From 8b97265a1516819d54c2d24b3874489a52f269d4 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 15 Sep 2015 17:34:42 +0200 Subject: [PATCH] KVM: VMX: align vmx->nested.nested_vmx_secondary_ctls_high to vmx->rdtscp_enabled The SECONDARY_EXEC_RDTSCP must be available iff RDTSCP is enabled in the guest. Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a5b26a940df2..dad471f8ca57 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8686,9 +8686,14 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) exec_control); } - if (nested && !vmx->rdtscp_enabled) - vmx->nested.nested_vmx_secondary_ctls_high &= - ~SECONDARY_EXEC_RDTSCP; + if (nested) { + if (vmx->rdtscp_enabled) + vmx->nested.nested_vmx_secondary_ctls_high |= + SECONDARY_EXEC_RDTSCP; + else + vmx->nested.nested_vmx_secondary_ctls_high &= + ~SECONDARY_EXEC_RDTSCP; + } } /* Exposing INVPCID only when PCID is exposed */ -- 2.20.1