diff options
Diffstat (limited to 'usr.sbin/bhyve/pci_lpc.c')
-rw-r--r-- | usr.sbin/bhyve/pci_lpc.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/usr.sbin/bhyve/pci_lpc.c b/usr.sbin/bhyve/pci_lpc.c index 4157c5c..a1e750d 100644 --- a/usr.sbin/bhyve/pci_lpc.c +++ b/usr.sbin/bhyve/pci_lpc.c @@ -40,10 +40,15 @@ __FBSDID("$FreeBSD$"); #include <vmmapi.h> +#include "acpi.h" #include "inout.h" #include "pci_emul.h" +#include "pci_lpc.h" #include "uart_emul.h" +SET_DECLARE(lpc_dsdt_set, struct lpc_dsdt); +SET_DECLARE(lpc_sysres_set, struct lpc_sysres); + static struct pci_devinst *lpc_bridge; #define LPC_UART_NUM 2 @@ -52,6 +57,7 @@ static struct lpc_uart_softc { const char *opts; int iobase; int irq; + int enabled; } lpc_uart_softc[LPC_UART_NUM]; static const char *lpc_uart_names[LPC_UART_NUM] = { "COM1", "COM2" }; @@ -164,12 +170,92 @@ lpc_init(void) error = register_inout(&iop); assert(error == 0); + sc->enabled = 1; } return (0); } static void +pci_lpc_write_dsdt(struct pci_devinst *pi) +{ + struct lpc_dsdt **ldpp, *ldp; + + dsdt_line(""); + dsdt_line("Device (ISA)"); + dsdt_line("{"); + dsdt_line(" Name (_ADR, 0x%04X%04X)", pi->pi_slot, pi->pi_func); + dsdt_line(" OperationRegion (P40C, PCI_Config, 0x60, 0x04)"); + + dsdt_indent(1); + SET_FOREACH(ldpp, lpc_dsdt_set) { + ldp = *ldpp; + ldp->handler(); + } + dsdt_unindent(1); + + dsdt_line("}"); +} + +static void +pci_lpc_sysres_dsdt(void) +{ + struct lpc_sysres **lspp, *lsp; + + dsdt_line(""); + dsdt_line("Device (SIO)"); + dsdt_line("{"); + dsdt_line(" Name (_HID, EisaId (\"PNP0C02\"))"); + dsdt_line(" Name (_CRS, ResourceTemplate ()"); + dsdt_line(" {"); + + dsdt_indent(2); + SET_FOREACH(lspp, lpc_sysres_set) { + lsp = *lspp; + switch (lsp->type) { + case LPC_SYSRES_IO: + dsdt_fixed_ioport(lsp->base, lsp->length); + break; + case LPC_SYSRES_MEM: + dsdt_fixed_mem32(lsp->base, lsp->length); + break; + } + } + dsdt_unindent(2); + + dsdt_line(" })"); + dsdt_line("}"); +} +LPC_DSDT(pci_lpc_sysres_dsdt); + +static void +pci_lpc_uart_dsdt(void) +{ + struct lpc_uart_softc *sc; + int unit; + + for (unit = 0; unit < LPC_UART_NUM; unit++) { + sc = &lpc_uart_softc[unit]; + if (!sc->enabled) + continue; + dsdt_line(""); + dsdt_line("Device (%s)", lpc_uart_names[unit]); + dsdt_line("{"); + dsdt_line(" Name (_HID, EisaId (\"PNP0501\"))"); + dsdt_line(" Name (_UID, %d)", unit + 1); + dsdt_line(" Name (_CRS, ResourceTemplate ()"); + dsdt_line(" {"); + dsdt_indent(2); + dsdt_fixed_ioport(sc->iobase, UART_IO_BAR_SIZE); + dsdt_fixed_irq(sc->irq); + dsdt_unindent(2); + dsdt_line(" })"); + dsdt_line("}"); + } +} +LPC_DSDT(pci_lpc_uart_dsdt); + +static void pci_lpc_write(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx, uint64_t offset, int size, uint64_t value) { @@ -211,6 +297,7 @@ pci_lpc_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts) struct pci_devemu pci_de_lpc = { .pe_emu = "lpc", .pe_init = pci_lpc_init, + .pe_write_dsdt = pci_lpc_write_dsdt, .pe_barwrite = pci_lpc_write, .pe_barread = pci_lpc_read }; |