On 11/19/2024 11:43 PM, Sean Christopherson wrote:
> On Thu, Aug 01, 2024, Mingwei Zhang wrote:
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index 0c40f551130e..6db4dc496d2b 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -239,6 +239,9 @@ EXPORT_SYMBOL_GPL(host_xss);
>> u64 __read_mostly host_arch_capabilities;
>> EXPORT_SYMBOL_GPL(host_arch_capabilities);
>>
>> +u64 __read_mostly host_perf_cap;
>> +EXPORT_SYMBOL_GPL(host_perf_cap);
> In case you don't get a conflict on rebase, this should go in "struct kvm_host_values"
> as "perf_capabilities".
Sure. Thanks.
>
>> const struct _kvm_stats_desc kvm_vm_stats_desc[] = {
>> KVM_GENERIC_VM_STATS(),
>> STATS_DESC_COUNTER(VM, mmu_shadow_zapped),
>> @@ -9793,6 +9796,9 @@ int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops)
>> if (boot_cpu_has(X86_FEATURE_ARCH_CAPABILITIES))
>> rdmsrl(MSR_IA32_ARCH_CAPABILITIES, host_arch_capabilities);
>>
>> + if (boot_cpu_has(X86_FEATURE_PDCM))
>> + rdmsrl(MSR_IA32_PERF_CAPABILITIES, host_perf_cap);
>> +
>> r = ops->hardware_setup();
>> if (r != 0)
>> goto out_mmu_exit;
>> --
>> 2.46.0.rc1.232.g9752f9e123-goog
>>
