From 4f209989586c79e9bf59ba9381101f5fb449dfbb Mon Sep 17 00:00:00 2001 From: Jim Mattson Date: Wed, 19 Oct 2022 14:36:19 -0700 Subject: [PATCH] KVM: VMX: Guest usage of IA32_SPEC_CTRL is likely At this point in time, most guests (in the default, out-of-the-box configuration) are likely to use IA32_SPEC_CTRL. Therefore, drop the compiler hint that it is unlikely for KVM to be intercepting WRMSR of IA32_SPEC_CTRL. Signed-off-by: Jim Mattson Reviewed-by: Sean Christopherson Link: https://lore.kernel.org/r/20221019213620.1953281-2-jmattson@google.com Signed-off-by: Sean Christopherson --- arch/x86/kvm/vmx/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index cea8c07f5229..cb40f724d8cc 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -858,7 +858,7 @@ unsigned int __vmx_vcpu_run_flags(struct vcpu_vmx *vmx) * to change it directly without causing a vmexit. In that case read * it after vmexit and store it in vmx->spec_ctrl. */ - if (unlikely(!msr_write_intercepted(vmx, MSR_IA32_SPEC_CTRL))) + if (!msr_write_intercepted(vmx, MSR_IA32_SPEC_CTRL)) flags |= VMX_RUN_SAVE_SPEC_CTRL; return flags; -- 2.11.0