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x86/sev-es: Handle INVD Events

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Implement a handler for #VC exceptions caused by INVD instructions.
Since Linux should never use INVD, just mark it as unsupported.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
[ jroedel@suse.de: Adapt to #VC handling infrastructure ]
Co-developed-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-57-joro@8bytes.org
This commit is contained in:
Tom Lendacky 2020-09-07 15:15:57 +02:00 committed by Borislav Petkov
parent 5d55cf78a8
commit 8b4ce83707
1 changed files with 4 additions and 0 deletions
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4
arch/x86/kernel/sev-es.c
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@ -892,6 +892,10 @@ static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt,
case SVM_EXIT_RDPMC:
result = vc_handle_rdpmc(ghcb, ctxt);
break;
case SVM_EXIT_INVD:
pr_err_ratelimited("#VC exception for INVD??? Seriously???\n");
result = ES_UNSUPPORTED;
break;
case SVM_EXIT_CPUID:
result = vc_handle_cpuid(ghcb, ctxt);
break;