From: Tom Lendacky <thomas.lendacky@xxxxxxx>
Implement a handler for #VC exceptions caused by INVD instructions.
Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
[ jroedel@xxxxxxx: Adapt to #VC handling infrastructure ]
Co-developed-by: Joerg Roedel <jroedel@xxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
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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