From cb974f2f9a0c5b9520b6ac80bd1d1e4a6b12bbdc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
Date: Thu, 15 Dec 2022 12:31:33 +0100
Subject: [PATCH 01/14] vdpa: use v->shadow_vqs_enabled in
 vhost_vdpa_svqs_start & stop
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RH-Author: Eugenio Pérez <eperezma@redhat.com>
RH-MergeRequest: 136: vDPA ASID support in Qemu
RH-Bugzilla: 2104412
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
RH-Acked-by: Cindy Lu <lulu@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Commit: [1/13] f0db50a95f87dd011418617be7b80aa6813a1146 (eperezmartin/qemu-kvm)

This function used to trust in v->shadow_vqs != NULL to know if it must
start svq or not.

This is not going to be valid anymore, as qemu is going to allocate svq
array unconditionally (but it will only start them conditionally).

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221215113144.322011-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 712c1a3171cf62d501dac5af58f77d5fea70350d)
---
 hw/virtio/vhost-vdpa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index c5be2645b0..44e6a9b7b3 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -1036,7 +1036,7 @@ static bool vhost_vdpa_svqs_start(struct vhost_dev *dev)
     Error *err = NULL;
     unsigned i;
 
-    if (!v->shadow_vqs) {
+    if (!v->shadow_vqs_enabled) {
         return true;
     }
 
@@ -1089,7 +1089,7 @@ static void vhost_vdpa_svqs_stop(struct vhost_dev *dev)
 {
     struct vhost_vdpa *v = dev->opaque;
 
-    if (!v->shadow_vqs) {
+    if (!v->shadow_vqs_enabled) {
         return;
     }
 
-- 
2.31.1