Merge branch into tip/master: 'x86/sev'

Merge branch into tip/master: 'x86/sev'

* x86/sev:
    20f07a044a76 x86/sev: Move common memory encryption code to mem_encrypt.c
    dbca5e1a04f8 x86/sev: Rename mem_encrypt.c to mem_encrypt_amd.c
    8260b9820f70 x86/sev: Use CC_ATTR attribute to generalize string I/O unroll
    75cc9a84c9eb x86/sev: Remove do_early_exception() forward declarations
    5ed0a99b12aa x86/head64: Carve out the guest encryption postprocessing into a helper
    dbc4c70e3cdf x86/sev: Get rid of excessive use of defines
    18c3933c1983 x86/sev: Shorten GHCB terminate macro names

Signed-off-by: Ingo Molnar <mingo@kernel.org>