Use the recently added IA32_FEATURE_CONTROL MSR initialization sequence to opportunstically enable VMX support when running on a Centaur CPU. Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> --- arch/x86/Kconfig.cpu | 2 +- arch/x86/kernel/cpu/centaur.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index aafc14a0abf7..9e4e41424dc2 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -389,7 +389,7 @@ config X86_DEBUGCTLMSR config X86_FEATURE_CONTROL_MSR def_bool y - depends on CPU_SUP_INTEL + depends on CPU_SUP_INTEL || CPU_SUP_CENTAUR menuconfig PROCESSOR_SELECT bool "Supported processor vendors" if EXPERT diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index 14433ff5b828..a6ca4c31c1b6 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -250,6 +250,8 @@ static void init_centaur(struct cpuinfo_x86 *c) set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC); #endif + init_feature_control_msr(c); + if (cpu_has(c, X86_FEATURE_VMX)) centaur_detect_vmx_virtcap(c); } -- 2.24.0
