KVM: nVMX: Advertise IA32_PAT in VM exit control

Advertise VM_EXIT_SAVE_IA32_PAT and VM_EXIT_LOAD_IA32_PAT.

Signed-off-by: Arthur Chunqi Li <yzt356@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d9d0a94eb509b116a2ca3b82b8f07168dde4adb4..57b4e129891a6f2d1752988618a3202762bd0151 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2196,13 +2196,15 @@ static __init void nested_vmx_setup_ctls_msrs(void)
         * If bit 55 of VMX_BASIC is off, bits 0-8 and 10, 11, 13, 14, 16 and
         * 17 must be 1.
         */
+       rdmsr(MSR_IA32_VMX_EXIT_CTLS,
+               nested_vmx_exit_ctls_low, nested_vmx_exit_ctls_high);
        nested_vmx_exit_ctls_low = VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR;
        /* Note that guest use of VM_EXIT_ACK_INTR_ON_EXIT is not supported. */
+       nested_vmx_exit_ctls_high &=
 #ifdef CONFIG_X86_64
-       nested_vmx_exit_ctls_high = VM_EXIT_HOST_ADDR_SPACE_SIZE;
-#else
-       nested_vmx_exit_ctls_high = 0;
+               VM_EXIT_HOST_ADDR_SPACE_SIZE |
 #endif
+               VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT;
        nested_vmx_exit_ctls_high |= (VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR |
                                      VM_EXIT_LOAD_IA32_EFER);