Date: Thu, 10 Dec 2009 07:48:47 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r200352 - head/sys/i386/i386 Message-ID: <200912100748.nBA7mlKq054943@svn.freebsd.org>
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Author: kmacy Date: Thu Dec 10 07:48:47 2009 New Revision: 200352 URL: http://svn.freebsd.org/changeset/base/200352 Log: for PV XEN translate page table entries from machine (real) to physical (logical) addresses so that kgdb can translate them to the correct coredump offsets Modified: head/sys/i386/i386/minidump_machdep.c Modified: head/sys/i386/i386/minidump_machdep.c ============================================================================== --- head/sys/i386/i386/minidump_machdep.c Thu Dec 10 06:42:28 2009 (r200351) +++ head/sys/i386/i386/minidump_machdep.c Thu Dec 10 07:48:47 2009 (r200352) @@ -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 {
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