Messages in this thread | | | Subject | Re: [PATCH 1/5] KVM: nVMX: Fix VMX controls MSRs setup when nested VMX enabled | From | Xiaoyao Li <> | Date | Tue, 1 Sep 2020 11:27:29 +0800 |
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On 8/28/2020 4:56 PM, Chenyi Qiang wrote: > KVM supports the nested VM_{EXIT, ENTRY}_LOAD_IA32_PERF_GLOBAL_CTRL and > VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS, but they doesn't expose during > the setup of nested VMX controls MSR. > > Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
> --- > arch/x86/kvm/vmx/nested.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c > index 23b58c28a1c9..6e0e71f4d45f 100644 > --- a/arch/x86/kvm/vmx/nested.c > +++ b/arch/x86/kvm/vmx/nested.c > @@ -6310,7 +6310,8 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps) > #ifdef CONFIG_X86_64 > VM_EXIT_HOST_ADDR_SPACE_SIZE | > #endif > - VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT; > + VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT | > + VM_EXIT_CLEAR_BNDCFGS | VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL; > msrs->exit_ctls_high |= > VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR | > VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER | > @@ -6329,7 +6330,8 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps) > #ifdef CONFIG_X86_64 > VM_ENTRY_IA32E_MODE | > #endif > - VM_ENTRY_LOAD_IA32_PAT; > + VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS | > + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL; > msrs->entry_ctls_high |= > (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER); > >
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