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[PATCH v3 05/15] virtio: core: vq reset feature negotation support
From: |
Kangjie Xu |
Subject: |
[PATCH v3 05/15] virtio: core: vq reset feature negotation support |
Date: |
Thu, 25 Aug 2022 16:08:48 +0800 |
A a new command line parameter "queue_reset" is added.
Meanwhile, the vq reset feature is disabled for pre-7.1 machines.
Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
hw/core/machine.c | 1 +
include/hw/virtio/virtio.h | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index a673302cce..8b22b4647f 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -43,6 +43,7 @@
GlobalProperty hw_compat_7_0[] = {
{ "arm-gicv3-common", "force-8-bit-prio", "on" },
{ "nvme-ns", "eui64-default", "on"},
+ { "virtio-device", "queue_reset", "false" },
};
const size_t hw_compat_7_0_len = G_N_ELEMENTS(hw_compat_7_0);
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 085997d8f3..ed3ecbef80 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -295,7 +295,9 @@ typedef struct VirtIORNGConf VirtIORNGConf;
DEFINE_PROP_BIT64("iommu_platform", _state, _field, \
VIRTIO_F_IOMMU_PLATFORM, false), \
DEFINE_PROP_BIT64("packed", _state, _field, \
- VIRTIO_F_RING_PACKED, false)
+ VIRTIO_F_RING_PACKED, false), \
+ DEFINE_PROP_BIT64("queue_reset", _state, _field, \
+ VIRTIO_F_RING_RESET, true)
hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
bool virtio_queue_enabled_legacy(VirtIODevice *vdev, int n);
--
2.32.0
- [PATCH v3 13/15] virtio-net: support queue reset, (continued)
- [PATCH v3 13/15] virtio-net: support queue reset, Kangjie Xu, 2022/08/25
- [PATCH v3 03/15] virtio: introduce virtio_queue_reset(), Kangjie Xu, 2022/08/25
- [PATCH v3 09/15] vhost: expose vhost_virtqueue_start(), Kangjie Xu, 2022/08/25
- [PATCH v3 04/15] virtio: introduce virtio_queue_enable(), Kangjie Xu, 2022/08/25
- [PATCH v3 08/15] vhost: extract the logic of unmapping the vrings and desc, Kangjie Xu, 2022/08/25
- [PATCH v3 07/15] virtio-pci: support queue enable, Kangjie Xu, 2022/08/25
- [PATCH v3 14/15] virtio-net: support queue_enable, Kangjie Xu, 2022/08/25
- [PATCH v3 06/15] virtio-pci: support queue reset, Kangjie Xu, 2022/08/25
- [PATCH v3 02/15] virtio: introduce __virtio_queue_reset(), Kangjie Xu, 2022/08/25
- [PATCH v3 11/15] vhost-net: vhost-kernel: introduce vhost_net_virtqueue_restart(), Kangjie Xu, 2022/08/25
- [PATCH v3 05/15] virtio: core: vq reset feature negotation support,
Kangjie Xu <=
- [PATCH v3 15/15] vhost: vhost-kernel: enable vq reset feature, Kangjie Xu, 2022/08/25