[v1] Misc (mostly x86) patches for 2019-06-21

[Qemu-devel] [PULL 10/25] i386/kvm: hv-evmcs requires hv-vapic

Paolo Bonzini posted 25 patches 6 years, 3 months ago

Diff against v2
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Maintainers: Halil Pasic <pasic@linux.ibm.com>, Marcelo Tosatti <mtosatti@redhat.com>, Richard Henderson <rth@twiddle.net>, David Hildenbrand <david@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, "Michael S. Tsirkin" <mst@redhat.com>, Aleksandar Rikalo <arikalo@wavecomp.com>, David Gibson <david@gibson.dropbear.id.au>, Aurelien Jarno <aurelien@aurel32.net>, Juan Quintela <quintela@redhat.com>, Aleksandar Markovic <amarkovic@wavecomp.com>, James Hogan <jhogan@kernel.org>, Eduardo Habkost <ehabkost@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>

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[Qemu-devel] [PULL 10/25] i386/kvm: hv-evmcs requires hv-vapic

Posted by Paolo Bonzini 6 years, 3 months ago

From: Vitaly Kuznetsov <vkuznets@redhat.com>

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>
Message-Id: <20190517141924.19024-9-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@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 1dfa282..86de510 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -790,7 +790,8 @@ 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)",
-- 
1.8.3.1