void
dodumpsys()
{
const struct bdevsw *bdev;
daddr_t blkno;
int psize;
int error;
int addr;
int block;
int len;
vaddr_t dumpspace;
/* flush everything out of caches */
cpu_dcache_wbinv_all();
if (dumpdev == NODEV)
return;
if (dumpsize == 0) {
cpu_dumpconf();
}
if (dumplo <= 0 || dumpsize == 0) {
printf("\ndump to dev %u,%u not possible\n", major(dumpdev),
minor(dumpdev));
delay(5000000);
return;
}
printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev),
minor(dumpdev), dumplo);
bdev = bdevsw_lookup(dumpdev);
if (bdev == NULL || bdev->d_psize == NULL)
return;
psize = (*bdev->d_psize)(dumpdev);
printf("dump ");
if (psize == -1) {
printf("area unavailable\n");
return;
}
if ((error = cpu_dump()) != 0)
goto err;
blkno = dumplo + cpu_dumpsize();
dumpspace = memhook;
error = 0;
len = 0;
for (block = 0; block < bootconfig.dramblocks && error == 0; ++block) {
addr = bootconfig.dram[block].address;
for (;addr < (bootconfig.dram[block].address
+ (bootconfig.dram[block].pages * PAGE_SIZE));
addr += PAGE_SIZE) {
if ((len % (1024*1024)) == 0)
printf("%d ", len / (1024*1024));
pmap_kenter_pa(dumpspace, addr, VM_PROT_READ);
pmap_update(pmap_kernel());
error = (*bdev->d_dump)(dumpdev,
blkno, (void *) dumpspace, PAGE_SIZE);
if (error) goto err;
blkno += btodb(PAGE_SIZE);
len += PAGE_SIZE;
}
}
err:
switch (error) {
case ENXIO:
printf("device bad\n");
break;
case EFAULT:
printf("device not ready\n");
break;
case EINVAL:
printf("area improper\n");
break;
case EIO:
printf("i/o error\n");
break;
case EINTR:
printf("aborted from console\n");
break;
case 0:
printf("succeeded\n");
break;
default:
printf("error %d\n", error);
break;
}
printf("\n\n");
delay(5000000);
}
void
dumpsys()
{
const struct bdevsw *bdev;
daddr_t blkno;
int psize;
int error;
int addr;
int block;
int len;
vaddr_t dumpspace;
kcore_seg_t *kseg_p;
cpu_kcore_hdr_t *chdr_p;
char dump_hdr[dbtob(1)]; /* assumes header fits in one block */
/* Save registers. */
savectx(&dumppcb);
/* flush everything out of caches */
cpu_dcache_wbinv_all();
cpu_sdcache_wbinv_all();
if (dumpdev == NODEV)
return;
if (dumpsize == 0) {
dumpconf();
if (dumpsize == 0)
return;
}
if (dumplo <= 0) {
printf("\ndump to dev %u,%u not possible\n", major(dumpdev),
minor(dumpdev));
return;
}
printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev),
minor(dumpdev), dumplo);
#ifdef UVM_SWAP_ENCRYPT
uvm_swap_finicrypt_all();
#endif
blkno = dumplo;
dumpspace = (vaddr_t) memhook;
bdev = bdevsw_lookup(dumpdev);
if (bdev == NULL || bdev->d_psize == NULL)
return;
psize = (*bdev->d_psize)(dumpdev);
printf("dump ");
if (psize == -1) {
printf("area unavailable\n");
return;
}
/* Setup the dump header */
kseg_p = (kcore_seg_t *)dump_hdr;
chdr_p = (cpu_kcore_hdr_t *)&dump_hdr[ALIGN(sizeof(*kseg_p))];
bzero(dump_hdr, sizeof(dump_hdr));
CORE_SETMAGIC(*kseg_p, KCORE_MAGIC, MID_MACHINE, CORE_CPU);
kseg_p->c_size = sizeof(dump_hdr) - ALIGN(sizeof(*kseg_p));
*chdr_p = cpu_kcore_hdr;
error = (*bdev->d_dump)(dumpdev, blkno++, (caddr_t)dump_hdr,
sizeof(dump_hdr));
if (error != 0)
goto abort;
len = 0;
for (block = 0; block < bootconfig.dramblocks && error == 0; ++block) {
addr = bootconfig.dram[block].address;
for (;addr < (bootconfig.dram[block].address
+ (bootconfig.dram[block].pages * PAGE_SIZE));
addr += PAGE_SIZE) {
if ((len % (1024*1024)) == 0)
printf("%d ", len / (1024*1024));
pmap_kenter_pa(dumpspace, addr, PROT_READ);
pmap_update(pmap_kernel());
error = (*bdev->d_dump)(dumpdev,
blkno, (caddr_t) dumpspace, PAGE_SIZE);
pmap_kremove(dumpspace, PAGE_SIZE);
pmap_update(pmap_kernel());
if (error) break;
blkno += btodb(PAGE_SIZE);
len += PAGE_SIZE;
}
}
abort:
switch (error) {
case ENXIO:
printf("device bad\n");
break;
case EFAULT:
printf("device not ready\n");
break;
case EINVAL:
printf("area improper\n");
break;
case EIO:
printf("i/o error\n");
break;
case EINTR:
printf("aborted from console\n");
break;
default:
printf("succeeded\n");
break;
}
printf("\n\n");
delay(1000000);
}