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| author |   Lai Jiangshan <laijs@linux.alibaba.com> | 2021-10-19 19:01:54 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2021-10-22 05:44:43 -0400 |
| commit | 61b05a9fd4aec2dff0bbdf9d16ee000b24b33f41 (patch) | |
| tree | 62324710cacf6fecbc17aa06853bcd82c5d47c4e /arch/x86/kvm/mmu.h | |
| parent | KVM: X86: pair smp_wmb() of mmu_try_to_unsync_pages() with smp_rmb() (diff) | |
| download | linux-dev-61b05a9fd4aec2dff0bbdf9d16ee000b24b33f41.tar.xz linux-dev-61b05a9fd4aec2dff0bbdf9d16ee000b24b33f41.zip | |
KVM: X86: Don't unload MMU in kvm_vcpu_flush_tlb_guest()
kvm_mmu_unload() destroys all the PGD caches. Use the lighter
kvm_mmu_sync_roots() and kvm_mmu_sync_prev_roots() instead.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20211019110154.4091-5-jiangshanlai@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.h')
| -rw-r--r-- | arch/x86/kvm/mmu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 3456f4d0eaeb..9ae6168d381e 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -79,6 +79,7 @@ int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code, int kvm_mmu_load(struct kvm_vcpu *vcpu); void kvm_mmu_unload(struct kvm_vcpu *vcpu); void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); +void kvm_mmu_sync_prev_roots(struct kvm_vcpu *vcpu); static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) { |