KVM: SVM: remove INIT intercept handler

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@redhat.com>
Message-Id: <20210707125100.677203-3-mlevitsk@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 80790faf6370d2bcf4251fcedf62382ee7900ae8..18aa4d45cc64a4f33516ab59b1b510e3473508fe 100644 (file)
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3086,7 +3086,6 @@ static int (*const svm_exit_handlers[])(struct kvm_vcpu *vcpu) = {
        [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,