From: Cindy Lu <lulu@redhat.com>
To: lulu@redhat.com, qemu-devel@nongnu.org
Cc: "Jason Wang" <jasowang@redhat.com>,
virtio-fs@redhat.com, "Stefan Hajnoczi" <stefanha@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Gonglei (Arei)" <arei.gonglei@huawei.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [Virtio-fs] [PATCH v13 05/10] vhost-vdpa: add support for config interrupt
Date: Wed, 20 Jul 2022 21:11:59 +0800 [thread overview]
Message-ID: <20220720131204.591104-6-lulu@redhat.com> (raw)
Add new call back function in vhost-vdpa, The function
vhost_set_config_call can set the event fd to kernel.
This function will be called in the vhost_dev_start
and vhost_dev_stop
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/trace-events | 1 +
hw/virtio/vhost-vdpa.c | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
index a5102eac9e..b968ba9e4e 100644
--- a/hw/virtio/trace-events
+++ b/hw/virtio/trace-events
@@ -53,6 +53,7 @@ vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRI
vhost_vdpa_set_owner(void *dev) "dev: %p"
vhost_vdpa_vq_get_addr(void *dev, void *vq, uint64_t desc_user_addr, uint64_t avail_user_addr, uint64_t used_user_addr) "dev: %p vq: %p desc_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" used_user_addr: 0x%"PRIx64
vhost_vdpa_get_iova_range(void *dev, uint64_t first, uint64_t last) "dev: %p first: 0x%"PRIx64" last: 0x%"PRIx64
+vhost_vdpa_set_config_call(void *dev, int fd)"dev: %p fd: %d"
# virtio.c
virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u"
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 8adf7c0b92..02bafb61b9 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -733,6 +733,13 @@ static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev)
return 0;
}
+static int vhost_vdpa_set_config_call(struct vhost_dev *dev,
+ int fd)
+{
+ trace_vhost_vdpa_set_config_call(dev, fd);
+ return vhost_vdpa_call(dev, VHOST_VDPA_SET_CONFIG_CALL, &fd);
+}
+
static void vhost_vdpa_dump_config(struct vhost_dev *dev, const uint8_t *config,
uint32_t config_len)
{
@@ -1297,4 +1304,5 @@ const VhostOps vdpa_ops = {
.vhost_get_device_id = vhost_vdpa_get_device_id,
.vhost_vq_get_addr = vhost_vdpa_vq_get_addr,
.vhost_force_iommu = vhost_vdpa_force_iommu,
+ .vhost_set_config_call = vhost_vdpa_set_config_call,
};
--
2.34.3
reply other threads:[~2022-07-20 13:11 UTC|newest]
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