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authorPaolo Bonzini <pbonzini@redhat.com>2016-01-26 16:28:36 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2016-01-26 16:28:36 +0100
commitb8bc3bde9c8c90500c648627d53f846642ff8639 (patch)
tree0c3ed82848a25948206556bc699a10d30bd18d07 /arch/powerpc
parent171b5682aa8597174e80ec4128c87538103f2213 (diff)
parent9abc2a08a7d665b02bdde974fd6c44aae86e923e (diff)
downloadop-kernel-dev-b8bc3bde9c8c90500c648627d53f846642ff8639.zip
op-kernel-dev-b8bc3bde9c8c90500c648627d53f846642ff8639.tar.gz
Merge tag 'kvm-s390-master-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Fixes for kvm/master (targeting 4.5) 1. Fallout of some bigger floating point/vector rework in s390 - memory leak -> stable 4.3+ - memory overwrite -> stable 4.4+ 2. enable KVM-VFIO for s390
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/Kconfig.debug12
-rw-r--r--arch/powerpc/include/asm/barrier.h2
-rw-r--r--arch/powerpc/include/asm/hvcall.h20
-rw-r--r--arch/powerpc/include/asm/icswx.h1
-rw-r--r--arch/powerpc/include/asm/systbl.h24
-rw-r--r--arch/powerpc/include/asm/uaccess.h15
-rw-r--r--arch/powerpc/include/uapi/asm/socket.h3
-rw-r--r--arch/powerpc/include/uapi/asm/unistd.h12
-rw-r--r--arch/powerpc/kernel/module_32.c6
-rw-r--r--arch/powerpc/kernel/nvram_64.c19
-rw-r--r--arch/powerpc/kvm/book3s_hv.c6
-rw-r--r--arch/powerpc/net/bpf_jit_comp.c13
-rw-r--r--arch/powerpc/platforms/82xx/ep8248e.c10
-rw-r--r--arch/powerpc/platforms/pasemi/gpio_mdio.c3
-rw-r--r--arch/powerpc/platforms/powernv/opal-irqchip.c14
-rw-r--r--arch/powerpc/platforms/powernv/opal.c2
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c28
-rw-r--r--arch/powerpc/sysdev/fsl_pci.h9
19 files changed, 94 insertions, 106 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index db49e0d..85eabc4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -159,6 +159,7 @@ config PPC
select EDAC_SUPPORT
select EDAC_ATOMIC_SCRUB
select ARCH_HAS_DMA_SET_COHERENT_MASK
+ select ARCH_HAS_DEVMEM_IS_ALLOWED
select HAVE_ARCH_SECCOMP_FILTER
config GENERIC_CSUM
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 3a510f4..a0e44a9 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -335,18 +335,6 @@ config PPC_EARLY_DEBUG_CPM_ADDR
platform probing is done, all platforms selected must
share the same address.
-config STRICT_DEVMEM
- def_bool y
- prompt "Filter access to /dev/mem"
- help
- This option restricts access to /dev/mem. If this option is
- disabled, you allow userspace access to all memory, including
- kernel and userspace memory. Accidental memory access is likely
- to be disastrous.
- Memory access is required for experts who want to debug the kernel.
-
- If you are unsure, say Y.
-
config FAIL_IOMMU
bool "Fault-injection capability for IOMMU"
depends on FAULT_INJECTION
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
index 0eca6ef..a7af5fb 100644
--- a/arch/powerpc/include/asm/barrier.h
+++ b/arch/powerpc/include/asm/barrier.h
@@ -34,7 +34,7 @@
#define rmb() __asm__ __volatile__ ("sync" : : : "memory")
#define wmb() __asm__ __volatile__ ("sync" : : : "memory")
-#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); mb(); } while (0)
+#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); smp_mb(); } while (0)
#ifdef __SUBARCH_HAS_LWSYNC
# define SMPWMB LWSYNC
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 85bc8c0..e3b54dd 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -258,11 +258,16 @@
#define H_DEL_CONN 0x288
#define H_JOIN 0x298
#define H_VASI_STATE 0x2A4
+#define H_VIOCTL 0x2A8
#define H_ENABLE_CRQ 0x2B0
#define H_GET_EM_PARMS 0x2B8
#define H_SET_MPP 0x2D0
#define H_GET_MPP 0x2D4
+#define H_REG_SUB_CRQ 0x2DC
#define H_HOME_NODE_ASSOCIATIVITY 0x2EC
+#define H_FREE_SUB_CRQ 0x2E0
+#define H_SEND_SUB_CRQ 0x2E4
+#define H_SEND_SUB_CRQ_INDIRECT 0x2E8
#define H_BEST_ENERGY 0x2F4
#define H_XIRR_X 0x2FC
#define H_RANDOM 0x300
@@ -271,6 +276,21 @@
#define H_SET_MODE 0x31C
#define MAX_HCALL_OPCODE H_SET_MODE
+/* H_VIOCTL functions */
+#define H_GET_VIOA_DUMP_SIZE 0x01
+#define H_GET_VIOA_DUMP 0x02
+#define H_GET_ILLAN_NUM_VLAN_IDS 0x03
+#define H_GET_ILLAN_VLAN_ID_LIST 0x04
+#define H_GET_ILLAN_SWITCH_ID 0x05
+#define H_DISABLE_MIGRATION 0x06
+#define H_ENABLE_MIGRATION 0x07
+#define H_GET_PARTNER_INFO 0x08
+#define H_GET_PARTNER_WWPN_LIST 0x09
+#define H_DISABLE_ALL_VIO_INTS 0x0A
+#define H_DISABLE_VIO_INTERRUPT 0x0B
+#define H_ENABLE_VIO_INTERRUPT 0x0C
+
+
/* Platform specific hcalls, used by KVM */
#define H_RTAS 0xf000
diff --git a/arch/powerpc/include/asm/icswx.h b/arch/powerpc/include/asm/icswx.h
index 9f8402b..27e588f 100644
--- a/arch/powerpc/include/asm/icswx.h
+++ b/arch/powerpc/include/asm/icswx.h
@@ -164,6 +164,7 @@ struct coprocessor_request_block {
#define ICSWX_INITIATED (0x8)
#define ICSWX_BUSY (0x4)
#define ICSWX_REJECTED (0x2)
+#define ICSWX_XERS0 (0x1) /* undefined or set from XERSO. */
static inline int icswx(__be32 ccw, struct coprocessor_request_block *crb)
{
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index f2b0b1b..5654ece 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -370,16 +370,16 @@ COMPAT_SYS(execveat)
PPC64ONLY(switch_endian)
SYSCALL_SPU(userfaultfd)
SYSCALL_SPU(membarrier)
-SYSCALL(semop)
-SYSCALL(semget)
-COMPAT_SYS(semctl)
-COMPAT_SYS(semtimedop)
-COMPAT_SYS(msgsnd)
-COMPAT_SYS(msgrcv)
-SYSCALL(msgget)
-COMPAT_SYS(msgctl)
-COMPAT_SYS(shmat)
-SYSCALL(shmdt)
-SYSCALL(shmget)
-COMPAT_SYS(shmctl)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
SYSCALL(mlock2)
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 2a8ebae..b7c20f0 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -274,21 +274,6 @@ do { \
__gu_err; \
})
-#ifndef __powerpc64__
-#define __get_user64_nocheck(x, ptr, size) \
-({ \
- long __gu_err; \
- long long __gu_val; \
- __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
- __chk_user_ptr(ptr); \
- if (!is_kernel_addr((unsigned long)__gu_addr)) \
- might_fault(); \
- __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
- (x) = (__force __typeof__(*(ptr)))__gu_val; \
- __gu_err; \
-})
-#endif /* __powerpc64__ */
-
#define __get_user_check(x, ptr, size) \
({ \
long __gu_err = -EFAULT; \
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index c046666..dd54f28 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -92,4 +92,7 @@
#define SO_ATTACH_BPF 50
#define SO_DETACH_BPF SO_DETACH_FILTER
+#define SO_ATTACH_REUSEPORT_CBPF 51
+#define SO_ATTACH_REUSEPORT_EBPF 52
+
#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index 1effea5..12a0565 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -388,18 +388,6 @@
#define __NR_switch_endian 363
#define __NR_userfaultfd 364
#define __NR_membarrier 365
-#define __NR_semop 366
-#define __NR_semget 367
-#define __NR_semctl 368
-#define __NR_semtimedop 369
-#define __NR_msgsnd 370
-#define __NR_msgrcv 371
-#define __NR_msgget 372
-#define __NR_msgctl 373
-#define __NR_shmat 374
-#define __NR_shmdt 375
-#define __NR_shmget 376
-#define __NR_shmctl 377
#define __NR_mlock2 378
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index c94d2e0..2c01665 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -188,8 +188,8 @@ static uint32_t do_plt_call(void *location,
pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
/* Init, or core PLT? */
- if (location >= mod->module_core
- && location < mod->module_core + mod->core_size)
+ if (location >= mod->core_layout.base
+ && location < mod->core_layout.base + mod->core_layout.size)
entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
else
entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
@@ -296,7 +296,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
}
#ifdef CONFIG_DYNAMIC_FTRACE
module->arch.tramp =
- do_plt_call(module->module_core,
+ do_plt_call(module->core_layout.base,
(unsigned long)ftrace_caller,
sechdrs, module);
#endif
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 32e2652..0cab9e8 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -27,6 +27,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/kmsg_dump.h>
+#include <linux/pagemap.h>
#include <linux/pstore.h>
#include <linux/zlib.h>
#include <asm/uaccess.h>
@@ -733,24 +734,10 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
static loff_t dev_nvram_llseek(struct file *file, loff_t offset, int origin)
{
- int size;
-
if (ppc_md.nvram_size == NULL)
return -ENODEV;
- size = ppc_md.nvram_size();
-
- switch (origin) {
- case 1:
- offset += file->f_pos;
- break;
- case 2:
- offset += size;
- break;
- }
- if (offset < 0)
- return -EINVAL;
- file->f_pos = offset;
- return file->f_pos;
+ return generic_file_llseek_size(file, offset, origin, MAX_LFS_FILESIZE,
+ ppc_md.nvram_size());
}
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 89eafd1..2675ae3 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -224,6 +224,12 @@ static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu)
static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr)
{
+ /*
+ * Check for illegal transactional state bit combination
+ * and if we find it, force the TS field to a safe state.
+ */
+ if ((msr & MSR_TS_MASK) == MSR_TS_MASK)
+ msr &= ~MSR_TS_MASK;
vcpu->arch.shregs.msr = msr;
kvmppc_end_cede(vcpu);
}
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 0478216..2d66a84 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -78,18 +78,9 @@ static void bpf_jit_build_prologue(struct bpf_prog *fp, u32 *image,
PPC_LI(r_X, 0);
}
- switch (filter[0].code) {
- case BPF_RET | BPF_K:
- case BPF_LD | BPF_W | BPF_LEN:
- case BPF_LD | BPF_W | BPF_ABS:
- case BPF_LD | BPF_H | BPF_ABS:
- case BPF_LD | BPF_B | BPF_ABS:
- /* first instruction sets A register (or is RET 'constant') */
- break;
- default:
- /* make sure we dont leak kernel information to user */
+ /* make sure we dont leak kernel information to user */
+ if (bpf_needs_clear_a(&filter[0]))
PPC_LI(r_A, 0);
- }
}
static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c
index a0cb8bd..6781bda 100644
--- a/arch/powerpc/platforms/82xx/ep8248e.c
+++ b/arch/powerpc/platforms/82xx/ep8248e.c
@@ -131,23 +131,15 @@ static int ep8248e_mdio_probe(struct platform_device *ofdev)
if (!bus)
return -ENOMEM;
- bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
- if (bus->irq == NULL) {
- ret = -ENOMEM;
- goto err_free_bus;
- }
-
bus->name = "ep8248e-mdio-bitbang";
bus->parent = &ofdev->dev;
snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start);
ret = of_mdiobus_register(bus, ofdev->dev.of_node);
if (ret)
- goto err_free_irq;
+ goto err_free_bus;
return 0;
-err_free_irq:
- kfree(bus->irq);
err_free_bus:
free_mdio_bitbang(bus);
return ret;
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index ae3f47b..ddf6350 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -41,7 +41,6 @@ static void __iomem *gpio_regs;
struct gpio_priv {
int mdc_pin;
int mdio_pin;
- int mdio_irqs[PHY_MAX_ADDR];
};
#define MDC_PIN(bus) (((struct gpio_priv *)bus->priv)->mdc_pin)
@@ -245,8 +244,6 @@ static int gpio_mdio_probe(struct platform_device *ofdev)
snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", *prop);
new_bus->priv = priv;
- new_bus->irq = priv->mdio_irqs;
-
prop = of_get_property(np, "mdc-pin", NULL);
priv->mdc_pin = *prop;
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
index 0a00e2a..e505223b 100644
--- a/arch/powerpc/platforms/powernv/opal-irqchip.c
+++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
@@ -83,7 +83,19 @@ static void opal_event_unmask(struct irq_data *d)
set_bit(d->hwirq, &opal_event_irqchip.mask);
opal_poll_events(&events);
- opal_handle_events(be64_to_cpu(events));
+ last_outstanding_events = be64_to_cpu(events);
+
+ /*
+ * We can't just handle the events now with opal_handle_events().
+ * If we did we would deadlock when opal_event_unmask() is called from
+ * handle_level_irq() with the irq descriptor lock held, because
+ * calling opal_handle_events() would call generic_handle_irq() and
+ * then handle_level_irq() which would try to take the descriptor lock
+ * again. Instead queue the events for later.
+ */
+ if (last_outstanding_events & opal_event_irqchip.mask)
+ /* Need to retrigger the interrupt */
+ irq_work_queue(&opal_event_irq_work);
}
static int opal_event_set_type(struct irq_data *d, unsigned int flow_type)
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 4296d55..57cffb8 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -278,7 +278,7 @@ static void opal_handle_message(void)
/* Sanity check */
if (type >= OPAL_MSG_TYPE_MAX) {
- pr_warning("%s: Unknown message type: %u\n", __func__, type);
+ pr_warn_once("%s: Unknown message type: %u\n", __func__, type);
return;
}
opal_message_do_notify(type, (void *)&msg);
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 610f472..a1ac80b 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -21,10 +21,12 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/string.h>
+#include <linux/fsl/edac.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/memblock.h>
#include <linux/log2.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/suspend.h>
#include <linux/syscore_ops.h>
@@ -1255,6 +1257,25 @@ void fsl_pcibios_fixup_phb(struct pci_controller *phb)
#endif
}
+static int add_err_dev(struct platform_device *pdev)
+{
+ struct platform_device *errdev;
+ struct mpc85xx_edac_pci_plat_data pd = {
+ .of_node = pdev->dev.of_node
+ };
+
+ errdev = platform_device_register_resndata(&pdev->dev,
+ "mpc85xx-pci-edac",
+ PLATFORM_DEVID_AUTO,
+ pdev->resource,
+ pdev->num_resources,
+ &pd, sizeof(pd));
+ if (IS_ERR(errdev))
+ return PTR_ERR(errdev);
+
+ return 0;
+}
+
static int fsl_pci_probe(struct platform_device *pdev)
{
struct device_node *node;
@@ -1262,8 +1283,13 @@ static int fsl_pci_probe(struct platform_device *pdev)
node = pdev->dev.of_node;
ret = fsl_add_bridge(pdev, fsl_pci_primary == node);
+ if (ret)
+ return ret;
- mpc85xx_pci_err_probe(pdev);
+ ret = add_err_dev(pdev);
+ if (ret)
+ dev_err(&pdev->dev, "couldn't register error device: %d\n",
+ ret);
return 0;
}
diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h
index c1cec77..1515885 100644
--- a/arch/powerpc/sysdev/fsl_pci.h
+++ b/arch/powerpc/sysdev/fsl_pci.h
@@ -130,15 +130,6 @@ void fsl_pci_assign_primary(void);
static inline void fsl_pci_assign_primary(void) {}
#endif
-#ifdef CONFIG_EDAC_MPC85XX
-int mpc85xx_pci_err_probe(struct platform_device *op);
-#else
-static inline int mpc85xx_pci_err_probe(struct platform_device *op)
-{
- return -ENOTSUPP;
-}
-#endif
-
#ifdef CONFIG_FSL_PCI
extern int fsl_pci_mcheck_exception(struct pt_regs *);
#else
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