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authorBandan Das <bsd@redhat.com>2014-04-19 18:17:46 -0400
committerMarcelo Tosatti <mtosatti@redhat.com>2014-04-22 18:41:34 -0300
commite0ba1a6ffcfe8dc95586943bbe56badb1459bf25 (patch)
treeab05c39577d1386956576ed68e478661391679c2 /arch/x86/kvm
parent77b0f5d67ff2781f36831cba79674c3e97bd7acf (diff)
downloadlinux-e0ba1a6ffcfe8dc95586943bbe56badb1459bf25.tar.bz2
KVM: nVMX: Advertise support for interrupt acknowledgement
Some Type 1 hypervisors such as XEN won't enable VMX without it present Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/vmx.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4378014a41a9..72b8012991b9 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;