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Differential D31884 Diff 95967 sys/arm/arm/minidump_machdep.c

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sys/arm/arm/minidump_machdep.c

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static struct kerneldumpheader kdh; static struct kerneldumpheader kdh;
/* Handle chunked writes. */ /* Handle chunked writes. */
static size_t fragsz; static size_t fragsz;
static void *dump_va; static void *dump_va;
static uint64_t counter, progress; static uint64_t counter, progress;
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);
}
#define PG2MB(pgs) (((pgs) + (1 << 8) - 1) >> 8) #define PG2MB(pgs) (((pgs) + (1 << 8) - 1) >> 8)
static int static int
blk_flush(struct dumperinfo *di) blk_flush(struct dumperinfo *di)
{ {
int error; int error;
if (fragsz == 0) if (fragsz == 0)
▲ Show 20 Lines • Show All 106 Lines • ▼ Show 20 Linesminidumpsys(struct dumperinfo *di)
*/ */
dcache_wbinv_poc_all(); dcache_wbinv_poc_all();
counter = 0; counter = 0;
/* Walk page table pages, set bits in vm_page_dump */ /* Walk page table pages, set bits in vm_page_dump */
ptesize = 0; ptesize = 0;
for (va = KERNBASE; va < kernel_vm_end; va += PAGE_SIZE) { for (va = KERNBASE; va < kernel_vm_end; va += PAGE_SIZE) {
pa = pmap_dump_kextract(va, NULL); pa = pmap_dump_kextract(va, NULL);
if (pa != 0 && is_dumpable(pa)) if (pa != 0 && vm_phys_is_dumpable(pa))
dump_add_page(pa); dump_add_page(pa);
ptesize += sizeof(pt2_entry_t); ptesize += sizeof(pt2_entry_t);
} }
/* Calculate dump size. */ /* Calculate dump size. */
dumpsize = ptesize; dumpsize = ptesize;
dumpsize += round_page(msgbufp->msg_size); dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(nitems(dump_avail) * sizeof(uint64_t)); dumpsize += round_page(nitems(dump_avail) * sizeof(uint64_t));
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) {
/* Clear out undumpable pages now if needed */ /* Clear out undumpable pages now if needed */
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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