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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-19 05:04:49 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-27 13:08:29 -0400 |
| commit | e7581caca4c105d81a490a3e15cf46d6407e3fa7 (patch) | |
| tree | 8b8bcd58bfb769ea864dc6631b018674a76addf6 /arch/x86/kvm/vmx/vmx.c | |
| parent | f4cfcd2d5aea4e96c5d483c476f3057b6b7baf6a (diff) | |
| download | lwn-e7581caca4c105d81a490a3e15cf46d6407e3fa7.tar.gz lwn-e7581caca4c105d81a490a3e15cf46d6407e3fa7.zip | |
KVM: x86: simplify is_mmio_spte
We can simply look at bits 52-53 to identify MMIO entries in KVM's page
tables. Therefore, there is no need to pass a mask to kvm_mmu_set_mmio_spte_mask.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 9b63ac8d97ee..65ff16f00c08 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -4147,8 +4147,7 @@ static void ept_set_mmio_spte_mask(void) * EPT Misconfigurations can be generated if the value of bits 2:0 * of an EPT paging-structure entry is 110b (write/execute). */ - kvm_mmu_set_mmio_spte_mask(VMX_EPT_RWX_MASK, - VMX_EPT_MISCONFIG_WX_VALUE, 0); + kvm_mmu_set_mmio_spte_mask(VMX_EPT_MISCONFIG_WX_VALUE, 0); } #define VMX_XSS_EXIT_BITMAP 0 |