| Message ID | 20190424231724.2014-3-krish.sadhukhan@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/8,KVMnVMX] : Enable "load IA32_PERF_GLOBAL_CTRL" VM-exit control for nested guests | expand |
On Wed, Apr 24, 2019 at 07:17:18PM -0400, Krish Sadhukhan wrote: > Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com> > Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com> > --- > arch/x86/kvm/vmx/nested.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c > index 42a4deb662c6..83cd887638cb 100644 > --- a/arch/x86/kvm/vmx/nested.c > +++ b/arch/x86/kvm/vmx/nested.c > @@ -5511,7 +5511,8 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps, > #endif > VM_ENTRY_LOAD_IA32_PAT; > msrs->entry_ctls_high |= > - (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER); > + (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER | > + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL); Same comments as the VM-Exit patch. > > /* We support free control of debug control loading. */ > msrs->entry_ctls_low &= ~VM_ENTRY_LOAD_DEBUG_CONTROLS; > -- > 2.17.2 >
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 42a4deb662c6..83cd887638cb 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -5511,7 +5511,8 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps, #endif VM_ENTRY_LOAD_IA32_PAT; msrs->entry_ctls_high |= - (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER); + (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER | + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL); /* We support free control of debug control loading. */ msrs->entry_ctls_low &= ~VM_ENTRY_LOAD_DEBUG_CONTROLS;