On Thu, Jun 23, 2022 at 3:21 AM Eugenio Perez Martin
wrote:
>
> On Wed, Jun 22, 2022 at 5:39 PM Stefano Garzarella
> wrote:
> >
> > Hi,
> > while developing/testing the vdpa-blk support in libblkio [1], I
> > realized that we added several regressions with the "[PATCH v2 00/19]
> > Control VQ su
On Wed, Jun 22, 2022 at 11:14 PM Stefano Garzarella wrote:
>
> Before commit 3d5698793897 ("vhost-vdpa: introduce asid based IOTLB")
> we call vhost_vdpa_iotlb_free() during the release to clean all regions
> mapped in the iotlb.
>
> That commit removed vhost_vdpa_iotlb_free() and added vhost_vdpa
On Wed, Jun 22, 2022 at 12:13 AM Stefano Garzarella wrote:
>
> Call vringh_complete_iotlb() even when we encounter a serious error
> that prevents us from writing the status in the "in" header
> (e.g. the header length is incorrect, etc.).
>
> The guest is misbehaving, so maybe the ring is in a ba
On Wed, Jun 22, 2022 at 12:09 AM Stefano Garzarella wrote:
>
> Limit the number of requests (4 per queue as for vdpa_sim_net) handled
> in a batch to prevent the worker from using the CPU for too long.
>
> Suggested-by: Eugenio Pérez
> Signed-off-by: Stefano Garzarella
> ---
> drivers/vdpa/vdpa
> From: Robin Murphy
> Sent: Wednesday, June 22, 2022 3:55 PM
>
> On 2022-06-16 23:23, Nicolin Chen wrote:
> > On Thu, Jun 16, 2022 at 06:40:14AM +, Tian, Kevin wrote:
> >
> >>> The domain->ops validation was added, as a precaution, for mixed-
> driver
> >>> systems. However, at this moment o
On Wed, Jun 22, 2022 at 12:09 AM Stefano Garzarella wrote:
>
> Use dev_dbg() instead of dev_err()/dev_warn() to avoid flooding the
> host with prints, when the guest driver is misbehaving.
> In this way, prints can be dynamically enabled when the vDPA block
> simulator is used to validate a driver
On Wed, Jun 22, 2022 at 8:16 PM Michael S. Tsirkin wrote:
>
> On Wed, Jun 22, 2022 at 04:51:22PM +0800, Jason Wang wrote:
> > On Fri, Jun 17, 2022 at 10:04 AM Albert Huang
> > wrote:
> > >
> > > From: "huangjie.albert"
> > >
> > > the used_wrap_counter and the vq->last_used_idx may get
> > > out
On Wed, Jun 22, 2022 at 05:04:44PM +0200, Eugenio Perez Martin wrote:
On Wed, Jun 22, 2022 at 12:21 PM Eugenio Perez Martin
wrote:
On Tue, Jun 21, 2022 at 5:20 PM Stefano Garzarella wrote:
>
> Hi Gautam,
>
> On Wed, Mar 30, 2022 at 8:21 PM Gautam Dawar wrote:
> >
> > This patch introduces th
Hi,
while developing/testing the vdpa-blk support in libblkio [1], I
realized that we added several regressions with the "[PATCH v2 00/19]
Control VQ support in vDPA" series (patches/clarifications already
sent).
To minimize these problems in the future, I was thinking of adding tests
for vh
Before commit 3d5698793897 ("vhost-vdpa: introduce asid based IOTLB")
we call vhost_vdpa_iotlb_free() during the release to clean all regions
mapped in the iotlb.
That commit removed vhost_vdpa_iotlb_free() and added vhost_vdpa_cleanup()
to do some cleanup, including deleting all mappings, but we
On Wed, Jun 22, 2022 at 04:51:22PM +0800, Jason Wang wrote:
> On Fri, Jun 17, 2022 at 10:04 AM Albert Huang
> wrote:
> >
> > From: "huangjie.albert"
> >
> > the used_wrap_counter and the vq->last_used_idx may get
> > out of sync if they are separate assignment，and interrupt
> > might use an incor
On Wed, Jun 22, 2022 at 03:50:52AM -0400, Deming Wang wrote:
> It passes '_vq' to virtqueue_use_indirect(), which still calls
> to_vvq to get 'vq', let's directly pass 'vq'. It can avoid
> unnecessary call of to_vvq in hot path.
>
> Signed-off-by: Deming Wang
I do not see the point of any of the
On Fri, Jun 17, 2022 at 10:04 AM Albert Huang
wrote:
>
> From: "huangjie.albert"
>
> the used_wrap_counter and the vq->last_used_idx may get
> out of sync if they are separate assignment，and interrupt
> might use an incorrect value to check for the used index.
>
> for example:OOB access
> ksoftir
On Wed, Jun 22 2022, Jason Wang wrote:
> We try to harden virtio device notifications in 8b4ec69d7e09 ("virtio:
> harden vring IRQ"). It works with the assumption that the driver or
> core can properly call virtio_device_ready() at the right
> place. Unfortunately, this seems to be not true and u
On Tue, Jun 21, 2022 at 7:50 PM Stephan Gerhold
wrote:
>
> The following sequence currently causes a driver bug warning
> when using virtio_net:
>
> # ip link set eth0 up
> # echo mem > /sys/power/state (or e.g. # rtcwake -s 10 -m mem)
>
> # ip link set eth0 down
>
> Missing register, d
On 2022-06-16 23:23, Nicolin Chen wrote:
On Thu, Jun 16, 2022 at 06:40:14AM +, Tian, Kevin wrote:
The domain->ops validation was added, as a precaution, for mixed-driver
systems. However, at this moment only one iommu driver is possible. So
remove it.
It's true on a physical platform. But
On Wed, Jun 22, 2022 at 3:03 PM Michael S. Tsirkin wrote:
>
> On Wed, Jun 22, 2022 at 09:29:40AM +0800, Jason Wang wrote:
> > We try to harden virtio device notifications in 8b4ec69d7e09 ("virtio:
> > harden vring IRQ"). It works with the assumption that the driver or
> > core can properly call vi
On Wed, Jun 22, 2022 at 09:29:40AM +0800, Jason Wang wrote:
> We try to harden virtio device notifications in 8b4ec69d7e09 ("virtio:
> harden vring IRQ"). It works with the assumption that the driver or
> core can properly call virtio_device_ready() at the right
> place. Unfortunately, this seems t
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