x86/sev-es: Setup per-CPU GHCBs for the runtime handler

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The runtime handler needs one GHCB per-CPU. Set them up and map them
unencrypted.

 [ bp: Touchups and simplification. ]

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-42-joro@8bytes.org

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Tom Lendacky 2020-09-07 15:15:42 +02:00 • committed by Borislav Petkov

parent 1aa9aa8ee5

commit 885689e47d

3 changed files with 60 additions and 1 deletions

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2

arch/x86/include/asm/mem_encrypt.h

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56

arch/x86/kernel/sev-es.c

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3

arch/x86/kernel/traps.c

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