在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Since it's a device property, it can be done in net/. This helps SVQ to
allocate the rings in vdpa device initialization, rather than delay
that.
Signed-off-by: Eugenio Pérez
---
hw/virtio/vhost-vdpa.c | 15 ---
net/vhost-vdpa.c | 32
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Simplifying memory management.
Signed-off-by: Eugenio Pérez
To reduce the size of this series. This can be sent as an separate patch
if I was not wrong.
Thanks
---
net/vhost-vdpa.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
SVQ is able to log the dirty bits by itself, so let's use it to not
block migration.
Also, ignore set and clear of VHOST_F_LOG_ALL on set_features if SVQ is
enabled. Even if the device supports it, the reports would be nonsense
because SVQ memory is in the
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
@@ -272,6 +590,28 @@ void vhost_svq_set_svq_kick_fd(VhostShadowVirtqueue *svq,
int svq_kick_fd)
void vhost_svq_stop(VhostShadowVirtqueue *svq)
{
event_notifier_set_handler(>svq_kick, NULL);
+g_autofree VirtQueueElement *next_avail_elem =
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Use translations added in VhostIOVATree in SVQ.
Only introduce usage here, not allocation and deallocation. As with
previous patches, we use the dead code paths of shadow_vqs_enabled to
avoid commiting too many changes at once. These are impossible to take
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
This tree is able to look for a translated address from an IOVA address.
At first glance it is similar to util/iova-tree. However, SVQ working on
devices with limited IOVA space need more capabilities,
So did the IOVA tree (e.g l2 vtd can only work in
在 2022/1/24 下午5:20, Eugenio Perez Martin 写道:
On Mon, Jan 24, 2022 at 5:33 AM Peter Xu wrote:
On Fri, Jan 21, 2022 at 09:27:23PM +0100, Eugenio Pérez wrote:
+int iova_tree_alloc(IOVATree *tree, DMAMap *map, hwaddr iova_begin,
I forgot to s/iova_tree_alloc/iova_tree_alloc_map/ here.
+
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Initial version of shadow virtqueue that actually forward buffers. There
is no iommu support at the moment, and that will be addressed in future
patches of this series. Since all vhost-vdpa devices use forced IOMMU,
this means that SVQ is not usable at this
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
First half of the buffers forwarding part, preparing vhost-vdpa
callbacks to SVQ to offer it. QEMU cannot enable it at this moment, so
this is effectively dead code at the moment, but it helps to reduce
patch size.
Signed-off-by: Eugenio Pérez
---
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Doing that way allows vhost backend to know what address to return.
Signed-off-by: Eugenio Pérez
---
hw/virtio/vhost.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
This reports the guest's visible SVQ effective length, not the device's
one.
I think we need to explain if there could be a case that the SVQ size is
not equal to the device queue size.
Thanks
Signed-off-by: Eugenio Pérez
---
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
This allows SVQ to negotiate features with the device. For the device,
SVQ is a driver. While this function needs to bypass all non-transport
features, it needs to disable the features that SVQ does not support
when forwarding buffers. This includes packed
在 2022/1/22 上午4:27, Eugenio Pérez 写道:
Signed-off-by: Eugenio Pérez
---
hw/virtio/vhost-vdpa.c | 20 ++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 18de14f0fb..029f98feee 100644
---
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