From: Maxim Levitsky <mlevitsk@redhat.com>
To: kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
Chenyi Qiang <chenyi.qiang@intel.com>,
Yang Zhong <yang.zhong@intel.com>,
x86@kernel.org, Shuah Khan <shuah@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Maxim Levitsky <mlevitsk@redhat.com>,
Colton Lewis <coltonlewis@google.com>,
Borislav Petkov <bp@alien8.de>, Peter Xu <peterx@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Jim Mattson <jmattson@google.com>,
linux-kselftest@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Wei Wang <wei.w.wang@intel.com>,
David Matlack <dmatlack@google.com>,
stable@vger.kernel.org
Subject: [PATCH v2 1/9] KVM: x86: nSVM: leave nested mode on vCPU free
Date: Thu, 3 Nov 2022 16:13:43 +0200 [thread overview]
Message-ID: <20221103141351.50662-2-mlevitsk@redhat.com> (raw)
In-Reply-To: <20221103141351.50662-1-mlevitsk@redhat.com>
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@vger.kernel.org
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
arch/x86/kvm/svm/svm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index d22a809d923339..e9cec1b692051c 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1440,6 +1440,7 @@ static void svm_vcpu_free(struct kvm_vcpu *vcpu)
*/
svm_clear_current_vmcb(svm->vmcb);
+ svm_leave_nested(vcpu);
svm_free_nested(svm);
sev_free_vcpu(vcpu);
--
2.34.3
next prev parent reply other threads:[~2022-11-03 14:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-03 14:13 [PATCH v2 0/9] nSVM: Security and correctness fixes Maxim Levitsky
2022-11-03 14:13 ` Maxim Levitsky [this message]
2022-11-21 16:30 ` [PATCH v2 1/9] KVM: x86: nSVM: leave nested mode on vCPU free Liam Merwick
2022-11-03 14:13 ` [PATCH v2 2/9] KVM: x86: nSVM: harden svm_free_nested against freeing vmcb02 while still in use Maxim Levitsky
2022-11-21 16:30 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 3/9] KVM: x86: add kvm_leave_nested Maxim Levitsky
2022-11-21 16:31 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 4/9] KVM: x86: forcibly leave nested mode on vCPU reset Maxim Levitsky
2022-11-21 16:31 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 5/9] KVM: selftests: move idt_entry to header Maxim Levitsky
2022-11-21 16:32 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 6/9] kvm: selftests: add svm nested shutdown test Maxim Levitsky
2022-11-03 14:28 ` Maxim Levitsky
2022-11-21 16:33 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 7/9] KVM: x86: allow L1 to not intercept triple fault Maxim Levitsky
2022-11-21 16:33 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 8/9] KVM: selftests: add svm part to triple_fault_test Maxim Levitsky
2022-11-21 16:34 ` Liam Merwick
2022-11-03 14:13 ` [PATCH v2 9/9] KVM: x86: remove exit_int_info warning in svm_handle_exit Maxim Levitsky
2022-11-06 15:53 ` Liam Merwick
2022-11-09 9:15 ` Maxim Levitsky
2022-11-21 16:34 ` Liam Merwick
2022-11-15 14:55 ` [PATCH v2 0/9] nSVM: Security and correctness fixes Maxim Levitsky
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