Page MenuHomeFreeBSD
Differential D26209 Diff 88259 usr.sbin/bhyve/pci_emul.h

Changeset View

Standalone View

View Options

usr.sbin/bhyve/pci_emul.h

Show First 20 Lines • Show All 45 Lines • ▼ Show 20 Lines
struct vmctx; struct vmctx;
struct pci_devinst; struct pci_devinst;
struct memory_region; struct memory_region;
struct vm_snapshot_meta; struct vm_snapshot_meta;
struct pci_devemu { struct pci_devemu {
char *pe_emu; /* Name of device emulation */ char *pe_emu; /* Name of device emulation */
/* quirks; especially used by GVT-d to adjust Top of Low Usable DRAM (lowmem_limit) */
int (*pe_early_quirks)(struct vmctx *, const nvlist_t *nvl);
/* instance creation */ /* instance creation */
int (*pe_init)(struct vmctx *, struct pci_devinst *, int (*pe_init)(struct vmctx *, struct pci_devinst *,
nvlist_t *); nvlist_t *);
int (*pe_legacy_config)(nvlist_t *, const char *); int (*pe_legacy_config)(nvlist_t *, const char *);
const char *pe_alias; const char *pe_alias;
/* ACPI DSDT enumeration */ /* ACPI DSDT enumeration */
void (*pe_write_dsdt)(struct pci_devinst *); void (*pe_write_dsdt)(struct pci_devinst *);
Show All 9 Linesstruct pci_devemu {
/* BAR read/write callbacks */ /* BAR read/write callbacks */
void (*pe_barwrite)(struct vmctx *ctx, int vcpu, void (*pe_barwrite)(struct vmctx *ctx, int vcpu,
struct pci_devinst *pi, int baridx, struct pci_devinst *pi, int baridx,
uint64_t offset, int size, uint64_t value); uint64_t offset, int size, uint64_t value);
uint64_t (*pe_barread)(struct vmctx *ctx, int vcpu, uint64_t (*pe_barread)(struct vmctx *ctx, int vcpu,
struct pci_devinst *pi, int baridx, struct pci_devinst *pi, int baridx,
uint64_t offset, int size); uint64_t offset, int size);
void (*pe_baraddr)(struct vmctx *ctx, struct pci_devinst *pi, int (*pe_baraddr)(struct vmctx *ctx, struct pci_devinst *pi, int baridx,
int baridx, int enabled, uint64_t address); int enabled, uint64_t address);
/* Save/restore device state */ /* Save/restore device state */
int (*pe_snapshot)(struct vm_snapshot_meta *meta); int (*pe_snapshot)(struct vm_snapshot_meta *meta);
int (*pe_pause)(struct vmctx *ctx, struct pci_devinst *pi); int (*pe_pause)(struct vmctx *ctx, struct pci_devinst *pi);
int (*pe_resume)(struct vmctx *ctx, struct pci_devinst *pi); int (*pe_resume)(struct vmctx *ctx, struct pci_devinst *pi);
}; };
#define PCI_EMUL_SET(x) DATA_SET(pci_devemu_set, x); #define PCI_EMUL_SET(x) DATA_SET(pci_devemu_set, x);
enum pcibar_type { enum pcibar_type {
PCIBAR_NONE, PCIBAR_NONE,
PCIBAR_IO, PCIBAR_IO,
PCIBAR_MEM32, PCIBAR_MEM32,
PCIBAR_MEM64, PCIBAR_MEM64,
PCIBAR_MEMHI64 PCIBAR_MEMHI64
}; };
struct pcibar { struct pcibar {
enum pcibar_type type; /* io or memory */ enum pcibar_type type; /* io or memory */
uint64_t size; uint64_t size;
uint64_t addr; uint64_t addr;
uint8_t lobits;
}; };
#define PI_NAMESZ 40 #define PI_NAMESZ 40
struct msix_table_entry { struct msix_table_entry {
uint64_t addr; uint64_t addr;
uint32_t msg_data; uint32_t msg_data;
uint32_t vector_control; uint32_t vector_control;
▲ Show 20 Lines • Show All 109 Lines • ▼ Show 20 Linesstruct pciecap {
uint16_t slot_control2; uint16_t slot_control2;
uint16_t slot_status2; uint16_t slot_status2;
} __packed; } __packed;
static_assert(sizeof(struct pciecap) == 60, "compile-time assertion failed"); static_assert(sizeof(struct pciecap) == 60, "compile-time assertion failed");
typedef void (*pci_lintr_cb)(int b, int s, int pin, int pirq_pin, typedef void (*pci_lintr_cb)(int b, int s, int pin, int pirq_pin,
int ioapic_irq, void *arg); int ioapic_irq, void *arg);
int pci_early_quirks(struct vmctx *ctx);
int init_pci(struct vmctx *ctx); int init_pci(struct vmctx *ctx);
void pci_callback(void); void pci_callback(void);
int pci_emul_alloc_bar(struct pci_devinst *pdi, int idx, int pci_emul_alloc_bar(struct pci_devinst *pdi, int idx,
enum pcibar_type type, uint64_t size); enum pcibar_type type, uint64_t size);
int pci_emul_adjust_gsmbase(struct vmctx *ctx, uint64_t size);
uint64_t pci_emul_alloc_gsm(uint64_t size);
int pci_emul_add_msicap(struct pci_devinst *pi, int msgnum); int pci_emul_add_msicap(struct pci_devinst *pi, int msgnum);
int pci_emul_add_pciecap(struct pci_devinst *pi, int pcie_device_type); int pci_emul_add_pciecap(struct pci_devinst *pi, int pcie_device_type);
void pci_emul_capwrite(struct pci_devinst *pi, int offset, int bytes, void pci_emul_capwrite(struct pci_devinst *pi, int offset, int bytes,
uint32_t val, uint8_t capoff, int capid); uint32_t val, uint8_t capoff, int capid);
void pci_emul_cmd_changed(struct pci_devinst *pi, uint16_t old); void pci_emul_cmd_changed(struct pci_devinst *pi, uint16_t old);
void pci_generate_msi(struct pci_devinst *pi, int msgnum); void pci_generate_msi(struct pci_devinst *pi, int msgnum);
void pci_generate_msix(struct pci_devinst *pi, int msgnum); void pci_generate_msix(struct pci_devinst *pi, int msgnum);
void pci_lintr_assert(struct pci_devinst *pi); void pci_lintr_assert(struct pci_devinst *pi);
▲ Show 20 Lines • Show All 60 Lines • ▼ Show 20 Lines
static __inline uint32_t static __inline uint32_t
pci_get_cfgdata32(struct pci_devinst *pi, int offset) pci_get_cfgdata32(struct pci_devinst *pi, int offset)
{ {
assert(offset <= (PCI_REGMAX - 3) && (offset & 3) == 0); assert(offset <= (PCI_REGMAX - 3) && (offset & 3) == 0);
return (*(uint32_t *)(pi->pi_cfgdata + offset)); return (*(uint32_t *)(pi->pi_cfgdata + offset));
} }
#endif /* _PCI_EMUL_H_ */ #endif /* _PCI_EMUL_H_ */
corvinkAuthorUnsubmitted
Done
Inline Actions

Changing this function would enable GPU-Passthrough of dedicated graphics to a Windows VM:

static __inline int
is_passthru(struct pci_devinst *pi)
{
    return ((strcmp(pi->pi_d->pe_emu, "passthru") == 0) ||
            (strcmp(pi->pi_d->pe_emu, "gvt-d") == 0));
}
corvink: Changing this function would enable GPU-Passthrough of dedicated graphics to a Windows VM: ```…