From: Avi Kivity <avi@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, Alexander Graf <agrag@suse.de>
Subject: [PATCH 2/2] KVM: Fix bogus value returned for MSR_IA32_PERF_STATUS
Date: Wed, 1 Sep 2010 10:34:57 +0300 [thread overview]
Message-ID: <1283326497-20206-3-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1283326497-20206-1-git-send-email-avi@redhat.com>
The returned value is completely bogus, and sets reserved bits.
Return zero instead.
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/x86.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1cbf168..a2c03f1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1641,10 +1641,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
data = vcpu->arch.ia32_misc_enable_msr;
break;
case MSR_IA32_PERF_STATUS:
- /* TSC increment by tick */
- data = 1000ULL;
- /* CPU multiplier */
- data |= (((uint64_t)4ULL) << 40);
+ data = 0;
break;
case MSR_EFER:
data = vcpu->arch.efer;
--
1.7.1
next prev parent reply other threads:[~2010-09-01 7:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-01 7:34 [PATCH 0/2] Fix MSR_IA32_PERF_STATUS Avi Kivity
2010-09-01 7:34 ` [PATCH 1/2] KVM: Don't save/restore MSR_IA32_PERF_STATUS Avi Kivity
2010-09-01 7:34 ` Avi Kivity [this message]
2010-09-01 8:49 ` [PATCH 2/2] KVM: Fix bogus value returned for MSR_IA32_PERF_STATUS Alexander Graf
2010-09-01 8:55 ` Avi Kivity
2010-09-01 8:56 ` Alexander Graf
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