On 2021/2/9 下午2:12, Eli Cohen wrote:
On Tue, Feb 09, 2021 at 11:20:14AM +0800, Jason Wang wrote:
On 2021/2/8 下午6:04, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 05:04:27PM +0800, Jason Wang wrote:
On 2021/2/8 下午2:37, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 12:27:18PM +0800, Jason Wang wrote:
On 2021/2/9 上午2:55, Willem de Bruijn wrote:
From: Willem de Bruijn
Add optional PTP hardware tx timestamp offload for virtio-net.
Accurate RTT measurement requires timestamps close to the wire.
Introduce virtio feature VIRTIO_NET_F_TX_TSTAMP, the transmit
equivalent to
On 2021/2/6 下午8:29, Si-Wei Liu wrote:
While virtq is stopped, get_vq_state() is supposed to
be called to get sync'ed with the latest internal
avail_index from device. The saved avail_index is used
to restate the virtq once device is started. Commit
b35ccebe3ef7 introduced the
On 2021/2/9 上午3:08, Willem de Bruijn wrote:
On Sun, Feb 7, 2021 at 10:29 PM Jason Wang wrote:
On 2021/2/5 上午4:50, Willem de Bruijn wrote:
On Wed, Feb 3, 2021 at 10:06 PM Jason Wang wrote:
On 2021/2/4 上午2:28, Willem de Bruijn wrote:
On Wed, Feb 3, 2021 at 12:33 AM Jason Wang wrote:
On
On 2021/2/9 上午2:38, Michael S. Tsirkin wrote:
On Mon, Feb 08, 2021 at 05:17:41PM +0100, Stefano Garzarella wrote:
It's legal to have 'offset + len' equal to
sizeof(struct virtio_net_config), since 'ndev->config' is a
'struct virtio_net_config', so we can safely copy its content under
this
On 2021/2/9 上午12:17, Stefano Garzarella wrote:
It's legal to have 'offset + len' equal to
sizeof(struct virtio_net_config), since 'ndev->config' is a
'struct virtio_net_config', so we can safely copy its content under
this condition.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for
On 2021/2/8 下午6:04, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 05:04:27PM +0800, Jason Wang wrote:
On 2021/2/8 下午2:37, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 12:27:18PM +0800, Jason Wang wrote:
On 2021/2/6 上午7:07, Si-Wei Liu wrote:
On 2/3/2021 11:36 PM, Eli Cohen wrote:
When a change of
On 2/7/2021 9:48 PM, Eli Cohen wrote:
On Sat, Feb 06, 2021 at 04:29:24AM -0800, Si-Wei Liu wrote:
While virtq is stopped, get_vq_state() is supposed to
be called to get sync'ed with the latest internal
avail_index from device. The saved avail_index is used
to restate the virtq once
On 2/7/2021 9:35 PM, Eli Cohen wrote:
On Sat, Feb 06, 2021 at 04:29:23AM -0800, Si-Wei Liu wrote:
The mlx_features denotes the capability for which
set of virtio features is supported by device. In
principle, this field needs not be cleared during
virtio device reset, as this capability is
Hi Gerd, Daniel,
> -Original Message-
> From: Daniel Vetter
> Sent: Monday, February 08, 2021 1:39 AM
> To: Gerd Hoffmann
> Cc: Daniel Vetter ; Kasireddy, Vivek
> ;
> virtualization@lists.linux-foundation.org; dri-de...@lists.freedesktop.org;
> Vetter, Daniel
> ;
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
>
> Introduce mmap interface for a virtual processor, exposing a page for
> setting and getting common registers while the VP is suspended.
>
> This provides a more performant and convenient way to get and set these
> registers in
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
> To: linux-hyp...@vger.kernel.org
> Cc: virtualization@lists.linux-foundation.org; linux-ker...@vger.kernel.org;
> Michael Kelley
> ; virem...@linux.microsoft.com; Sunil Muthuswamy
> ; nunodasne...@linux.microsoft.com;
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
>
> Same idea as synic setup in drivers/hv/hv.c:hv_synic_enable_regs()
> and hv_synic_disable_regs().
> Setting up synic registers in both vmbus driver and mshv would clobber
> them, but the vmbus driver will not run in the root
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Add ioctls for getting and setting virtual processor registers.
>
> Co-developed-by: Lillian Grassin-Drake
> Signed-off-by: Lillian Grassin-Drake
> Signed-off-by: Nuno Das Neves
> ---
> Documentation/virt/mshv/api.rst
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Introduce ioctls for mapping and unmapping regions of guest memory.
>
> Uses a table of memory 'slots' similar to KVM, but the slot
> number is not visible to userspace.
>
> For now, this simple implementation requires each new
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Withdraw the memory from a finalized partition and free the pages.
> The partition is now cleaned up correctly when the fd is released.
>
> Co-developed-by: Lillian Grassin-Drake
> Signed-off-by: Lillian Grassin-Drake
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Add hypercalls for fully setting up and mostly tearing down a guest
> partition.
> The teardown operation will generate an error as the deposited
> memory has not been withdrawn.
> This is fixed in the next patch.
>
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Reserve ioctl number in userpsace-api/ioctl/ioctl-number.rst
> Introduce MSHV_REQUEST_VERSION ioctl.
> Introduce documentation for /dev/mshv in Documentation/virt/mshv
>
> Signed-off-by: Nuno Das Neves
> ---
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> This patch series provides a userspace interface for creating and running
> guest
> virtual machines while running on the Microsoft Hypervisor [0].
>
> Since managing guest machines can only be done when Linux is the root
>
On Sun, Feb 7, 2021 at 10:29 PM Jason Wang wrote:
>
>
> On 2021/2/5 上午4:50, Willem de Bruijn wrote:
> > On Wed, Feb 3, 2021 at 10:06 PM Jason Wang wrote:
> >>
> >> On 2021/2/4 上午2:28, Willem de Bruijn wrote:
> >>> On Wed, Feb 3, 2021 at 12:33 AM Jason Wang wrote:
> On 2021/2/2 下午10:37,
From: Willem de Bruijn
Add optional PTP hardware rx timestamp offload for virtio-net.
Accurate RTT measurement requires timestamps close to the wire.
Introduce virtio feature VIRTIO_NET_F_RX_TSTAMP. If negotiated, the
virtio-net header is expanded with room for a timestamp.
A device may pass
From: Willem de Bruijn
Add optional PTP hardware tx timestamp offload for virtio-net.
Accurate RTT measurement requires timestamps close to the wire.
Introduce virtio feature VIRTIO_NET_F_TX_TSTAMP, the transmit
equivalent to VIRTIO_NET_F_RX_TSTAMP.
The driver sets VIRTIO_NET_HDR_F_TSTAMP to
From: Willem de Bruijn
Add optional transmit time (SO_TXTIME) offload for virtio-net.
The Linux TCP/IP stack tries to avoid bursty transmission and network
congestion through pacing: computing an skb delivery time based on
congestion information. Userspace protocol implementations can achieve
From: Willem de Bruijn
RFCv2 for four new features to the virtio network device:
1. pass tx flow state to host, for routing + telemetry
2. pass rx tstamp to guest, for better RTT estimation
3. pass tx tstamp to guest, idem
3. pass tx delivery time to host, for accurate pacing
All would
From: Willem de Bruijn
Virtio-net supports sharing the flow hash from device to driver on rx.
Do the same in the other direction for robust routing and telemetry.
Linux derives ipv6 flowlabel and ECMP multipath from sk->sk_txhash,
and updates this field on error with sk_rethink_txhash. Allow
On Mon, Feb 08, 2021 at 05:17:41PM +0100, Stefano Garzarella wrote:
> It's legal to have 'offset + len' equal to
> sizeof(struct virtio_net_config), since 'ndev->config' is a
> 'struct virtio_net_config', so we can safely copy its content under
> this condition.
>
> Fixes: 1a86b377aa21
On Mon, Feb 08, 2021 at 03:44:54PM +0100, Stefano Garzarella wrote:
> If the socket is closed or is being released, some resources used by
> virtio_transport_space_update() such as 'vsk->trans' may be released.
>
> To avoid a use after free bug we should only update the available credit
> when we
On Fri, Feb 05, 2021 at 06:58:52PM +0100, Christoph Hellwig wrote:
> On Wed, Feb 03, 2021 at 02:36:38PM -0500, Konrad Rzeszutek Wilk wrote:
> > > So what? If you guys want to provide a new capability you'll have to do
> > > work. And designing a new protocol based around the fact that the
> > >
It's legal to have 'offset + len' equal to
sizeof(struct virtio_net_config), since 'ndev->config' is a
'struct virtio_net_config', so we can safely copy its content under
this condition.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Cc: sta...@vger.kernel.org
On 2/7/21 12:15 PM, Dongli Zhang wrote:
> Is it possible that the issue is not due to this change?
Looks this issue does not related your change, from dmesg output, when issue
occurred, virtio was not loaded:
[ 502.508450] [ cut here ]
[ 502.511859] WARNING: CPU: 0
On 2/5/21 11:10 AM, Parav Pandit wrote:
> diff --git a/vdpa/include/uapi/linux/vdpa.h b/vdpa/include/uapi/linux/vdpa.h
> new file mode 100644
> index ..66a41e4e
> --- /dev/null
> +++ b/vdpa/include/uapi/linux/vdpa.h
> @@ -0,0 +1,40 @@
> +/* SPDX-License-Identifier: GPL-2.0+ WITH
If the socket is closed or is being released, some resources used by
virtio_transport_space_update() such as 'vsk->trans' may be released.
To avoid a use after free bug we should only update the available credit
when we are sure the socket is still open and we have the lock held.
Fixes:
On Mon, Feb 08, 2021 at 01:42:27PM +0800, Jason Wang wrote:
>
> On 2021/2/5 下午11:34, Michael S. Tsirkin wrote:
> > On Mon, Jan 04, 2021 at 02:55:00PM +0800, Jason Wang wrote:
> > > Signed-off-by: Jason Wang
> > I don't exactly get why we need to split the modern driver out,
> > and it can confuse
On Thu, Feb 04, 2021 at 05:35:02AM -0600, Mike Christie wrote:
> The following patches made over Martin's 5.12 branches fix two
> issues:
>
> 1. target_core_iblock plugs and unplugs the queue for every
> command. To handle this issue and handle an issue that
> vhost-scsi and loop were avoiding by
Vmap operations may acquire the dmabuf reservation lock, which is not
allowed within atomic commit-tail functions. Therefore move vmap and
vunmap from the damage handler into prepare_fb and cleanup_fb callbacks.
The mapping is provided as GEM shadow-buffered plane. The functions in
the commit
Several drivers use GEM buffer objects as shadow buffers for the actual
framebuffer memory. Right now, drivers do these vmap operations in their
commit tail, which is actually not allowed by the locking rules for
the dma-buf reservation lock. The involved BO has to be vmapped in the
plane's
Vmap operations may acquire the dmabuf reservation lock, which is not
allowed within atomic commit-tail functions. Therefore move vmap and
vunmap from the damage handler into prepare_fb and cleanup_fb callbacks.
The mapping is provided as GEM shadow-buffered plane. The functions in
the commit
Vmap operations may acquire the dmabuf reservation lock, which is not
allowed within atomic commit-tail functions. Therefore move vmap and
vunmap from the damage handler into prepare_fb and cleanup_fb callbacks.
The mapping is provided as GEM shadow-buffered plane. The functions in
the commit
Vmap operations may acquire the dmabuf reservation lock, which is not
allowed within atomic commit-tail functions. Therefore move vmap and
vunmap from the damage handler into prepare_fb and cleanup_fb callbacks.
The mapping is provided as GEM shadow-buffered plane. The functions in
the commit
Several SHMEM-based drivers use the BO as shadow buffer for the real
framebuffer memory. Damage handling requires a vmap of the BO memory.
But vmap/vunmap can acquire the dma-buf reservation lock, which is not
allowed in commit tails.
This patchset introduces a set of helpers that implement
The symbols will be required by the upcoming helpers for shadow-buffered
planes.
Signed-off-by: Thomas Zimmermann
Tested-by: Gerd Hoffmann
Acked-by: Gerd Hoffmann
Reported-by: kernel test robot
---
drivers/gpu/drm/drm_gem.c | 2 ++
1 file changed, 2 insertions(+)
diff --git
Just like regular plane-state helpers, drivers can use these new
callbacks to create and destroy private plane state.
v2:
* make duplicate_state interface compatible with
struct drm_plane_funcs
Signed-off-by: Thomas Zimmermann
Tested-by: Gerd Hoffmann
Acked-by: Gerd Hoffmann
Hi
Am 08.02.21 um 11:53 schrieb Gerd Hoffmann:
On Sun, Feb 07, 2021 at 07:33:24PM +0100, Thomas Zimmermann wrote:
Hi
Am 05.02.21 um 10:05 schrieb Gerd Hoffmann:
Hi,
I smoke-tested the code by running fbdev, Xorg and weston with the
converted mgag200 driver.
Looks sane to me.
Survived
On Sun, Feb 07, 2021 at 07:33:24PM +0100, Thomas Zimmermann wrote:
> Hi
>
> Am 05.02.21 um 10:05 schrieb Gerd Hoffmann:
> >Hi,
> >
> > > I smoke-tested the code by running fbdev, Xorg and weston with the
> > > converted mgag200 driver.
> >
> > Looks sane to me.
> > Survived cirrus smoke
On Thu, Feb 04, 2021 at 05:35:02AM -0600, Mike Christie wrote:
> The following patches made over Martin's 5.12 branches fix two
> issues:
>
> 1. target_core_iblock plugs and unplugs the queue for every
> command. To handle this issue and handle an issue that
> vhost-scsi and loop were avoiding by
Specifically do not try release resources which where
not allocated in the first place.
Cc: Tong Zhang
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/qxl/qxl_display.c | 3 +++
drivers/gpu/drm/qxl/qxl_kms.c | 4
2 files changed, 7 insertions(+)
diff --git
Hi Takashi,
Thank you for your hints, I actually applied them all. The only question
that I have is...
On 03.02.2021 19:07, Takashi Iwai wrote:
[snip]
- Don't PCM stream names need to be unique? They are all the same
string.
What did you mean here? Substream names?
thanks,
On Sun, Feb 07, 2021 at 11:03:30AM +0800, kernel test robot wrote:
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: 79991caf5202c7989928be534727805f8f68bb8d ("vdpa_sim_net: Add support
> for user supported devices")
>
On Mon, Feb 08, 2021 at 08:57:48AM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > > +/* extract pages referenced by sgt */
> > > +static struct page **extr_pgs(struct sg_table *sgt, int *nents, int
> > > *last_len)
> >
> > Nack, this doesn't work on dma-buf. And it'll blow up at runtime when you
> >
On Mon, Feb 08, 2021 at 05:04:27PM +0800, Jason Wang wrote:
>
> On 2021/2/8 下午2:37, Eli Cohen wrote:
> > On Mon, Feb 08, 2021 at 12:27:18PM +0800, Jason Wang wrote:
> > > On 2021/2/6 上午7:07, Si-Wei Liu wrote:
> > > >
> > > > On 2/3/2021 11:36 PM, Eli Cohen wrote:
> > > > > When a change of
On 2021/2/8 下午2:37, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 12:27:18PM +0800, Jason Wang wrote:
On 2021/2/6 上午7:07, Si-Wei Liu wrote:
On 2/3/2021 11:36 PM, Eli Cohen wrote:
When a change of memory map occurs, the hardware resources are destroyed
and then re-created again with the new
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