-0400)
virtio,vhost: last minute fixes
More small fixes. Most notably this fixes crashes and hangs in
vhost-net.
Signed-off-by: Michael S. Tsirkin
Alok Tiwari (1):
vhost-scsi: fix argument
The return value of copy_to_iter can't be negative, check whether the
copied length is equal to the requested length instead of checking for
negative values.
Cc: zhang jiao
Link:
https://lore.kernel.org/all/20250910091739.2999-1-zhangji...@cmss.chinamobile.com
Signed-off-by: Michael S. Ts
On Wed, Sep 24, 2025 at 04:30:45PM +0800, Jason Wang wrote:
> On Wed, Sep 24, 2025 at 4:10 PM Michael S. Tsirkin wrote:
> >
> > On Wed, Sep 24, 2025 at 04:08:33PM +0800, Jason Wang wrote:
> > > On Wed, Sep 24, 2025 at 3:42 PM Michael S. Tsirkin
> > > wrote:
>
On Wed, Sep 24, 2025 at 04:08:33PM +0800, Jason Wang wrote:
> On Wed, Sep 24, 2025 at 3:42 PM Michael S. Tsirkin wrote:
> >
> > On Wed, Sep 24, 2025 at 03:33:08PM +0800, Jason Wang wrote:
> > > On Wed, Sep 24, 2025 at 3:18 PM Michael S. Tsirkin
> > > wrote:
>
On Wed, Sep 24, 2025 at 03:33:08PM +0800, Jason Wang wrote:
> On Wed, Sep 24, 2025 at 3:18 PM Michael S. Tsirkin wrote:
> >
> > On Tue, Sep 23, 2025 at 12:15:45AM +0200, Simon Schippers wrote:
> > > This patch series deals with TUN, TAP and vhost_net which drop incoming
&
On Wed, Sep 24, 2025 at 01:38:03PM +0800, Jason Wang wrote:
> On Mon, Sep 22, 2025 at 2:24 AM Michael S. Tsirkin wrote:
> >
> > On Fri, Sep 19, 2025 at 03:31:54PM +0800, Jason Wang wrote:
> > > This patch implements in order support for both split virtqueue and
> >
On Tue, Sep 23, 2025 at 12:15:50AM +0200, Simon Schippers wrote:
> The wrappers tun_ring_consume_batched/tap_ring_consume_batched are similar
> to the wrappers tun_ring_consume/tap_ring_consume. They deal with
> consuming a batch of entries of the ptr_ring and then waking the
> netdev queue wheneve
On Tue, Sep 23, 2025 at 12:15:45AM +0200, Simon Schippers wrote:
> This patch series deals with TUN, TAP and vhost_net which drop incoming
> SKBs whenever their internal ptr_ring buffer is full. Instead, with this
> patch series, the associated netdev queue is stopped before this happens.
> This
On Tue, Sep 23, 2025 at 12:15:49AM +0200, Simon Schippers wrote:
> The new wrappers tun_ring_consume/tap_ring_consume deal with consuming an
> entry of the ptr_ring and then waking the netdev queue when entries got
> invalidated to be used again by the producer.
> To avoid waking the netdev queue w
Christophe Leroy writes:
> Le 17/09/2025 à 16:00, Thomas Weißschuh a écrit :
>> The usage of ASM_FTR_IFCLR(CPU_TR_ARCH_31) requires asm/cputable.h and
>> asm/feature-fixups.h. Currently these headers are included transitively,
>> but that transitive inclusion is about to go away.
>
> Hum ...
>
> T
On Thu, Aug 21, 2025 at 02:46:35PM +0800, Jason Wang wrote:
> Following patch will introduce virtio mapping function to avoid
> abusing DMA API for device that doesn't do DMA. To ease the
> introduction, this patch rename "dma" to "map" for the current dma
> mapping helpers.
>
> Reviewed-by: Chris
On Thu, Aug 21, 2025 at 02:46:32PM +0800, Jason Wang wrote:
> Hi all:
>
> Virtio used to be coupled with DMA API. This works fine for the device
> that do real DMA but not the others. For example, VDUSE nees to craft
> with DMA API in order to let the virtio-vdpa driver to work.
>
> This series t
On Thu, Aug 21, 2025 at 02:46:38PM +0800, Jason Wang wrote:
> This patch introduces map operations for virtio device. Virtio use to
> use DMA API which is not necessarily the case since some devices
used to use
> doesn't do DMA. Instead of using tricks and abusing DMA API, let's
> simply abstract
On Thu, Aug 21, 2025 at 02:46:40PM +0800, Jason Wang wrote:
> Virtio core allows the transport to provide device or transport
> specific mapping functions. This patch adds this support to vDPA. We
> can simply do this by allowing the vDPA parent to register a
> virtio_map_ops.
>
> Reviewed-by: Chr
On Thu, Aug 21, 2025 at 02:46:38PM +0800, Jason Wang wrote:
> This patch introduces map operations for virtio device. Virtio use to
> use DMA API which is not necessarily the case since some devices
> doesn't do DMA. Instead of using tricks and abusing DMA API, let's
> simply abstract the current m
On Thu, Aug 21, 2025 at 02:46:38PM +0800, Jason Wang wrote:
> This patch introduces map operations for virtio device. Virtio use to
> use DMA API which is not necessarily the case since some devices
> doesn't do DMA. Instead of using tricks and abusing DMA API, let's
> simply abstract the current m
On Thu, Aug 21, 2025 at 02:46:40PM +0800, Jason Wang wrote:
> Virtio core allows the transport to provide device or transport
> specific mapping functions. This patch adds this support to vDPA. We
> can simply do this by allowing the vDPA parent to register a
> virtio_map_ops.
>
> Reviewed-by: Chr
On Sun, Sep 21, 2025 at 04:55:10PM -0400, Michael S. Tsirkin wrote:
> On Wed, Aug 13, 2025 at 01:48:23PM +0800, Jason Wang wrote:
> > This patch consities virtqueue point for DMA helpers.
>
> constifies the virtqueue pointer
note that i fixed it for now
> >
> > Rev
On Sun, Sep 21, 2025 at 04:54:19PM -0400, Michael S. Tsirkin wrote:
> On Wed, Aug 13, 2025 at 01:48:27PM +0800, Jason Wang wrote:
> > Following patch will introduce virtio map opreations which means the
>
> operations
note that i fixed it for now
> > address is not nec
On Sun, Sep 21, 2025 at 04:59:36PM -0400, Michael S. Tsirkin wrote:
> On Wed, Sep 10, 2025 at 05:17:38PM +0800, zhangjiao2 wrote:
> > From: zhang jiao
> >
> > The return value of copy_from_iter and copy_to_iter can't be negative,
> > check whether the copied le
On Sun, Sep 21, 2025 at 04:56:20PM -0400, Michael S. Tsirkin wrote:
> Subject: that is reference -> that is referenced
to note i fixed it for now. just dropped "that is referenced"
completely. shorter.
> On Thu, Sep 18, 2025 at 08:11:44PM +0200, Sebastian An
On Wed, Sep 10, 2025 at 05:17:38PM +0800, zhangjiao2 wrote:
> From: zhang jiao
>
> The return value of copy_from_iter and copy_to_iter can't be negative,
> check whether the copied lengths are equal.
>
> Signed-off-by: zhang jiao
Well I don't see a fix for copy_to_iter here.
Subject: that is reference -> that is referenced
On Thu, Sep 18, 2025 at 08:11:44PM +0200, Sebastian Andrzej Siewior wrote:
> vhost_task_create() creates a task and keeps a reference to its
> task_struct. That task may exit early via a signal and its task_struct
> will be released.
> A pending vho
On Wed, Aug 13, 2025 at 01:48:23PM +0800, Jason Wang wrote:
> This patch consities virtqueue point for DMA helpers.
constifies the virtqueue pointer
>
> Reviewed-by: Christoph Hellwig
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason Wang
> ---
> drivers/virtio/virtio_ring.c | 25 +
On Wed, Aug 13, 2025 at 01:48:27PM +0800, Jason Wang wrote:
> Following patch will introduce virtio map opreations which means the
operations
> address is not necessarily used for DMA. Let's rename the dma_handle
> to map_handle first.
>
> Reviewed-by: Christoph Hellwig
> Reviewed-by: Xuan Zhuo
On Fri, Sep 19, 2025 at 03:31:49PM +0800, Jason Wang wrote:
> Let's determine the last descriptor by counting the number of sg. This
> would be consistent with packed virtqueue implementation and ease the
> future in-order implementation.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Si
tion like in order.
>
> Note that in order to eliminate the indirect calls this patch uses
> global array of const ops to allow compiler to avoid indirect
> branches.
>
> Tested with CONFIG_MITIGATION_RETPOLINE, no performance differences
> were noticed.
>
> Acked-by: E
On Fri, Sep 19, 2025 at 03:31:52PM +0800, Jason Wang wrote:
> Factor out the split indirect descriptor detaching logic in order to
> make it be reused by the in order support.
and I think you mean "allow it to be reused"
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason
On Fri, Sep 19, 2025 at 03:31:52PM +0800, Jason Wang wrote:
> Factor out the split indirect descriptor detaching logic in order to
> make it be reused by the in order support.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason Wang
> ---
> drivers/virtio/virtio_ring.c
+1.7%
> RX: 10.6Mpps | 10.8Mpps| +1.8%
>
> Benchmark also shows no performance impact for in_order=off for queue
> size with 256 and 1024.
>
> Signed-off-by: Jason Wang
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/virtio/virtio_ring.c | 421
Mpps | 5.70Mpps| +1.7%
> RX: 10.6Mpps | 10.8Mpps| +1.8%
>
> Benchmark also shows no performance impact for in_order=off for queue
> size with 256 and 1024.
>
> Signed-off-by: Jason Wang
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/virtio/virt
On Fri, Sep 19, 2025 at 03:31:41PM +0800, Jason Wang wrote:
> Those variants are used internally so let's switch to use
> vring_virtqueue as parameter to be consistent with other internal
> virtqueue helpers.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason Wang
> ---
On Fri, Sep 19, 2025 at 03:31:42PM +0800, Jason Wang wrote:
> Those variants are used internally so let's switch to use
> vring_virtqueue as parameter to be consistent with other internal
> virtqueue helpers.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason Wang
Thi
On Fri, Sep 19, 2025 at 03:31:49PM +0800, Jason Wang wrote:
> Let's determine the last descriptor by counting the number of sg. This
> would be consistent with packed virtqueue implementation and ease the
> future in-order implementation.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Si
On Fri, Sep 19, 2025 at 03:31:50PM +0800, Jason Wang wrote:
> Factor out core logic of buffer detaching and leave the id population
> to the caller so in order can just call the core logic.
>
> Acked-by: Eugenio Pérez
> Reviewed-by: Xuan Zhuo
> Signed-off-by: Jason Wang
> ---
> drivers/virtio/
+1.7%
> RX: 10.6Mpps | 10.8Mpps| +1.8%
>
> Benchmark also shows no performance impact for in_order=off for queue
> size with 256 and 1024.
>
> Signed-off-by: Jason Wang
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/virtio/virtio_ring.c | 421
On Thu, Sep 18, 2025 at 09:52:19AM -0700, Sean Christopherson wrote:
> On Thu, Sep 18, 2025, Michael S. Tsirkin wrote:
> > On Thu, Sep 18, 2025 at 09:04:07AM -0700, Sean Christopherson wrote:
> > > On Thu, Sep 18, 2025, Sebastian Andrzej Siewior wrote:
> > > >
compatibility
sufficiently.
Signed-off-by: Michael S. Tsirkin
Alok Tiwari (1):
vhost-scsi: fix argument order in tport allocation error message
Alyssa Ross (1):
virtio_config: clarify output parameters
Ashwini Sahu (1
OK and now Filip asked me to drop this too.
I am really batting 100x.
Linus pls ignore all this.
Very sorry.
I judge rest of patches here aren't important enough for a pull,
I will want for more patches to land and get tested.
Thanks!
On Thu, Sep 18, 2025 at 11:09:49AM -0400, Michael S. Ts
On Thu, Sep 18, 2025 at 05:45:05PM +0200, Filip Hejsek wrote:
> On Thu, 2025-09-18 at 11:09 -0400, Michael S. Tsirkin wrote:
> > Most notably this reverts a virtio console
> > change since we made it without considering compatibility
> > sufficiently.
>
> It seems t
On Thu, Sep 18, 2025 at 09:04:07AM -0700, Sean Christopherson wrote:
> On Thu, Sep 18, 2025, Sebastian Andrzej Siewior wrote:
> > On 2025-09-18 11:09:05 [-0400], Michael S. Tsirkin wrote:
> > > So how about switching to this approach then?
> > > Instead of piling up f
On Thu, Sep 18, 2025 at 05:48:26PM +0200, Sebastian Andrzej Siewior wrote:
> On 2025-09-18 11:09:05 [-0400], Michael S. Tsirkin wrote:
> > So how about switching to this approach then?
> > Instead of piling up fixes like we seem to do now ...
> > Sean?
>
> Since I am
this reverts a virtio console
change since we made it without considering compatibility
sufficiently.
Signed-off-by: Michael S. Tsirkin
Alok Tiwari (1):
vhost-scsi: fix argument order in tport allocation error message
Alyssa Ro
On Wed, Aug 27, 2025 at 10:10:59PM +0200, Sebastian Andrzej Siewior wrote:
> On 2025-08-27 12:41:04 [-0700], Sean Christopherson wrote:
> > Michael,
>
> Sean,
>
> would the bellow work by chance? It is a quick shot but it looks
> symmetrical…
>
> diff --git
ets to clear the count, this would cause the count run out of sync
> with handle_rx() and break the busy polling.
>
> Fixing this by passing the pointer of the count and clearing it after
> the signaling the used.
>
> Acked-by: Michael S. Tsirkin
> Cc: sta...@vger.kernel.org
&g
On Thu, Sep 18, 2025 at 10:41:44AM -0400, Michael S. Tsirkin wrote:
> The following changes since commit 76eeb9b8de9880ca38696b2fb56ac45ac0a25c6c:
>
> Linux 6.17-rc5 (2025-09-07 14:22:57 -0700)
>
> are available in the Git repository at:
>
> https://git.kernel.org/pub
On Mon, Sep 15, 2025 at 02:03:00PM -0700, Sean Christopherson wrote:
> On Wed, Aug 27, 2025, Sean Christopherson wrote:
> > Michael,
> >
> > Do you want to take this through the vhost tree? It technically fixes a KVM
> > bug, but this obviously touches far more vhost
On Tue, Sep 16, 2025 at 03:20:36PM +0800, Jason Wang wrote:
> On Tue, Sep 16, 2025 at 3:08 PM Michael S. Tsirkin wrote:
> >
> > On Tue, Sep 16, 2025 at 02:24:22PM +0800, Jason Wang wrote:
> > > On Tue, Sep 16, 2025 at 1:19 PM Michael S. Tsirkin
> > > wrote:
>
On Tue, Sep 16, 2025 at 02:24:22PM +0800, Jason Wang wrote:
> On Tue, Sep 16, 2025 at 1:19 PM Michael S. Tsirkin wrote:
> >
> > On Tue, Sep 16, 2025 at 10:37:35AM +0800, Jason Wang wrote:
> > > On Tue, Sep 16, 2025 at 12:03 AM Michael S. Tsirkin
> > > wrote:
>
On Tue, Sep 16, 2025 at 10:37:35AM +0800, Jason Wang wrote:
> On Tue, Sep 16, 2025 at 12:03 AM Michael S. Tsirkin wrote:
> >
> > On Fri, Sep 12, 2025 at 04:26:58PM +0800, Jason Wang wrote:
> > > Commit 8c2e6b26ffe2 ("vhost/net: Defer TX queue re-enable until after
&
On Mon, Sep 15, 2025 at 10:47:03AM +0800, Jason Wang wrote:
> Commit 8c2e6b26ffe2 ("vhost/net: Defer TX queue re-enable until after
> sendmsg") tries to defer the notification enabling by moving the logic
> out of the loop after the vhost_tx_batch() when nothing new is
> spotted. This will bring si
On Tue, Aug 26, 2025 at 01:27:03PM +0200, Eugenio Pérez wrote:
> When used by vhost-vDPA bus driver for VM, the control virtqueue
> should be shadowed via userspace VMM (QEMU) instead of being assigned
> directly to Guest. This is because QEMU needs to know the device state
> in order to start and
On Wed, Aug 27, 2025 at 05:16:35PM -0700, Sean Christopherson wrote:
> On Wed, Aug 27, 2025, Sebastian Andrzej Siewior wrote:
> > On 2025-08-27 12:41:04 [-0700], Sean Christopherson wrote:
> > > Michael,
> >
> > Sean,
> >
> > would the bellow work
sync
with handle_rx() and break the busy polling.
Fixing this by passing the pointer of the count and clearing it after
the signaling the used.
Acked-by: Michael S. Tsirkin
Cc: sta...@vger.kernel.org
Fixes: 67a873df0c41 ("vhost: basic in order support")
Signed-off-by: Ja
6b26ffe2 ("vhost/net: Defer TX queue re-enable until after sendmsg")
Signed-off-by: Jason Wang
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/net.c | 30 +-
1 file changed, 9 insertions(+), 21 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/
2e6b26ffe2 ("vhost/net: Defer TX queue re-enable until after sendmsg")
Signed-off-by: Jason Wang
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/net.c | 17 -
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.
On Fri, Sep 12, 2025 at 04:26:58PM +0800, Jason Wang wrote:
> Commit 8c2e6b26ffe2 ("vhost/net: Defer TX queue re-enable until after
> sendmsg") tries to defer the notification enabling by moving the logic
> out of the loop after the vhost_tx_batch() when nothing new is
> spotted. This will bring si
On Fri, Sep 12, 2025 at 04:06:37PM +0200, Filip Hejsek wrote:
> On Fri, 2025-09-12 at 04:56 -0400, Michael S. Tsirkin wrote:
> > when a previous version of this
> > patch series was being discussed here on this mailing list in 2020, it
> > was decided that QEMU s
On Fri, Sep 12, 2025 at 03:33:32PM +, Jon Kohler wrote:
>
>
> > On Sep 12, 2025, at 11:30 AM, Michael S. Tsirkin wrote:
> >
> > !---|
>
On Fri, Sep 12, 2025 at 03:24:42PM +, Jon Kohler wrote:
>
>
> > On Sep 12, 2025, at 4:50 AM, Michael S. Tsirkin wrote:
> >
> > !---|
>
rompt.
It seems better to just drop the change (it was only in 2 releases so
far), going back to the status quo.
Reported-by: Filip Hejsek
Fixes: 5326ab737a47 ("virtio_console: fix order of fields cols and rows")
Cc: "Maximilian Immanuel Brandtner"
Signed-off-by: Michael S. T
;vhost: basic in order support")
> Signed-off-by: Jason Wang
Acked-by: Michael S. Tsirkin
> ---
> drivers/vhost/net.c | 7 ---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index c6508fe0d5c8..1
On Fri, Sep 12, 2025 at 04:26:58PM +0800, Jason Wang wrote:
> Commit 8c2e6b26ffe2 ("vhost/net: Defer TX queue re-enable until after
> sendmsg") tries to defer the notification enabling by moving the logic
> out of the loop after the vhost_tx_batch() when nothing new is
> spotted. This will bring si
rompt.
NB: the command structures really should move to the UAPI header so it
is easier to notice when a change is breaking the guest/host ABI.
Reported-by: Filip Hejsek
Fixes: 5326ab737a47 ("virtio_console: fix order of fields cols and rows")
Cc: "Maximilian Immanuel Brandtner"
On Thu, Sep 11, 2025 at 01:49:05PM +0800, Jason Wang wrote:
> On Thu, Sep 11, 2025 at 4:11 AM Michael S. Tsirkin wrote:
> >
> > On Wed, Sep 10, 2025 at 06:58:18PM +, Jon Kohler wrote:
> > >
> > >
> > > > On May 5, 2025, at 9:40
On Wed, Sep 10, 2025 at 06:58:18PM +, Jon Kohler wrote:
>
>
> > On May 5, 2025, at 9:40 PM, patchwork-bot+netdev...@kernel.org wrote:
> >
> > Hello:
> >
> > This patch was applied to netdev/net-next.git (main)
> > by Jakub Kicinski :
>
> Hey all,
> Writing to fire up a flare and point out
On Tue, Sep 02, 2025 at 10:09:55AM +0200, Simon Schippers wrote:
> The netdev queue is stopped in tun_net_xmit after inserting an SKB into
> the ring buffer if the ring buffer became full because of that. If the
> insertion into the ptr_ring fails, the netdev queue is also stopped and
> the SKB is
is cuteness of looking at the consumer is actually not necessary,
and bad for cache.
You just want this:
Signed-off-by: Michael S. Tsirkin
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index 551329220e4f..de25fe81dd4e 100644
--- a/include/linux/ptr_ring.h
+++ b/include/
On Tue, Sep 02, 2025 at 10:09:54AM +0200, Simon Schippers wrote:
> The implementation is inspired by ptr_ring_empty.
>
> Co-developed-by: Tim Gebauer
> Signed-off-by: Tim Gebauer
> Signed-off-by: Simon Schippers
> ---
> include/linux/ptr_ring.h | 71
>
in shmem affecting drm users.
Signed-off-by: Michael S. Tsirkin
Igor Torrente (1):
Revert "virtio: reject shm region if length is zero"
Junnan Wu (1):
virtio_net: adjust the execution order of function `vir
On Tue, Aug 26, 2025 at 07:03:33AM -0700, Sean Christopherson wrote:
> On Tue, Aug 26, 2025, Michael S. Tsirkin wrote:
> > On Mon, Aug 25, 2025 at 05:40:09PM -0700, Sean Christopherson wrote:
> > > Provide an API in vhost task instead of forcing KVM to solve the problem,
On Tue, Aug 26, 2025 at 07:03:33AM -0700, Sean Christopherson wrote:
> On Tue, Aug 26, 2025, Michael S. Tsirkin wrote:
> > On Mon, Aug 25, 2025 at 05:40:09PM -0700, Sean Christopherson wrote:
> > > Provide an API in vhost task instead of forcing KVM to solve the problem,
On Mon, Aug 25, 2025 at 05:40:09PM -0700, Sean Christopherson wrote:
> Add a vhost_task_wake_safe() variant to handle the case where a vhost task
> has exited due to a signal, i.e. before being explicitly stopped by the
> owner of the task, and use the "safe" API in KVM when waking NX hugepage
> re
erf build warnings:
>
> Warning: Kernel ABI header differences:
> diff -u tools/perf/trace/beauty/include/uapi/linux/vhost.h
> include/uapi/linux/vhost.h
>
> Please see tools/include/uapi/README for further details.
>
> Cc: "Michael S. Tsirkin"
> Cc: J
On 2025-08-20 08:55, Mathieu Desnoyers wrote:
Michael, can you try it out ?
Tested on Debian 13 amd64 (Glibc 2.41 and GCC 14.2.0), no segfaults, all
the rseq tests pass.
On 2025-08-20 08:55, Mathieu Desnoyers wrote:
Michael, can you try it out ?
Will do.
Kienan, we may want to add a configuration forcing "-fno-common" to our
CI, this problematic pattern may be hiding other issues elsewhere. I'm
thinking of LTTng-UST tracepoint headers and
On Mon, Aug 18, 2025 at 11:39:57PM -0700, Namhyung Kim wrote:
> The VHOST_[GS]ET_FEATURES_ARRAY ioctl already took 0x83 and it would
> result in a build error when the vhost uapi header is used for perf tool
> build like below.
>
> In file included from trace/beauty/ioctl.c:93:
> tools/perf/tr
1] https://lore.kernel.org/all/689a3d92.050a0220.7f033.00ff@google.com/
Acked-by: Michael S. Tsirkin
> Cc: Alexander Viro
> Cc: Christian Brauner
> Cc: "David S. Miller"
> Cc: Eric Dumazet
> Cc: Hillf Danton
> Cc: Jakub Kicinski
> Cc: Jason Wang
> Cc: "Michael
On Mon, Aug 18, 2025 at 11:09:44AM +0200, Eugenio Perez Martin wrote:
> On Thu, Aug 14, 2025 at 12:42 PM Michael S. Tsirkin wrote:
> >
> > On Thu, Aug 14, 2025 at 11:36:22AM +0800, Jason Wang wrote:
> > > > > diff --git a/include/linux/virtio.h b/include/
On Sat, Aug 16, 2025 at 01:05:21PM +0200, Alyssa Ross wrote:
> "Michael S. Tsirkin" writes:
>
> > On Fri, Aug 15, 2025 at 09:19:34PM +0200, Alyssa Ross wrote:
> >> Alyssa Ross writes:
> >>
> >> > On Mon, May 12, 2025 at 07:51:53A
On Fri, Aug 15, 2025 at 08:07:46PM +0800, Hillf Danton wrote:
> On Fri, 15 Aug 2025 06:22:56 -0400 "Michael S. Tsirkin" wrote:
> > On Wed, Aug 13, 2025 at 09:25:53PM +0800, Hillf Danton wrote:
> > > On Wed, 13 Aug 2025 04:41:09 -0400 "Michael S. Tsirkin" wro
On Fri, Aug 15, 2025 at 09:19:34PM +0200, Alyssa Ross wrote:
> Alyssa Ross writes:
>
> > On Mon, May 12, 2025 at 07:51:53AM +0930, samiuddinsami.md...@gmail.com
> > wrote:
> >> From: Sami Uddin
> >>
> >> Prevent usage of shared memory regions where the length is zero,
> >> as such configuration
On Fri, Aug 15, 2025 at 04:48:00PM +0100, Will Deacon wrote:
> On Fri, Aug 15, 2025 at 01:00:59PM +0100, Will Deacon wrote:
> > On Fri, Aug 15, 2025 at 06:44:47AM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Aug 15, 2025 at 11:09:24AM +0100, Will Deacon wrote:
> > > &
On Fri, Aug 15, 2025 at 11:09:24AM +0100, Will Deacon wrote:
> On Tue, Aug 12, 2025 at 06:15:46AM -0400, Michael S. Tsirkin wrote:
> > On Tue, Aug 12, 2025 at 03:03:02AM -0700, syzbot wrote:
> > > Hello,
> > >
> > > syzbot has tested the propos
On Wed, Aug 13, 2025 at 09:25:53PM +0800, Hillf Danton wrote:
> On Wed, 13 Aug 2025 04:41:09 -0400 "Michael S. Tsirkin" wrote:
> > On Thu, Jul 17, 2025 at 10:01:16AM +0100, Will Deacon wrote:
> > > When transmitting a vsock packet, virtio_tra
On Fri, Aug 15, 2025 at 09:02:09AM +0800, Jason Wang wrote:
> On Thu, Aug 14, 2025 at 6:42 PM Michael S. Tsirkin wrote:
> >
> > On Thu, Aug 14, 2025 at 11:36:22AM +0800, Jason Wang wrote:
> > > > > diff --git a/include/linux/virtio.h b/include/linux/virtio.
On Thu, Aug 14, 2025 at 11:36:22AM +0800, Jason Wang wrote:
> > > diff --git a/include/linux/virtio.h b/include/linux/virtio.h
> > > index addbc209275a..37029df94aaf 100644
> > > --- a/include/linux/virtio.h
> > > +++ b/include/linux/virtio.h
> > > @@ -40,6 +40,13 @@ struct virtqueue {
> > >
On Wed, Aug 13, 2025 at 01:48:26PM +0800, Jason Wang wrote:
> Following patch will introduce the mapping operations for virtio
> device. In order to achieve this, besides the dma device, virtio core
> needs to support a transport or device specific mapping token as well.
> So this patch introduces
On Wed, Aug 13, 2025 at 01:48:26PM +0800, Jason Wang wrote:
> Following patch will introduce the mapping operations for virtio
> device. In order to achieve this, besides the dma device, virtio core
> needs to support a transport or device specific mapping token as well.
> So this patch introduces
On Thu, Jul 17, 2025 at 10:01:16AM +0100, Will Deacon wrote:
> When transmitting a vsock packet, virtio_transport_send_pkt_info() calls
> virtio_transport_alloc_linear_skb() to allocate and fill SKBs with the
> transmit data. Unfortunately, these are always linear allocations and
> can therefore re
On Tue, Aug 12, 2025 at 03:03:02AM -0700, syzbot wrote:
> Hello,
>
> syzbot has tested the proposed patch but the reproducer is still triggering
> an issue:
> WARNING in virtio_transport_send_pkt_info
OK so the issue triggers on
commit 6693731487a8145a9b039bc983d77edc47693855
Author: Will Deacon
On Mon, Aug 11, 2025 at 11:59:30AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:37816488247d Merge tag 'net-6.17-rc1' of git://git.kernel...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=10b3b2f058
> kernel
On Mon, Aug 11, 2025 at 11:59:30AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:37816488247d Merge tag 'net-6.17-rc1' of git://git.kernel...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=10b3b2f058
> kernel
to be adjacent to Signed-off-by.
But anyway, I already included v1 in my tree, pls check it out
and tell me if more fixes are needed.
> ---
> v2: Improve the commit message (Michael S. Tsirkin)
>
> include/linux/virtio_config.h | 2 --
> 1 file changed, 2 deletions(-)
>
host.
Signed-off-by: Michael S. Tsirkin
Jason Wang (1):
vhost: initialize vq->nheads properly
drivers/vhost/vhost.c | 1 +
1 file changed, 1 insertion(+)
On Thu, Aug 07, 2025 at 09:41:45AM -0300, Igor Torrente wrote:
> This reverts commit 206cc44588f72b49ad4d7e21a7472ab2a72a83df.
>
No that's not enough. Explain the why not the what.
for example
---
The commit 206cc44588f7 ("virtio: reject shm region if length is zero")
breaks the Virtio-gpu
On Wed, Aug 06, 2025 at 03:34:55PM -0300, Igor Torrente wrote:
> Hello,
>
> The commit `206cc44588f7 virtio: reject shm region if length is zero` breaks
> the Virtio-gpu `host_visible` feature.
>
> As you can see in the snippet below, host_visible_region is zero because of
> the `kzalloc`.
> I
On Fri, Jul 18, 2025 at 02:03:55PM +0300, Nikolay Kuratov wrote:
> When operating on struct vhost_net_ubuf_ref, the following execution
> sequence is theoretically possible:
> CPU0 is finalizing DMA operation CPU1 is doing
> VHOST_NET_SET_BACKEND
> //
On Mon, Aug 04, 2025 at 05:05:57PM +0800, Jason Wang wrote:
> Hi Michael:
>
> On Tue, Jul 29, 2025 at 3:39 PM Jason Wang wrote:
> >
> > Commit 7918bb2d19c9 ("vhost: basic in order support") introduces
> > vq->nheads to store the number of batched used buf
On Fri, Aug 01, 2025 at 09:03:35AM -0400, Michael S. Tsirkin wrote:
> On Fri, Aug 01, 2025 at 07:00:32AM -0400, Michael S. Tsirkin wrote:
> > The following changes since commit 347e9f5043c89695b01e66b3ed111755afcf1911:
> >
> > Linux 6.16-rc6 (2025-07-13 14:25:58 -0700)
>
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