linux-kernel - [PATCH 23/30] KVM: nSVM: remove HF_HIF

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Date:   Fri, 29 May 2020 11:39:27 -0400
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [PATCH 23/30] KVM: nSVM: remove HF_HIF_MASK

The L1 flags can be found in the save area of svm->nested.hsave, fish
it from there so that there is one fewer thing to migrate.

Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
 arch/x86/include/asm/kvm_host.h | 1 -
 arch/x86/kvm/svm/nested.c       | 5 -----
 arch/x86/kvm/svm/svm.c          | 2 +-
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 0dfc522f96cc..3485f8454088 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1595,7 +1595,6 @@ enum {
 };
 
 #define HF_GIF_MASK		(1 << 0)
-#define HF_HIF_MASK		(1 << 1)
 #define HF_NMI_MASK		(1 << 3)
 #define HF_IRET_MASK		(1 << 4)
 #define HF_GUEST_MASK		(1 << 5) /* VCPU is in guest-mode */
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 6967fe884eaf..65ecc8586f75 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -371,11 +371,6 @@ void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
 			  struct vmcb *nested_vmcb)
 {
 	svm->nested.vmcb = vmcb_gpa;
-	if (kvm_get_rflags(&svm->vcpu) & X86_EFLAGS_IF)
-		svm->vcpu.arch.hflags |= HF_HIF_MASK;
-	else
-		svm->vcpu.arch.hflags &= ~HF_HIF_MASK;
-
 	load_nested_vmcb_control(svm, &nested_vmcb->control);
 	nested_prepare_vmcb_save(svm, nested_vmcb);
 	nested_prepare_vmcb_control(svm);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 6867dba4f736..bc08221f6743 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3105,7 +3105,7 @@ bool svm_interrupt_blocked(struct kvm_vcpu *vcpu)
 	if (is_guest_mode(vcpu)) {
 		/* As long as interrupts are being delivered...  */
 		if ((svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK)
-		    ? !(svm->vcpu.arch.hflags & HF_HIF_MASK)
+		    ? !(svm->nested.hsave->save.rflags & X86_EFLAGS_IF)
 		    : !(kvm_get_rflags(vcpu) & X86_EFLAGS_IF))
 			return true;
 
-- 
2.26.2