Commit 7ab0abdb authored Apr 22, 2020 by Sean Christopherson Committed by Paolo Bonzini May 13, 2020

KVM: VMX: Use vmx_get_rflags() to query RFLAGS in vmx_interrupt_blocked()

Use vmx_get_rflags() instead of manually reading vmcs.GUEST_RFLAGS when
querying RFLAGS.IF so that multiple checks against interrupt blocking in
a single run loop only require a single VMREAD.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200423022550.15113-14-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent db438592

arch/x86/kvm/vmx/vmx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -4536,7 +4536,7 @@ bool vmx_interrupt_blocked(struct kvm_vcpu *vcpu)
		if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu))
		return false;

		return !(vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) \|\|
		return !(vmx_get_rflags(vcpu) & X86_EFLAGS_IF) \|\|
		(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
		(GUEST_INTR_STATE_STI \| GUEST_INTR_STATE_MOV_SS));
		}

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