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Date: Mon, 14 Dec 2009 18:08:47 -1000 From: Zachary Amsden <zamsden@...hat.com> To: kvm@...r.kernel.org Cc: Zachary Amsden <zamsden@...hat.com>, Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>, Joerg Roedel <joerg.roedel@....com>, linux-kernel@...r.kernel.org, Dor Laor <dlaor@...hat.com> Subject: [PATCH RFC: kvm tsc virtualization 20/20] Get passthrough TSC working in SVM again Quick and dirty hack to get passthrough TSC back in SVM. Signed-off-by: Zachary Amsden <zamsden@...hat.com> --- arch/x86/kvm/svm.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 91eb263..91107a4 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -571,7 +571,6 @@ static void init_vmcb(struct vcpu_svm *svm) control->intercept = (1ULL << INTERCEPT_INTR) | (1ULL << INTERCEPT_NMI) | (1ULL << INTERCEPT_SMI) | - (1ULL << INTERCEPT_RDTSC) | (1ULL << INTERCEPT_CPUID) | (1ULL << INTERCEPT_INVD) | (1ULL << INTERCEPT_HLT) | @@ -592,6 +591,9 @@ static void init_vmcb(struct vcpu_svm *svm) (1ULL << INTERCEPT_MONITOR) | (1ULL << INTERCEPT_MWAIT); + if (svm->vcpu.kvm->arch.tsc_mode != KVM_TSC_MODE_PASSTHROUGH) + control->intercept |= (1ULL << INTERCEPT_RDTSC); + control->iopm_base_pa = iopm_base; control->msrpm_base_pa = __pa(svm->msrpm); control->tsc_offset = 0; -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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