[PATCH v4 35/38] KVM: x86/pmu: Expose enable_mediated_pmu parameter to user space

[Mingwei Zhang]

From: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>

Expose enable_mediated_pmu parameter to user space, then users can
enable/disable mediated vPMU on demand.

Signed-off-by: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
Signed-off-by: Mingwei Zhang <mizhang@xxxxxxxxxx>
---
 arch/x86/kvm/svm/svm.c | 2 ++
 arch/x86/kvm/vmx/vmx.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index bff351992468..a7ccac624dd3 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -265,6 +265,8 @@ module_param(intercept_smi, bool, 0444);
 bool vnmi = true;
 module_param(vnmi, bool, 0444);
 
+module_param(enable_mediated_pmu, bool, 0444);
+
 static bool svm_gp_erratum_intercept = true;
 
 static u8 rsm_ins_bytes[] = "\x0f\xaa";
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 7bb16bed08da..af9e7b917335 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -147,6 +147,8 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
 extern bool __read_mostly allow_smaller_maxphyaddr;
 module_param(allow_smaller_maxphyaddr, bool, S_IRUGO);
 
+module_param(enable_mediated_pmu, bool, 0444);
+
 #define KVM_VM_CR0_ALWAYS_OFF (X86_CR0_NW | X86_CR0_CD)
 #define KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST X86_CR0_NE
 #define KVM_VM_CR0_ALWAYS_ON				\
-- 
2.49.0.395.g12beb8f557-goog