From: Tom Lendacky <thomas.lenda...@amd.com>

Implement a handler for #VC exceptions caused by INVD instructions.

Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com>
[ jroe...@suse.de: Adapt to #VC handling infrastructure ]
Co-developed-by: Joerg Roedel <jroe...@suse.de>
Signed-off-by: Joerg Roedel <jroe...@suse.de>
---
 arch/x86/kernel/sev-es.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index e96332516c2a..485f5a14c3b4 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -308,6 +308,11 @@ static enum es_result handle_rdpmc(struct ghcb *ghcb, 
struct es_em_ctxt *ctxt)
        return ES_OK;
 }
 
+static enum es_result handle_invd(struct ghcb *ghcb, struct es_em_ctxt *ctxt)
+{
+       return ghcb_hv_call(ghcb, ctxt, SVM_EXIT_INVD, 0, 0);
+}
+
 static enum es_result handle_vc_exception(struct es_em_ctxt *ctxt,
                                          struct ghcb *ghcb,
                                          unsigned long exit_code,
@@ -328,6 +333,9 @@ static enum es_result handle_vc_exception(struct es_em_ctxt 
*ctxt,
        case SVM_EXIT_RDPMC:
                result = handle_rdpmc(ghcb, ctxt);
                break;
+       case SVM_EXIT_INVD:
+               result = handle_invd(ghcb, ctxt);
+               break;
        case SVM_EXIT_CPUID:
                result = handle_cpuid(ghcb, ctxt);
                break;
-- 
2.17.1

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