static int _mips_minidump_initvtop(kvm_t *kd) { struct vmstate *vmst; uint32_t *bitmap; off_t off; vmst = _kvm_malloc(kd, sizeof(*vmst)); if (vmst == NULL) { _kvm_err(kd, kd->program, "cannot allocate vm"); return (-1); } kd->vmst = vmst; if (kd->nlehdr.e_ident[EI_CLASS] == ELFCLASS64 || kd->nlehdr.e_flags & EF_MIPS_ABI2) vmst->pte_size = 64; else vmst->pte_size = 32; if (pread(kd->pmfd, &vmst->hdr, sizeof(vmst->hdr), 0) != sizeof(vmst->hdr)) { _kvm_err(kd, kd->program, "cannot read dump header"); return (-1); } if (strncmp(MINIDUMP_MAGIC, vmst->hdr.magic, sizeof(vmst->hdr.magic)) != 0) { _kvm_err(kd, kd->program, "not a minidump for this platform"); return (-1); } vmst->hdr.version = _kvm32toh(kd, vmst->hdr.version); if (vmst->hdr.version != MINIDUMP_VERSION) { _kvm_err(kd, kd->program, "wrong minidump version. " "Expected %d got %d", MINIDUMP_VERSION, vmst->hdr.version); return (-1); } vmst->hdr.msgbufsize = _kvm32toh(kd, vmst->hdr.msgbufsize); vmst->hdr.bitmapsize = _kvm32toh(kd, vmst->hdr.bitmapsize); vmst->hdr.ptesize = _kvm32toh(kd, vmst->hdr.ptesize); vmst->hdr.kernbase = _kvm64toh(kd, vmst->hdr.kernbase); vmst->hdr.dmapbase = _kvm64toh(kd, vmst->hdr.dmapbase); vmst->hdr.dmapend = _kvm64toh(kd, vmst->hdr.dmapend); /* Skip header and msgbuf */ off = MIPS_PAGE_SIZE + mips_round_page(vmst->hdr.msgbufsize); bitmap = _kvm_malloc(kd, vmst->hdr.bitmapsize); if (bitmap == NULL) { _kvm_err(kd, kd->program, "cannot allocate %d bytes for " "bitmap", vmst->hdr.bitmapsize); return (-1); } if (pread(kd->pmfd, bitmap, vmst->hdr.bitmapsize, off) != (ssize_t)vmst->hdr.bitmapsize) { _kvm_err(kd, kd->program, "cannot read %d bytes for page bitmap", vmst->hdr.bitmapsize); free(bitmap); return (-1); } off += mips_round_page(vmst->hdr.bitmapsize); vmst->ptemap = _kvm_malloc(kd, vmst->hdr.ptesize); if (vmst->ptemap == NULL) { _kvm_err(kd, kd->program, "cannot allocate %d bytes for " "ptemap", vmst->hdr.ptesize); free(bitmap); return (-1); } if (pread(kd->pmfd, vmst->ptemap, vmst->hdr.ptesize, off) != (ssize_t)vmst->hdr.ptesize) { _kvm_err(kd, kd->program, "cannot read %d bytes for ptemap", vmst->hdr.ptesize); free(bitmap); return (-1); } off += vmst->hdr.ptesize; /* Build physical address hash table for sparse pages */ _kvm_hpt_init(kd, &vmst->hpt, bitmap, vmst->hdr.bitmapsize, off, MIPS_PAGE_SIZE, sizeof(*bitmap)); free(bitmap); return (0); }
static int _mips_minidump_initvtop(kvm_t *kd) { struct vmstate *vmst; off_t off, sparse_off; vmst = _kvm_malloc(kd, sizeof(*vmst)); if (vmst == NULL) { _kvm_err(kd, kd->program, "cannot allocate vm"); return (-1); } kd->vmst = vmst; if (kd->nlehdr.e_ident[EI_CLASS] == ELFCLASS64 || kd->nlehdr.e_flags & EF_MIPS_ABI2) vmst->pte_size = 64; else vmst->pte_size = 32; if (pread(kd->pmfd, &vmst->hdr, sizeof(vmst->hdr), 0) != sizeof(vmst->hdr)) { _kvm_err(kd, kd->program, "cannot read dump header"); return (-1); } if (strncmp(MINIDUMP_MAGIC, vmst->hdr.magic, sizeof(vmst->hdr.magic)) != 0) { _kvm_err(kd, kd->program, "not a minidump for this platform"); return (-1); } vmst->hdr.version = _kvm32toh(kd, vmst->hdr.version); if (vmst->hdr.version != MINIDUMP_VERSION) { _kvm_err(kd, kd->program, "wrong minidump version. " "Expected %d got %d", MINIDUMP_VERSION, vmst->hdr.version); return (-1); } vmst->hdr.msgbufsize = _kvm32toh(kd, vmst->hdr.msgbufsize); vmst->hdr.bitmapsize = _kvm32toh(kd, vmst->hdr.bitmapsize); vmst->hdr.ptesize = _kvm32toh(kd, vmst->hdr.ptesize); vmst->hdr.kernbase = _kvm64toh(kd, vmst->hdr.kernbase); vmst->hdr.dmapbase = _kvm64toh(kd, vmst->hdr.dmapbase); vmst->hdr.dmapend = _kvm64toh(kd, vmst->hdr.dmapend); /* Skip header and msgbuf */ off = MIPS_PAGE_SIZE + mips_round_page(vmst->hdr.msgbufsize); sparse_off = off + mips_round_page(vmst->hdr.bitmapsize) + mips_round_page(vmst->hdr.ptesize); if (_kvm_pt_init(kd, vmst->hdr.bitmapsize, off, sparse_off, MIPS_PAGE_SIZE, sizeof(uint32_t)) == -1) { return (-1); } off += mips_round_page(vmst->hdr.bitmapsize); if (_kvm_pmap_init(kd, vmst->hdr.ptesize, off) == -1) { return (-1); } off += mips_round_page(vmst->hdr.ptesize); return (0); }
static int _mips_minidump_kvatop(kvm_t *kd, kvaddr_t va, off_t *pa) { struct vmstate *vm; uint64_t pte; mips_physaddr_t offset, a; kvaddr_t pteindex; off_t ofs; uint32_t *ptemap32; uint64_t *ptemap64; if (ISALIVE(kd)) { _kvm_err(kd, 0, "_mips_minidump_kvatop called in live kernel!"); return (0); } offset = va & MIPS_PAGE_MASK; /* Operate with page-aligned address */ va &= ~MIPS_PAGE_MASK; vm = kd->vmst; ptemap32 = vm->ptemap; ptemap64 = vm->ptemap; if (kd->nlehdr.e_ident[EI_CLASS] == ELFCLASS64) { if (va >= MIPS_XKPHYS_START && va < MIPS_XKPHYS_END) { a = va & MIPS_XKPHYS_PHYS_MASK; goto found; } if (va >= MIPS64_KSEG0_START && va < MIPS64_KSEG0_END) { a = va & MIPS_KSEG0_PHYS_MASK; goto found; } if (va >= MIPS64_KSEG1_START && va < MIPS64_KSEG1_END) { a = va & MIPS_KSEG0_PHYS_MASK; goto found; } } else { if (va >= MIPS32_KSEG0_START && va < MIPS32_KSEG0_END) { a = va & MIPS_KSEG0_PHYS_MASK; goto found; } if (va >= MIPS32_KSEG1_START && va < MIPS32_KSEG1_END) { a = va & MIPS_KSEG0_PHYS_MASK; goto found; } } if (va >= vm->hdr.kernbase) { pteindex = (va - vm->hdr.kernbase) >> MIPS_PAGE_SHIFT; if (vm->pte_size == 64) { pte = _kvm64toh(kd, ptemap64[pteindex]); a = MIPS64_PTE_TO_PA(pte); } else { pte = _kvm32toh(kd, ptemap32[pteindex]); a = MIPS32_PTE_TO_PA(pte); } if (!pte) { _kvm_err(kd, kd->program, "_mips_minidump_kvatop: pte " "not valid"); goto invalid; } } else {