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KVM: VMX: Guest usage of IA32_SPEC_CTRL is likely

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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 <jmattson@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20221019213620.1953281-2-jmattson@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Jim Mattson 2022-10-19 14:36:19 -07:00 committed by Sean Christopherson
parent 9cc409325d
commit 4f20998958
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/vmx/vmx.c
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@ -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;