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Advertise an additional memory BAR in the "dummy" device emulation.

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This is useful for testing the MOVS emulation when both the source and
destination addresses are in the MMIO space.

MFC after:	1 week
This commit is contained in:
Neel Natu 2015-05-02 03:25:24 +00:00
parent 3fd9c15ab5
commit fd4e0d4c52
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=282335
1 changed files with 23 additions and 15 deletions
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38
usr.sbin/bhyve/pci_emul.c
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@ -1938,7 +1938,7 @@ INOUT_PORT(pci_cfgdata, CONF1_DATA_PORT+3, IOPORT_F_INOUT, pci_emul_cfgdata);
#define DMEMSZ 4096
struct pci_emul_dsoftc {
uint8_t ioregs[DIOSZ];
uint8_t memregs[DMEMSZ];
uint8_t memregs[2][DMEMSZ];
};
#define PCI_EMUL_MSI_MSGS 4
@ -1967,6 +1967,9 @@ pci_emul_dinit(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
error = pci_emul_alloc_bar(pi, 1, PCIBAR_MEM32, DMEMSZ);
assert(error == 0);
error = pci_emul_alloc_bar(pi, 2, PCIBAR_MEM32, DMEMSZ);
assert(error == 0);
return (0);
}
@ -2006,21 +2009,23 @@ pci_emul_diow(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx,
}
}
if (baridx == 1) {
if (baridx == 1 || baridx == 2) {
if (offset + size > DMEMSZ) {
printf("diow: memw too large, offset %ld size %d\n",
offset, size);
return;
}
i = baridx - 1; /* 'memregs' index */
if (size == 1) {
sc->memregs[offset] = value;
sc->memregs[i][offset] = value;
} else if (size == 2) {
*(uint16_t *)&sc->memregs[offset] = value;
*(uint16_t *)&sc->memregs[i][offset] = value;
} else if (size == 4) {
*(uint32_t *)&sc->memregs[offset] = value;
*(uint32_t *)&sc->memregs[i][offset] = value;
} else if (size == 8) {
*(uint64_t *)&sc->memregs[offset] = value;
*(uint64_t *)&sc->memregs[i][offset] = value;
} else {
printf("diow: memw unknown size %d\n", size);
}
@ -2030,7 +2035,7 @@ pci_emul_diow(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx,
*/
}
if (baridx > 1) {
if (baridx > 2) {
printf("diow: unknown bar idx %d\n", baridx);
}
}
@ -2041,6 +2046,7 @@ pci_emul_dior(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx,
{
struct pci_emul_dsoftc *sc = pi->pi_arg;
uint32_t value;
int i;
if (baridx == 0) {
if (offset + size > DIOSZ) {
@ -2059,29 +2065,31 @@ pci_emul_dior(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx,
printf("dior: ior unknown size %d\n", size);
}
}
if (baridx == 1) {
if (baridx == 1 || baridx == 2) {
if (offset + size > DMEMSZ) {
printf("dior: memr too large, offset %ld size %d\n",
offset, size);
return (0);
}
i = baridx - 1; /* 'memregs' index */
if (size == 1) {
value = sc->memregs[offset];
value = sc->memregs[i][offset];
} else if (size == 2) {
value = *(uint16_t *) &sc->memregs[offset];
value = *(uint16_t *) &sc->memregs[i][offset];
} else if (size == 4) {
value = *(uint32_t *) &sc->memregs[offset];
value = *(uint32_t *) &sc->memregs[i][offset];
} else if (size == 8) {
value = *(uint64_t *) &sc->memregs[offset];
value = *(uint64_t *) &sc->memregs[i][offset];
} else {
printf("dior: ior unknown size %d\n", size);
}
}
if (baridx > 1) {
if (baridx > 2) {
printf("dior: unknown bar idx %d\n", baridx);
return (0);
}