Date: Fri, 1 May 2015 05:11:15 +0000 (UTC) From: Neel Natu <neel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r282296 - head/sys/amd64/vmm/amd Message-ID: <201505010511.t415BFcj098504@svn.freebsd.org>
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Author: neel Date: Fri May 1 05:11:14 2015 New Revision: 282296 URL: https://svnweb.freebsd.org/changeset/base/282296 Log: Emulate MSR_SYSCFG which is accessed by Linux on AMD cpus when MTRRs are enabled. MFC after: 2 weeks Modified: head/sys/amd64/vmm/amd/svm_msr.c Modified: head/sys/amd64/vmm/amd/svm_msr.c ============================================================================== --- head/sys/amd64/vmm/amd/svm_msr.c Fri May 1 05:01:56 2015 (r282295) +++ head/sys/amd64/vmm/amd/svm_msr.c Fri May 1 05:11:14 2015 (r282296) @@ -115,6 +115,7 @@ svm_rdmsr(struct svm_softc *sc, int vcpu case MSR_MTRR4kBase ... MSR_MTRR4kBase + 8: case MSR_MTRR16kBase ... MSR_MTRR16kBase + 1: case MSR_MTRR64kBase: + case MSR_SYSCFG: *result = 0; break; case MSR_AMDK8_IPM: @@ -141,6 +142,7 @@ svm_wrmsr(struct svm_softc *sc, int vcpu case MSR_MTRR4kBase ... MSR_MTRR4kBase + 8: case MSR_MTRR16kBase ... MSR_MTRR16kBase + 1: case MSR_MTRR64kBase: + case MSR_SYSCFG: break; /* Ignore writes */ case MSR_AMDK8_IPM: /*
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