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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-09-25 15:38:26 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-25 17:12:41 +0200 |
| commit | 0ddfb1cf3b6b07c97cff16ea69931d986f9622ee (patch) | |
| tree | 1381fe44d01716e7a05bb15687e3797f844ce5d8 /arch | |
| parent | x86/sev-es: Check required CPU features for SEV-ES (diff) | |
| download | linux-0ddfb1cf3b6b07c97cff16ea69931d986f9622ee.tar.xz linux-0ddfb1cf3b6b07c97cff16ea69931d986f9622ee.zip | |
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
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/sev-es.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c index 6fcfdd32769f..4a96726fbaf8 100644 --- a/arch/x86/kernel/sev-es.c +++ b/arch/x86/kernel/sev-es.c @@ -751,7 +751,7 @@ static enum es_result vc_do_mmio(struct ghcb *ghcb, struct es_em_ctxt *ctxt, /* Can never be greater than 8 */ exit_info_2 = bytes; - ghcb->save.sw_scratch = ghcb_pa + offsetof(struct ghcb, shared_buffer); + ghcb_set_sw_scratch(ghcb, ghcb_pa + offsetof(struct ghcb, shared_buffer)); return sev_es_ghcb_hv_call(ghcb, ctxt, exit_code, exit_info_1, exit_info_2); } |