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x86/sev-es: Use GHCB accessor for setting the MMIO scratch buffer
authorTom Lendacky <thomas.lendacky@amd.com>
Fri, 25 Sep 2020 13:38:26 +0000 (08:38 -0500)
committerBorislav Petkov <bp@suse.de>
Fri, 25 Sep 2020 15:12:41 +0000 (17:12 +0200)
commit0ddfb1cf3b6b07c97cff16ea69931d986f9622ee
tree1381fe44d01716e7a05bb15687e3797f844ce5d8tree
parentf5ed777586e08e09c4b6f1e87161a145ee1431cfcommit | diff
x86/sev-es: Use GHCB accessor for setting the MMIO scratch buffer

Use ghcb_set_sw_scratch() to set the GHCB scratch field, which will also
set the corresponding bit in the GHCB valid_bitmap field to denote that
sw_scratch is actually valid.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/ba84deabdf44a7a880454fb351d189c6ad79d4ba.1601041106.git.thomas.lendacky@amd.com
arch/x86/kernel/sev-es.c diff | blob | history
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