From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 29 Sep 2022 17:20:16 +0000 (-0400)
Subject: KVM: x86: do not define KVM_REQ_SMI if SMM disabled
X-Git-Tag: v6.6.17~5910^2~162
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cf7316d0361c5d3289611402b5ac0c64c918b20b;p=platform%2Fkernel%2Flinux-rpi.git

KVM: x86: do not define KVM_REQ_SMI if SMM disabled

This ensures that all the relevant code is compiled out, in fact
the process_smi stub can be removed too.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220929172016.319443-9-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b9f6f854dcef..24a2152a77cd 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -81,7 +81,9 @@
 #define KVM_REQ_NMI			KVM_ARCH_REQ(9)
 #define KVM_REQ_PMU			KVM_ARCH_REQ(10)
 #define KVM_REQ_PMI			KVM_ARCH_REQ(11)
+#ifdef CONFIG_KVM_SMM
 #define KVM_REQ_SMI			KVM_ARCH_REQ(12)
+#endif
 #define KVM_REQ_MASTERCLOCK_UPDATE	KVM_ARCH_REQ(13)
 #define KVM_REQ_MCLOCK_INPROGRESS \
 	KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
diff --git a/arch/x86/kvm/smm.h b/arch/x86/kvm/smm.h
index 8debe81494c6..53c81394ebdb 100644
--- a/arch/x86/kvm/smm.h
+++ b/arch/x86/kvm/smm.h
@@ -27,7 +27,6 @@ void process_smi(struct kvm_vcpu *vcpu);
 #else
 static inline int kvm_inject_smi(struct kvm_vcpu *vcpu) { return -ENOTTY; }
 static inline bool is_smm(struct kvm_vcpu *vcpu) { return false; }
-static inline void process_smi(struct kvm_vcpu *vcpu) { WARN_ON_ONCE(1); }
 
 /*
  * emulator_leave_smm is used as a function pointer, so the
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9ac51c848fc8..73c32030d514 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5026,8 +5026,10 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
 
 	process_nmi(vcpu);
 
+#ifdef CONFIG_KVM_SMM
 	if (kvm_check_request(KVM_REQ_SMI, vcpu))
 		process_smi(vcpu);
+#endif
 
 	/*
 	 * KVM's ABI only allows for one exception to be migrated.  Luckily,
@@ -10266,8 +10268,10 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		}
 		if (kvm_check_request(KVM_REQ_STEAL_UPDATE, vcpu))
 			record_steal_time(vcpu);
+#ifdef CONFIG_KVM_SMM
 		if (kvm_check_request(KVM_REQ_SMI, vcpu))
 			process_smi(vcpu);
+#endif
 		if (kvm_check_request(KVM_REQ_NMI, vcpu))
 			process_nmi(vcpu);
 		if (kvm_check_request(KVM_REQ_PMU, vcpu))
@@ -12628,7 +12632,9 @@ bool kvm_arch_dy_runnable(struct kvm_vcpu *vcpu)
 		return true;
 
 	if (kvm_test_request(KVM_REQ_NMI, vcpu) ||
+#ifdef CONFIG_KVM_SMM
 		kvm_test_request(KVM_REQ_SMI, vcpu) ||
+#endif
 		 kvm_test_request(KVM_REQ_EVENT, vcpu))
 		return true;