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for PV XEN translate page table entries from machine (real) to physical (logical) addresses so that kgdb can

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translate them to the correct coredump offsets
This commit is contained in:
Kip Macy 2009-12-10 07:48:47 +00:00
parent 30a9ca8e26
commit 126e2c082b
1 changed files with 16 additions and 0 deletions
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16
sys/i386/i386/minidump_machdep.c
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@ -313,7 +313,23 @@ minidumpsys(struct dumperinfo *di)
}
if ((pd[j] & PG_V) == PG_V) {
pa = xpmap_mtop(pd[j] & PG_FRAME);
#ifndef XEN
error = blk_write(di, 0, pa, PAGE_SIZE);
#else
pt = pmap_kenter_temporary(pa, 0);
memcpy(fakept, pt, PAGE_SIZE);
for (i = 0; i < NPTEPG; i++)
fakept[i] = xpmap_mtop(fakept[i]);
error = blk_write(di, (char *)&fakept, 0, PAGE_SIZE);
if (error)
goto fail;
/* flush, in case we reuse fakept in the same block */
error = blk_flush(di);
if (error)
goto fail;
bzero(fakept, sizeof(fakept));
#endif
if (error)
goto fail;
} else {