[Qemu-devel] [PATCH v2 8/9] i386/kvm: hv-evmcs requires hv-vapic

Vitaly Kuznetsov posted 9 patches 6 years, 5 months ago
Maintainers: Richard Henderson <rth@twiddle.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
[Qemu-devel] [PATCH v2 8/9] i386/kvm: hv-evmcs requires hv-vapic
Posted by Vitaly Kuznetsov 6 years, 5 months ago
Enlightened VMCS is enabled by writing to a field in VP assist page and
these require virtual APIC.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 target/i386/kvm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 7fc97b749e..7ae2f63f72 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -791,7 +791,8 @@ static struct {
         .flags = {
             {.fw = FEAT_HV_RECOMM_EAX,
              .bits = HV_ENLIGHTENED_VMCS_RECOMMENDED}
-        }
+        },
+        .dependencies = BIT(HYPERV_FEAT_VAPIC)
     },
     [HYPERV_FEAT_IPI] = {
         .desc = "paravirtualized IPI (hv-ipi)",
-- 
2.20.1