This is a note to let you know that I've just added the patch titled
KVM: x86: nSVM: leave nested mode on vCPU free
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-x86-nsvm-leave-nested-mode-on-vcpu-free.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 917401f26a6af5756d89b550a8e1bd50cf42b07e Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Date: Thu, 3 Nov 2022 16:13:43 +0200
Subject: KVM: x86: nSVM: leave nested mode on vCPU free
From: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
commit 917401f26a6af5756d89b550a8e1bd50cf42b07e upstream.
If the VM was terminated while nested, we free the nested state
while the vCPU still is in nested mode.
Soon a warning will be added for this condition.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Message-Id: <20221103141351.50662-2-mlevitsk@xxxxxxxxxx>
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 insertion(+)
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1357,6 +1357,7 @@ static void svm_free_vcpu(struct kvm_vcp
*/
svm_clear_current_vmcb(svm->vmcb);
+ svm_leave_nested(vcpu);
svm_free_nested(svm);
__free_page(pfn_to_page(__sme_clr(svm->vmcb_pa) >> PAGE_SHIFT));
Patches currently in stable-queue which might be from mlevitsk@xxxxxxxxxx are
queue-5.10/kvm-x86-emulator-update-the-emulation-mode-after-rsm.patch
queue-5.10/kvm-x86-nsvm-leave-nested-mode-on-vcpu-free.patch
queue-5.10/kvm-x86-remove-exit_int_info-warning-in-svm_handle_exit.patch
