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Gripe if some <slot,function> tuple is specified more than once instead of

Browse source 
silently overwriting the previous assignment.

Gripe if the emulation is not recognized instead of silently ignoring the
emulated device.

If an error is detected by pci_parse_slot() then exit from the command line
parsing loop in main().

Submitted by (initial version):	Chris Torek (chris.torek@gmail.com)
This commit is contained in:
Neel Natu 2013-04-26 02:24:50 +00:00
parent 78d58a11fc
commit b05c77ff84
3 changed files with 47 additions and 20 deletions
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12
usr.sbin/bhyve/bhyverun.c
View file

@ -631,11 +631,15 @@ main(int argc, char *argv[])
guest_tslice = atoi(optarg);
break;
case 's':
pci_parse_slot(optarg, 0);
break;
if (pci_parse_slot(optarg, 0) != 0)
exit(1);
else
break;
case 'S':
pci_parse_slot(optarg, 1);
break;
if (pci_parse_slot(optarg, 1) != 0)
exit(1);
else
break;
case 'm':
memsize = strtoul(optarg, NULL, 0) * MB;
break;

53
usr.sbin/bhyve/pci_emul.c
View file

@ -100,6 +100,8 @@ static uint64_t pci_emul_membase64;
#define PCI_EMUL_MEMBASE64 0xD000000000UL
#define PCI_EMUL_MEMLIMIT64 0xFD00000000UL
static struct pci_devemu *pci_emul_finddev(char *name);
static int pci_emul_devices;
/*
@ -123,17 +125,18 @@ static int pci_emul_devices;
static void
pci_parse_slot_usage(char *aopt)
{
printf("Invalid PCI slot info field \"%s\"\n", aopt);
free(aopt);
fprintf(stderr, "Invalid PCI slot info field \"%s\"\n", aopt);
}
void
int
pci_parse_slot(char *opt, int legacy)
{
char *slot, *func, *emul, *config;
char *str, *cpy;
int snum, fnum;
int error, snum, fnum;
error = -1;
str = cpy = strdup(opt);
config = NULL;
@ -152,19 +155,40 @@ pci_parse_slot(char *opt, int legacy)
}
if (emul == NULL) {
pci_parse_slot_usage(cpy);
return;
pci_parse_slot_usage(opt);
goto done;
}
snum = atoi(slot);
fnum = func ? atoi(func) : 0;
if (snum < 0 || snum >= MAXSLOTS || fnum < 0 || fnum >= MAXFUNCS) {
pci_parse_slot_usage(cpy);
} else {
pci_slotinfo[snum][fnum].si_name = emul;
pci_slotinfo[snum][fnum].si_param = config;
pci_slotinfo[snum][fnum].si_legacy = legacy;
pci_parse_slot_usage(opt);
goto done;
}
if (pci_slotinfo[snum][fnum].si_name != NULL) {
fprintf(stderr, "pci slot %d:%d already occupied!\n",
snum, fnum);
goto done;
}
if (pci_emul_finddev(emul) == NULL) {
fprintf(stderr, "pci slot %d:%d: unknown device \"%s\"\n",
snum, fnum, emul);
goto done;
}
error = 0;
pci_slotinfo[snum][fnum].si_name = emul;
pci_slotinfo[snum][fnum].si_param = config;
pci_slotinfo[snum][fnum].si_legacy = legacy;
done:
if (error)
free(cpy);
return (error);
}
static int
@ -988,10 +1012,9 @@ init_pci(struct vmctx *ctx)
si = &pci_slotinfo[slot][func];
if (si->si_name != NULL) {
pde = pci_emul_finddev(si->si_name);
if (pde != NULL) {
pci_emul_init(ctx, pde, slot, func,
si->si_param);
}
assert(pde != NULL);
pci_emul_init(ctx, pde, slot, func,
si->si_param);
}
}
}

2
usr.sbin/bhyve/pci_emul.h
View file

@ -206,7 +206,7 @@ int pci_msix_enabled(struct pci_devinst *pi);
int pci_msix_table_bar(struct pci_devinst *pi);
int pci_msix_pba_bar(struct pci_devinst *pi);
int pci_msi_msgnum(struct pci_devinst *pi);
void pci_parse_slot(char *opt, int legacy);
int pci_parse_slot(char *opt, int legacy);
void pci_populate_msicap(struct msicap *cap, int msgs, int nextptr);
int pci_emul_add_msixcap(struct pci_devinst *pi, int msgnum, int barnum);
int pci_emul_msix_twrite(struct pci_devinst *pi, uint64_t offset, int size,