On Tue, Jun 26, 2018 at 05:30:12PM +0000, Randy Dunlap wrote: > On 06/26/2018 07:22 AM, Kirill A. Shutemov wrote: > > Add new config option to enabled/disable Multi-Key Total Memory > > Encryption support. > > > > MKTME uses MEMORY_PHYSICAL_PADDING to reserve enough space in per-KeyID > > direct mappings for memory hotplug. > > > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > --- > > arch/x86/Kconfig | 19 ++++++++++++++++++- > > 1 file changed, 18 insertions(+), 1 deletion(-) > > > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > > index fa5e1ec09247..9a843bd63108 100644 > > --- a/arch/x86/Kconfig > > +++ b/arch/x86/Kconfig > > @@ -1523,6 +1523,23 @@ config ARCH_USE_MEMREMAP_PROT > > def_bool y > > depends on AMD_MEM_ENCRYPT > > > > +config X86_INTEL_MKTME > > + bool "Intel Multi-Key Total Memory Encryption" > > + select DYNAMIC_PHYSICAL_MASK > > + select PAGE_EXTENSION > > + depends on X86_64 && CPU_SUP_INTEL > > + ---help--- > > + Say yes to enable support for Multi-Key Total Memory Encryption. > > + This requires an Intel processor that has support of the feature. > > + > > + Multikey Total Memory Encryption (MKTME) is a technology that allows > > + transparent memory encryption in and upcoming Intel platforms. > > huh? Maybe drop the "and"? Ugh.. It has to be "an". -- Kirill A. Shutemov
