diff options
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f18c2d8c7476..733a0c45d1a6 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7659,13 +7659,11 @@ u8 vmx_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio) /* * Force WB and ignore guest PAT if the VM does NOT have a non-coherent - * device attached and the CPU doesn't support self-snoop. Letting the - * guest control memory types on Intel CPUs without self-snoop may - * result in unexpected behavior, and so KVM's (historical) ABI is to - * trust the guest to behave only as a last resort. + * device attached. Letting the guest control memory types on Intel + * CPUs may result in unexpected behavior, and so KVM's ABI is to trust + * the guest to behave only as a last resort. */ - if (!static_cpu_has(X86_FEATURE_SELFSNOOP) && - !kvm_arch_has_noncoherent_dma(vcpu->kvm)) + if (!kvm_arch_has_noncoherent_dma(vcpu->kvm)) return (MTRR_TYPE_WRBACK << VMX_EPT_MT_EPTE_SHIFT) | VMX_EPT_IPAT_BIT; return (MTRR_TYPE_WRBACK << VMX_EPT_MT_EPTE_SHIFT); |