Page MenuHomeFreeBSD
Differential D26131 Diff 77330 head/lib/libkvm/kvm_minidump_powerpc64.c

Changeset View

Standalone View

View Options

head/lib/libkvm/kvm_minidump_powerpc64.c

Show First 20 Lines • Show All 62 Lines • ▼ Show 20 Lines_powerpc64_minidump_freevtop(kvm_t *kd)
kd->vmst = NULL; kd->vmst = NULL;
} }
static int static int
_powerpc64_minidump_initvtop(kvm_t *kd) _powerpc64_minidump_initvtop(kvm_t *kd)
{ {
struct vmstate *vmst; struct vmstate *vmst;
struct minidumphdr *hdr; struct minidumphdr *hdr;
off_t bitmap_off, pmap_off, sparse_off; off_t dump_avail_off, bitmap_off, pmap_off, sparse_off;
const char *mmu_name; const char *mmu_name;
/* Alloc VM */ /* Alloc VM */
vmst = _kvm_malloc(kd, sizeof(*vmst)); vmst = _kvm_malloc(kd, sizeof(*vmst));
if (vmst == NULL) { if (vmst == NULL) {
_kvm_err(kd, kd->program, "cannot allocate vm"); _kvm_err(kd, kd->program, "cannot allocate vm");
return (-1); return (-1);
} }
hdr = &vmst->hdr; hdr = &vmst->hdr;
kd->vmst = vmst; kd->vmst = vmst;
PPC64_MMU_OPS(kd) = NULL; PPC64_MMU_OPS(kd) = NULL;
/* Read minidump header */ /* Read minidump header */
if (pread(kd->pmfd, hdr, sizeof(*hdr), 0) != sizeof(*hdr)) { if (pread(kd->pmfd, hdr, sizeof(*hdr), 0) != sizeof(*hdr)) {
_kvm_err(kd, kd->program, "cannot read minidump header"); _kvm_err(kd, kd->program, "cannot read minidump header");
goto failed; goto failed;
} }
/* Check magic */ /* Check magic */
if (strncmp(MINIDUMP_MAGIC, hdr->magic, sizeof(hdr->magic)) != 0) { if (strncmp(MINIDUMP_MAGIC, hdr->magic, sizeof(hdr->magic)) != 0) {
_kvm_err(kd, kd->program, "not a minidump for this platform"); _kvm_err(kd, kd->program, "not a minidump for this platform");
goto failed; goto failed;
} }
/* Check version */ /* Check version */
hdr->version = be32toh(hdr->version); hdr->version = be32toh(hdr->version);
if (hdr->version != MINIDUMP_VERSION) { if (hdr->version != MINIDUMP_VERSION && hdr->version != 1) {
_kvm_err(kd, kd->program, "wrong minidump version. " _kvm_err(kd, kd->program, "wrong minidump version. "
"Expected %d got %d", MINIDUMP_VERSION, hdr->version); "Expected %d got %d", MINIDUMP_VERSION, hdr->version);
goto failed; goto failed;
} }
/* Convert header fields to host endian */ /* Convert header fields to host endian */
hdr->msgbufsize = be32toh(hdr->msgbufsize); hdr->msgbufsize = be32toh(hdr->msgbufsize);
hdr->bitmapsize = be32toh(hdr->bitmapsize); hdr->bitmapsize = be32toh(hdr->bitmapsize);
hdr->pmapsize = be32toh(hdr->pmapsize); hdr->pmapsize = be32toh(hdr->pmapsize);
hdr->kernbase = be64toh(hdr->kernbase); hdr->kernbase = be64toh(hdr->kernbase);
hdr->kernend = be64toh(hdr->kernend); hdr->kernend = be64toh(hdr->kernend);
hdr->dmapbase = be64toh(hdr->dmapbase); hdr->dmapbase = be64toh(hdr->dmapbase);
hdr->dmapend = be64toh(hdr->dmapend); hdr->dmapend = be64toh(hdr->dmapend);
hdr->hw_direct_map = be32toh(hdr->hw_direct_map); hdr->hw_direct_map = be32toh(hdr->hw_direct_map);
hdr->startkernel = be64toh(hdr->startkernel); hdr->startkernel = be64toh(hdr->startkernel);
hdr->endkernel = be64toh(hdr->endkernel); hdr->endkernel = be64toh(hdr->endkernel);
hdr->dumpavailsize = hdr->version == MINIDUMP_VERSION ?
be32toh(hdr->dumpavailsize) : 0;
vmst->kimg_start = PPC64_KERNBASE; vmst->kimg_start = PPC64_KERNBASE;
vmst->kimg_end = PPC64_KERNBASE + hdr->endkernel - hdr->startkernel; vmst->kimg_end = PPC64_KERNBASE + hdr->endkernel - hdr->startkernel;
/* dump header */ /* dump header */
dprintf("%s: mmu_name=%s,\n\t" dprintf("%s: mmu_name=%s,\n\t"
"msgbufsize=0x%jx, bitmapsize=0x%jx, pmapsize=0x%jx, " "msgbufsize=0x%jx, bitmapsize=0x%jx, pmapsize=0x%jx, "
"kernbase=0x%jx, kernend=0x%jx,\n\t" "kernbase=0x%jx, kernend=0x%jx,\n\t"
Show All 16 Lines_powerpc64_minidump_initvtop(kvm_t *kd)
else { else {
_kvm_err(kd, kd->program, "unsupported MMU: %s", mmu_name); _kvm_err(kd, kd->program, "unsupported MMU: %s", mmu_name);
goto failed; goto failed;
} }
if (PPC64_MMU_OP(kd, init) == -1) if (PPC64_MMU_OP(kd, init) == -1)
goto failed; goto failed;
/* Get dump parts' offsets */ /* Get dump parts' offsets */
bitmap_off = PPC64_PAGE_SIZE + ppc64_round_page(hdr->msgbufsize); dump_avail_off = PPC64_PAGE_SIZE + ppc64_round_page(hdr->msgbufsize);
bitmap_off = dump_avail_off + ppc64_round_page(hdr->dumpavailsize);
pmap_off = bitmap_off + ppc64_round_page(hdr->bitmapsize); pmap_off = bitmap_off + ppc64_round_page(hdr->bitmapsize);
sparse_off = pmap_off + ppc64_round_page(hdr->pmapsize); sparse_off = pmap_off + ppc64_round_page(hdr->pmapsize);
/* dump offsets */ /* dump offsets */
dprintf("%s: msgbuf_off=0x%jx, bitmap_off=0x%jx, pmap_off=0x%jx, " dprintf("%s: msgbuf_off=0x%jx, bitmap_off=0x%jx, pmap_off=0x%jx, "
"sparse_off=0x%jx\n", "sparse_off=0x%jx\n",
__func__, (uintmax_t)PPC64_PAGE_SIZE, (uintmax_t)bitmap_off, __func__, (uintmax_t)PPC64_PAGE_SIZE, (uintmax_t)bitmap_off,
(uintmax_t)pmap_off, (uintmax_t)sparse_off); (uintmax_t)pmap_off, (uintmax_t)sparse_off);
/* build physical address lookup table for sparse pages */ /* build physical address lookup table for sparse pages */
if (_kvm_pt_init(kd, hdr->bitmapsize, bitmap_off, sparse_off, if (_kvm_pt_init(kd, hdr->dumpavailsize, dump_avail_off,
PPC64_PAGE_SIZE, sizeof(uint64_t)) == -1) hdr->bitmapsize, bitmap_off, sparse_off, PPC64_PAGE_SIZE,
sizeof(uint64_t)) == -1)
goto failed; goto failed;
if (_kvm_pmap_init(kd, hdr->pmapsize, pmap_off) == -1) if (_kvm_pmap_init(kd, hdr->pmapsize, pmap_off) == -1)
goto failed; goto failed;
return (0); return (0);
failed: failed:
_powerpc64_minidump_freevtop(kd); _powerpc64_minidump_freevtop(kd);
▲ Show 20 Lines • Show All 46 Lines • Show Last 20 Lines