Messages in this thread Patch in this message | | | From | David Edmondson <> | Subject | [PATCH v5 3/5] KVM: x86: dump_vmcs should consider only the load controls of EFER/PAT | Date | Thu, 18 Mar 2021 12:08:39 +0000 |
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When deciding whether to dump the GUEST_IA32_EFER and GUEST_IA32_PAT fields of the VMCS, examine only the VM entry load controls, as saving on VM exit has no effect on whether VM entry succeeds or fails.
Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Edmondson <david.edmondson@oracle.com> --- arch/x86/kvm/vmx/vmx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 6ab9e4d69aac..67e574deced1 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5837,11 +5837,9 @@ void dump_vmcs(void) vmx_dump_sel("LDTR:", GUEST_LDTR_SELECTOR); vmx_dump_dtsel("IDTR:", GUEST_IDTR_LIMIT); vmx_dump_sel("TR: ", GUEST_TR_SELECTOR); - if ((vmexit_ctl & VM_EXIT_SAVE_IA32_EFER) || - (vmentry_ctl & VM_ENTRY_LOAD_IA32_EFER)) + if (vmentry_ctl & VM_ENTRY_LOAD_IA32_EFER) pr_err("EFER= 0x%016llx\n", vmcs_read64(GUEST_IA32_EFER)); - if ((vmexit_ctl & VM_EXIT_SAVE_IA32_PAT) || - (vmentry_ctl & VM_ENTRY_LOAD_IA32_PAT)) + if (vmentry_ctl & VM_ENTRY_LOAD_IA32_PAT) pr_err("PAT = 0x%016llx\n", vmcs_read64(GUEST_IA32_PAT)); pr_err("DebugCtl = 0x%016llx DebugExceptions = 0x%016lx\n", vmcs_read64(GUEST_IA32_DEBUGCTL), -- 2.30.2
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