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

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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>
This commit is contained in:
Sean Christopherson 2020-04-22 19:25:50 -07:00 committed by Paolo Bonzini
parent db43859280
commit 7ab0abdb55
1 changed files with 1 additions and 1 deletions
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arch/x86/kvm/vmx/vmx.c
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@ -4536,7 +4536,7 @@ bool vmx_interrupt_blocked(struct kvm_vcpu *vcpu)
if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu)) if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu))
return false; return false;
return !(vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) || return !(vmx_get_rflags(vcpu) & X86_EFLAGS_IF) ||
(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
(GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)); (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS));
} }