[PATCH 5.13 013/351] KVM: SVM: remove INIT intercept handler

[Greg Kroah-Hartman]

From: Maxim Levitsky <mlevitsk@xxxxxxxxxx>

commit 896707c212d440a6863ce0a3930c8a609e24497d upstream.

Kernel never sends real INIT even to CPUs, other than on boot.

Thus INIT interception is an error which should be caught
by a check for an unknown VMexit reason.

On top of that, the current INIT VM exit handler skips
the current instruction which is wrong.
That was added in commit 5ff3a351f687 ("KVM: x86: Move trivial
instruction-based exit handlers to common code").

Fixes: 5ff3a351f687 ("KVM: x86: Move trivial instruction-based exit handlers to common code")
Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Message-Id: <20210707125100.677203-3-mlevitsk@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/x86/kvm/svm/svm.c |    1 -
 1 file changed, 1 deletion(-)

--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3069,7 +3069,6 @@ static int (*const svm_exit_handlers[])(
 	[SVM_EXIT_INTR]				= intr_interception,
 	[SVM_EXIT_NMI]				= nmi_interception,
 	[SVM_EXIT_SMI]				= smi_interception,
-	[SVM_EXIT_INIT]				= kvm_emulate_as_nop,
 	[SVM_EXIT_VINTR]			= interrupt_window_interception,
 	[SVM_EXIT_RDPMC]			= kvm_emulate_rdpmc,
 	[SVM_EXIT_CPUID]			= kvm_emulate_cpuid,