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[RFC,v1,10/10] KVM: nVMX: Use cached host MSR_IA32_VMX_MISC value for setting up nested MSR

Message ID 20220622164432.194640-11-vkuznets@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: nVMX: Use vmcs_config for setting up nested VMX MSRs | expand

Commit Message

Vitaly Kuznetsov June 22, 2022, 4:44 p.m. UTC 
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 arch/x86/kvm/vmx/nested.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
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Patch

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index ede6314a641e..97d0c9fa4444 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6738,10 +6738,7 @@  void nested_vmx_setup_ctls_msrs(struct vmcs_config *vmcs_conf, u32 ept_caps)
 		msrs->secondary_ctls_high |= SECONDARY_EXEC_ENCLS_EXITING;
 
 	/* miscellaneous data */
-	rdmsr(MSR_IA32_VMX_MISC,
-		msrs->misc_low,
-		msrs->misc_high);
-	msrs->misc_low &= VMX_MISC_SAVE_EFER_LMA;
+	msrs->misc_low = (u32)vmcs_conf->misc & VMX_MISC_SAVE_EFER_LMA;
 	msrs->misc_low |=
 		MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS |
 		VMX_MISC_EMULATED_PREEMPTION_TIMER_RATE |