KVM: Enable MTRR for EPT

The effective memory type of EPT is the mixture of MSR_IA32_CR_PAT and memory
type field of EPT entry.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index b4c95a501cca..dae134fa09e7 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3574,6 +3574,11 @@ static int get_ept_level(void)
         return VMX_EPT_DEFAULT_GAW + 1;
 }
 
+static int vmx_get_mt_mask_shift(void)
+{
+        return VMX_EPT_MT_EPTE_SHIFT;
+}
+
 static struct kvm_x86_ops vmx_x86_ops = {
         .cpu_has_kvm_support = cpu_has_kvm_support,
         .disabled_by_bios = vmx_disabled_by_bios,
@@ -3629,6 +3634,7 @@ static struct kvm_x86_ops vmx_x86_ops = {
 
         .set_tss_addr = vmx_set_tss_addr,
         .get_tdp_level = get_ept_level,
+        .get_mt_mask_shift = vmx_get_mt_mask_shift,
 };
 
 static int __init vmx_init(void)
@@ -3685,10 +3691,10 @@ static int __init vmx_init(void)
                 bypass_guest_pf = 0;
                 kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
                         VMX_EPT_WRITABLE_MASK |
-                        VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT |
                         VMX_EPT_IGMT_BIT);
                 kvm_mmu_set_mask_ptes(0ull, 0ull, 0ull, 0ull,
-                                VMX_EPT_EXECUTABLE_MASK);
+                                VMX_EPT_EXECUTABLE_MASK,
+                                VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
                 kvm_enable_tdp();
         } else
                 kvm_disable_tdp();