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sys/arm64/arm64/minidump_machdep.c
Show First 20 Lines • Show All 61 Lines • ▼ Show 20 Lines | |||||
/* Handle chunked writes. */ | /* Handle chunked writes. */ | ||||
static size_t fragsz; | static size_t fragsz; | ||||
static void *dump_va; | static void *dump_va; | ||||
static size_t counter, progress, dumpsize; | static size_t counter, progress, dumpsize; | ||||
static uint64_t tmpbuffer[Ln_ENTRIES]; | static uint64_t tmpbuffer[Ln_ENTRIES]; | ||||
static int | static int | ||||
is_dumpable(vm_paddr_t pa) | |||||
{ | |||||
vm_page_t m; | |||||
int i; | |||||
if ((m = vm_phys_paddr_to_vm_page(pa)) != NULL) | |||||
return ((m->flags & PG_NODUMP) == 0); | |||||
for (i = 0; dump_avail[i] != 0 || dump_avail[i + 1] != 0; i += 2) { | |||||
if (pa >= dump_avail[i] && pa < dump_avail[i + 1]) | |||||
return (1); | |||||
} | |||||
return (0); | |||||
} | |||||
static int | |||||
blk_flush(struct dumperinfo *di) | blk_flush(struct dumperinfo *di) | ||||
{ | { | ||||
int error; | int error; | ||||
if (fragsz == 0) | if (fragsz == 0) | ||||
return (0); | return (0); | ||||
error = dump_append(di, dump_va, 0, fragsz); | error = dump_append(di, dump_va, 0, fragsz); | ||||
▲ Show 20 Lines • Show All 128 Lines • ▼ Show 20 Lines | for (va = VM_MIN_KERNEL_ADDRESS; va < kernel_vm_end; va += L2_SIZE) { | ||||
pmapsize += PAGE_SIZE; | pmapsize += PAGE_SIZE; | ||||
if (!pmap_get_tables(pmap_kernel(), va, &l0, &l1, &l2, &l3)) | if (!pmap_get_tables(pmap_kernel(), va, &l0, &l1, &l2, &l3)) | ||||
continue; | continue; | ||||
if ((*l1 & ATTR_DESCR_MASK) == L1_BLOCK) { | if ((*l1 & ATTR_DESCR_MASK) == L1_BLOCK) { | ||||
pa = *l1 & ~ATTR_MASK; | pa = *l1 & ~ATTR_MASK; | ||||
for (i = 0; i < Ln_ENTRIES * Ln_ENTRIES; | for (i = 0; i < Ln_ENTRIES * Ln_ENTRIES; | ||||
i++, pa += PAGE_SIZE) | i++, pa += PAGE_SIZE) | ||||
if (is_dumpable(pa)) | if (vm_phys_is_dumpable(pa)) | ||||
dump_add_page(pa); | dump_add_page(pa); | ||||
pmapsize += (Ln_ENTRIES - 1) * PAGE_SIZE; | pmapsize += (Ln_ENTRIES - 1) * PAGE_SIZE; | ||||
va += L1_SIZE - L2_SIZE; | va += L1_SIZE - L2_SIZE; | ||||
} else if ((*l2 & ATTR_DESCR_MASK) == L2_BLOCK) { | } else if ((*l2 & ATTR_DESCR_MASK) == L2_BLOCK) { | ||||
pa = *l2 & ~ATTR_MASK; | pa = *l2 & ~ATTR_MASK; | ||||
for (i = 0; i < Ln_ENTRIES; i++, pa += PAGE_SIZE) { | for (i = 0; i < Ln_ENTRIES; i++, pa += PAGE_SIZE) { | ||||
if (is_dumpable(pa)) | if (vm_phys_is_dumpable(pa)) | ||||
dump_add_page(pa); | dump_add_page(pa); | ||||
} | } | ||||
} else if ((*l2 & ATTR_DESCR_MASK) == L2_TABLE) { | } else if ((*l2 & ATTR_DESCR_MASK) == L2_TABLE) { | ||||
for (i = 0; i < Ln_ENTRIES; i++) { | for (i = 0; i < Ln_ENTRIES; i++) { | ||||
if ((l3[i] & ATTR_DESCR_MASK) != L3_PAGE) | if ((l3[i] & ATTR_DESCR_MASK) != L3_PAGE) | ||||
continue; | continue; | ||||
pa = l3[i] & ~ATTR_MASK; | pa = l3[i] & ~ATTR_MASK; | ||||
if (is_dumpable(pa)) | if (vm_phys_is_dumpable(pa)) | ||||
dump_add_page(pa); | dump_add_page(pa); | ||||
} | } | ||||
} | } | ||||
} | } | ||||
/* Calculate dump size. */ | /* Calculate dump size. */ | ||||
dumpsize = pmapsize; | dumpsize = pmapsize; | ||||
dumpsize += round_page(msgbufp->msg_size); | dumpsize += round_page(msgbufp->msg_size); | ||||
dumpsize += round_page(sizeof(dump_avail)); | dumpsize += round_page(sizeof(dump_avail)); | ||||
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages)); | dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages)); | ||||
VM_PAGE_DUMP_FOREACH(pa) { | VM_PAGE_DUMP_FOREACH(pa) { | ||||
if (is_dumpable(pa)) | if (vm_phys_is_dumpable(pa)) | ||||
dumpsize += PAGE_SIZE; | dumpsize += PAGE_SIZE; | ||||
else | else | ||||
dump_drop_page(pa); | dump_drop_page(pa); | ||||
} | } | ||||
dumpsize += PAGE_SIZE; | dumpsize += PAGE_SIZE; | ||||
progress = dumpsize; | progress = dumpsize; | ||||
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