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| author |  Sean Christopherson <seanjc@google.com>
| 2022-10-19 16:56:18 +0000 |
|---|---|---|
| committer |  Paolo Bonzini <pbonzini@redhat.com>
| 2022-11-09 12:31:34 -0500 |
| commit | 3a05675722250a522c148f6de0cc190f407c4bb5 (patch) | |
| tree | e953808a089b6e7b2295d858f0faa4c5236663be /arch/x86/kvm/pmu.c | |
| parent | KVM: x86/mmu: explicitly check nx_hugepage in disallowed_hugepage_adjust() (diff) | |
| download | linux-3a05675722250a522c148f6de0cc190f407c4bb5.tar.gz linux-3a05675722250a522c148f6de0cc190f407c4bb5.tar.bz2 linux-3a05675722250a522c148f6de0cc190f407c4bb5.zip | |
KVM: x86/mmu: WARN if TDP MMU SP disallows hugepage after being zapped
Extend the accounting sanity check in kvm_recover_nx_huge_pages() to the
TDP MMU, i.e. verify that zapping a shadow page unaccounts the disallowed
NX huge page regardless of the MMU type. Recovery runs while holding
mmu_lock for write and so it should be impossible to get false positives
on the WARN.
Suggested-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221019165618.927057-9-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/pmu.c')
0 files changed, 0 insertions, 0 deletions