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| author | Sheng Yang <sheng@linux.intel.com> | 2009-12-18 16:48:47 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:35:40 -0300 |
| commit | 4e47c7a6d714cf352b719db92a924b6ec487acc5 (patch) | |
| tree | b968765b85124e0b59f415bf8e4d499ef953236e /arch/x86/kvm/svm.c | |
| parent | 0e85188049afacdfce9c026144142264981bbabb (diff) | |
| download | lwn-4e47c7a6d714cf352b719db92a924b6ec487acc5.tar.gz lwn-4e47c7a6d714cf352b719db92a924b6ec487acc5.zip | |
KVM: VMX: Add instruction rdtscp support for guest
Before enabling, execution of "rdtscp" in guest would result in #UD.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 41777e6d9761..7f4e225feebf 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2914,6 +2914,11 @@ static bool svm_gb_page_enable(void) return true; } +static bool svm_rdtscp_supported(void) +{ + return false; +} + static struct kvm_x86_ops svm_x86_ops = { .cpu_has_kvm_support = has_svm, .disabled_by_bios = is_disabled, @@ -2982,6 +2987,8 @@ static struct kvm_x86_ops svm_x86_ops = { .gb_page_enable = svm_gb_page_enable, .cpuid_update = svm_cpuid_update, + + .rdtscp_supported = svm_rdtscp_supported, }; static int __init svm_init(void) |