC
+#define BONITO_PCICONF_REG_OFFSET 0
+
+
+/* idsel BIT = pci slot number +12 */
+#define PCI_SLOT_BASE 12
+#define PCI_IDSEL_VIA686B_BIT (17)
+#define PCI_IDSEL_VIA686B (1<<PCI_IDSEL_VIA686B_BIT)
+
+#define PCI_ADDR(busno,devno,funno,regno) \
+ ((((busno)<<16)&0xff0000) + (((devno)<<11)&0xf800) + (((funno)<<8)&0x700) + (regno))
+
+#define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost"
+
+typedef struct BonitoState BonitoState;
+
+typedef struct PCIBonitoState
+{
+ PCIDevice dev;
+
+ BonitoState *pcihost;
+ uint32_t regs[BONITO_REGS];
+
+ struct bonldma {
+ uint32_t ldmactrl;
+ uint32_t ldmastat;
+ uint32_t ldmaaddr;
+ uint32_t ldmago;
+ } bonldma;
+
+ /* Based at 1fe00300, bonito Copier */
+ struct boncop {
+ uint32_t copctrl;
+ uint32_t copstat;
+ uint32_t coppaddr;
+ uint32_t copgo;
+ } boncop;
+
+ /* Bonito registers */
+ MemoryRegion iomem;
+ MemoryRegion iomem_ldma;
+ MemoryRegion iomem_cop;
+ MemoryRegion bonito_pciio;
+ MemoryRegion bonito_localio;
+
+} PCIBonitoState;
+
+#define BONITO_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(BonitoState, (obj), TYPE_BONITO_PCI_HOST_BRIDGE)
+
+struct BonitoState {
+ PCIHostState parent_obj;
+
+ qemu_irq *pic;
+
+ PCIBonitoState *pci_dev;
+};
+
+static void bonito_writel(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIBonitoState *s = opaque;
+ uint32_t saddr;
+ int reset = 0;
+
+ saddr = addr >> 2;
+
+ DPRINTF("bonito_writel "TARGET_FMT_plx" val %x saddr %x\n", addr, val, saddr);
+ switch (saddr) {
+ case BONITO_BONPONCFG:
+ case BONITO_IODEVCFG:
+ case BONITO_SDCFG:
+ case BONITO_PCIMAP:
+ case BONITO_PCIMEMBASECFG:
+ case BONITO_PCIMAP_CFG:
+ case BONITO_GPIODATA:
+ case BONITO_GPIOIE:
+ case BONITO_INTEDGE:
+ case BONITO_INTSTEER:
+ case BONITO_INTPOL:
+ case BONITO_PCIMAIL0:
+ case BONITO_PCIMAIL1:
+ case BONITO_PCIMAIL2:
+ case BONITO_PCIMAIL3:
+ case BONITO_PCICACHECTRL:
+ case BONITO_PCICACHETAG:
+ case BONITO_PCIBADADDR:
+ case BONITO_PCIMSTAT:
+ case BONITO_TIMECFG:
+ case BONITO_CPUCFG:
+ case BONITO_DQCFG:
+ case BONITO_MEMSIZE:
+ s->regs[saddr] = val;
+ break;
+ case BONITO_BONGENCFG:
+ if (!(s->regs[saddr] & 0x04) && (val & 0x04)) {
+ reset = 1; /* bit 2 jump from 0 to 1 cause reset */
+ }
+ s->regs[saddr] = val;
+ if (reset) {
+ qemu_system_reset_request();
+ }
+ break;
+ case BONITO_INTENSET:
+ s->regs[BONITO_INTENSET] = val;
+ s->regs[BONITO_INTEN] |= val;
+ break;
+ case BONITO_INTENCLR:
+ s->regs[BONITO_INTENCLR] = val;
+ s->regs[BONITO_INTEN] &= ~val;
+ break;
+ case BONITO_INTEN:
+ case BONITO_INTISR:
+ DPRINTF("write to readonly bonito register %x\n", saddr);
+ break;
+ default:
+ DPRINTF("write to unknown bonito register %x\n", saddr);
+ break;
+ }
+}
+
+static uint64_t bonito_readl(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ PCIBonitoState *s = opaque;
+ uint32_t saddr;
+
+ saddr = addr >> 2;
+
+ DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr);
+ switch (saddr) {
+ case BONITO_INTISR:
+ return s->regs[saddr];
+ default:
+ return s->regs[saddr];
+ }
+}
+
+static const MemoryRegionOps bonito_ops = {
+ .read = bonito_readl,
+ .write = bonito_writel,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static void bonito_pciconf_writel(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+
+ DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
+ d->config_write(d, addr, val, 4);
+}
+
+static uint64_t bonito_pciconf_readl(void *opaque, hwaddr addr,
+ unsigned size)
+{
+
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+
+ DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr);
+ return d->config_read(d, addr, 4);
+}
+
+/* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */
+
+static const MemoryRegionOps bonito_pciconf_ops = {
+ .read = bonito_pciconf_readl,
+ .write = bonito_pciconf_writel,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static uint64_t bonito_ldma_readl(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ uint32_t val;
+ PCIBonitoState *s = opaque;
+
+ if (addr >= sizeof(s->bonldma)) {
+ return 0;
+ }
+
+ val = ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)];
+
+ return val;
+}
+
+static void bonito_ldma_writel(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIBonitoState *s = opaque;
+
+ if (addr >= sizeof(s->bonldma)) {
+ return;
+ }
+
+ ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)] = val & 0xffffffff;
+}
+
+static const MemoryRegionOps bonito_ldma_ops = {
+ .read = bonito_ldma_readl,
+ .write = bonito_ldma_writel,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static uint64_t bonito_cop_readl(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ uint32_t val;
+ PCIBonitoState *s = opaque;
+
+ if (addr >= sizeof(s->boncop)) {
+ return 0;
+ }
+
+ val = ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)];
+
+ return val;
+}
+
+static void bonito_cop_writel(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIBonitoState *s = opaque;
+
+ if (addr >= sizeof(s->boncop)) {
+ return;
+ }
+
+ ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)] = val & 0xffffffff;
+}
+
+static const MemoryRegionOps bonito_cop_ops = {
+ .read = bonito_cop_readl,
+ .write = bonito_cop_writel,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static uint32_t bonito_sbridge_pciaddr(void *opaque, hwaddr addr)
+{
+ PCIBonitoState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t cfgaddr;
+ uint32_t idsel;
+ uint32_t devno;
+ uint32_t funno;
+ uint32_t regno;
+ uint32_t pciaddr;
+
+ /* support type0 pci config */
+ if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) {
+ return 0xffffffff;
+ }
+
+ cfgaddr = addr & 0xffff;
+ cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16;
+
+ idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> BONITO_PCICONF_IDSEL_OFFSET;
+ devno = ctz32(idsel);
+ funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET;
+ regno = (cfgaddr & BONITO_PCICONF_REG_MASK) >> BONITO_PCICONF_REG_OFFSET;
+
+ if (idsel == 0) {
+ fprintf(stderr, "error in bonito pci config address " TARGET_FMT_plx
+ ",pcimap_cfg=%x\n", addr, s->regs[BONITO_PCIMAP_CFG]);
+ exit(1);
+ }
+ pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno);
+ DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n",
+ cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno);
+
+ return pciaddr;
+}
+
+static void bonito_spciconf_writeb(void *opaque, hwaddr addr,
+ uint32_t val)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_writeb "TARGET_FMT_plx" val %x\n", addr, val);
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+ pci_data_write(phb->bus, phb->config_reg, val & 0xff, 1);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+}
+
+static void bonito_spciconf_writew(void *opaque, hwaddr addr,
+ uint32_t val)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_writew "TARGET_FMT_plx" val %x\n", addr, val);
+ assert((addr & 0x1) == 0);
+
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+ pci_data_write(phb->bus, phb->config_reg, val, 2);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+}
+
+static void bonito_spciconf_writel(void *opaque, hwaddr addr,
+ uint32_t val)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
+ assert((addr & 0x3) == 0);
+
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+ pci_data_write(phb->bus, phb->config_reg, val, 4);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+}
+
+static uint32_t bonito_spciconf_readb(void *opaque, hwaddr addr)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_readb "TARGET_FMT_plx"\n", addr);
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return 0xff;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+
+ return pci_data_read(phb->bus, phb->config_reg, 1);
+}
+
+static uint32_t bonito_spciconf_readw(void *opaque, hwaddr addr)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_readw "TARGET_FMT_plx"\n", addr);
+ assert((addr & 0x1) == 0);
+
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return 0xffff;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+
+ return pci_data_read(phb->bus, phb->config_reg, 2);
+}
+
+static uint32_t bonito_spciconf_readl(void *opaque, hwaddr addr)
+{
+ PCIBonitoState *s = opaque;
+ PCIDevice *d = PCI_DEVICE(s);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+ uint32_t pciaddr;
+ uint16_t status;
+
+ DPRINTF("bonito_spciconf_readl "TARGET_FMT_plx"\n", addr);
+ assert((addr & 0x3) == 0);
+
+ pciaddr = bonito_sbridge_pciaddr(s, addr);
+
+ if (pciaddr == 0xffffffff) {
+ return 0xffffffff;
+ }
+
+ /* set the pci address in s->config_reg */
+ phb->config_reg = (pciaddr) | (1u << 31);
+
+ /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
+ status = pci_get_word(d->config + PCI_STATUS);
+ status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
+ pci_set_word(d->config + PCI_STATUS, status);
+
+ return pci_data_read(phb->bus, phb->config_reg, 4);
+}
+
+/* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */
+static const MemoryRegionOps bonito_spciconf_ops = {
+ .old_mmio = {
+ .read = {
+ bonito_spciconf_readb,
+ bonito_spciconf_readw,
+ bonito_spciconf_readl,
+ },
+ .write = {
+ bonito_spciconf_writeb,
+ bonito_spciconf_writew,
+ bonito_spciconf_writel,
+ },
+ },
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+#define BONITO_IRQ_BASE 32
+
+static void pci_bonito_set_irq(void *opaque, int irq_num, int level)
+{
+ BonitoState *s = opaque;
+ qemu_irq *pic = s->pic;
+ PCIBonitoState *bonito_state = s->pci_dev;
+ int internal_irq = irq_num - BONITO_IRQ_BASE;
+
+ if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) {
+ qemu_irq_pulse(*pic);
+ } else { /* level triggered */
+ if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) {
+ qemu_irq_raise(*pic);
+ } else {
+ qemu_irq_lower(*pic);
+ }
+ }
+}
+
+/* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */
+static int pci_bonito_map_irq(PCIDevice * pci_dev, int irq_num)
+{
+ int slot;
+
+ slot = (pci_dev->devfn >> 3);
+
+ switch (slot) {
+ case 5: /* FULONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */
+ return irq_num % 4 + BONITO_IRQ_BASE;
+ case 6: /* FULONG2E_ATI_SLOT, VGA */
+ return 4 + BONITO_IRQ_BASE;
+ case 7: /* FULONG2E_RTL_SLOT, RTL8139 */
+ return 5 + BONITO_IRQ_BASE;
+ case 8 ... 12: /* PCI slot 1 to 4 */
+ return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE;
+ default: /* Unknown device, don't do any translation */
+ return irq_num;
+ }
+}
+
+static void bonito_reset(void *opaque)
+{
+ PCIBonitoState *s = opaque;
+
+ /* set the default value of north bridge registers */
+
+ s->regs[BONITO_BONPONCFG] = 0xc40;
+ s->regs[BONITO_BONGENCFG] = 0x1384;
+ s->regs[BONITO_IODEVCFG] = 0x2bff8010;
+ s->regs[BONITO_SDCFG] = 0x255e0091;
+
+ s->regs[BONITO_GPIODATA] = 0x1ff;
+ s->regs[BONITO_GPIOIE] = 0x1ff;
+ s->regs[BONITO_DQCFG] = 0x8;
+ s->regs[BONITO_MEMSIZE] = 0x10000000;
+ s->regs[BONITO_PCIMAP] = 0x6140;
+}
+
+static const VMStateDescription vmstate_bonito = {
+ .name = "Bonito",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, PCIBonitoState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int bonito_pcihost_initfn(SysBusDevice *dev)
+{
+ PCIHostState *phb = PCI_HOST_BRIDGE(dev);
+
+ phb->bus = pci_register_bus(DEVICE(dev), "pci",
+ pci_bonito_set_irq, pci_bonito_map_irq, dev,
+ get_system_memory(), get_system_io(),
+ 0x28, 32, TYPE_PCI_BUS);
+
+ return 0;
+}
+
+static void bonito_realize(PCIDevice *dev, Error **errp)
+{
+ PCIBonitoState *s = DO_UPCAST(PCIBonitoState, dev, dev);
+ SysBusDevice *sysbus = SYS_BUS_DEVICE(s->pcihost);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
+
+ /* Bonito North Bridge, built on FPGA, VENDOR_ID/DEVICE_ID are "undefined" */
+ pci_config_set_prog_interface(dev->config, 0x00);
+
+ /* set the north bridge register mapping */
+ memory_region_init_io(&s->iomem, OBJECT(s), &bonito_ops, s,
+ "north-bridge-register", BONITO_INTERNAL_REG_SIZE);
+ sysbus_init_mmio(sysbus, &s->iomem);
+ sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE);
+
+ /* set the north bridge pci configure mapping */
+ memory_region_init_io(&phb->conf_mem, OBJECT(s), &bonito_pciconf_ops, s,
+ "north-bridge-pci-config", BONITO_PCICONFIG_SIZE);
+ sysbus_init_mmio(sysbus, &phb->conf_mem);
+ sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE);
+
+ /* set the south bridge pci configure mapping */
+ memory_region_init_io(&phb->data_mem, OBJECT(s), &bonito_spciconf_ops, s,
+ "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE);
+ sysbus_init_mmio(sysbus, &phb->data_mem);
+ sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE);
+
+ memory_region_init_io(&s->iomem_ldma, OBJECT(s), &bonito_ldma_ops, s,
+ "ldma", 0x100);
+ sysbus_init_mmio(sysbus, &s->iomem_ldma);
+ sysbus_mmio_map(sysbus, 3, 0xbfe00200);
+
+ memory_region_init_io(&s->iomem_cop, OBJECT(s), &bonito_cop_ops, s,
+ "cop", 0x100);
+ sysbus_init_mmio(sysbus, &s->iomem_cop);
+ sysbus_mmio_map(sysbus, 4, 0xbfe00300);
+
+ /* Map PCI IO Space 0x1fd0 0000 - 0x1fd1 0000 */
+ memory_region_init_alias(&s->bonito_pciio, OBJECT(s), "isa_mmio",
+ get_system_io(), 0, BONITO_PCIIO_SIZE);
+ sysbus_init_mmio(sysbus, &s->bonito_pciio);
+ sysbus_mmio_map(sysbus, 5, BONITO_PCIIO_BASE);
+
+ /* add pci local io mapping */
+ memory_region_init_alias(&s->bonito_localio, OBJECT(s), "isa_mmio",
+ get_system_io(), 0, BONITO_DEV_SIZE);
+ sysbus_init_mmio(sysbus, &s->bonito_localio);
+ sysbus_mmio_map(sysbus, 6, BONITO_DEV_BASE);
+
+ /* set the default value of north bridge pci config */
+ pci_set_word(dev->config + PCI_COMMAND, 0x0000);
+ pci_set_word(dev->config + PCI_STATUS, 0x0000);
+ pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000);
+ pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000);
+
+ pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00);
+ pci_set_byte(dev->config + PCI_INTERRUPT_PIN, 0x01);
+ pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c);
+ pci_set_byte(dev->config + PCI_MAX_LAT, 0x00);
+
+ qemu_register_reset(bonito_reset, s);
+}
+
+PCIBus *bonito_init(qemu_irq *pic)
+{
+ DeviceState *dev;
+ BonitoState *pcihost;
+ PCIHostState *phb;
+ PCIBonitoState *s;
+ PCIDevice *d;
+
+ dev = qdev_create(NULL, TYPE_BONITO_PCI_HOST_BRIDGE);
+ phb = PCI_HOST_BRIDGE(dev);
+ pcihost = BONITO_PCI_HOST_BRIDGE(dev);
+ pcihost->pic = pic;
+ qdev_init_nofail(dev);
+
+ /* set the pcihost pointer before bonito_initfn is called */
+ d = pci_create(phb->bus, PCI_DEVFN(0, 0), "Bonito");
+ s = DO_UPCAST(PCIBonitoState, dev, d);
+ s->pcihost = pcihost;
+ pcihost->pci_dev = s;
+ qdev_init_nofail(DEVICE(d));
+
+ return phb->bus;
+}
+
+static void bonito_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->realize = bonito_realize;
+ k->vendor_id = 0xdf53;
+ k->device_id = 0x00d5;
+ k->revision = 0x01;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ dc->desc = "Host bridge";
+ dc->vmsd = &vmstate_bonito;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo bonito_info = {
+ .name = "Bonito",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIBonitoState),
+ .class_init = bonito_class_init,
+};
+
+static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = bonito_pcihost_initfn;
+}
+
+static const TypeInfo bonito_pcihost_info = {
+ .name = TYPE_BONITO_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(BonitoState),
+ .class_init = bonito_pcihost_class_init,
+};
+
+static void bonito_register_types(void)
+{
+ type_register_static(&bonito_pcihost_info);
+ type_register_static(&bonito_info);
+}
+
+type_init(bonito_register_types)
diff --git a/src/hw/pci-host/gpex.c b/src/hw/pci-host/gpex.c
new file mode 100644
index 0000000..9d8fb5a
--- /dev/null
+++ b/src/hw/pci-host/gpex.c
@@ -0,0 +1,154 @@
+/*
+ * QEMU Generic PCI Express Bridge Emulation
+ *
+ * Copyright (C) 2015 Alexander Graf <agraf@suse.de>
+ *
+ * Code loosely based on q35.c.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Check out these documents for more information on the device:
+ *
+ * http://www.kernel.org/doc/Documentation/devicetree/bindings/pci/host-generic-pci.txt
+ * http://www.firmware.org/1275/practice/imap/imap0_9d.pdf
+ */
+#include "hw/hw.h"
+#include "hw/pci-host/gpex.h"
+
+/****************************************************************************
+ * GPEX host
+ */
+
+static void gpex_set_irq(void *opaque, int irq_num, int level)
+{
+ GPEXHost *s = opaque;
+
+ qemu_set_irq(s->irq[irq_num], level);
+}
+
+static void gpex_host_realize(DeviceState *dev, Error **errp)
+{
+ PCIHostState *pci = PCI_HOST_BRIDGE(dev);
+ GPEXHost *s = GPEX_HOST(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+ PCIExpressHost *pex = PCIE_HOST_BRIDGE(dev);
+ int i;
+
+ pcie_host_mmcfg_init(pex, PCIE_MMCFG_SIZE_MAX);
+ memory_region_init(&s->io_mmio, OBJECT(s), "gpex_mmio", UINT64_MAX);
+ memory_region_init(&s->io_ioport, OBJECT(s), "gpex_ioport", 64 * 1024);
+
+ sysbus_init_mmio(sbd, &pex->mmio);
+ sysbus_init_mmio(sbd, &s->io_mmio);
+ sysbus_init_mmio(sbd, &s->io_ioport);
+ for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ sysbus_init_irq(sbd, &s->irq[i]);
+ }
+
+ pci->bus = pci_register_bus(dev, "pcie.0", gpex_set_irq,
+ pci_swizzle_map_irq_fn, s, &s->io_mmio,
+ &s->io_ioport, 0, 4, TYPE_PCIE_BUS);
+
+ qdev_set_parent_bus(DEVICE(&s->gpex_root), BUS(pci->bus));
+ qdev_init_nofail(DEVICE(&s->gpex_root));
+}
+
+static const char *gpex_host_root_bus_path(PCIHostState *host_bridge,
+ PCIBus *rootbus)
+{
+ return "0000:00";
+}
+
+static void gpex_host_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
+
+ hc->root_bus_path = gpex_host_root_bus_path;
+ dc->realize = gpex_host_realize;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->fw_name = "pci";
+}
+
+static void gpex_host_initfn(Object *obj)
+{
+ GPEXHost *s = GPEX_HOST(obj);
+ GPEXRootState *root = &s->gpex_root;
+
+ object_initialize(root, sizeof(*root), TYPE_GPEX_ROOT_DEVICE);
+ object_property_add_child(obj, "gpex_root", OBJECT(root), NULL);
+ qdev_prop_set_uint32(DEVICE(root), "addr", PCI_DEVFN(0, 0));
+ qdev_prop_set_bit(DEVICE(root), "multifunction", false);
+}
+
+static const TypeInfo gpex_host_info = {
+ .name = TYPE_GPEX_HOST,
+ .parent = TYPE_PCIE_HOST_BRIDGE,
+ .instance_size = sizeof(GPEXHost),
+ .instance_init = gpex_host_initfn,
+ .class_init = gpex_host_class_init,
+};
+
+/****************************************************************************
+ * GPEX Root D0:F0
+ */
+
+static const VMStateDescription vmstate_gpex_root = {
+ .name = "gpex_root",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(parent_obj, GPEXRootState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void gpex_root_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->desc = "QEMU generic PCIe host bridge";
+ dc->vmsd = &vmstate_gpex_root;
+ k->vendor_id = PCI_VENDOR_ID_REDHAT;
+ k->device_id = PCI_DEVICE_ID_REDHAT_PCIE_HOST;
+ k->revision = 0;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo gpex_root_info = {
+ .name = TYPE_GPEX_ROOT_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(GPEXRootState),
+ .class_init = gpex_root_class_init,
+};
+
+static void gpex_register(void)
+{
+ type_register_static(&gpex_root_info);
+ type_register_static(&gpex_host_info);
+}
+
+type_init(gpex_register)
diff --git a/src/hw/pci-host/grackle.c b/src/hw/pci-host/grackle.c
new file mode 100644
index 0000000..ea31b72
--- /dev/null
+++ b/src/hw/pci-host/grackle.c
@@ -0,0 +1,168 @@
+/*
+ * QEMU Grackle PCI host (heathrow OldWorld PowerMac)
+ *
+ * Copyright (c) 2006-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/pci/pci_host.h"
+#include "hw/ppc/mac.h"
+#include "hw/pci/pci.h"
+
+/* debug Grackle */
+//#define DEBUG_GRACKLE
+
+#ifdef DEBUG_GRACKLE
+#define GRACKLE_DPRINTF(fmt, ...) \
+ do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define GRACKLE_DPRINTF(fmt, ...)
+#endif
+
+#define GRACKLE_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(GrackleState, (obj), TYPE_GRACKLE_PCI_HOST_BRIDGE)
+
+typedef struct GrackleState {
+ PCIHostState parent_obj;
+
+ MemoryRegion pci_mmio;
+ MemoryRegion pci_hole;
+} GrackleState;
+
+/* Don't know if this matches real hardware, but it agrees with OHW. */
+static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+ return (irq_num + (pci_dev->devfn >> 3)) & 3;
+}
+
+static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
+{
+ qemu_irq *pic = opaque;
+
+ GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
+ qemu_set_irq(pic[irq_num + 0x15], level);
+}
+
+PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic,
+ MemoryRegion *address_space_mem,
+ MemoryRegion *address_space_io)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+ PCIHostState *phb;
+ GrackleState *d;
+
+ dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ phb = PCI_HOST_BRIDGE(dev);
+ d = GRACKLE_PCI_HOST_BRIDGE(dev);
+
+ memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
+ memory_region_init_alias(&d->pci_hole, OBJECT(s), "pci-hole", &d->pci_mmio,
+ 0x80000000ULL, 0x7e000000ULL);
+ memory_region_add_subregion(address_space_mem, 0x80000000ULL,
+ &d->pci_hole);
+
+ phb->bus = pci_register_bus(dev, NULL,
+ pci_grackle_set_irq,
+ pci_grackle_map_irq,
+ pic,
+ &d->pci_mmio,
+ address_space_io,
+ 0, 4, TYPE_PCI_BUS);
+
+ pci_create_simple(phb->bus, 0, "grackle");
+
+ sysbus_mmio_map(s, 0, base);
+ sysbus_mmio_map(s, 1, base + 0x00200000);
+
+ return phb->bus;
+}
+
+static int pci_grackle_init_device(SysBusDevice *dev)
+{
+ PCIHostState *phb;
+
+ phb = PCI_HOST_BRIDGE(dev);
+
+ memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops,
+ dev, "pci-conf-idx", 0x1000);
+ memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
+ dev, "pci-data-idx", 0x1000);
+ sysbus_init_mmio(dev, &phb->conf_mem);
+ sysbus_init_mmio(dev, &phb->data_mem);
+
+ return 0;
+}
+
+static void grackle_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ d->config[0x09] = 0x01;
+}
+
+static void grackle_pci_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = grackle_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
+ k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo grackle_pci_info = {
+ .name = "grackle",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = grackle_pci_class_init,
+};
+
+static void pci_grackle_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->init = pci_grackle_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo grackle_pci_host_info = {
+ .name = TYPE_GRACKLE_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(GrackleState),
+ .class_init = pci_grackle_class_init,
+};
+
+static void grackle_register_types(void)
+{
+ type_register_static(&grackle_pci_info);
+ type_register_static(&grackle_pci_host_info);
+}
+
+type_init(grackle_register_types)
diff --git a/src/hw/pci-host/pam.c b/src/hw/pci-host/pam.c
new file mode 100644
index 0000000..17d826c
--- /dev/null
+++ b/src/hw/pci-host/pam.c
@@ -0,0 +1,69 @@
+/*
+ * QEMU Smram/pam logic implementation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2011 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ * Copyright (c) 2012 Jason Baron <jbaron@redhat.com>
+ *
+ * Split out from piix.c
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qom/object.h"
+#include "sysemu/sysemu.h"
+#include "hw/pci-host/pam.h"
+
+void init_pam(DeviceState *dev, MemoryRegion *ram_memory,
+ MemoryRegion *system_memory, MemoryRegion *pci_address_space,
+ PAMMemoryRegion *mem, uint32_t start, uint32_t size)
+{
+ int i;
+
+ /* RAM */
+ memory_region_init_alias(&mem->alias[3], OBJECT(dev), "pam-ram", ram_memory,
+ start, size);
+ /* ROM (XXX: not quite correct) */
+ memory_region_init_alias(&mem->alias[1], OBJECT(dev), "pam-rom", ram_memory,
+ start, size);
+ memory_region_set_readonly(&mem->alias[1], true);
+
+ /* XXX: should distinguish read/write cases */
+ memory_region_init_alias(&mem->alias[0], OBJECT(dev), "pam-pci", pci_address_space,
+ start, size);
+ memory_region_init_alias(&mem->alias[2], OBJECT(dev), "pam-pci", ram_memory,
+ start, size);
+
+ for (i = 0; i < 4; ++i) {
+ memory_region_set_enabled(&mem->alias[i], false);
+ memory_region_add_subregion_overlap(system_memory, start,
+ &mem->alias[i], 1);
+ }
+ mem->current = 0;
+}
+
+void pam_update(PAMMemoryRegion *pam, int idx, uint8_t val)
+{
+ assert(0 <= idx && idx <= 12);
+
+ memory_region_set_enabled(&pam->alias[pam->current], false);
+ pam->current = (val >> ((!(idx & 1)) * 4)) & PAM_ATTR_MASK;
+ memory_region_set_enabled(&pam->alias[pam->current], true);
+}
diff --git a/src/hw/pci-host/piix.c b/src/hw/pci-host/piix.c
new file mode 100644
index 0000000..715208b
--- /dev/null
+++ b/src/hw/pci-host/piix.c
@@ -0,0 +1,882 @@
+/*
+ * QEMU i440FX/PIIX3 PCI Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/hw.h"
+#include "hw/i386/pc.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_host.h"
+#include "hw/isa/isa.h"
+#include "hw/sysbus.h"
+#include "qemu/range.h"
+#include "hw/xen/xen.h"
+#include "hw/pci-host/pam.h"
+#include "sysemu/sysemu.h"
+#include "hw/i386/ioapic.h"
+#include "qapi/visitor.h"
+#include "qemu/error-report.h"
+
+/*
+ * I440FX chipset data sheet.
+ * http://download.intel.com/design/chipsets/datashts/29054901.pdf
+ */
+
+#define I440FX_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(I440FXState, (obj), TYPE_I440FX_PCI_HOST_BRIDGE)
+
+typedef struct I440FXState {
+ PCIHostState parent_obj;
+ PcPciInfo pci_info;
+ uint64_t pci_hole64_size;
+ uint32_t short_root_bus;
+} I440FXState;
+
+#define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */
+#define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */
+#define XEN_PIIX_NUM_PIRQS 128ULL
+#define PIIX_PIRQC 0x60
+
+/*
+ * Reset Control Register: PCI-accessible ISA-Compatible Register at address
+ * 0xcf9, provided by the PCI/ISA bridge (PIIX3 PCI function 0, 8086:7000).
+ */
+#define RCR_IOPORT 0xcf9
+
+typedef struct PIIX3State {
+ PCIDevice dev;
+
+ /*
+ * bitmap to track pic levels.
+ * The pic level is the logical OR of all the PCI irqs mapped to it
+ * So one PIC level is tracked by PIIX_NUM_PIRQS bits.
+ *
+ * PIRQ is mapped to PIC pins, we track it by
+ * PIIX_NUM_PIRQS * PIIX_NUM_PIC_IRQS = 64 bits with
+ * pic_irq * PIIX_NUM_PIRQS + pirq
+ */
+#if PIIX_NUM_PIC_IRQS * PIIX_NUM_PIRQS > 64
+#error "unable to encode pic state in 64bit in pic_levels."
+#endif
+ uint64_t pic_levels;
+
+ qemu_irq *pic;
+
+ /* This member isn't used. Just for save/load compatibility */
+ int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS];
+
+ /* Reset Control Register contents */
+ uint8_t rcr;
+
+ /* IO memory region for Reset Control Register (RCR_IOPORT) */
+ MemoryRegion rcr_mem;
+} PIIX3State;
+
+#define TYPE_PIIX3_PCI_DEVICE "pci-piix3"
+#define PIIX3_PCI_DEVICE(obj) \
+ OBJECT_CHECK(PIIX3State, (obj), TYPE_PIIX3_PCI_DEVICE)
+
+#define I440FX_PCI_DEVICE(obj) \
+ OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
+
+struct PCII440FXState {
+ /*< private >*/
+ PCIDevice parent_obj;
+ /*< public >*/
+
+ MemoryRegion *system_memory;
+ MemoryRegion *pci_address_space;
+ MemoryRegion *ram_memory;
+ PAMMemoryRegion pam_regions[13];
+ MemoryRegion smram_region;
+ MemoryRegion smram, low_smram;
+};
+
+
+#define I440FX_PAM 0x59
+#define I440FX_PAM_SIZE 7
+#define I440FX_SMRAM 0x72
+
+/* Older coreboot versions (4.0 and older) read a config register that doesn't
+ * exist in real hardware, to get the RAM size from QEMU.
+ */
+#define I440FX_COREBOOT_RAM_SIZE 0x57
+
+static void piix3_set_irq(void *opaque, int pirq, int level);
+static PCIINTxRoute piix3_route_intx_pin_to_irq(void *opaque, int pci_intx);
+static void piix3_write_config_xen(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len);
+
+/* return the global irq number corresponding to a given device irq
+ pin. We could also use the bus number to have a more precise
+ mapping. */
+static int pci_slot_get_pirq(PCIDevice *pci_dev, int pci_intx)
+{
+ int slot_addend;
+ slot_addend = (pci_dev->devfn >> 3) - 1;
+ return (pci_intx + slot_addend) & 3;
+}
+
+static void i440fx_update_memory_mappings(PCII440FXState *d)
+{
+ int i;
+ PCIDevice *pd = PCI_DEVICE(d);
+
+ memory_region_transaction_begin();
+ for (i = 0; i < 13; i++) {
+ pam_update(&d->pam_regions[i], i,
+ pd->config[I440FX_PAM + ((i + 1) / 2)]);
+ }
+ memory_region_set_enabled(&d->smram_region,
+ !(pd->config[I440FX_SMRAM] & SMRAM_D_OPEN));
+ memory_region_set_enabled(&d->smram,
+ pd->config[I440FX_SMRAM] & SMRAM_G_SMRAME);
+ memory_region_transaction_commit();
+}
+
+
+static void i440fx_write_config(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ PCII440FXState *d = I440FX_PCI_DEVICE(dev);
+
+ /* XXX: implement SMRAM.D_LOCK */
+ pci_default_write_config(dev, address, val, len);
+ if (ranges_overlap(address, len, I440FX_PAM, I440FX_PAM_SIZE) ||
+ range_covers_byte(address, len, I440FX_SMRAM)) {
+ i440fx_update_memory_mappings(d);
+ }
+}
+
+static int i440fx_load_old(QEMUFile* f, void *opaque, int version_id)
+{
+ PCII440FXState *d = opaque;
+ PCIDevice *pd = PCI_DEVICE(d);
+ int ret, i;
+ uint8_t smm_enabled;
+
+ ret = pci_device_load(pd, f);
+ if (ret < 0)
+ return ret;
+ i440fx_update_memory_mappings(d);
+ qemu_get_8s(f, &smm_enabled);
+
+ if (version_id == 2) {
+ for (i = 0; i < PIIX_NUM_PIRQS; i++) {
+ qemu_get_be32(f); /* dummy load for compatibility */
+ }
+ }
+
+ return 0;
+}
+
+static int i440fx_post_load(void *opaque, int version_id)
+{
+ PCII440FXState *d = opaque;
+
+ i440fx_update_memory_mappings(d);
+ return 0;
+}
+
+static const VMStateDescription vmstate_i440fx = {
+ .name = "I440FX",
+ .version_id = 3,
+ .minimum_version_id = 3,
+ .minimum_version_id_old = 1,
+ .load_state_old = i440fx_load_old,
+ .post_load = i440fx_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(parent_obj, PCII440FXState),
+ /* Used to be smm_enabled, which was basically always zero because
+ * SeaBIOS hardly uses SMM. SMRAM is now handled by CPU code.
+ */
+ VMSTATE_UNUSED(1),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void i440fx_pcihost_get_pci_hole_start(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
+ uint32_t value = s->pci_info.w32.begin;
+
+ visit_type_uint32(v, &value, name, errp);
+}
+
+static void i440fx_pcihost_get_pci_hole_end(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
+ uint32_t value = s->pci_info.w32.end;
+
+ visit_type_uint32(v, &value, name, errp);
+}
+
+static void i440fx_pcihost_get_pci_hole64_start(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Range w64;
+
+ pci_bus_get_w64_range(h->bus, &w64);
+
+ visit_type_uint64(v, &w64.begin, name, errp);
+}
+
+static void i440fx_pcihost_get_pci_hole64_end(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Range w64;
+
+ pci_bus_get_w64_range(h->bus, &w64);
+
+ visit_type_uint64(v, &w64.end, name, errp);
+}
+
+static void i440fx_pcihost_initfn(Object *obj)
+{
+ PCIHostState *s = PCI_HOST_BRIDGE(obj);
+ I440FXState *d = I440FX_PCI_HOST_BRIDGE(obj);
+
+ memory_region_init_io(&s->conf_mem, obj, &pci_host_conf_le_ops, s,
+ "pci-conf-idx", 4);
+ memory_region_init_io(&s->data_mem, obj, &pci_host_data_le_ops, s,
+ "pci-conf-data", 4);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE_START, "int",
+ i440fx_pcihost_get_pci_hole_start,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE_END, "int",
+ i440fx_pcihost_get_pci_hole_end,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE64_START, "int",
+ i440fx_pcihost_get_pci_hole64_start,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE64_END, "int",
+ i440fx_pcihost_get_pci_hole64_end,
+ NULL, NULL, NULL, NULL);
+
+ d->pci_info.w32.end = IO_APIC_DEFAULT_ADDRESS;
+}
+
+static void i440fx_pcihost_realize(DeviceState *dev, Error **errp)
+{
+ PCIHostState *s = PCI_HOST_BRIDGE(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+
+ sysbus_add_io(sbd, 0xcf8, &s->conf_mem);
+ sysbus_init_ioports(sbd, 0xcf8, 4);
+
+ sysbus_add_io(sbd, 0xcfc, &s->data_mem);
+ sysbus_init_ioports(sbd, 0xcfc, 4);
+}
+
+static void i440fx_realize(PCIDevice *dev, Error **errp)
+{
+ dev->config[I440FX_SMRAM] = 0x02;
+
+ if (object_property_get_bool(qdev_get_machine(), "iommu", NULL)) {
+ error_report("warning: i440fx doesn't support emulated iommu");
+ }
+}
+
+PCIBus *i440fx_init(const char *host_type, const char *pci_type,
+ PCII440FXState **pi440fx_state,
+ int *piix3_devfn,
+ ISABus **isa_bus, qemu_irq *pic,
+ MemoryRegion *address_space_mem,
+ MemoryRegion *address_space_io,
+ ram_addr_t ram_size,
+ ram_addr_t below_4g_mem_size,
+ ram_addr_t above_4g_mem_size,
+ MemoryRegion *pci_address_space,
+ MemoryRegion *ram_memory)
+{
+ DeviceState *dev;
+ PCIBus *b;
+ PCIDevice *d;
+ PCIHostState *s;
+ PIIX3State *piix3;
+ PCII440FXState *f;
+ unsigned i;
+ I440FXState *i440fx;
+
+ dev = qdev_create(NULL, host_type);
+ s = PCI_HOST_BRIDGE(dev);
+ b = pci_bus_new(dev, NULL, pci_address_space,
+ address_space_io, 0, TYPE_PCI_BUS);
+ s->bus = b;
+ object_property_add_child(qdev_get_machine(), "i440fx", OBJECT(dev), NULL);
+ qdev_init_nofail(dev);
+
+ d = pci_create_simple(b, 0, pci_type);
+ *pi440fx_state = I440FX_PCI_DEVICE(d);
+ f = *pi440fx_state;
+ f->system_memory = address_space_mem;
+ f->pci_address_space = pci_address_space;
+ f->ram_memory = ram_memory;
+
+ i440fx = I440FX_PCI_HOST_BRIDGE(dev);
+ i440fx->pci_info.w32.begin = below_4g_mem_size;
+
+ /* setup pci memory mapping */
+ pc_pci_as_mapping_init(OBJECT(f), f->system_memory,
+ f->pci_address_space);
+
+ /* if *disabled* show SMRAM to all CPUs */
+ memory_region_init_alias(&f->smram_region, OBJECT(d), "smram-region",
+ f->pci_address_space, 0xa0000, 0x20000);
+ memory_region_add_subregion_overlap(f->system_memory, 0xa0000,
+ &f->smram_region, 1);
+ memory_region_set_enabled(&f->smram_region, true);
+
+ /* smram, as seen by SMM CPUs */
+ memory_region_init(&f->smram, OBJECT(d), "smram", 1ull << 32);
+ memory_region_set_enabled(&f->smram, true);
+ memory_region_init_alias(&f->low_smram, OBJECT(d), "smram-low",
+ f->ram_memory, 0xa0000, 0x20000);
+ memory_region_set_enabled(&f->low_smram, true);
+ memory_region_add_subregion(&f->smram, 0xa0000, &f->low_smram);
+ object_property_add_const_link(qdev_get_machine(), "smram",
+ OBJECT(&f->smram), &error_abort);
+
+ init_pam(dev, f->ram_memory, f->system_memory, f->pci_address_space,
+ &f->pam_regions[0], PAM_BIOS_BASE, PAM_BIOS_SIZE);
+ for (i = 0; i < 12; ++i) {
+ init_pam(dev, f->ram_memory, f->system_memory, f->pci_address_space,
+ &f->pam_regions[i+1], PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE,
+ PAM_EXPAN_SIZE);
+ }
+
+ /* Xen supports additional interrupt routes from the PCI devices to
+ * the IOAPIC: the four pins of each PCI device on the bus are also
+ * connected to the IOAPIC directly.
+ * These additional routes can be discovered through ACPI. */
+ if (xen_enabled()) {
+ PCIDevice *pci_dev = pci_create_simple_multifunction(b,
+ -1, true, "PIIX3-xen");
+ piix3 = PIIX3_PCI_DEVICE(pci_dev);
+ pci_bus_irqs(b, xen_piix3_set_irq, xen_pci_slot_get_pirq,
+ piix3, XEN_PIIX_NUM_PIRQS);
+ } else {
+ PCIDevice *pci_dev = pci_create_simple_multifunction(b,
+ -1, true, "PIIX3");
+ piix3 = PIIX3_PCI_DEVICE(pci_dev);
+ pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3,
+ PIIX_NUM_PIRQS);
+ pci_bus_set_route_irq_fn(b, piix3_route_intx_pin_to_irq);
+ }
+ piix3->pic = pic;
+ *isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(piix3), "isa.0"));
+
+ *piix3_devfn = piix3->dev.devfn;
+
+ ram_size = ram_size / 8 / 1024 / 1024;
+ if (ram_size > 255) {
+ ram_size = 255;
+ }
+ d->config[I440FX_COREBOOT_RAM_SIZE] = ram_size;
+
+ i440fx_update_memory_mappings(f);
+
+ return b;
+}
+
+PCIBus *find_i440fx(void)
+{
+ PCIHostState *s = OBJECT_CHECK(PCIHostState,
+ object_resolve_path("/machine/i440fx", NULL),
+ TYPE_PCI_HOST_BRIDGE);
+ return s ? s->bus : NULL;
+}
+
+/* PIIX3 PCI to ISA bridge */
+static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq)
+{
+ qemu_set_irq(piix3->pic[pic_irq],
+ !!(piix3->pic_levels &
+ (((1ULL << PIIX_NUM_PIRQS) - 1) <<
+ (pic_irq * PIIX_NUM_PIRQS))));
+}
+
+static void piix3_set_irq_level_internal(PIIX3State *piix3, int pirq, int level)
+{
+ int pic_irq;
+ uint64_t mask;
+
+ pic_irq = piix3->dev.config[PIIX_PIRQC + pirq];
+ if (pic_irq >= PIIX_NUM_PIC_IRQS) {
+ return;
+ }
+
+ mask = 1ULL << ((pic_irq * PIIX_NUM_PIRQS) + pirq);
+ piix3->pic_levels &= ~mask;
+ piix3->pic_levels |= mask * !!level;
+}
+
+static void piix3_set_irq_level(PIIX3State *piix3, int pirq, int level)
+{
+ int pic_irq;
+
+ pic_irq = piix3->dev.config[PIIX_PIRQC + pirq];
+ if (pic_irq >= PIIX_NUM_PIC_IRQS) {
+ return;
+ }
+
+ piix3_set_irq_level_internal(piix3, pirq, level);
+
+ piix3_set_irq_pic(piix3, pic_irq);
+}
+
+static void piix3_set_irq(void *opaque, int pirq, int level)
+{
+ PIIX3State *piix3 = opaque;
+ piix3_set_irq_level(piix3, pirq, level);
+}
+
+static PCIINTxRoute piix3_route_intx_pin_to_irq(void *opaque, int pin)
+{
+ PIIX3State *piix3 = opaque;
+ int irq = piix3->dev.config[PIIX_PIRQC + pin];
+ PCIINTxRoute route;
+
+ if (irq < PIIX_NUM_PIC_IRQS) {
+ route.mode = PCI_INTX_ENABLED;
+ route.irq = irq;
+ } else {
+ route.mode = PCI_INTX_DISABLED;
+ route.irq = -1;
+ }
+ return route;
+}
+
+/* irq routing is changed. so rebuild bitmap */
+static void piix3_update_irq_levels(PIIX3State *piix3)
+{
+ int pirq;
+
+ piix3->pic_levels = 0;
+ for (pirq = 0; pirq < PIIX_NUM_PIRQS; pirq++) {
+ piix3_set_irq_level(piix3, pirq,
+ pci_bus_get_irq_level(piix3->dev.bus, pirq));
+ }
+}
+
+static void piix3_write_config(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ pci_default_write_config(dev, address, val, len);
+ if (ranges_overlap(address, len, PIIX_PIRQC, 4)) {
+ PIIX3State *piix3 = PIIX3_PCI_DEVICE(dev);
+ int pic_irq;
+
+ pci_bus_fire_intx_routing_notifier(piix3->dev.bus);
+ piix3_update_irq_levels(piix3);
+ for (pic_irq = 0; pic_irq < PIIX_NUM_PIC_IRQS; pic_irq++) {
+ piix3_set_irq_pic(piix3, pic_irq);
+ }
+ }
+}
+
+static void piix3_write_config_xen(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ xen_piix_pci_write_config_client(address, val, len);
+ piix3_write_config(dev, address, val, len);
+}
+
+static void piix3_reset(void *opaque)
+{
+ PIIX3State *d = opaque;
+ uint8_t *pci_conf = d->dev.config;
+
+ pci_conf[0x04] = 0x07; /* master, memory and I/O */
+ pci_conf[0x05] = 0x00;
+ pci_conf[0x06] = 0x00;
+ pci_conf[0x07] = 0x02; /* PCI_status_devsel_medium */
+ pci_conf[0x4c] = 0x4d;
+ pci_conf[0x4e] = 0x03;
+ pci_conf[0x4f] = 0x00;
+ pci_conf[0x60] = 0x80;
+ pci_conf[0x61] = 0x80;
+ pci_conf[0x62] = 0x80;
+ pci_conf[0x63] = 0x80;
+ pci_conf[0x69] = 0x02;
+ pci_conf[0x70] = 0x80;
+ pci_conf[0x76] = 0x0c;
+ pci_conf[0x77] = 0x0c;
+ pci_conf[0x78] = 0x02;
+ pci_conf[0x79] = 0x00;
+ pci_conf[0x80] = 0x00;
+ pci_conf[0x82] = 0x00;
+ pci_conf[0xa0] = 0x08;
+ pci_conf[0xa2] = 0x00;
+ pci_conf[0xa3] = 0x00;
+ pci_conf[0xa4] = 0x00;
+ pci_conf[0xa5] = 0x00;
+ pci_conf[0xa6] = 0x00;
+ pci_conf[0xa7] = 0x00;
+ pci_conf[0xa8] = 0x0f;
+ pci_conf[0xaa] = 0x00;
+ pci_conf[0xab] = 0x00;
+ pci_conf[0xac] = 0x00;
+ pci_conf[0xae] = 0x00;
+
+ d->pic_levels = 0;
+ d->rcr = 0;
+}
+
+static int piix3_post_load(void *opaque, int version_id)
+{
+ PIIX3State *piix3 = opaque;
+ int pirq;
+
+ /* Because the i8259 has not been deserialized yet, qemu_irq_raise
+ * might bring the system to a different state than the saved one;
+ * for example, the interrupt could be masked but the i8259 would
+ * not know that yet and would trigger an interrupt in the CPU.
+ *
+ * Here, we update irq levels without raising the interrupt.
+ * Interrupt state will be deserialized separately through the i8259.
+ */
+ piix3->pic_levels = 0;
+ for (pirq = 0; pirq < PIIX_NUM_PIRQS; pirq++) {
+ piix3_set_irq_level_internal(piix3, pirq,
+ pci_bus_get_irq_level(piix3->dev.bus, pirq));
+ }
+ return 0;
+}
+
+static void piix3_pre_save(void *opaque)
+{
+ int i;
+ PIIX3State *piix3 = opaque;
+
+ for (i = 0; i < ARRAY_SIZE(piix3->pci_irq_levels_vmstate); i++) {
+ piix3->pci_irq_levels_vmstate[i] =
+ pci_bus_get_irq_level(piix3->dev.bus, i);
+ }
+}
+
+static bool piix3_rcr_needed(void *opaque)
+{
+ PIIX3State *piix3 = opaque;
+
+ return (piix3->rcr != 0);
+}
+
+static const VMStateDescription vmstate_piix3_rcr = {
+ .name = "PIIX3/rcr",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = piix3_rcr_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(rcr, PIIX3State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_piix3 = {
+ .name = "PIIX3",
+ .version_id = 3,
+ .minimum_version_id = 2,
+ .post_load = piix3_post_load,
+ .pre_save = piix3_pre_save,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, PIIX3State),
+ VMSTATE_INT32_ARRAY_V(pci_irq_levels_vmstate, PIIX3State,
+ PIIX_NUM_PIRQS, 3),
+ VMSTATE_END_OF_LIST()
+ },
+ .subsections = (const VMStateDescription*[]) {
+ &vmstate_piix3_rcr,
+ NULL
+ }
+};
+
+
+static void rcr_write(void *opaque, hwaddr addr, uint64_t val, unsigned len)
+{
+ PIIX3State *d = opaque;
+
+ if (val & 4) {
+ qemu_system_reset_request();
+ return;
+ }
+ d->rcr = val & 2; /* keep System Reset type only */
+}
+
+static uint64_t rcr_read(void *opaque, hwaddr addr, unsigned len)
+{
+ PIIX3State *d = opaque;
+
+ return d->rcr;
+}
+
+static const MemoryRegionOps rcr_ops = {
+ .read = rcr_read,
+ .write = rcr_write,
+ .endianness = DEVICE_LITTLE_ENDIAN
+};
+
+static void piix3_realize(PCIDevice *dev, Error **errp)
+{
+ PIIX3State *d = PIIX3_PCI_DEVICE(dev);
+
+ isa_bus_new(DEVICE(d), get_system_memory(),
+ pci_address_space_io(dev));
+
+ memory_region_init_io(&d->rcr_mem, OBJECT(dev), &rcr_ops, d,
+ "piix3-reset-control", 1);
+ memory_region_add_subregion_overlap(pci_address_space_io(dev), RCR_IOPORT,
+ &d->rcr_mem, 1);
+
+ qemu_register_reset(piix3_reset, d);
+}
+
+static void pci_piix3_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ dc->desc = "ISA bridge";
+ dc->vmsd = &vmstate_piix3;
+ dc->hotpluggable = false;
+ k->realize = piix3_realize;
+ k->vendor_id = PCI_VENDOR_ID_INTEL;
+ /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
+ k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0;
+ k->class_id = PCI_CLASS_BRIDGE_ISA;
+ /*
+ * Reason: part of PIIX3 southbridge, needs to be wired up by
+ * pc_piix.c's pc_init1()
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo piix3_pci_type_info = {
+ .name = TYPE_PIIX3_PCI_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PIIX3State),
+ .abstract = true,
+ .class_init = pci_piix3_class_init,
+};
+
+static void piix3_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->config_write = piix3_write_config;
+}
+
+static const TypeInfo piix3_info = {
+ .name = "PIIX3",
+ .parent = TYPE_PIIX3_PCI_DEVICE,
+ .class_init = piix3_class_init,
+};
+
+static void piix3_xen_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->config_write = piix3_write_config_xen;
+};
+
+static const TypeInfo piix3_xen_info = {
+ .name = "PIIX3-xen",
+ .parent = TYPE_PIIX3_PCI_DEVICE,
+ .class_init = piix3_xen_class_init,
+};
+
+static void i440fx_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->realize = i440fx_realize;
+ k->config_write = i440fx_write_config;
+ k->vendor_id = PCI_VENDOR_ID_INTEL;
+ k->device_id = PCI_DEVICE_ID_INTEL_82441;
+ k->revision = 0x02;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ dc->desc = "Host bridge";
+ dc->vmsd = &vmstate_i440fx;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+ dc->hotpluggable = false;
+}
+
+static const TypeInfo i440fx_info = {
+ .name = TYPE_I440FX_PCI_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCII440FXState),
+ .class_init = i440fx_class_init,
+};
+
+/* IGD Passthrough Host Bridge. */
+typedef struct {
+ uint8_t offset;
+ uint8_t len;
+} IGDHostInfo;
+
+/* Here we just expose minimal host bridge offset subset. */
+static const IGDHostInfo igd_host_bridge_infos[] = {
+ {0x08, 2}, /* revision id */
+ {0x2c, 2}, /* sybsystem vendor id */
+ {0x2e, 2}, /* sybsystem id */
+ {0x50, 2}, /* SNB: processor graphics control register */
+ {0x52, 2}, /* processor graphics control register */
+ {0xa4, 4}, /* SNB: graphics base of stolen memory */
+ {0xa8, 4}, /* SNB: base of GTT stolen memory */
+};
+
+static int host_pci_config_read(int pos, int len, uint32_t val)
+{
+ char path[PATH_MAX];
+ int config_fd;
+ ssize_t size = sizeof(path);
+ /* Access real host bridge. */
+ int rc = snprintf(path, size, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/%s",
+ 0, 0, 0, 0, "config");
+ int ret = 0;
+
+ if (rc >= size || rc < 0) {
+ return -ENODEV;
+ }
+
+ config_fd = open(path, O_RDWR);
+ if (config_fd < 0) {
+ return -ENODEV;
+ }
+
+ if (lseek(config_fd, pos, SEEK_SET) != pos) {
+ ret = -errno;
+ goto out;
+ }
+ do {
+ rc = read(config_fd, (uint8_t *)&val, len);
+ } while (rc < 0 && (errno == EINTR || errno == EAGAIN));
+ if (rc != len) {
+ ret = -errno;
+ }
+out:
+ close(config_fd);
+ return ret;
+}
+
+static int igd_pt_i440fx_initfn(struct PCIDevice *pci_dev)
+{
+ uint32_t val = 0;
+ int rc, i, num;
+ int pos, len;
+
+ num = ARRAY_SIZE(igd_host_bridge_infos);
+ for (i = 0; i < num; i++) {
+ pos = igd_host_bridge_infos[i].offset;
+ len = igd_host_bridge_infos[i].len;
+ rc = host_pci_config_read(pos, len, val);
+ if (rc) {
+ return -ENODEV;
+ }
+ pci_default_write_config(pci_dev, pos, val, len);
+ }
+
+ return 0;
+}
+
+static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->init = igd_pt_i440fx_initfn;
+ dc->desc = "IGD Passthrough Host bridge";
+}
+
+static const TypeInfo igd_passthrough_i440fx_info = {
+ .name = TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE,
+ .parent = TYPE_I440FX_PCI_DEVICE,
+ .instance_size = sizeof(PCII440FXState),
+ .class_init = igd_passthrough_i440fx_class_init,
+};
+
+static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
+ PCIBus *rootbus)
+{
+ I440FXState *s = I440FX_PCI_HOST_BRIDGE(host_bridge);
+
+ /* For backwards compat with old device paths */
+ if (s->short_root_bus) {
+ return "0000";
+ }
+ return "0000:00";
+}
+
+static Property i440fx_props[] = {
+ DEFINE_PROP_SIZE(PCI_HOST_PROP_PCI_HOLE64_SIZE, I440FXState,
+ pci_hole64_size, DEFAULT_PCI_HOLE64_SIZE),
+ DEFINE_PROP_UINT32("short_root_bus", I440FXState, short_root_bus, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
+
+ hc->root_bus_path = i440fx_pcihost_root_bus_path;
+ dc->realize = i440fx_pcihost_realize;
+ dc->fw_name = "pci";
+ dc->props = i440fx_props;
+}
+
+static const TypeInfo i440fx_pcihost_info = {
+ .name = TYPE_I440FX_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(I440FXState),
+ .instance_init = i440fx_pcihost_initfn,
+ .class_init = i440fx_pcihost_class_init,
+};
+
+static void i440fx_register_types(void)
+{
+ type_register_static(&i440fx_info);
+ type_register_static(&igd_passthrough_i440fx_info);
+ type_register_static(&piix3_pci_type_info);
+ type_register_static(&piix3_info);
+ type_register_static(&piix3_xen_info);
+ type_register_static(&i440fx_pcihost_info);
+}
+
+type_init(i440fx_register_types)
diff --git a/src/hw/pci-host/ppce500.c b/src/hw/pci-host/ppce500.c
new file mode 100644
index 0000000..50add34
--- /dev/null
+++ b/src/hw/pci-host/ppce500.c
@@ -0,0 +1,550 @@
+/*
+ * QEMU PowerPC E500 embedded processors pci controller emulation
+ *
+ * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * This file is derived from hw/ppc4xx_pci.c,
+ * the copyright for that material belongs to the original owners.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include "hw/hw.h"
+#include "hw/ppc/e500-ccsr.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_host.h"
+#include "qemu/bswap.h"
+#include "hw/pci-host/ppce500.h"
+
+#ifdef DEBUG_PCI
+#define pci_debug(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
+#else
+#define pci_debug(fmt, ...)
+#endif
+
+#define PCIE500_CFGADDR 0x0
+#define PCIE500_CFGDATA 0x4
+#define PCIE500_REG_BASE 0xC00
+#define PCIE500_ALL_SIZE 0x1000
+#define PCIE500_REG_SIZE (PCIE500_ALL_SIZE - PCIE500_REG_BASE)
+
+#define PCIE500_PCI_IOLEN 0x10000ULL
+
+#define PPCE500_PCI_CONFIG_ADDR 0x0
+#define PPCE500_PCI_CONFIG_DATA 0x4
+#define PPCE500_PCI_INTACK 0x8
+
+#define PPCE500_PCI_OW1 (0xC20 - PCIE500_REG_BASE)
+#define PPCE500_PCI_OW2 (0xC40 - PCIE500_REG_BASE)
+#define PPCE500_PCI_OW3 (0xC60 - PCIE500_REG_BASE)
+#define PPCE500_PCI_OW4 (0xC80 - PCIE500_REG_BASE)
+#define PPCE500_PCI_IW3 (0xDA0 - PCIE500_REG_BASE)
+#define PPCE500_PCI_IW2 (0xDC0 - PCIE500_REG_BASE)
+#define PPCE500_PCI_IW1 (0xDE0 - PCIE500_REG_BASE)
+
+#define PPCE500_PCI_GASKET_TIMR (0xE20 - PCIE500_REG_BASE)
+
+#define PCI_POTAR 0x0
+#define PCI_POTEAR 0x4
+#define PCI_POWBAR 0x8
+#define PCI_POWAR 0x10
+
+#define PCI_PITAR 0x0
+#define PCI_PIWBAR 0x8
+#define PCI_PIWBEAR 0xC
+#define PCI_PIWAR 0x10
+
+#define PPCE500_PCI_NR_POBS 5
+#define PPCE500_PCI_NR_PIBS 3
+
+#define PIWAR_EN 0x80000000 /* Enable */
+#define PIWAR_PF 0x20000000 /* prefetch */
+#define PIWAR_TGI_LOCAL 0x00f00000 /* target - local memory */
+#define PIWAR_READ_SNOOP 0x00050000
+#define PIWAR_WRITE_SNOOP 0x00005000
+#define PIWAR_SZ_MASK 0x0000003f
+
+struct pci_outbound {
+ uint32_t potar;
+ uint32_t potear;
+ uint32_t powbar;
+ uint32_t powar;
+ MemoryRegion mem;
+};
+
+struct pci_inbound {
+ uint32_t pitar;
+ uint32_t piwbar;
+ uint32_t piwbear;
+ uint32_t piwar;
+ MemoryRegion mem;
+};
+
+#define TYPE_PPC_E500_PCI_HOST_BRIDGE "e500-pcihost"
+
+#define PPC_E500_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(PPCE500PCIState, (obj), TYPE_PPC_E500_PCI_HOST_BRIDGE)
+
+struct PPCE500PCIState {
+ PCIHostState parent_obj;
+
+ struct pci_outbound pob[PPCE500_PCI_NR_POBS];
+ struct pci_inbound pib[PPCE500_PCI_NR_PIBS];
+ uint32_t gasket_time;
+ qemu_irq irq[PCI_NUM_PINS];
+ uint32_t irq_num[PCI_NUM_PINS];
+ uint32_t first_slot;
+ uint32_t first_pin_irq;
+ AddressSpace bm_as;
+ MemoryRegion bm;
+ /* mmio maps */
+ MemoryRegion container;
+ MemoryRegion iomem;
+ MemoryRegion pio;
+ MemoryRegion busmem;
+};
+
+#define TYPE_PPC_E500_PCI_BRIDGE "e500-host-bridge"
+#define PPC_E500_PCI_BRIDGE(obj) \
+ OBJECT_CHECK(PPCE500PCIBridgeState, (obj), TYPE_PPC_E500_PCI_BRIDGE)
+
+struct PPCE500PCIBridgeState {
+ /*< private >*/
+ PCIDevice parent;
+ /*< public >*/
+
+ MemoryRegion bar0;
+};
+
+typedef struct PPCE500PCIBridgeState PPCE500PCIBridgeState;
+typedef struct PPCE500PCIState PPCE500PCIState;
+
+static uint64_t pci_reg_read4(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ PPCE500PCIState *pci = opaque;
+ unsigned long win;
+ uint32_t value = 0;
+ int idx;
+
+ win = addr & 0xfe0;
+
+ switch (win) {
+ case PPCE500_PCI_OW1:
+ case PPCE500_PCI_OW2:
+ case PPCE500_PCI_OW3:
+ case PPCE500_PCI_OW4:
+ idx = (addr >> 5) & 0x7;
+ switch (addr & 0x1F) {
+ case PCI_POTAR:
+ value = pci->pob[idx].potar;
+ break;
+ case PCI_POTEAR:
+ value = pci->pob[idx].potear;
+ break;
+ case PCI_POWBAR:
+ value = pci->pob[idx].powbar;
+ break;
+ case PCI_POWAR:
+ value = pci->pob[idx].powar;
+ break;
+ default:
+ break;
+ }
+ break;
+
+ case PPCE500_PCI_IW3:
+ case PPCE500_PCI_IW2:
+ case PPCE500_PCI_IW1:
+ idx = ((addr >> 5) & 0x3) - 1;
+ switch (addr & 0x1F) {
+ case PCI_PITAR:
+ value = pci->pib[idx].pitar;
+ break;
+ case PCI_PIWBAR:
+ value = pci->pib[idx].piwbar;
+ break;
+ case PCI_PIWBEAR:
+ value = pci->pib[idx].piwbear;
+ break;
+ case PCI_PIWAR:
+ value = pci->pib[idx].piwar;
+ break;
+ default:
+ break;
+ };
+ break;
+
+ case PPCE500_PCI_GASKET_TIMR:
+ value = pci->gasket_time;
+ break;
+
+ default:
+ break;
+ }
+
+ pci_debug("%s: win:%lx(addr:" TARGET_FMT_plx ") -> value:%x\n", __func__,
+ win, addr, value);
+ return value;
+}
+
+/* DMA mapping */
+static void e500_update_piw(PPCE500PCIState *pci, int idx)
+{
+ uint64_t tar = ((uint64_t)pci->pib[idx].pitar) << 12;
+ uint64_t wbar = ((uint64_t)pci->pib[idx].piwbar) << 12;
+ uint64_t war = pci->pib[idx].piwar;
+ uint64_t size = 2ULL << (war & PIWAR_SZ_MASK);
+ MemoryRegion *address_space_mem = get_system_memory();
+ MemoryRegion *mem = &pci->pib[idx].mem;
+ MemoryRegion *bm = &pci->bm;
+ char *name;
+
+ if (memory_region_is_mapped(mem)) {
+ /* Before we modify anything, unmap and destroy the region */
+ memory_region_del_subregion(bm, mem);
+ object_unparent(OBJECT(mem));
+ }
+
+ if (!(war & PIWAR_EN)) {
+ /* Not enabled, nothing to do */
+ return;
+ }
+
+ name = g_strdup_printf("PCI Inbound Window %d", idx);
+ memory_region_init_alias(mem, OBJECT(pci), name, address_space_mem, tar,
+ size);
+ memory_region_add_subregion_overlap(bm, wbar, mem, -1);
+ g_free(name);
+
+ pci_debug("%s: Added window of size=%#lx from PCI=%#lx to CPU=%#lx\n",
+ __func__, size, wbar, tar);
+}
+
+/* BAR mapping */
+static void e500_update_pow(PPCE500PCIState *pci, int idx)
+{
+ uint64_t tar = ((uint64_t)pci->pob[idx].potar) << 12;
+ uint64_t wbar = ((uint64_t)pci->pob[idx].powbar) << 12;
+ uint64_t war = pci->pob[idx].powar;
+ uint64_t size = 2ULL << (war & PIWAR_SZ_MASK);
+ MemoryRegion *mem = &pci->pob[idx].mem;
+ MemoryRegion *address_space_mem = get_system_memory();
+ char *name;
+
+ if (memory_region_is_mapped(mem)) {
+ /* Before we modify anything, unmap and destroy the region */
+ memory_region_del_subregion(address_space_mem, mem);
+ object_unparent(OBJECT(mem));
+ }
+
+ if (!(war & PIWAR_EN)) {
+ /* Not enabled, nothing to do */
+ return;
+ }
+
+ name = g_strdup_printf("PCI Outbound Window %d", idx);
+ memory_region_init_alias(mem, OBJECT(pci), name, &pci->busmem, tar,
+ size);
+ memory_region_add_subregion(address_space_mem, wbar, mem);
+ g_free(name);
+
+ pci_debug("%s: Added window of size=%#lx from CPU=%#lx to PCI=%#lx\n",
+ __func__, size, wbar, tar);
+}
+
+static void pci_reg_write4(void *opaque, hwaddr addr,
+ uint64_t value, unsigned size)
+{
+ PPCE500PCIState *pci = opaque;
+ unsigned long win;
+ int idx;
+
+ win = addr & 0xfe0;
+
+ pci_debug("%s: value:%x -> win:%lx(addr:" TARGET_FMT_plx ")\n",
+ __func__, (unsigned)value, win, addr);
+
+ switch (win) {
+ case PPCE500_PCI_OW1:
+ case PPCE500_PCI_OW2:
+ case PPCE500_PCI_OW3:
+ case PPCE500_PCI_OW4:
+ idx = (addr >> 5) & 0x7;
+ switch (addr & 0x1F) {
+ case PCI_POTAR:
+ pci->pob[idx].potar = value;
+ e500_update_pow(pci, idx);
+ break;
+ case PCI_POTEAR:
+ pci->pob[idx].potear = value;
+ e500_update_pow(pci, idx);
+ break;
+ case PCI_POWBAR:
+ pci->pob[idx].powbar = value;
+ e500_update_pow(pci, idx);
+ break;
+ case PCI_POWAR:
+ pci->pob[idx].powar = value;
+ e500_update_pow(pci, idx);
+ break;
+ default:
+ break;
+ };
+ break;
+
+ case PPCE500_PCI_IW3:
+ case PPCE500_PCI_IW2:
+ case PPCE500_PCI_IW1:
+ idx = ((addr >> 5) & 0x3) - 1;
+ switch (addr & 0x1F) {
+ case PCI_PITAR:
+ pci->pib[idx].pitar = value;
+ e500_update_piw(pci, idx);
+ break;
+ case PCI_PIWBAR:
+ pci->pib[idx].piwbar = value;
+ e500_update_piw(pci, idx);
+ break;
+ case PCI_PIWBEAR:
+ pci->pib[idx].piwbear = value;
+ e500_update_piw(pci, idx);
+ break;
+ case PCI_PIWAR:
+ pci->pib[idx].piwar = value;
+ e500_update_piw(pci, idx);
+ break;
+ default:
+ break;
+ };
+ break;
+
+ case PPCE500_PCI_GASKET_TIMR:
+ pci->gasket_time = value;
+ break;
+
+ default:
+ break;
+ };
+}
+
+static const MemoryRegionOps e500_pci_reg_ops = {
+ .read = pci_reg_read4,
+ .write = pci_reg_write4,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static int mpc85xx_pci_map_irq(PCIDevice *pci_dev, int pin)
+{
+ int devno = pci_dev->devfn >> 3;
+ int ret;
+
+ ret = ppce500_pci_map_irq_slot(devno, pin);
+
+ pci_debug("%s: devfn %x irq %d -> %d devno:%x\n", __func__,
+ pci_dev->devfn, pin, ret, devno);
+
+ return ret;
+}
+
+static void mpc85xx_pci_set_irq(void *opaque, int pin, int level)
+{
+ PPCE500PCIState *s = opaque;
+ qemu_irq *pic = s->irq;
+
+ pci_debug("%s: PCI irq %d, level:%d\n", __func__, pin , level);
+
+ qemu_set_irq(pic[pin], level);
+}
+
+static PCIINTxRoute e500_route_intx_pin_to_irq(void *opaque, int pin)
+{
+ PCIINTxRoute route;
+ PPCE500PCIState *s = opaque;
+
+ route.mode = PCI_INTX_ENABLED;
+ route.irq = s->irq_num[pin];
+
+ pci_debug("%s: PCI irq-pin = %d, irq_num= %d\n", __func__, pin, route.irq);
+ return route;
+}
+
+static const VMStateDescription vmstate_pci_outbound = {
+ .name = "pci_outbound",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(potar, struct pci_outbound),
+ VMSTATE_UINT32(potear, struct pci_outbound),
+ VMSTATE_UINT32(powbar, struct pci_outbound),
+ VMSTATE_UINT32(powar, struct pci_outbound),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_pci_inbound = {
+ .name = "pci_inbound",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(pitar, struct pci_inbound),
+ VMSTATE_UINT32(piwbar, struct pci_inbound),
+ VMSTATE_UINT32(piwbear, struct pci_inbound),
+ VMSTATE_UINT32(piwar, struct pci_inbound),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_ppce500_pci = {
+ .name = "ppce500_pci",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT_ARRAY(pob, PPCE500PCIState, PPCE500_PCI_NR_POBS, 1,
+ vmstate_pci_outbound, struct pci_outbound),
+ VMSTATE_STRUCT_ARRAY(pib, PPCE500PCIState, PPCE500_PCI_NR_PIBS, 1,
+ vmstate_pci_inbound, struct pci_inbound),
+ VMSTATE_UINT32(gasket_time, PPCE500PCIState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+#include "exec/address-spaces.h"
+
+static void e500_pcihost_bridge_realize(PCIDevice *d, Error **errp)
+{
+ PPCE500PCIBridgeState *b = PPC_E500_PCI_BRIDGE(d);
+ PPCE500CCSRState *ccsr = CCSR(container_get(qdev_get_machine(),
+ "/e500-ccsr"));
+
+ pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
+ d->config[PCI_HEADER_TYPE] =
+ (d->config[PCI_HEADER_TYPE] & PCI_HEADER_TYPE_MULTI_FUNCTION) |
+ PCI_HEADER_TYPE_BRIDGE;
+
+ memory_region_init_alias(&b->bar0, OBJECT(ccsr), "e500-pci-bar0", &ccsr->ccsr_space,
+ 0, int128_get64(ccsr->ccsr_space.size));
+ pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &b->bar0);
+}
+
+static AddressSpace *e500_pcihost_set_iommu(PCIBus *bus, void *opaque,
+ int devfn)
+{
+ PPCE500PCIState *s = opaque;
+
+ return &s->bm_as;
+}
+
+static int e500_pcihost_initfn(SysBusDevice *dev)
+{
+ PCIHostState *h;
+ PPCE500PCIState *s;
+ PCIBus *b;
+ int i;
+
+ h = PCI_HOST_BRIDGE(dev);
+ s = PPC_E500_PCI_HOST_BRIDGE(dev);
+
+ for (i = 0; i < ARRAY_SIZE(s->irq); i++) {
+ sysbus_init_irq(dev, &s->irq[i]);
+ }
+
+ for (i = 0; i < PCI_NUM_PINS; i++) {
+ s->irq_num[i] = s->first_pin_irq + i;
+ }
+
+ memory_region_init(&s->pio, OBJECT(s), "pci-pio", PCIE500_PCI_IOLEN);
+ memory_region_init(&s->busmem, OBJECT(s), "pci bus memory", UINT64_MAX);
+
+ /* PIO lives at the bottom of our bus space */
+ memory_region_add_subregion_overlap(&s->busmem, 0, &s->pio, -2);
+
+ b = pci_register_bus(DEVICE(dev), NULL, mpc85xx_pci_set_irq,
+ mpc85xx_pci_map_irq, s, &s->busmem, &s->pio,
+ PCI_DEVFN(s->first_slot, 0), 4, TYPE_PCI_BUS);
+ h->bus = b;
+
+ /* Set up PCI view of memory */
+ memory_region_init(&s->bm, OBJECT(s), "bm-e500", UINT64_MAX);
+ memory_region_add_subregion(&s->bm, 0x0, &s->busmem);
+ address_space_init(&s->bm_as, &s->bm, "pci-bm");
+ pci_setup_iommu(b, e500_pcihost_set_iommu, s);
+
+ pci_create_simple(b, 0, "e500-host-bridge");
+
+ memory_region_init(&s->container, OBJECT(h), "pci-container", PCIE500_ALL_SIZE);
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_be_ops, h,
+ "pci-conf-idx", 4);
+ memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops, h,
+ "pci-conf-data", 4);
+ memory_region_init_io(&s->iomem, OBJECT(s), &e500_pci_reg_ops, s,
+ "pci.reg", PCIE500_REG_SIZE);
+ memory_region_add_subregion(&s->container, PCIE500_CFGADDR, &h->conf_mem);
+ memory_region_add_subregion(&s->container, PCIE500_CFGDATA, &h->data_mem);
+ memory_region_add_subregion(&s->container, PCIE500_REG_BASE, &s->iomem);
+ sysbus_init_mmio(dev, &s->container);
+ pci_bus_set_route_irq_fn(b, e500_route_intx_pin_to_irq);
+
+ return 0;
+}
+
+static void e500_host_bridge_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->realize = e500_pcihost_bridge_realize;
+ k->vendor_id = PCI_VENDOR_ID_FREESCALE;
+ k->device_id = PCI_DEVICE_ID_MPC8533E;
+ k->class_id = PCI_CLASS_PROCESSOR_POWERPC;
+ dc->desc = "Host bridge";
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo e500_host_bridge_info = {
+ .name = "e500-host-bridge",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PPCE500PCIBridgeState),
+ .class_init = e500_host_bridge_class_init,
+};
+
+static Property pcihost_properties[] = {
+ DEFINE_PROP_UINT32("first_slot", PPCE500PCIState, first_slot, 0x11),
+ DEFINE_PROP_UINT32("first_pin_irq", PPCE500PCIState, first_pin_irq, 0x1),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void e500_pcihost_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = e500_pcihost_initfn;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->props = pcihost_properties;
+ dc->vmsd = &vmstate_ppce500_pci;
+}
+
+static const TypeInfo e500_pcihost_info = {
+ .name = TYPE_PPC_E500_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(PPCE500PCIState),
+ .class_init = e500_pcihost_class_init,
+};
+
+static void e500_pci_register_types(void)
+{
+ type_register_static(&e500_pcihost_info);
+ type_register_static(&e500_host_bridge_info);
+}
+
+type_init(e500_pci_register_types)
diff --git a/src/hw/pci-host/prep.c b/src/hw/pci-host/prep.c
new file mode 100644
index 0000000..da88cb3
--- /dev/null
+++ b/src/hw/pci-host/prep.c
@@ -0,0 +1,402 @@
+/*
+ * QEMU PREP PCI host
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2011-2013 Andreas Färber
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/hw.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_bus.h"
+#include "hw/pci/pci_host.h"
+#include "hw/i386/pc.h"
+#include "hw/loader.h"
+#include "exec/address-spaces.h"
+#include "elf.h"
+
+#define TYPE_RAVEN_PCI_DEVICE "raven"
+#define TYPE_RAVEN_PCI_HOST_BRIDGE "raven-pcihost"
+
+#define RAVEN_PCI_DEVICE(obj) \
+ OBJECT_CHECK(RavenPCIState, (obj), TYPE_RAVEN_PCI_DEVICE)
+
+typedef struct RavenPCIState {
+ PCIDevice dev;
+
+ uint32_t elf_machine;
+ char *bios_name;
+ MemoryRegion bios;
+} RavenPCIState;
+
+#define RAVEN_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(PREPPCIState, (obj), TYPE_RAVEN_PCI_HOST_BRIDGE)
+
+typedef struct PRePPCIState {
+ PCIHostState parent_obj;
+
+ qemu_irq irq[PCI_NUM_PINS];
+ PCIBus pci_bus;
+ AddressSpace pci_io_as;
+ MemoryRegion pci_io;
+ MemoryRegion pci_io_non_contiguous;
+ MemoryRegion pci_memory;
+ MemoryRegion pci_intack;
+ MemoryRegion bm;
+ MemoryRegion bm_ram_alias;
+ MemoryRegion bm_pci_memory_alias;
+ AddressSpace bm_as;
+ RavenPCIState pci_dev;
+
+ int contiguous_map;
+} PREPPCIState;
+
+#define BIOS_SIZE (1024 * 1024)
+
+static inline uint32_t raven_pci_io_config(hwaddr addr)
+{
+ int i;
+
+ for (i = 0; i < 11; i++) {
+ if ((addr & (1 << (11 + i))) != 0) {
+ break;
+ }
+ }
+ return (addr & 0x7ff) | (i << 11);
+}
+
+static void raven_pci_io_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ pci_data_write(phb->bus, raven_pci_io_config(addr), val, size);
+}
+
+static uint64_t raven_pci_io_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ return pci_data_read(phb->bus, raven_pci_io_config(addr), size);
+}
+
+static const MemoryRegionOps raven_pci_io_ops = {
+ .read = raven_pci_io_read,
+ .write = raven_pci_io_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static uint64_t raven_intack_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ return pic_read_irq(isa_pic);
+}
+
+static const MemoryRegionOps raven_intack_ops = {
+ .read = raven_intack_read,
+ .valid = {
+ .max_access_size = 1,
+ },
+};
+
+static inline hwaddr raven_io_address(PREPPCIState *s,
+ hwaddr addr)
+{
+ if (s->contiguous_map == 0) {
+ /* 64 KB contiguous space for IOs */
+ addr &= 0xFFFF;
+ } else {
+ /* 8 MB non-contiguous space for IOs */
+ addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
+ }
+
+ /* FIXME: handle endianness switch */
+
+ return addr;
+}
+
+static uint64_t raven_io_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ uint8_t buf[4];
+
+ addr = raven_io_address(s, addr);
+ address_space_read(&s->pci_io_as, addr + 0x80000000,
+ MEMTXATTRS_UNSPECIFIED, buf, size);
+
+ if (size == 1) {
+ return buf[0];
+ } else if (size == 2) {
+ return lduw_le_p(buf);
+ } else if (size == 4) {
+ return ldl_le_p(buf);
+ } else {
+ g_assert_not_reached();
+ }
+}
+
+static void raven_io_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ uint8_t buf[4];
+
+ addr = raven_io_address(s, addr);
+
+ if (size == 1) {
+ buf[0] = val;
+ } else if (size == 2) {
+ stw_le_p(buf, val);
+ } else if (size == 4) {
+ stl_le_p(buf, val);
+ } else {
+ g_assert_not_reached();
+ }
+
+ address_space_write(&s->pci_io_as, addr + 0x80000000,
+ MEMTXATTRS_UNSPECIFIED, buf, size);
+}
+
+static const MemoryRegionOps raven_io_ops = {
+ .read = raven_io_read,
+ .write = raven_io_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .impl.max_access_size = 4,
+ .valid.unaligned = true,
+};
+
+static int raven_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+ return (irq_num + (pci_dev->devfn >> 3)) & 1;
+}
+
+static void raven_set_irq(void *opaque, int irq_num, int level)
+{
+ qemu_irq *pic = opaque;
+
+ qemu_set_irq(pic[irq_num] , level);
+}
+
+static AddressSpace *raven_pcihost_set_iommu(PCIBus *bus, void *opaque,
+ int devfn)
+{
+ PREPPCIState *s = opaque;
+
+ return &s->bm_as;
+}
+
+static void raven_change_gpio(void *opaque, int n, int level)
+{
+ PREPPCIState *s = opaque;
+
+ s->contiguous_map = level;
+}
+
+static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
+{
+ SysBusDevice *dev = SYS_BUS_DEVICE(d);
+ PCIHostState *h = PCI_HOST_BRIDGE(dev);
+ PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(dev);
+ MemoryRegion *address_space_mem = get_system_memory();
+ int i;
+
+ for (i = 0; i < PCI_NUM_PINS; i++) {
+ sysbus_init_irq(dev, &s->irq[i]);
+ }
+
+ qdev_init_gpio_in(d, raven_change_gpio, 1);
+
+ pci_bus_irqs(&s->pci_bus, raven_set_irq, raven_map_irq, s->irq,
+ PCI_NUM_PINS);
+
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops, s,
+ "pci-conf-idx", 4);
+ memory_region_add_subregion(&s->pci_io, 0xcf8, &h->conf_mem);
+
+ memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops, s,
+ "pci-conf-data", 4);
+ memory_region_add_subregion(&s->pci_io, 0xcfc, &h->data_mem);
+
+ memory_region_init_io(&h->mmcfg, OBJECT(s), &raven_pci_io_ops, s,
+ "pciio", 0x00400000);
+ memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
+
+ memory_region_init_io(&s->pci_intack, OBJECT(s), &raven_intack_ops, s,
+ "pci-intack", 1);
+ memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->pci_intack);
+
+ /* TODO Remove once realize propagates to child devices. */
+ object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);
+}
+
+static void raven_pcihost_initfn(Object *obj)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(obj);
+ MemoryRegion *address_space_mem = get_system_memory();
+ DeviceState *pci_dev;
+
+ memory_region_init(&s->pci_io, obj, "pci-io", 0x3f800000);
+ memory_region_init_io(&s->pci_io_non_contiguous, obj, &raven_io_ops, s,
+ "pci-io-non-contiguous", 0x00800000);
+ memory_region_init(&s->pci_memory, obj, "pci-memory", 0x3f000000);
+ address_space_init(&s->pci_io_as, &s->pci_io, "raven-io");
+
+ /* CPU address space */
+ memory_region_add_subregion(address_space_mem, 0x80000000, &s->pci_io);
+ memory_region_add_subregion_overlap(address_space_mem, 0x80000000,
+ &s->pci_io_non_contiguous, 1);
+ memory_region_add_subregion(address_space_mem, 0xc0000000, &s->pci_memory);
+ pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), NULL,
+ &s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS);
+
+ /* Bus master address space */
+ memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX);
+ memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory",
+ &s->pci_memory, 0,
+ memory_region_size(&s->pci_memory));
+ memory_region_init_alias(&s->bm_ram_alias, obj, "bm-system",
+ get_system_memory(), 0, 0x80000000);
+ memory_region_add_subregion(&s->bm, 0 , &s->bm_pci_memory_alias);
+ memory_region_add_subregion(&s->bm, 0x80000000, &s->bm_ram_alias);
+ address_space_init(&s->bm_as, &s->bm, "raven-bm");
+ pci_setup_iommu(&s->pci_bus, raven_pcihost_set_iommu, s);
+
+ h->bus = &s->pci_bus;
+
+ object_initialize(&s->pci_dev, sizeof(s->pci_dev), TYPE_RAVEN_PCI_DEVICE);
+ pci_dev = DEVICE(&s->pci_dev);
+ qdev_set_parent_bus(pci_dev, BUS(&s->pci_bus));
+ object_property_set_int(OBJECT(&s->pci_dev), PCI_DEVFN(0, 0), "addr",
+ NULL);
+ qdev_prop_set_bit(pci_dev, "multifunction", false);
+}
+
+static void raven_realize(PCIDevice *d, Error **errp)
+{
+ RavenPCIState *s = RAVEN_PCI_DEVICE(d);
+ char *filename;
+ int bios_size = -1;
+
+ d->config[0x0C] = 0x08; // cache_line_size
+ d->config[0x0D] = 0x10; // latency_timer
+ d->config[0x34] = 0x00; // capabilities_pointer
+
+ memory_region_init_ram(&s->bios, OBJECT(s), "bios", BIOS_SIZE,
+ &error_fatal);
+ memory_region_set_readonly(&s->bios, true);
+ memory_region_add_subregion(get_system_memory(), (uint32_t)(-BIOS_SIZE),
+ &s->bios);
+ vmstate_register_ram_global(&s->bios);
+ if (s->bios_name) {
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, s->bios_name);
+ if (filename) {
+ if (s->elf_machine != EM_NONE) {
+ bios_size = load_elf(filename, NULL, NULL, NULL,
+ NULL, NULL, 1, s->elf_machine, 0);
+ }
+ if (bios_size < 0) {
+ bios_size = get_image_size(filename);
+ if (bios_size > 0 && bios_size <= BIOS_SIZE) {
+ hwaddr bios_addr;
+ bios_size = (bios_size + 0xfff) & ~0xfff;
+ bios_addr = (uint32_t)(-BIOS_SIZE);
+ bios_size = load_image_targphys(filename, bios_addr,
+ bios_size);
+ }
+ }
+ }
+ if (bios_size < 0 || bios_size > BIOS_SIZE) {
+ hw_error("qemu: could not load bios image '%s'\n", s->bios_name);
+ }
+ g_free(filename);
+ }
+}
+
+static const VMStateDescription vmstate_raven = {
+ .name = "raven",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, RavenPCIState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static void raven_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = raven_realize;
+ k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
+ k->device_id = PCI_DEVICE_ID_MOTOROLA_RAVEN;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ dc->desc = "PReP Host Bridge - Motorola Raven";
+ dc->vmsd = &vmstate_raven;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo raven_info = {
+ .name = TYPE_RAVEN_PCI_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(RavenPCIState),
+ .class_init = raven_class_init,
+};
+
+static Property raven_pcihost_properties[] = {
+ DEFINE_PROP_UINT32("elf-machine", PREPPCIState, pci_dev.elf_machine,
+ EM_NONE),
+ DEFINE_PROP_STRING("bios-name", PREPPCIState, pci_dev.bios_name),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void raven_pcihost_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->realize = raven_pcihost_realizefn;
+ dc->props = raven_pcihost_properties;
+ dc->fw_name = "pci";
+}
+
+static const TypeInfo raven_pcihost_info = {
+ .name = TYPE_RAVEN_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(PREPPCIState),
+ .instance_init = raven_pcihost_initfn,
+ .class_init = raven_pcihost_class_init,
+};
+
+static void raven_register_types(void)
+{
+ type_register_static(&raven_pcihost_info);
+ type_register_static(&raven_info);
+}
+
+type_init(raven_register_types)
diff --git a/src/hw/pci-host/q35.c b/src/hw/pci-host/q35.c
new file mode 100644
index 0000000..1fb4707
--- /dev/null
+++ b/src/hw/pci-host/q35.c
@@ -0,0 +1,559 @@
+/*
+ * QEMU MCH/ICH9 PCI Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2009, 2010, 2011
+ * Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
+ *
+ * This is based on piix.c, but heavily modified.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "hw/hw.h"
+#include "hw/pci-host/q35.h"
+#include "qapi/visitor.h"
+
+/****************************************************************************
+ * Q35 host
+ */
+
+static void q35_host_realize(DeviceState *dev, Error **errp)
+{
+ PCIHostState *pci = PCI_HOST_BRIDGE(dev);
+ Q35PCIHost *s = Q35_HOST_DEVICE(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+
+ sysbus_add_io(sbd, MCH_HOST_BRIDGE_CONFIG_ADDR, &pci->conf_mem);
+ sysbus_init_ioports(sbd, MCH_HOST_BRIDGE_CONFIG_ADDR, 4);
+
+ sysbus_add_io(sbd, MCH_HOST_BRIDGE_CONFIG_DATA, &pci->data_mem);
+ sysbus_init_ioports(sbd, MCH_HOST_BRIDGE_CONFIG_DATA, 4);
+
+ pci->bus = pci_bus_new(DEVICE(s), "pcie.0",
+ s->mch.pci_address_space, s->mch.address_space_io,
+ 0, TYPE_PCIE_BUS);
+ qdev_set_parent_bus(DEVICE(&s->mch), BUS(pci->bus));
+ qdev_init_nofail(DEVICE(&s->mch));
+}
+
+static const char *q35_host_root_bus_path(PCIHostState *host_bridge,
+ PCIBus *rootbus)
+{
+ Q35PCIHost *s = Q35_HOST_DEVICE(host_bridge);
+
+ /* For backwards compat with old device paths */
+ if (s->mch.short_root_bus) {
+ return "0000";
+ }
+ return "0000:00";
+}
+
+static void q35_host_get_pci_hole_start(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ Q35PCIHost *s = Q35_HOST_DEVICE(obj);
+ uint32_t value = s->mch.pci_info.w32.begin;
+
+ visit_type_uint32(v, &value, name, errp);
+}
+
+static void q35_host_get_pci_hole_end(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ Q35PCIHost *s = Q35_HOST_DEVICE(obj);
+ uint32_t value = s->mch.pci_info.w32.end;
+
+ visit_type_uint32(v, &value, name, errp);
+}
+
+static void q35_host_get_pci_hole64_start(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Range w64;
+
+ pci_bus_get_w64_range(h->bus, &w64);
+
+ visit_type_uint64(v, &w64.begin, name, errp);
+}
+
+static void q35_host_get_pci_hole64_end(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Range w64;
+
+ pci_bus_get_w64_range(h->bus, &w64);
+
+ visit_type_uint64(v, &w64.end, name, errp);
+}
+
+static void q35_host_get_mmcfg_size(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ PCIExpressHost *e = PCIE_HOST_BRIDGE(obj);
+ uint32_t value = e->size;
+
+ visit_type_uint32(v, &value, name, errp);
+}
+
+static Property mch_props[] = {
+ DEFINE_PROP_UINT64(PCIE_HOST_MCFG_BASE, Q35PCIHost, parent_obj.base_addr,
+ MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT),
+ DEFINE_PROP_SIZE(PCI_HOST_PROP_PCI_HOLE64_SIZE, Q35PCIHost,
+ mch.pci_hole64_size, DEFAULT_PCI_HOLE64_SIZE),
+ DEFINE_PROP_UINT32("short_root_bus", Q35PCIHost, mch.short_root_bus, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void q35_host_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
+
+ hc->root_bus_path = q35_host_root_bus_path;
+ dc->realize = q35_host_realize;
+ dc->props = mch_props;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->fw_name = "pci";
+}
+
+static void q35_host_initfn(Object *obj)
+{
+ Q35PCIHost *s = Q35_HOST_DEVICE(obj);
+ PCIHostState *phb = PCI_HOST_BRIDGE(obj);
+
+ memory_region_init_io(&phb->conf_mem, obj, &pci_host_conf_le_ops, phb,
+ "pci-conf-idx", 4);
+ memory_region_init_io(&phb->data_mem, obj, &pci_host_data_le_ops, phb,
+ "pci-conf-data", 4);
+
+ object_initialize(&s->mch, sizeof(s->mch), TYPE_MCH_PCI_DEVICE);
+ object_property_add_child(OBJECT(s), "mch", OBJECT(&s->mch), NULL);
+ qdev_prop_set_uint32(DEVICE(&s->mch), "addr", PCI_DEVFN(0, 0));
+ qdev_prop_set_bit(DEVICE(&s->mch), "multifunction", false);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE_START, "int",
+ q35_host_get_pci_hole_start,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE_END, "int",
+ q35_host_get_pci_hole_end,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE64_START, "int",
+ q35_host_get_pci_hole64_start,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCI_HOST_PROP_PCI_HOLE64_END, "int",
+ q35_host_get_pci_hole64_end,
+ NULL, NULL, NULL, NULL);
+
+ object_property_add(obj, PCIE_HOST_MCFG_SIZE, "int",
+ q35_host_get_mmcfg_size,
+ NULL, NULL, NULL, NULL);
+
+ /* Leave enough space for the biggest MCFG BAR */
+ /* TODO: this matches current bios behaviour, but
+ * it's not a power of two, which means an MTRR
+ * can't cover it exactly.
+ */
+ s->mch.pci_info.w32.begin = MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT +
+ MCH_HOST_BRIDGE_PCIEXBAR_MAX;
+ s->mch.pci_info.w32.end = IO_APIC_DEFAULT_ADDRESS;
+}
+
+static const TypeInfo q35_host_info = {
+ .name = TYPE_Q35_HOST_DEVICE,
+ .parent = TYPE_PCIE_HOST_BRIDGE,
+ .instance_size = sizeof(Q35PCIHost),
+ .instance_init = q35_host_initfn,
+ .class_init = q35_host_class_init,
+};
+
+/****************************************************************************
+ * MCH D0:F0
+ */
+
+static uint64_t tseg_blackhole_read(void *ptr, hwaddr reg, unsigned size)
+{
+ return 0xffffffff;
+}
+
+static void tseg_blackhole_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned width)
+{
+ /* nothing */
+}
+
+static const MemoryRegionOps tseg_blackhole_ops = {
+ .read = tseg_blackhole_read,
+ .write = tseg_blackhole_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid.min_access_size = 1,
+ .valid.max_access_size = 4,
+ .impl.min_access_size = 4,
+ .impl.max_access_size = 4,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+/* PCIe MMCFG */
+static void mch_update_pciexbar(MCHPCIState *mch)
+{
+ PCIDevice *pci_dev = PCI_DEVICE(mch);
+ BusState *bus = qdev_get_parent_bus(DEVICE(mch));
+ PCIExpressHost *pehb = PCIE_HOST_BRIDGE(bus->parent);
+
+ uint64_t pciexbar;
+ int enable;
+ uint64_t addr;
+ uint64_t addr_mask;
+ uint32_t length;
+
+ pciexbar = pci_get_quad(pci_dev->config + MCH_HOST_BRIDGE_PCIEXBAR);
+ enable = pciexbar & MCH_HOST_BRIDGE_PCIEXBAREN;
+ addr_mask = MCH_HOST_BRIDGE_PCIEXBAR_ADMSK;
+ switch (pciexbar & MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_MASK) {
+ case MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_256M:
+ length = 256 * 1024 * 1024;
+ break;
+ case MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_128M:
+ length = 128 * 1024 * 1024;
+ addr_mask |= MCH_HOST_BRIDGE_PCIEXBAR_128ADMSK |
+ MCH_HOST_BRIDGE_PCIEXBAR_64ADMSK;
+ break;
+ case MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_64M:
+ length = 64 * 1024 * 1024;
+ addr_mask |= MCH_HOST_BRIDGE_PCIEXBAR_64ADMSK;
+ break;
+ case MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_RVD:
+ default:
+ enable = 0;
+ length = 0;
+ abort();
+ break;
+ }
+ addr = pciexbar & addr_mask;
+ pcie_host_mmcfg_update(pehb, enable, addr, length);
+ /* Leave enough space for the MCFG BAR */
+ /*
+ * TODO: this matches current bios behaviour, but it's not a power of two,
+ * which means an MTRR can't cover it exactly.
+ */
+ if (enable) {
+ mch->pci_info.w32.begin = addr + length;
+ } else {
+ mch->pci_info.w32.begin = MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT;
+ }
+}
+
+/* PAM */
+static void mch_update_pam(MCHPCIState *mch)
+{
+ PCIDevice *pd = PCI_DEVICE(mch);
+ int i;
+
+ memory_region_transaction_begin();
+ for (i = 0; i < 13; i++) {
+ pam_update(&mch->pam_regions[i], i,
+ pd->config[MCH_HOST_BRIDGE_PAM0 + ((i + 1) / 2)]);
+ }
+ memory_region_transaction_commit();
+}
+
+/* SMRAM */
+static void mch_update_smram(MCHPCIState *mch)
+{
+ PCIDevice *pd = PCI_DEVICE(mch);
+ bool h_smrame = (pd->config[MCH_HOST_BRIDGE_ESMRAMC] & MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME);
+ uint32_t tseg_size;
+
+ /* implement SMRAM.D_LCK */
+ if (pd->config[MCH_HOST_BRIDGE_SMRAM] & MCH_HOST_BRIDGE_SMRAM_D_LCK) {
+ pd->config[MCH_HOST_BRIDGE_SMRAM] &= ~MCH_HOST_BRIDGE_SMRAM_D_OPEN;
+ pd->wmask[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_WMASK_LCK;
+ pd->wmask[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_WMASK_LCK;
+ }
+
+ memory_region_transaction_begin();
+
+ if (pd->config[MCH_HOST_BRIDGE_SMRAM] & SMRAM_D_OPEN) {
+ /* Hide (!) low SMRAM if H_SMRAME = 1 */
+ memory_region_set_enabled(&mch->smram_region, h_smrame);
+ /* Show high SMRAM if H_SMRAME = 1 */
+ memory_region_set_enabled(&mch->open_high_smram, h_smrame);
+ } else {
+ /* Hide high SMRAM and low SMRAM */
+ memory_region_set_enabled(&mch->smram_region, true);
+ memory_region_set_enabled(&mch->open_high_smram, false);
+ }
+
+ if (pd->config[MCH_HOST_BRIDGE_SMRAM] & SMRAM_G_SMRAME) {
+ memory_region_set_enabled(&mch->low_smram, !h_smrame);
+ memory_region_set_enabled(&mch->high_smram, h_smrame);
+ } else {
+ memory_region_set_enabled(&mch->low_smram, false);
+ memory_region_set_enabled(&mch->high_smram, false);
+ }
+
+ if (pd->config[MCH_HOST_BRIDGE_ESMRAMC] & MCH_HOST_BRIDGE_ESMRAMC_T_EN) {
+ switch (pd->config[MCH_HOST_BRIDGE_ESMRAMC] &
+ MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK) {
+ case MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_1MB:
+ tseg_size = 1024 * 1024;
+ break;
+ case MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_2MB:
+ tseg_size = 1024 * 1024 * 2;
+ break;
+ case MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_8MB:
+ tseg_size = 1024 * 1024 * 8;
+ break;
+ default:
+ tseg_size = 0;
+ break;
+ }
+ } else {
+ tseg_size = 0;
+ }
+ memory_region_del_subregion(mch->system_memory, &mch->tseg_blackhole);
+ memory_region_set_enabled(&mch->tseg_blackhole, tseg_size);
+ memory_region_set_size(&mch->tseg_blackhole, tseg_size);
+ memory_region_add_subregion_overlap(mch->system_memory,
+ mch->below_4g_mem_size - tseg_size,
+ &mch->tseg_blackhole, 1);
+
+ memory_region_set_enabled(&mch->tseg_window, tseg_size);
+ memory_region_set_size(&mch->tseg_window, tseg_size);
+ memory_region_set_address(&mch->tseg_window,
+ mch->below_4g_mem_size - tseg_size);
+ memory_region_set_alias_offset(&mch->tseg_window,
+ mch->below_4g_mem_size - tseg_size);
+
+ memory_region_transaction_commit();
+}
+
+static void mch_write_config(PCIDevice *d,
+ uint32_t address, uint32_t val, int len)
+{
+ MCHPCIState *mch = MCH_PCI_DEVICE(d);
+
+ pci_default_write_config(d, address, val, len);
+
+ if (ranges_overlap(address, len, MCH_HOST_BRIDGE_PAM0,
+ MCH_HOST_BRIDGE_PAM_SIZE)) {
+ mch_update_pam(mch);
+ }
+
+ if (ranges_overlap(address, len, MCH_HOST_BRIDGE_PCIEXBAR,
+ MCH_HOST_BRIDGE_PCIEXBAR_SIZE)) {
+ mch_update_pciexbar(mch);
+ }
+
+ if (ranges_overlap(address, len, MCH_HOST_BRIDGE_SMRAM,
+ MCH_HOST_BRIDGE_SMRAM_SIZE)) {
+ mch_update_smram(mch);
+ }
+}
+
+static void mch_update(MCHPCIState *mch)
+{
+ mch_update_pciexbar(mch);
+ mch_update_pam(mch);
+ mch_update_smram(mch);
+}
+
+static int mch_post_load(void *opaque, int version_id)
+{
+ MCHPCIState *mch = opaque;
+ mch_update(mch);
+ return 0;
+}
+
+static const VMStateDescription vmstate_mch = {
+ .name = "mch",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = mch_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(parent_obj, MCHPCIState),
+ /* Used to be smm_enabled, which was basically always zero because
+ * SeaBIOS hardly uses SMM. SMRAM is now handled by CPU code.
+ */
+ VMSTATE_UNUSED(1),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void mch_reset(DeviceState *qdev)
+{
+ PCIDevice *d = PCI_DEVICE(qdev);
+ MCHPCIState *mch = MCH_PCI_DEVICE(d);
+
+ pci_set_quad(d->config + MCH_HOST_BRIDGE_PCIEXBAR,
+ MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT);
+
+ d->config[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_DEFAULT;
+ d->config[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_DEFAULT;
+ d->wmask[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_WMASK;
+ d->wmask[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_WMASK;
+
+ mch_update(mch);
+}
+
+static AddressSpace *q35_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
+{
+ IntelIOMMUState *s = opaque;
+ VTDAddressSpace *vtd_as;
+
+ assert(0 <= devfn && devfn <= VTD_PCI_DEVFN_MAX);
+
+ vtd_as = vtd_find_add_as(s, bus, devfn);
+ return &vtd_as->as;
+}
+
+static void mch_init_dmar(MCHPCIState *mch)
+{
+ PCIBus *pci_bus = PCI_BUS(qdev_get_parent_bus(DEVICE(mch)));
+
+ mch->iommu = INTEL_IOMMU_DEVICE(qdev_create(NULL, TYPE_INTEL_IOMMU_DEVICE));
+ object_property_add_child(OBJECT(mch), "intel-iommu",
+ OBJECT(mch->iommu), NULL);
+ qdev_init_nofail(DEVICE(mch->iommu));
+ sysbus_mmio_map(SYS_BUS_DEVICE(mch->iommu), 0, Q35_HOST_BRIDGE_IOMMU_ADDR);
+
+ pci_setup_iommu(pci_bus, q35_host_dma_iommu, mch->iommu);
+}
+
+static void mch_realize(PCIDevice *d, Error **errp)
+{
+ int i;
+ MCHPCIState *mch = MCH_PCI_DEVICE(d);
+
+ /* setup pci memory mapping */
+ pc_pci_as_mapping_init(OBJECT(mch), mch->system_memory,
+ mch->pci_address_space);
+
+ /* if *disabled* show SMRAM to all CPUs */
+ memory_region_init_alias(&mch->smram_region, OBJECT(mch), "smram-region",
+ mch->pci_address_space, 0xa0000, 0x20000);
+ memory_region_add_subregion_overlap(mch->system_memory, 0xa0000,
+ &mch->smram_region, 1);
+ memory_region_set_enabled(&mch->smram_region, true);
+
+ memory_region_init_alias(&mch->open_high_smram, OBJECT(mch), "smram-open-high",
+ mch->ram_memory, 0xa0000, 0x20000);
+ memory_region_add_subregion_overlap(mch->system_memory, 0xfeda0000,
+ &mch->open_high_smram, 1);
+ memory_region_set_enabled(&mch->open_high_smram, false);
+
+ /* smram, as seen by SMM CPUs */
+ memory_region_init(&mch->smram, OBJECT(mch), "smram", 1ull << 32);
+ memory_region_set_enabled(&mch->smram, true);
+ memory_region_init_alias(&mch->low_smram, OBJECT(mch), "smram-low",
+ mch->ram_memory, 0xa0000, 0x20000);
+ memory_region_set_enabled(&mch->low_smram, true);
+ memory_region_add_subregion(&mch->smram, 0xa0000, &mch->low_smram);
+ memory_region_init_alias(&mch->high_smram, OBJECT(mch), "smram-high",
+ mch->ram_memory, 0xa0000, 0x20000);
+ memory_region_set_enabled(&mch->high_smram, true);
+ memory_region_add_subregion(&mch->smram, 0xfeda0000, &mch->high_smram);
+
+ memory_region_init_io(&mch->tseg_blackhole, OBJECT(mch),
+ &tseg_blackhole_ops, NULL,
+ "tseg-blackhole", 0);
+ memory_region_set_enabled(&mch->tseg_blackhole, false);
+ memory_region_add_subregion_overlap(mch->system_memory,
+ mch->below_4g_mem_size,
+ &mch->tseg_blackhole, 1);
+
+ memory_region_init_alias(&mch->tseg_window, OBJECT(mch), "tseg-window",
+ mch->ram_memory, mch->below_4g_mem_size, 0);
+ memory_region_set_enabled(&mch->tseg_window, false);
+ memory_region_add_subregion(&mch->smram, mch->below_4g_mem_size,
+ &mch->tseg_window);
+ object_property_add_const_link(qdev_get_machine(), "smram",
+ OBJECT(&mch->smram), &error_abort);
+
+ init_pam(DEVICE(mch), mch->ram_memory, mch->system_memory,
+ mch->pci_address_space, &mch->pam_regions[0],
+ PAM_BIOS_BASE, PAM_BIOS_SIZE);
+ for (i = 0; i < 12; ++i) {
+ init_pam(DEVICE(mch), mch->ram_memory, mch->system_memory,
+ mch->pci_address_space, &mch->pam_regions[i+1],
+ PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE);
+ }
+ /* Intel IOMMU (VT-d) */
+ if (object_property_get_bool(qdev_get_machine(), "iommu", NULL)) {
+ mch_init_dmar(mch);
+ }
+}
+
+uint64_t mch_mcfg_base(void)
+{
+ bool ambiguous;
+ Object *o = object_resolve_path_type("", TYPE_MCH_PCI_DEVICE, &ambiguous);
+ if (!o) {
+ return 0;
+ }
+ return MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT;
+}
+
+static void mch_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = mch_realize;
+ k->config_write = mch_write_config;
+ dc->reset = mch_reset;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->desc = "Host bridge";
+ dc->vmsd = &vmstate_mch;
+ k->vendor_id = PCI_VENDOR_ID_INTEL;
+ k->device_id = PCI_DEVICE_ID_INTEL_Q35_MCH;
+ k->revision = MCH_HOST_BRIDGE_REVISION_DEFAULT;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo mch_info = {
+ .name = TYPE_MCH_PCI_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(MCHPCIState),
+ .class_init = mch_class_init,
+};
+
+static void q35_register(void)
+{
+ type_register_static(&mch_info);
+ type_register_static(&q35_host_info);
+}
+
+type_init(q35_register);
diff --git a/src/hw/pci-host/uninorth.c b/src/hw/pci-host/uninorth.c
new file mode 100644
index 0000000..215b64f
--- /dev/null
+++ b/src/hw/pci-host/uninorth.c
@@ -0,0 +1,523 @@
+/*
+ * QEMU Uninorth PCI host (for all Mac99 and newer machines)
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "hw/hw.h"
+#include "hw/ppc/mac.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_host.h"
+
+/* debug UniNorth */
+//#define DEBUG_UNIN
+
+#ifdef DEBUG_UNIN
+#define UNIN_DPRINTF(fmt, ...) \
+ do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define UNIN_DPRINTF(fmt, ...)
+#endif
+
+static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };
+
+#define TYPE_UNI_NORTH_PCI_HOST_BRIDGE "uni-north-pci-pcihost"
+#define TYPE_UNI_NORTH_AGP_HOST_BRIDGE "uni-north-agp-pcihost"
+#define TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE "uni-north-internal-pci-pcihost"
+#define TYPE_U3_AGP_HOST_BRIDGE "u3-agp-pcihost"
+
+#define UNI_NORTH_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_PCI_HOST_BRIDGE)
+#define UNI_NORTH_AGP_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_AGP_HOST_BRIDGE)
+#define UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE)
+#define U3_AGP_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(UNINState, (obj), TYPE_U3_AGP_HOST_BRIDGE)
+
+typedef struct UNINState {
+ PCIHostState parent_obj;
+
+ MemoryRegion pci_mmio;
+ MemoryRegion pci_hole;
+} UNINState;
+
+static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
+{
+ int retval;
+ int devfn = pci_dev->devfn & 0x00FFFFFF;
+
+ retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;
+
+ return retval;
+}
+
+static void pci_unin_set_irq(void *opaque, int irq_num, int level)
+{
+ qemu_irq *pic = opaque;
+
+ UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
+ unin_irq_line[irq_num], level);
+ qemu_set_irq(pic[unin_irq_line[irq_num]], level);
+}
+
+static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
+{
+ uint32_t retval;
+
+ if (reg & (1u << 31)) {
+ /* XXX OpenBIOS compatibility hack */
+ retval = reg | (addr & 3);
+ } else if (reg & 1) {
+ /* CFA1 style */
+ retval = (reg & ~7u) | (addr & 7);
+ } else {
+ uint32_t slot, func;
+
+ /* Grab CFA0 style values */
+ slot = ctz32(reg & 0xfffff800);
+ if (slot == 32) {
+ slot = -1; /* XXX: should this be 0? */
+ }
+ func = (reg >> 8) & 7;
+
+ /* ... and then convert them to x86 format */
+ /* config pointer */
+ retval = (reg & (0xff - 7)) | (addr & 7);
+ /* slot */
+ retval |= slot << 11;
+ /* fn */
+ retval |= func << 8;
+ }
+
+
+ UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
+ reg, addr, retval);
+
+ return retval;
+}
+
+static void unin_data_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned len)
+{
+ UNINState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ UNIN_DPRINTF("write addr %" TARGET_FMT_plx " len %d val %"PRIx64"\n",
+ addr, len, val);
+ pci_data_write(phb->bus,
+ unin_get_config_reg(phb->config_reg, addr),
+ val, len);
+}
+
+static uint64_t unin_data_read(void *opaque, hwaddr addr,
+ unsigned len)
+{
+ UNINState *s = opaque;
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ uint32_t val;
+
+ val = pci_data_read(phb->bus,
+ unin_get_config_reg(phb->config_reg, addr),
+ len);
+ UNIN_DPRINTF("read addr %" TARGET_FMT_plx " len %d val %x\n",
+ addr, len, val);
+ return val;
+}
+
+static const MemoryRegionOps unin_data_ops = {
+ .read = unin_data_read,
+ .write = unin_data_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static int pci_unin_main_init_device(SysBusDevice *dev)
+{
+ PCIHostState *h;
+
+ /* Use values found on a real PowerMac */
+ /* Uninorth main bus */
+ h = PCI_HOST_BRIDGE(dev);
+
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
+ dev, "pci-conf-idx", 0x1000);
+ memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
+ "pci-conf-data", 0x1000);
+ sysbus_init_mmio(dev, &h->conf_mem);
+ sysbus_init_mmio(dev, &h->data_mem);
+
+ return 0;
+}
+
+
+static int pci_u3_agp_init_device(SysBusDevice *dev)
+{
+ PCIHostState *h;
+
+ /* Uninorth U3 AGP bus */
+ h = PCI_HOST_BRIDGE(dev);
+
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
+ dev, "pci-conf-idx", 0x1000);
+ memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
+ "pci-conf-data", 0x1000);
+ sysbus_init_mmio(dev, &h->conf_mem);
+ sysbus_init_mmio(dev, &h->data_mem);
+
+ return 0;
+}
+
+static int pci_unin_agp_init_device(SysBusDevice *dev)
+{
+ PCIHostState *h;
+
+ /* Uninorth AGP bus */
+ h = PCI_HOST_BRIDGE(dev);
+
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
+ dev, "pci-conf-idx", 0x1000);
+ memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
+ dev, "pci-conf-data", 0x1000);
+ sysbus_init_mmio(dev, &h->conf_mem);
+ sysbus_init_mmio(dev, &h->data_mem);
+ return 0;
+}
+
+static int pci_unin_internal_init_device(SysBusDevice *dev)
+{
+ PCIHostState *h;
+
+ /* Uninorth internal bus */
+ h = PCI_HOST_BRIDGE(dev);
+
+ memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
+ dev, "pci-conf-idx", 0x1000);
+ memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
+ dev, "pci-conf-data", 0x1000);
+ sysbus_init_mmio(dev, &h->conf_mem);
+ sysbus_init_mmio(dev, &h->data_mem);
+ return 0;
+}
+
+PCIBus *pci_pmac_init(qemu_irq *pic,
+ MemoryRegion *address_space_mem,
+ MemoryRegion *address_space_io)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+ PCIHostState *h;
+ UNINState *d;
+
+ /* Use values found on a real PowerMac */
+ /* Uninorth main bus */
+ dev = qdev_create(NULL, TYPE_UNI_NORTH_PCI_HOST_BRIDGE);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ h = PCI_HOST_BRIDGE(s);
+ d = UNI_NORTH_PCI_HOST_BRIDGE(dev);
+ memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
+ memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
+ 0x80000000ULL, 0x10000000ULL);
+ memory_region_add_subregion(address_space_mem, 0x80000000ULL,
+ &d->pci_hole);
+
+ h->bus = pci_register_bus(dev, NULL,
+ pci_unin_set_irq, pci_unin_map_irq,
+ pic,
+ &d->pci_mmio,
+ address_space_io,
+ PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
+
+#if 0
+ pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north");
+#endif
+
+ sysbus_mmio_map(s, 0, 0xf2800000);
+ sysbus_mmio_map(s, 1, 0xf2c00000);
+
+ /* DEC 21154 bridge */
+#if 0
+ /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
+ pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154");
+#endif
+
+ /* Uninorth AGP bus */
+ pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp");
+ dev = qdev_create(NULL, TYPE_UNI_NORTH_AGP_HOST_BRIDGE);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(s, 0, 0xf0800000);
+ sysbus_mmio_map(s, 1, 0xf0c00000);
+
+ /* Uninorth internal bus */
+#if 0
+ /* XXX: not needed for now */
+ pci_create_simple(h->bus, PCI_DEVFN(14, 0),
+ "uni-north-internal-pci");
+ dev = qdev_create(NULL, TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(s, 0, 0xf4800000);
+ sysbus_mmio_map(s, 1, 0xf4c00000);
+#endif
+
+ return h->bus;
+}
+
+PCIBus *pci_pmac_u3_init(qemu_irq *pic,
+ MemoryRegion *address_space_mem,
+ MemoryRegion *address_space_io)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+ PCIHostState *h;
+ UNINState *d;
+
+ /* Uninorth AGP bus */
+
+ dev = qdev_create(NULL, TYPE_U3_AGP_HOST_BRIDGE);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+ h = PCI_HOST_BRIDGE(dev);
+ d = U3_AGP_HOST_BRIDGE(dev);
+
+ memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
+ memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
+ 0x80000000ULL, 0x70000000ULL);
+ memory_region_add_subregion(address_space_mem, 0x80000000ULL,
+ &d->pci_hole);
+
+ h->bus = pci_register_bus(dev, NULL,
+ pci_unin_set_irq, pci_unin_map_irq,
+ pic,
+ &d->pci_mmio,
+ address_space_io,
+ PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
+
+ sysbus_mmio_map(s, 0, 0xf0800000);
+ sysbus_mmio_map(s, 1, 0xf0c00000);
+
+ pci_create_simple(h->bus, 11 << 3, "u3-agp");
+
+ return h->bus;
+}
+
+static void unin_main_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ d->config[0x0C] = 0x08; // cache_line_size
+ d->config[0x0D] = 0x10; // latency_timer
+ d->config[0x34] = 0x00; // capabilities_pointer
+}
+
+static void unin_agp_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ d->config[0x0C] = 0x08; // cache_line_size
+ d->config[0x0D] = 0x10; // latency_timer
+ // d->config[0x34] = 0x80; // capabilities_pointer
+}
+
+static void u3_agp_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ /* cache line size */
+ d->config[0x0C] = 0x08;
+ /* latency timer */
+ d->config[0x0D] = 0x10;
+}
+
+static void unin_internal_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ d->config[0x0C] = 0x08; // cache_line_size
+ d->config[0x0D] = 0x10; // latency_timer
+ d->config[0x34] = 0x00; // capabilities_pointer
+}
+
+static void unin_main_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = unin_main_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_APPLE;
+ k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo unin_main_pci_host_info = {
+ .name = "uni-north-pci",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = unin_main_pci_host_class_init,
+};
+
+static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = u3_agp_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_APPLE;
+ k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo u3_agp_pci_host_info = {
+ .name = "u3-agp",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = u3_agp_pci_host_class_init,
+};
+
+static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = unin_agp_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_APPLE;
+ k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo unin_agp_pci_host_info = {
+ .name = "uni-north-agp",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = unin_agp_pci_host_class_init,
+};
+
+static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = unin_internal_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_APPLE;
+ k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo unin_internal_pci_host_info = {
+ .name = "uni-north-internal-pci",
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = unin_internal_pci_host_class_init,
+};
+
+static void pci_unin_main_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ sbc->init = pci_unin_main_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo pci_unin_main_info = {
+ .name = TYPE_UNI_NORTH_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(UNINState),
+ .class_init = pci_unin_main_class_init,
+};
+
+static void pci_u3_agp_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ sbc->init = pci_u3_agp_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo pci_u3_agp_info = {
+ .name = TYPE_U3_AGP_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(UNINState),
+ .class_init = pci_u3_agp_class_init,
+};
+
+static void pci_unin_agp_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ sbc->init = pci_unin_agp_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo pci_unin_agp_info = {
+ .name = TYPE_UNI_NORTH_AGP_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(UNINState),
+ .class_init = pci_unin_agp_class_init,
+};
+
+static void pci_unin_internal_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ sbc->init = pci_unin_internal_init_device;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo pci_unin_internal_info = {
+ .name = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(UNINState),
+ .class_init = pci_unin_internal_class_init,
+};
+
+static void unin_register_types(void)
+{
+ type_register_static(&unin_main_pci_host_info);
+ type_register_static(&u3_agp_pci_host_info);
+ type_register_static(&unin_agp_pci_host_info);
+ type_register_static(&unin_internal_pci_host_info);
+
+ type_register_static(&pci_unin_main_info);
+ type_register_static(&pci_u3_agp_info);
+ type_register_static(&pci_unin_agp_info);
+ type_register_static(&pci_unin_internal_info);
+}
+
+type_init(unin_register_types)
diff --git a/src/hw/pci-host/versatile.c b/src/hw/pci-host/versatile.c
new file mode 100644
index 0000000..7172b90
--- /dev/null
+++ b/src/hw/pci-host/versatile.c
@@ -0,0 +1,548 @@
+/*
+ * ARM Versatile/PB PCI host controller
+ *
+ * Copyright (c) 2006-2009 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licensed under the LGPL.
+ */
+
+#include "hw/sysbus.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_bus.h"
+#include "hw/pci/pci_host.h"
+#include "exec/address-spaces.h"
+
+/* Old and buggy versions of QEMU used the wrong mapping from
+ * PCI IRQs to system interrupt lines. Unfortunately the Linux
+ * kernel also had the corresponding bug in setting up interrupts
+ * (so older kernels work on QEMU and not on real hardware).
+ * We automatically detect these broken kernels and flip back
+ * to the broken irq mapping by spotting guest writes to the
+ * PCI_INTERRUPT_LINE register to see where the guest thinks
+ * interrupts are going to be routed. So we start in state
+ * ASSUME_OK on reset, and transition to either BROKEN or
+ * FORCE_OK at the first write to an INTERRUPT_LINE register for
+ * a slot where broken and correct interrupt mapping would differ.
+ * Once in either BROKEN or FORCE_OK we never transition again;
+ * this allows a newer kernel to use the INTERRUPT_LINE
+ * registers arbitrarily once it has indicated that it isn't
+ * broken in its init code somewhere.
+ *
+ * Unfortunately we have to cope with multiple different
+ * variants on the broken kernel behaviour:
+ * phase I (before kernel commit 1bc39ac5d) kernels assume old
+ * QEMU behaviour, so they use IRQ 27 for all slots
+ * phase II (1bc39ac5d and later, but before e3e92a7be6) kernels
+ * swizzle IRQs between slots, but do it wrongly, so they
+ * work only for every fourth PCI card, and only if (like old
+ * QEMU) the PCI host device is at slot 0 rather than where
+ * the h/w actually puts it
+ * phase III (e3e92a7be6 and later) kernels still swizzle IRQs between
+ * slots wrongly, but add a fixed offset of 64 to everything
+ * they write to PCI_INTERRUPT_LINE.
+ *
+ * We live in hope of a mythical phase IV kernel which might
+ * actually behave in ways that work on the hardware. Such a
+ * kernel should probably start off by writing some value neither
+ * 27 nor 91 to slot zero's PCI_INTERRUPT_LINE register to
+ * disable the autodetection. After that it can do what it likes.
+ *
+ * Slot % 4 | hw | I | II | III
+ * -------------------------------
+ * 0 | 29 | 27 | 27 | 91
+ * 1 | 30 | 27 | 28 | 92
+ * 2 | 27 | 27 | 29 | 93
+ * 3 | 28 | 27 | 30 | 94
+ *
+ * Since our autodetection is not perfect we also provide a
+ * property so the user can make us start in BROKEN or FORCE_OK
+ * on reset if they know they have a bad or good kernel.
+ */
+enum {
+ PCI_VPB_IRQMAP_ASSUME_OK,
+ PCI_VPB_IRQMAP_BROKEN,
+ PCI_VPB_IRQMAP_FORCE_OK,
+};
+
+typedef struct {
+ PCIHostState parent_obj;
+
+ qemu_irq irq[4];
+ MemoryRegion controlregs;
+ MemoryRegion mem_config;
+ MemoryRegion mem_config2;
+ /* Containers representing the PCI address spaces */
+ MemoryRegion pci_io_space;
+ MemoryRegion pci_mem_space;
+ /* Alias regions into PCI address spaces which we expose as sysbus regions.
+ * The offsets into pci_mem_space are controlled by the imap registers.
+ */
+ MemoryRegion pci_io_window;
+ MemoryRegion pci_mem_window[3];
+ PCIBus pci_bus;
+ PCIDevice pci_dev;
+
+ /* Constant for life of device: */
+ int realview;
+ uint32_t mem_win_size[3];
+ uint8_t irq_mapping_prop;
+
+ /* Variable state: */
+ uint32_t imap[3];
+ uint32_t smap[3];
+ uint32_t selfid;
+ uint32_t flags;
+ uint8_t irq_mapping;
+} PCIVPBState;
+
+static void pci_vpb_update_window(PCIVPBState *s, int i)
+{
+ /* Adjust the offset of the alias region we use for
+ * the memory window i to account for a change in the
+ * value of the corresponding IMAP register.
+ * Note that the semantics of the IMAP register differ
+ * for realview and versatile variants of the controller.
+ */
+ hwaddr offset;
+ if (s->realview) {
+ /* Top bits of register (masked according to window size) provide
+ * top bits of PCI address.
+ */
+ offset = s->imap[i] & ~(s->mem_win_size[i] - 1);
+ } else {
+ /* Bottom 4 bits of register provide top 4 bits of PCI address */
+ offset = s->imap[i] << 28;
+ }
+ memory_region_set_alias_offset(&s->pci_mem_window[i], offset);
+}
+
+static void pci_vpb_update_all_windows(PCIVPBState *s)
+{
+ /* Update all alias windows based on the current register state */
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ pci_vpb_update_window(s, i);
+ }
+}
+
+static int pci_vpb_post_load(void *opaque, int version_id)
+{
+ PCIVPBState *s = opaque;
+ pci_vpb_update_all_windows(s);
+ return 0;
+}
+
+static const VMStateDescription pci_vpb_vmstate = {
+ .name = "versatile-pci",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = pci_vpb_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(imap, PCIVPBState, 3),
+ VMSTATE_UINT32_ARRAY(smap, PCIVPBState, 3),
+ VMSTATE_UINT32(selfid, PCIVPBState),
+ VMSTATE_UINT32(flags, PCIVPBState),
+ VMSTATE_UINT8(irq_mapping, PCIVPBState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+#define TYPE_VERSATILE_PCI "versatile_pci"
+#define PCI_VPB(obj) \
+ OBJECT_CHECK(PCIVPBState, (obj), TYPE_VERSATILE_PCI)
+
+#define TYPE_VERSATILE_PCI_HOST "versatile_pci_host"
+#define PCI_VPB_HOST(obj) \
+ OBJECT_CHECK(PCIDevice, (obj), TYPE_VERSATILE_PCIHOST)
+
+typedef enum {
+ PCI_IMAP0 = 0x0,
+ PCI_IMAP1 = 0x4,
+ PCI_IMAP2 = 0x8,
+ PCI_SELFID = 0xc,
+ PCI_FLAGS = 0x10,
+ PCI_SMAP0 = 0x14,
+ PCI_SMAP1 = 0x18,
+ PCI_SMAP2 = 0x1c,
+} PCIVPBControlRegs;
+
+static void pci_vpb_reg_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIVPBState *s = opaque;
+
+ switch (addr) {
+ case PCI_IMAP0:
+ case PCI_IMAP1:
+ case PCI_IMAP2:
+ {
+ int win = (addr - PCI_IMAP0) >> 2;
+ s->imap[win] = val;
+ pci_vpb_update_window(s, win);
+ break;
+ }
+ case PCI_SELFID:
+ s->selfid = val;
+ break;
+ case PCI_FLAGS:
+ s->flags = val;
+ break;
+ case PCI_SMAP0:
+ case PCI_SMAP1:
+ case PCI_SMAP2:
+ {
+ int win = (addr - PCI_SMAP0) >> 2;
+ s->smap[win] = val;
+ break;
+ }
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "pci_vpb_reg_write: Bad offset %x\n", (int)addr);
+ break;
+ }
+}
+
+static uint64_t pci_vpb_reg_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ PCIVPBState *s = opaque;
+
+ switch (addr) {
+ case PCI_IMAP0:
+ case PCI_IMAP1:
+ case PCI_IMAP2:
+ {
+ int win = (addr - PCI_IMAP0) >> 2;
+ return s->imap[win];
+ }
+ case PCI_SELFID:
+ return s->selfid;
+ case PCI_FLAGS:
+ return s->flags;
+ case PCI_SMAP0:
+ case PCI_SMAP1:
+ case PCI_SMAP2:
+ {
+ int win = (addr - PCI_SMAP0) >> 2;
+ return s->smap[win];
+ }
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "pci_vpb_reg_read: Bad offset %x\n", (int)addr);
+ return 0;
+ }
+}
+
+static const MemoryRegionOps pci_vpb_reg_ops = {
+ .read = pci_vpb_reg_read,
+ .write = pci_vpb_reg_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static int pci_vpb_broken_irq(int slot, int irq)
+{
+ /* Determine whether this IRQ value for this slot represents a
+ * known broken Linux kernel behaviour for this slot.
+ * Return one of the PCI_VPB_IRQMAP_ constants:
+ * BROKEN : if this definitely looks like a broken kernel
+ * FORCE_OK : if this definitely looks good
+ * ASSUME_OK : if we can't tell
+ */
+ slot %= PCI_NUM_PINS;
+
+ if (irq == 27) {
+ if (slot == 2) {
+ /* Might be a Phase I kernel, or might be a fixed kernel,
+ * since slot 2 is where we expect this IRQ.
+ */
+ return PCI_VPB_IRQMAP_ASSUME_OK;
+ }
+ /* Phase I kernel */
+ return PCI_VPB_IRQMAP_BROKEN;
+ }
+ if (irq == slot + 27) {
+ /* Phase II kernel */
+ return PCI_VPB_IRQMAP_BROKEN;
+ }
+ if (irq == slot + 27 + 64) {
+ /* Phase III kernel */
+ return PCI_VPB_IRQMAP_BROKEN;
+ }
+ /* Anything else must be a fixed kernel, possibly using an
+ * arbitrary irq map.
+ */
+ return PCI_VPB_IRQMAP_FORCE_OK;
+}
+
+static void pci_vpb_config_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PCIVPBState *s = opaque;
+ if (!s->realview && (addr & 0xff) == PCI_INTERRUPT_LINE
+ && s->irq_mapping == PCI_VPB_IRQMAP_ASSUME_OK) {
+ uint8_t devfn = addr >> 8;
+ s->irq_mapping = pci_vpb_broken_irq(PCI_SLOT(devfn), val);
+ }
+ pci_data_write(&s->pci_bus, addr, val, size);
+}
+
+static uint64_t pci_vpb_config_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ PCIVPBState *s = opaque;
+ uint32_t val;
+ val = pci_data_read(&s->pci_bus, addr, size);
+ return val;
+}
+
+static const MemoryRegionOps pci_vpb_config_ops = {
+ .read = pci_vpb_config_read,
+ .write = pci_vpb_config_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int pci_vpb_map_irq(PCIDevice *d, int irq_num)
+{
+ PCIVPBState *s = container_of(d->bus, PCIVPBState, pci_bus);
+
+ if (s->irq_mapping == PCI_VPB_IRQMAP_BROKEN) {
+ /* Legacy broken IRQ mapping for compatibility with old and
+ * buggy Linux guests
+ */
+ return irq_num;
+ }
+
+ /* Slot to IRQ mapping for RealView Platform Baseboard 926 backplane
+ * name slot IntA IntB IntC IntD
+ * A 31 IRQ28 IRQ29 IRQ30 IRQ27
+ * B 30 IRQ27 IRQ28 IRQ29 IRQ30
+ * C 29 IRQ30 IRQ27 IRQ28 IRQ29
+ * Slot C is for the host bridge; A and B the peripherals.
+ * Our output irqs 0..3 correspond to the baseboard's 27..30.
+ *
+ * This mapping function takes account of an oddity in the PB926
+ * board wiring, where the FPGA's P_nINTA input is connected to
+ * the INTB connection on the board PCI edge connector, P_nINTB
+ * is connected to INTC, and so on, so everything is one number
+ * further round from where you might expect.
+ */
+ return pci_swizzle_map_irq_fn(d, irq_num + 2);
+}
+
+static int pci_vpb_rv_map_irq(PCIDevice *d, int irq_num)
+{
+ /* Slot to IRQ mapping for RealView EB and PB1176 backplane
+ * name slot IntA IntB IntC IntD
+ * A 31 IRQ50 IRQ51 IRQ48 IRQ49
+ * B 30 IRQ49 IRQ50 IRQ51 IRQ48
+ * C 29 IRQ48 IRQ49 IRQ50 IRQ51
+ * Slot C is for the host bridge; A and B the peripherals.
+ * Our output irqs 0..3 correspond to the baseboard's 48..51.
+ *
+ * The PB1176 and EB boards don't have the PB926 wiring oddity
+ * described above; P_nINTA connects to INTA, P_nINTB to INTB
+ * and so on, which is why this mapping function is different.
+ */
+ return pci_swizzle_map_irq_fn(d, irq_num + 3);
+}
+
+static void pci_vpb_set_irq(void *opaque, int irq_num, int level)
+{
+ qemu_irq *pic = opaque;
+
+ qemu_set_irq(pic[irq_num], level);
+}
+
+static void pci_vpb_reset(DeviceState *d)
+{
+ PCIVPBState *s = PCI_VPB(d);
+
+ s->imap[0] = 0;
+ s->imap[1] = 0;
+ s->imap[2] = 0;
+ s->smap[0] = 0;
+ s->smap[1] = 0;
+ s->smap[2] = 0;
+ s->selfid = 0;
+ s->flags = 0;
+ s->irq_mapping = s->irq_mapping_prop;
+
+ pci_vpb_update_all_windows(s);
+}
+
+static void pci_vpb_init(Object *obj)
+{
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ PCIVPBState *s = PCI_VPB(obj);
+
+ memory_region_init(&s->pci_io_space, OBJECT(s), "pci_io", 1ULL << 32);
+ memory_region_init(&s->pci_mem_space, OBJECT(s), "pci_mem", 1ULL << 32);
+
+ pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), "pci",
+ &s->pci_mem_space, &s->pci_io_space,
+ PCI_DEVFN(11, 0), TYPE_PCI_BUS);
+ h->bus = &s->pci_bus;
+
+ object_initialize(&s->pci_dev, sizeof(s->pci_dev), TYPE_VERSATILE_PCI_HOST);
+ qdev_set_parent_bus(DEVICE(&s->pci_dev), BUS(&s->pci_bus));
+
+ /* Window sizes for VersatilePB; realview_pci's init will override */
+ s->mem_win_size[0] = 0x0c000000;
+ s->mem_win_size[1] = 0x10000000;
+ s->mem_win_size[2] = 0x10000000;
+}
+
+static void pci_vpb_realize(DeviceState *dev, Error **errp)
+{
+ PCIVPBState *s = PCI_VPB(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+ pci_map_irq_fn mapfn;
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ sysbus_init_irq(sbd, &s->irq[i]);
+ }
+
+ if (s->realview) {
+ mapfn = pci_vpb_rv_map_irq;
+ } else {
+ mapfn = pci_vpb_map_irq;
+ }
+
+ pci_bus_irqs(&s->pci_bus, pci_vpb_set_irq, mapfn, s->irq, 4);
+
+ /* Our memory regions are:
+ * 0 : our control registers
+ * 1 : PCI self config window
+ * 2 : PCI config window
+ * 3 : PCI IO window
+ * 4..6 : PCI memory windows
+ */
+ memory_region_init_io(&s->controlregs, OBJECT(s), &pci_vpb_reg_ops, s,
+ "pci-vpb-regs", 0x1000);
+ sysbus_init_mmio(sbd, &s->controlregs);
+ memory_region_init_io(&s->mem_config, OBJECT(s), &pci_vpb_config_ops, s,
+ "pci-vpb-selfconfig", 0x1000000);
+ sysbus_init_mmio(sbd, &s->mem_config);
+ memory_region_init_io(&s->mem_config2, OBJECT(s), &pci_vpb_config_ops, s,
+ "pci-vpb-config", 0x1000000);
+ sysbus_init_mmio(sbd, &s->mem_config2);
+
+ /* The window into I/O space is always into a fixed base address;
+ * its size is the same for both realview and versatile.
+ */
+ memory_region_init_alias(&s->pci_io_window, OBJECT(s), "pci-vbp-io-window",
+ &s->pci_io_space, 0, 0x100000);
+
+ sysbus_init_mmio(sbd, &s->pci_io_space);
+
+ /* Create the alias regions corresponding to our three windows onto
+ * PCI memory space. The sizes vary from board to board; the base
+ * offsets are guest controllable via the IMAP registers.
+ */
+ for (i = 0; i < 3; i++) {
+ memory_region_init_alias(&s->pci_mem_window[i], OBJECT(s), "pci-vbp-window",
+ &s->pci_mem_space, 0, s->mem_win_size[i]);
+ sysbus_init_mmio(sbd, &s->pci_mem_window[i]);
+ }
+
+ /* TODO Remove once realize propagates to child devices. */
+ object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);
+}
+
+static void versatile_pci_host_realize(PCIDevice *d, Error **errp)
+{
+ pci_set_word(d->config + PCI_STATUS,
+ PCI_STATUS_66MHZ | PCI_STATUS_DEVSEL_MEDIUM);
+ pci_set_byte(d->config + PCI_LATENCY_TIMER, 0x10);
+}
+
+static void versatile_pci_host_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = versatile_pci_host_realize;
+ k->vendor_id = PCI_VENDOR_ID_XILINX;
+ k->device_id = PCI_DEVICE_ID_XILINX_XC2VP30;
+ k->class_id = PCI_CLASS_PROCESSOR_CO;
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
+}
+
+static const TypeInfo versatile_pci_host_info = {
+ .name = TYPE_VERSATILE_PCI_HOST,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PCIDevice),
+ .class_init = versatile_pci_host_class_init,
+};
+
+static Property pci_vpb_properties[] = {
+ DEFINE_PROP_UINT8("broken-irq-mapping", PCIVPBState, irq_mapping_prop,
+ PCI_VPB_IRQMAP_ASSUME_OK),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void pci_vpb_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = pci_vpb_realize;
+ dc->reset = pci_vpb_reset;
+ dc->vmsd = &pci_vpb_vmstate;
+ dc->props = pci_vpb_properties;
+ /* Reason: object_unref() hangs */
+ dc->cannot_destroy_with_object_finalize_yet = true;
+}
+
+static const TypeInfo pci_vpb_info = {
+ .name = TYPE_VERSATILE_PCI,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(PCIVPBState),
+ .instance_init = pci_vpb_init,
+ .class_init = pci_vpb_class_init,
+};
+
+static void pci_realview_init(Object *obj)
+{
+ PCIVPBState *s = PCI_VPB(obj);
+
+ s->realview = 1;
+ /* The PCI window sizes are different on Realview boards */
+ s->mem_win_size[0] = 0x01000000;
+ s->mem_win_size[1] = 0x04000000;
+ s->mem_win_size[2] = 0x08000000;
+}
+
+static void pci_realview_class_init(ObjectClass *class, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(class);
+
+ /* Reason: object_unref() hangs */
+ dc->cannot_destroy_with_object_finalize_yet = true;
+}
+
+static const TypeInfo pci_realview_info = {
+ .name = "realview_pci",
+ .parent = TYPE_VERSATILE_PCI,
+ .instance_init = pci_realview_init,
+ .class_init = pci_realview_class_init,
+};
+
+static void versatile_pci_register_types(void)
+{
+ type_register_static(&pci_vpb_info);
+ type_register_static(&pci_realview_info);
+ type_register_static(&versatile_pci_host_info);
+}
+
+type_init(versatile_pci_register_types)
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