diff options
| author | Wei Huang <wehuang@redhat.com> | 2014-08-13 12:06:14 -0400 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2016-04-11 16:43:53 +0200 |
| commit | 9112aa764e14174e8b1b3e035c77c5a33103e64a (patch) | |
| tree | 1f6b4d720f941b819e06674750517330336c5cbf /arch | |
| parent | b8c77bd5c38ebf85eb4dfa632f3f3d61ec5db219 (diff) | |
KVM: SVM: add rdmsr support for AMD event registers
commit dc9b2d933a1d5782b70977024f862759c8ebb2f7 upstream.
Current KVM only supports RDMSR for K7_EVNTSEL0 and K7_PERFCTR0
MSRs. Reading the rest MSRs will trigger KVM to inject #GP into
guest VM. This causes a warning message "Failed to access perfctr
msr (MSR c0010001 is ffffffffffffffff)" on AMD host. This patch
adds RDMSR support for all K7_EVNTSELn and K7_PERFCTRn registers
and thus supresses the warning message.
Signed-off-by: Wei Huang <wehuang@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 356e78f2ad1a..c47a4ecb584c 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2367,7 +2367,13 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_K7_HWCR: case MSR_VM_HSAVE_PA: case MSR_K7_EVNTSEL0: + case MSR_K7_EVNTSEL1: + case MSR_K7_EVNTSEL2: + case MSR_K7_EVNTSEL3: case MSR_K7_PERFCTR0: + case MSR_K7_PERFCTR1: + case MSR_K7_PERFCTR2: + case MSR_K7_PERFCTR3: case MSR_K8_INT_PENDING_MSG: case MSR_AMD64_NB_CFG: case MSR_FAM10H_MMIO_CONF_BASE: |