• Tom Lendacky's avatar
    x86/mm: Add support to make use of Secure Memory Encryption · aca20d54
    Tom Lendacky authored
    Add support to check if SME has been enabled and if memory encryption
    should be activated (checking of command line option based on the
    configuration of the default state).  If memory encryption is to be
    activated, then the encryption mask is set and the kernel is encrypted
    "in place."
    Signed-off-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
    Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Cc: Alexander Potapenko <glider@google.com>
    Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Brijesh Singh <brijesh.singh@amd.com>
    Cc: Dave Young <dyoung@redhat.com>
    Cc: Dmitry Vyukov <dvyukov@google.com>
    Cc: Jonathan Corbet <corbet@lwn.net>
    Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    Cc: Larry Woodman <lwoodman@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Matt Fleming <matt@codeblueprint.co.uk>
    Cc: Michael S. Tsirkin <mst@redhat.com>
    Cc: Paolo Bonzini <pbonzini@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Radim Krčmář <rkrcmar@redhat.com>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Toshimitsu Kani <toshi.kani@hpe.com>
    Cc: kasan-dev@googlegroups.com
    Cc: kvm@vger.kernel.org
    Cc: linux-arch@vger.kernel.org
    Cc: linux-doc@vger.kernel.org
    Cc: linux-efi@vger.kernel.org
    Cc: linux-mm@kvack.org
    Link: http://lkml.kernel.org/r/5f0da2fd4cce63f556117549e2c89c170072209f.1500319216.git.thomas.lendacky@amd.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    aca20d54
mem_encrypt.c 16.5 KB