qemu-kvm/0016-vdpa-use-first-queue-SVQ-state-for-CVQ-default.patch

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From 1b07788415a3d9729a3b11fc14d1d56ce5e6c888 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
Date: Thu, 10 Aug 2023 16:08:18 +0200
Subject: vdpa: use first queue SVQ state for CVQ default
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Eugenio Pérez <eperezma@redhat.com>
RH-MergeRequest: 199: CVQ migration support
RH-Jira: RHEL-923
RH-Acked-by: Jason Wang <jasowang@redhat.com>
RH-Acked-by: Cindy Lu <lulu@redhat.com>
RH-Commit: [3/7] 5c98f11b5080552a62c8e37ff2c23339455b7b86 (eperezmartin/qemu-kvm)
Previous to this patch the only way CVQ would be shadowed is if it does
support to isolate CVQ group or if all vqs were shadowed from the
beginning. The second condition was checked at the beginning, and no
more configuration was done.
After this series we need to check if data queues are shadowed because
they are in the middle of the migration. As checking if they are
shadowed already covers the previous case, let's just mimic it.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Patch-name: kvm-vdpa-use-first-queue-SVQ-state-for-CVQ-default.patch
Patch-id: 189
Patch-present-in-specfile: True
---
net/vhost-vdpa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 9795306742..a772540250 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -505,7 +505,7 @@ static int vhost_vdpa_net_cvq_start(NetClientState *nc)
s0 = vhost_vdpa_net_first_nc_vdpa(s);
v->shadow_data = s0->vhost_vdpa.shadow_vqs_enabled;
- v->shadow_vqs_enabled = s->always_svq;
+ v->shadow_vqs_enabled = s0->vhost_vdpa.shadow_vqs_enabled;
s->vhost_vdpa.address_space_id = VHOST_VDPA_GUEST_PA_ASID;
if (s->vhost_vdpa.shadow_data) {
--
2.39.3