Differential D27095 Diff 79449 head/usr.sbin/bhyve/pci_emul.c

Changeset View

Standalone View

head/usr.sbin/bhyve/pci_emul.c

Show All 27 Lines
* $FreeBSD$		* $FreeBSD$
*/		*/

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <sys/param.h>		#include <sys/param.h>
#include <sys/linker_set.h>		#include <sys/linker_set.h>
		#include <vm/vm.h>
		#include <vm/vm_param.h>
		#include <vm/pmap.h>

#include <ctype.h>		#include <ctype.h>
#include <errno.h>		#include <errno.h>
#include <pthread.h>		#include <pthread.h>
#include <stdio.h>		#include <stdio.h>
#include <stdlib.h>		#include <stdlib.h>
#include <string.h>		#include <string.h>
#include <strings.h>		#include <strings.h>
#include <assert.h>		#include <assert.h>
#include <stdbool.h>		#include <stdbool.h>

#include <machine/vmm.h>		#include <machine/vmm.h>
#include <machine/vmm_snapshot.h>		#include <machine/vmm_snapshot.h>
		#include <machine/cpufunc.h>
		#include <machine/specialreg.h>
#include <vmmapi.h>		#include <vmmapi.h>

#include "acpi.h"		#include "acpi.h"
#include "bhyverun.h"		#include "bhyverun.h"
#include "debug.h"		#include "debug.h"
#include "inout.h"		#include "inout.h"
#include "ioapic.h"		#include "ioapic.h"
#include "mem.h"		#include "mem.h"
Show All 36 Lines

static struct businfo *pci_businfo[MAXBUSES];		static struct businfo *pci_businfo[MAXBUSES];

SET_DECLARE(pci_devemu_set, struct pci_devemu);		SET_DECLARE(pci_devemu_set, struct pci_devemu);

static uint64_t pci_emul_iobase;		static uint64_t pci_emul_iobase;
static uint64_t pci_emul_membase32;		static uint64_t pci_emul_membase32;
static uint64_t pci_emul_membase64;		static uint64_t pci_emul_membase64;
		static uint64_t pci_emul_memlim64;

#define PCI_EMUL_IOBASE 0x2000		#define PCI_EMUL_IOBASE 0x2000
#define PCI_EMUL_IOLIMIT 0x10000		#define PCI_EMUL_IOLIMIT 0x10000

#define PCI_EMUL_ECFG_BASE 0xE0000000 /* 3.5GB */		#define PCI_EMUL_ECFG_BASE 0xE0000000 /* 3.5GB */
#define PCI_EMUL_ECFG_SIZE (MAXBUSES * 1024 * 1024) /* 1MB per bus */		#define PCI_EMUL_ECFG_SIZE (MAXBUSES * 1024 * 1024) /* 1MB per bus */
SYSRES_MEM(PCI_EMUL_ECFG_BASE, PCI_EMUL_ECFG_SIZE);		SYSRES_MEM(PCI_EMUL_ECFG_BASE, PCI_EMUL_ECFG_SIZE);

#define PCI_EMUL_MEMLIMIT32 PCI_EMUL_ECFG_BASE		#define PCI_EMUL_MEMLIMIT32 PCI_EMUL_ECFG_BASE

#define PCI_EMUL_MEMBASE64 0xD000000000UL
#define PCI_EMUL_MEMLIMIT64 0xFD00000000UL

static struct pci_devemu pci_emul_finddev(char name);		static struct pci_devemu pci_emul_finddev(char name);
static void pci_lintr_route(struct pci_devinst *pi);		static void pci_lintr_route(struct pci_devinst *pi);
static void pci_lintr_update(struct pci_devinst *pi);		static void pci_lintr_update(struct pci_devinst *pi);
static void pci_cfgrw(struct vmctx *ctx, int vcpu, int in, int bus, int slot,		static void pci_cfgrw(struct vmctx *ctx, int vcpu, int in, int bus, int slot,
int func, int coff, int bytes, uint32_t *val);		int func, int coff, int bytes, uint32_t *val);

static __inline void		static __inline void
CFGWRITE(struct pci_devinst *pi, int coff, uint32_t val, int bytes)		CFGWRITE(struct pci_devinst *pi, int coff, uint32_t val, int bytes)
▲ Show 20 Lines • Show All 505 Lines • ▼ Show 20 Lines	case PCIBAR_MEM64:
if (size > 32 * 1024 * 1024) {		if (size > 32 * 1024 * 1024) {
/*		/*
* XXX special case for device requiring peer-peer DMA		* XXX special case for device requiring peer-peer DMA
*/		*/
if (size == 0x100000000UL)		if (size == 0x100000000UL)
baseptr = &hostbase;		baseptr = &hostbase;
else		else
baseptr = &pci_emul_membase64;		baseptr = &pci_emul_membase64;
limit = PCI_EMUL_MEMLIMIT64;		limit = pci_emul_memlim64;
mask = PCIM_BAR_MEM_BASE;		mask = PCIM_BAR_MEM_BASE;
lobits = PCIM_BAR_MEM_SPACE \| PCIM_BAR_MEM_64 \|		lobits = PCIM_BAR_MEM_SPACE \| PCIM_BAR_MEM_64 \|
PCIM_BAR_MEM_PREFETCH;		PCIM_BAR_MEM_PREFETCH;
} else {		} else {
baseptr = &pci_emul_membase32;		baseptr = &pci_emul_membase32;
limit = PCI_EMUL_MEMLIMIT32;		limit = PCI_EMUL_MEMLIMIT32;
mask = PCIM_BAR_MEM_BASE;		mask = PCIM_BAR_MEM_BASE;
lobits = PCIM_BAR_MEM_SPACE \| PCIM_BAR_MEM_64;		lobits = PCIM_BAR_MEM_SPACE \| PCIM_BAR_MEM_64;
▲ Show 20 Lines • Show All 452 Lines • ▼ Show 20 Lines
init_pci(struct vmctx *ctx)		init_pci(struct vmctx *ctx)
{		{
struct mem_range mr;		struct mem_range mr;
struct pci_devemu *pde;		struct pci_devemu *pde;
struct businfo *bi;		struct businfo *bi;
struct slotinfo *si;		struct slotinfo *si;
struct funcinfo *fi;		struct funcinfo *fi;
size_t lowmem;		size_t lowmem;
int bus, slot, func;		uint64_t cpu_maxphysaddr, pci_emul_memresv64;
int error;		u_int regs[4];
		int bus, slot, func, error;

pci_emul_iobase = PCI_EMUL_IOBASE;		pci_emul_iobase = PCI_EMUL_IOBASE;
pci_emul_membase32 = vm_get_lowmem_limit(ctx);		pci_emul_membase32 = vm_get_lowmem_limit(ctx);
pci_emul_membase64 = PCI_EMUL_MEMBASE64;
		do_cpuid(0x80000008, regs);
		cpu_maxphysaddr = 1ULL << (regs[0] & 0xff);
		if (cpu_maxphysaddr > VM_MAXUSER_ADDRESS_LA48)
		cpu_maxphysaddr = VM_MAXUSER_ADDRESS_LA48;
		pci_emul_memresv64 = cpu_maxphysaddr / 4;
		/*
		* Max power of 2 that is less then
		* cpu_maxphysaddr - pci_emul_memresv64.
		*/
		pci_emul_membase64 = 1ULL << (flsl(cpu_maxphysaddr -
		pci_emul_memresv64) - 1);
		pci_emul_memlim64 = cpu_maxphysaddr;

for (bus = 0; bus < MAXBUSES; bus++) {		for (bus = 0; bus < MAXBUSES; bus++) {
if ((bi = pci_businfo[bus]) == NULL)		if ((bi = pci_businfo[bus]) == NULL)
continue;		continue;
/*		/*
* Keep track of the i/o and memory resources allocated to		* Keep track of the i/o and memory resources allocated to
* this bus.		* this bus.
*/		*/
▲ Show 20 Lines • Show All 1,226 Lines • Show Last 20 Lines