Re: [PATCH v6 04/34] x86/CPU/AMD: Add the Secure Memory Encryption CPU feature

2017-06-09 Thread Borislav Petkov
On Wed, Jun 07, 2017 at 02:13:53PM -0500, Tom Lendacky wrote: > Update the CPU features to include identifying and reporting on the > Secure Memory Encryption (SME) feature. SME is identified by CPUID > 0x801f, but requires BIOS support to enable it (set bit 23 of > MSR_K8_SYSCFG). Only show

[PATCH v6 04/34] x86/CPU/AMD: Add the Secure Memory Encryption CPU feature

2017-06-07 Thread Tom Lendacky
Update the CPU features to include identifying and reporting on the Secure Memory Encryption (SME) feature. SME is identified by CPUID 0x801f, but requires BIOS support to enable it (set bit 23 of MSR_K8_SYSCFG). Only show the SME feature as available if reported by CPUID and enabled by BIOS.