On 06/03/2016 08:15, Xiao Guangrong wrote: >> + /* cpuid 7.0.ecx*/ >> + const u32 kvm_supported_word11_x86_features = F(PKU) | 0 /*OSPKE*/; >> + >> >> cpuid_mask(&entry->ebx, 9); >> // TSC_ADJUST is emulated >> entry->ebx |= F(TSC_ADJUST); >> - } else >> + entry->ecx &= kvm_supported_word11_x86_features; >> + cpuid_mask(&entry->ecx, 13); > > Can we use a meaningful name defined by cpuid_leafs instead of the raw > number? This is not a cpuid leaf number, it's the Linux feature word number. In other words, the "11" in kvm_supported_word11_x86_features should have matched the "13" in cpuid_mask(&entry->ecx, 13). However, looking at http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/arch/x86/include/asm/cpufeatures.h I see that all word numbers until 15 are taken, and PKE is not found anywhere. What's going on? Thanks, Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
