Some Type 1 hypervisors such as XEN won't enable VMX without it present
Signed-off-by: Bandan Das <b...@redhat.com>
---
arch/x86/kvm/vmx.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5c0b74d..7bed3e3 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2283,7 +2283,7 @@ static __init void nested_vmx_setup_ctls_msrs(void)
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
VM_EXIT_HOST_ADDR_SPACE_SIZE |
@@ -2291,7 +2291,8 @@ static __init void nested_vmx_setup_ctls_msrs(void)
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 | VM_EXIT_SAVE_IA32_EFER |
- VM_EXIT_SAVE_VMX_PREEMPTION_TIMER;
+ VM_EXIT_SAVE_VMX_PREEMPTION_TIMER | VM_EXIT_ACK_INTR_ON_EXIT;
+
if (vmx_mpx_supported())
nested_vmx_exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS;
--
1.8.3.1
--
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