Date: Sun, 10 Nov 2019 09:14:23 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r354587 - stable/12/sys/amd64/amd64 Message-ID: <201911100914.xAA9EN9H056143@repo.freebsd.org>
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Author: kib Date: Sun Nov 10 09:14:22 2019 New Revision: 354587 URL: https://svnweb.freebsd.org/changeset/base/354587 Log: MFC r354281: amd64: Store %cr3 into pcpu saved_ucr3 on double fault. Modified: stable/12/sys/amd64/amd64/exception.S Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/amd64/amd64/exception.S ============================================================================== --- stable/12/sys/amd64/amd64/exception.S Sun Nov 10 09:13:12 2019 (r354586) +++ stable/12/sys/amd64/amd64/exception.S Sun Nov 10 09:14:22 2019 (r354587) @@ -349,6 +349,8 @@ IDTVEC(dblfault) jz 1f /* already running with kernel GS.base */ swapgs 1: lfence + movq %cr3,%rax + movq %rax,PCPU(SAVED_UCR3) movq PCPU(KCR3),%rax cmpq $~0,%rax je 2f
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