From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Stefan Teodorescu <fane@google.com>
Subject: [PATCH 0/2] KVM: SEV: Fix intra-host migration cache bugs
Date: Wed, 23 Sep 2026 09:37:19 -0700 [thread overview]
Message-ID: <20260923163721.1584779-1-seanjc@google.com> (raw)
Fix a memory leak and a cache maintenance issue related to doing intra-host
migration on an SEV guest. TL;DR: the source VM becomes a non-SEV guest after
intra-host migration, and so KVM fails to do the right thing because its cache
maintenance stuff keys off sev_guest().
Sean Christopherson (2):
KVM: SEV: Free have_run_cpus during VM destruction even if VM is no
longer SEV
KVM: SEV: Do cache maintenance on the source VM during intra-host
migration
arch/x86/kvm/svm/sev.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
base-commit: 30b5175943e709911702d8a9364145e911f57e3f
--
2.55.0.1082.g2b9226bbc0-goog
next reply other threads:[~2026-09-23 16:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 16:37 Sean Christopherson [this message]
2026-09-23 16:37 ` [PATCH 1/2] KVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV Sean Christopherson
2026-09-23 16:37 ` [PATCH 2/2] KVM: SEV: Do cache maintenance on the source VM during intra-host migration Sean Christopherson
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