qemu-kvm/kvm-vhost-Reorder-vhost_svq_kick.patch
Miroslav Rezanina 23d471091d * Mon Aug 08 2022 Miroslav Rezanina <mrezanin@redhat.com> - 7.0.0-10
- kvm-vhost-Track-descriptor-chain-in-private-at-SVQ.patch [bz#1939363]
- kvm-vhost-Fix-device-s-used-descriptor-dequeue.patch [bz#1939363]
- kvm-hw-virtio-Replace-g_memdup-by-g_memdup2.patch [bz#1939363]
- kvm-vhost-Fix-element-in-vhost_svq_add-failure.patch [bz#1939363]
- kvm-meson-create-have_vhost_-variables.patch [bz#1939363]
- kvm-meson-use-have_vhost_-variables-to-pick-sources.patch [bz#1939363]
- kvm-vhost-move-descriptor-translation-to-vhost_svq_vring.patch [bz#1939363]
- kvm-virtio-net-Expose-MAC_TABLE_ENTRIES.patch [bz#1939363]
- kvm-virtio-net-Expose-ctrl-virtqueue-logic.patch [bz#1939363]
- kvm-vdpa-Avoid-compiler-to-squash-reads-to-used-idx.patch [bz#1939363]
- kvm-vhost-Reorder-vhost_svq_kick.patch [bz#1939363]
- kvm-vhost-Move-vhost_svq_kick-call-to-vhost_svq_add.patch [bz#1939363]
- kvm-vhost-Check-for-queue-full-at-vhost_svq_add.patch [bz#1939363]
- kvm-vhost-Decouple-vhost_svq_add-from-VirtQueueElement.patch [bz#1939363]
- kvm-vhost-Add-SVQDescState.patch [bz#1939363]
- kvm-vhost-Track-number-of-descs-in-SVQDescState.patch [bz#1939363]
- kvm-vhost-add-vhost_svq_push_elem.patch [bz#1939363]
- kvm-vhost-Expose-vhost_svq_add.patch [bz#1939363]
- kvm-vhost-add-vhost_svq_poll.patch [bz#1939363]
- kvm-vhost-Add-svq-avail_handler-callback.patch [bz#1939363]
- kvm-vdpa-Export-vhost_vdpa_dma_map-and-unmap-calls.patch [bz#1939363]
- kvm-vhost-net-vdpa-add-stubs-for-when-no-virtio-net-devi.patch [bz#1939363]
- kvm-vdpa-manual-forward-CVQ-buffers.patch [bz#1939363]
- kvm-vdpa-Buffer-CVQ-support-on-shadow-virtqueue.patch [bz#1939363]
- kvm-vdpa-Extract-get-features-part-from-vhost_vdpa_get_m.patch [bz#1939363]
- kvm-vdpa-Add-device-migration-blocker.patch [bz#1939363]
- kvm-vdpa-Add-x-svq-to-NetdevVhostVDPAOptions.patch [bz#1939363]
- kvm-redhat-Update-linux-headers-linux-kvm.h-to-v5.18-rc6.patch [bz#2111994]
- kvm-target-s390x-kvm-Honor-storage-keys-during-emulation.patch [bz#2111994]
- kvm-kvm-don-t-use-perror-without-useful-errno.patch [bz#2095608]
- kvm-multifd-Copy-pages-before-compressing-them-with-zlib.patch [bz#2099934]
- kvm-Revert-migration-Simplify-unqueue_page.patch [bz#2099934]
- Resolves: bz#1939363
  (vDPA control virtqueue support in Qemu)
- Resolves: bz#2111994
  (RHEL9: skey test in kvm_unit_test got failed)
- Resolves: bz#2095608
  (Please correct the error message when try to start qemu with "-M kernel-irqchip=split")
- Resolves: bz#2099934
  (Guest reboot on destination host after postcopy migration completed)
2022-08-08 04:22:43 -04:00

89 lines
2.5 KiB
Diff

From fdbf66e4c70de16ab36d70ea591322b1b24df591 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
Date: Thu, 21 Jul 2022 15:38:55 +0200
Subject: [PATCH 11/32] vhost: Reorder vhost_svq_kick
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Eugenio Pérez <eperezma@redhat.com>
RH-MergeRequest: 108: Net Control Virtqueue shadow Support
RH-Commit: [11/27] 1d08b97eb3960a0f85f2dd48c3331b803f7ea205 (eperezmartin/qemu-kvm)
RH-Bugzilla: 1939363
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Cindy Lu <lulu@redhat.com>
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
Bugzilla: https://bugzilla.redhat.com/1939363
Upstream Status: git://git.qemu.org/qemu.git
commit d93a2405ca6efa9dc1c420cee5a34bd8242818d0
Author: Eugenio Pérez <eperezma@redhat.com>
Date: Wed Jul 20 08:59:30 2022 +0200
vhost: Reorder vhost_svq_kick
Future code needs to call it from vhost_svq_add.
No functional change intended.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
hw/virtio/vhost-shadow-virtqueue.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c
index 9c46c3a8fa..05cd39d1eb 100644
--- a/hw/virtio/vhost-shadow-virtqueue.c
+++ b/hw/virtio/vhost-shadow-virtqueue.c
@@ -215,6 +215,20 @@ static bool vhost_svq_add_split(VhostShadowVirtqueue *svq,
return true;
}
+static void vhost_svq_kick(VhostShadowVirtqueue *svq)
+{
+ /*
+ * We need to expose the available array entries before checking the used
+ * flags
+ */
+ smp_mb();
+ if (svq->vring.used->flags & VRING_USED_F_NO_NOTIFY) {
+ return;
+ }
+
+ event_notifier_set(&svq->hdev_kick);
+}
+
/**
* Add an element to a SVQ.
*
@@ -235,20 +249,6 @@ static bool vhost_svq_add(VhostShadowVirtqueue *svq, VirtQueueElement *elem)
return true;
}
-static void vhost_svq_kick(VhostShadowVirtqueue *svq)
-{
- /*
- * We need to expose the available array entries before checking the used
- * flags
- */
- smp_mb();
- if (svq->vring.used->flags & VRING_USED_F_NO_NOTIFY) {
- return;
- }
-
- event_notifier_set(&svq->hdev_kick);
-}
-
/**
* Forward available buffers.
*
--
2.31.1