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    Subject[PATCH v3 58/75] x86/sev-es: Handle INVD Events
    Date
    From: Tom Lendacky <thomas.lendacky@amd.com>

    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>
    ---
    arch/x86/kernel/sev-es.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
    index eb158781238b..601554e6360f 100644
    --- a/arch/x86/kernel/sev-es.c
    +++ b/arch/x86/kernel/sev-es.c
    @@ -844,6 +844,10 @@ 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;
    --
    2.17.1
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