On Thu, Feb 16, 2017 at 09:42:36AM -0600, Tom Lendacky wrote: > Update the CPU features to include identifying and reporting on the > Secure Memory Encryption (SME) feature. SME is identified by CPUID > 0x8000001f, but requires BIOS support to enable it (set bit 23 of > SYS_CFG MSR). Only show the SME feature as available if reported by > CPUID and enabled by BIOS. > > Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx> > --- > arch/x86/include/asm/cpufeature.h | 7 +++++-- > arch/x86/include/asm/cpufeatures.h | 5 ++++- > arch/x86/include/asm/disabled-features.h | 3 ++- > arch/x86/include/asm/msr-index.h | 2 ++ > arch/x86/include/asm/required-features.h | 3 ++- > arch/x86/kernel/cpu/common.c | 19 +++++++++++++++++++ > 6 files changed, 34 insertions(+), 5 deletions(-) What happened here? You had it already: https://lkml.kernel.org/r/20161110003459.3280.25796.stgit@xxxxxxxxxxxxxxxxxxxxxxxxx The bit in get_cpu_cap() with checking the MSR you can add at the end of init_amd() for example. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.
