x86/mm: Extend cc_attr to include AMD SEV-SNP

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The CC_ATTR_GUEST_SEV_SNP can be used by the guest to query whether the
SNP (Secure Nested Paging) feature is active.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220307213356.2797205-10-brijesh.singh@amd.com

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Brijesh Singh 2022-02-24 10:55:49 -06:00 • committed by Borislav Petkov

parent bcce829083

commit f742b90e61

4 changed files with 17 additions and 0 deletions

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3

arch/x86/coco/core.c

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2

arch/x86/include/asm/msr-index.h

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4

arch/x86/mm/mem_encrypt.c

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8

include/linux/cc_platform.h

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