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[v3,2/2] target-i386/kvm: Hyper-V VMBus hypercalls blank handlers

Message ID 1456309368-29769-2-git-send-email-asmetanin@virtuozzo.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andrey Smetanin Feb. 24, 2016, 10:22 a.m. UTC 
Add Hyper-V VMBus hypercalls blank handlers which
just returns error code - HV_STATUS_INVALID_HYPERCALL_CODE.

Changes v3:
* use HVCALL_* defines

Changes v2:
* use KVM_EXIT_HYPERV exit type

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: "Andreas Färber" <afaerber@suse.de>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: kvm@vger.kernel.org
---
 target-i386/hyperv.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/target-i386/hyperv.c b/target-i386/hyperv.c
index 6b519c3..c4d6a9b 100644
--- a/target-i386/hyperv.c
+++ b/target-i386/hyperv.c
@@ -44,6 +44,18 @@  int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
             return -1;
         }
         return 0;
+    case KVM_EXIT_HYPERV_HCALL: {
+        uint16_t code;
+
+        code  = exit->u.hcall.input & 0xffff;
+        switch (code) {
+        case HVCALL_POST_MESSAGE:
+        case HVCALL_SIGNAL_EVENT:
+        default:
+            exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
+            return 0;
+        }
+    }
     default:
         return -1;
     }