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Commit e0ba1a6f authored by Bandan Das's avatar Bandan Das Committed by Marcelo Tosatti
Browse files

KVM: nVMX: Advertise support for interrupt acknowledgement 



Some Type 1 hypervisors such as XEN won't enable VMX without it present

Signed-off-by: default avatarBandan Das <bsd@redhat.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 77b0f5d6

arch/x86/kvm/vmx.c

+3 −2
Original line number Diff line number Diff line
@@ -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;