linux-kernel - [PATCH 0/2] KVM: x86: Fastpath accounting fixes

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Message-ID: <20230602011920.787844-1-seanjc@google.com>
Date:   Thu,  1 Jun 2023 18:19:18 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] KVM: x86: Fastpath accounting fixes

Fix two bugs where KVM fails to account/trace exits that are handled
in the super fast fastpath.  SVM doesn't actually utilize the super fast
fastpath, i.e. patch 1 only affects VMX and the bug fixed by patch 2 is
benign in the current code base.

Found by inspection, confirmed by hacking together a small selftest and
manually verifying the stats via sysfs.

Sean Christopherson (2):
  KVM: x86: Account fastpath-only VM-Exits in vCPU stats
  KVM: SVM: Invoke trace_kvm_exit() for fastpath VM-Exits

 arch/x86/kvm/svm/svm.c | 4 ++--
 arch/x86/kvm/x86.c     | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

base-commit: 39428f6ea9eace95011681628717062ff7f5eb5f
-- 
2.41.0.rc2.161.g9c6817b8e7-goog