diff options
| author | Shaoqin Huang <shaoqin.huang@intel.com> | 2022-06-07 02:59:05 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-07 17:28:48 +0200 |
| commit | cf4a8693d97a51dccf5a1557248d12d6d8be4b9e (patch) | |
| tree | 24108ab0b194d57096d7be7438fcc4e0db366efc /arch | |
| parent | entry/kvm: Exit to user mode when TIF_NOTIFY_SIGNAL is set (diff) | |
| download | linux-cf4a8693d97a51dccf5a1557248d12d6d8be4b9e.tar.xz linux-cf4a8693d97a51dccf5a1557248d12d6d8be4b9e.zip | |
KVM: x86/mmu: Check every prev_roots in __kvm_mmu_free_obsolete_roots()
When freeing obsolete previous roots, check prev_roots as intended, not
the current root.
Signed-off-by: Shaoqin Huang <shaoqin.huang@intel.com>
Fixes: 527d5cd7eece ("KVM: x86/mmu: Zap only obsolete roots if a root shadow page is zapped")
Message-Id: <20220607005905.2933378-1-shaoqin.huang@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index efe5a3dca1e0..e46771e95191 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -5179,7 +5179,7 @@ static void __kvm_mmu_free_obsolete_roots(struct kvm *kvm, struct kvm_mmu *mmu) roots_to_free |= KVM_MMU_ROOT_CURRENT; for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) { - if (is_obsolete_root(kvm, mmu->root.hpa)) + if (is_obsolete_root(kvm, mmu->prev_roots[i].hpa)) roots_to_free |= KVM_MMU_ROOT_PREVIOUS(i); } |