Differential D27082 Diff 80269 head/sys/mips/mips/minidump_machdep.c

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head/sys/mips/mips/minidump_machdep.c

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CTASSERT(sizeof(struct kerneldumpheader) == 512);		CTASSERT(sizeof(struct kerneldumpheader) == 512);

static struct kerneldumpheader kdh;		static struct kerneldumpheader kdh;

/* Handle chunked writes. */		/* Handle chunked writes. */
static uint64_t counter, progress, dumpsize;		static uint64_t counter, progress, dumpsize;
/* Just auxiliary bufffer */		/* Just auxiliary bufffer */
static char tmpbuffer[PAGE_SIZE];		static char tmpbuffer[PAGE_SIZE] __aligned(sizeof(uint64_t));

extern pd_entry_t *kernel_segmap;		extern pd_entry_t *kernel_segmap;

static int		static int
is_dumpable(vm_paddr_t pa)		is_dumpable(vm_paddr_t pa)
{		{
vm_page_t m;		vm_page_t m;
int i;		int i;
▲ Show 20 Lines • Show All 88 Lines • ▼ Show 20 Lines	write_buffer(struct dumperinfo di, char ptr, size_t sz)

return (0);		return (0);
}		}

int		int
minidumpsys(struct dumperinfo *di)		minidumpsys(struct dumperinfo *di)
{		{
struct minidumphdr mdhdr;		struct minidumphdr mdhdr;
		uint64_t *dump_avail_buf;
uint32_t ptesize;		uint32_t ptesize;
vm_paddr_t pa;		vm_paddr_t pa;
vm_offset_t prev_pte = 0;		vm_offset_t prev_pte = 0;
uint32_t count = 0;		uint32_t count = 0;
vm_offset_t va;		vm_offset_t va;
pt_entry_t *pte;		pt_entry_t *pte;
int i, error;		int i, error;
void *dump_va;		void *dump_va;
Show All 25 Lines	minidumpsys(struct dumperinfo *di)
for (pa = 0; pa < phys_avail[0]; pa += PAGE_SIZE) {		for (pa = 0; pa < phys_avail[0]; pa += PAGE_SIZE) {
if (is_dumpable(pa))		if (is_dumpable(pa))
dump_add_page(pa);		dump_add_page(pa);
}		}

/* 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(sizeof(dump_avail));		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 (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;

/* Initialize mdhdr */		/* Initialize mdhdr */
bzero(&mdhdr, sizeof(mdhdr));		bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);		strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;		mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;		mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));		mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.ptesize = ptesize;		mdhdr.ptesize = ptesize;
mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;		mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;
mdhdr.dumpavailsize = round_page(sizeof(dump_avail));		mdhdr.dumpavailsize = round_page(nitems(dump_avail) * sizeof(uint64_t));

dump_init_header(di, &kdh, KERNELDUMPMAGIC, KERNELDUMP_MIPS_VERSION,		dump_init_header(di, &kdh, KERNELDUMPMAGIC, KERNELDUMP_MIPS_VERSION,
dumpsize);		dumpsize);

error = dump_start(di, &kdh);		error = dump_start(di, &kdh);
if (error != 0)		if (error != 0)
goto fail;		goto fail;

printf("Dumping %llu out of %ju MB:", (long long)dumpsize >> 20,		printf("Dumping %llu out of %ju MB:", (long long)dumpsize >> 20,
ptoa((uintmax_t)physmem) / 1048576);		ptoa((uintmax_t)physmem) / 1048576);

/* Dump my header */		/* Dump my header */
bzero(tmpbuffer, sizeof(tmpbuffer));		bzero(tmpbuffer, sizeof(tmpbuffer));
bcopy(&mdhdr, tmpbuffer, sizeof(mdhdr));		bcopy(&mdhdr, tmpbuffer, sizeof(mdhdr));
error = write_buffer(di, tmpbuffer, PAGE_SIZE);		error = write_buffer(di, tmpbuffer, PAGE_SIZE);
if (error)		if (error)
goto fail;		goto fail;

/* Dump msgbuf up front */		/* Dump msgbuf up front */
error = write_buffer(di, (char *)msgbufp->msg_ptr,		error = write_buffer(di, (char *)msgbufp->msg_ptr,
round_page(msgbufp->msg_size));		round_page(msgbufp->msg_size));
if (error)		if (error)
goto fail;		goto fail;

/* Dump dump_avail */		/* Dump dump_avail. Make a copy using 64-bit physical addresses. */
_Static_assert(sizeof(dump_avail) <= sizeof(tmpbuffer),		_Static_assert(nitems(dump_avail) * sizeof(uint64_t) <=
"Large dump_avail not handled");		sizeof(tmpbuffer), "Large dump_avail not handled");
bzero(tmpbuffer, sizeof(tmpbuffer));		bzero(tmpbuffer, sizeof(tmpbuffer));
		if (sizeof(dump_avail[0]) != sizeof(uint64_t)) {
		dump_avail_buf = (uint64_t *)tmpbuffer;
		for (i = 0; dump_avail[i] != 0 \|\| dump_avail[i + 1] != 0; i++) {
		dump_avail_buf[i] = dump_avail[i];
		dump_avail_buf[i + 1] = dump_avail[i + 1];
		}
		} else {
memcpy(tmpbuffer, dump_avail, sizeof(dump_avail));		memcpy(tmpbuffer, dump_avail, sizeof(dump_avail));
		}
error = write_buffer(di, tmpbuffer, PAGE_SIZE);		error = write_buffer(di, tmpbuffer, PAGE_SIZE);
if (error)		if (error)
goto fail;		goto fail;

/* Dump bitmap */		/* Dump bitmap */
error = write_buffer(di, (char *)vm_page_dump,		error = write_buffer(di, (char *)vm_page_dump,
round_page(BITSET_SIZE(vm_page_dump_pages)));		round_page(BITSET_SIZE(vm_page_dump_pages)));
if (error)		if (error)
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