On Thu, May 14, 2020 at 03:25:49PM +0800, Jason Wang wrote:
> We reset IOTLB during device reset this breaks the assumption that the
> mapping needs to be controlled via vDPA DMA ops explicitly in a
> incremental way. So the networking will be broken after e.g a guest
> reset.
>
> Fix this by not
On Thu, May 14, 2020 at 01:22:37PM +0530, Bharat Bhushan wrote:
> Different endpoint can support different page size, probe
> endpoint if it supports specific page size otherwise use
> global page sizes.
>
> Device attached to domain should support a minimum of
> domain supported page sizes. If de
On Wed, Mar 11, 2020 at 08:20:04PM +0900, David Stevens wrote:
> Add support for UUID-based resource sharing mechanism to virtgpu. This
> implements the new virtgpu commands and hooks them up to dma-buf's
> get_uuid callback.
>
> Signed-off-by: David Stevens
> ---
> drivers/gpu/drm/virtio/virtgp
On Tue, May 05, 2020 at 03:00:04PM +0530, Bharat Bhushan wrote:
> Different endpoint can support different page size, probe
> endpoint if it supports specific page size otherwise use
> global page sizes.
>
> Signed-off-by: Bharat Bhushan
> ---
> v4->v5:
> - Rebase to Linux v5.7-rc4
>
> v3->v4:
On Fri, May 08, 2020 at 12:52:34PM -0400, Michael S. Tsirkin wrote:
> On Wed, Apr 22, 2020 at 05:26:32PM -0700, Daniel Colascione wrote:
> > This sysctl can be set to either zero or one. When zero (the default)
> > the system lets all users call userfaultfd with or without
> >
On Wed, Apr 22, 2020 at 05:26:32PM -0700, Daniel Colascione wrote:
> This sysctl can be set to either zero or one. When zero (the default)
> the system lets all users call userfaultfd with or without
> UFFD_USER_MODE_ONLY, modulo other access controls. When
> unprivileged_userfaultfd_user_mode_only
On Thu, May 07, 2020 at 02:51:32PM +0200, Auger Eric wrote:
> Hi,
>
> On 5/7/20 1:32 PM, Michael S. Tsirkin wrote:
> > On Thu, May 07, 2020 at 11:24:29AM +, Bharat Bhushan wrote:
> >>
> >>
> >>> -----Original Message-
> >>> From: Mi
On Thu, May 07, 2020 at 01:37:30PM +0200, David Hildenbrand wrote:
> On 07.05.20 13:34, Michael S. Tsirkin wrote:
> > On Thu, May 07, 2020 at 01:33:23PM +0200, David Hildenbrand wrote:
> >>>> I get:
> >>>>
> >>>> error: sha1 information is
On Thu, May 07, 2020 at 01:24:38PM +0200, David Hildenbrand wrote:
> On 07.05.20 12:46, Michael S. Tsirkin wrote:
> > On Thu, May 07, 2020 at 12:31:11PM +0200, David Hildenbrand wrote:
> >> virtio-mem wants to offline and remove a memory block once it unplugged
> >>
On Thu, May 07, 2020 at 01:33:23PM +0200, David Hildenbrand wrote:
> >> I get:
> >>
> >> error: sha1 information is lacking or useless (mm/memory_hotplug.c).
> >> error: could not build fake ancestor
> >>
> >> which version is this against? Pls post patches on top of some tag
> >> in Linus' tree if
On Thu, May 07, 2020 at 11:24:29AM +, Bharat Bhushan wrote:
>
>
> > -Original Message-
> > From: Michael S. Tsirkin
> > Sent: Wednesday, May 6, 2020 5:53 AM
> > To: Bharat Bhushan
> > Cc: jean-phili...@linaro.org; j...@8bytes.org; jasow...@redhat
On Thu, May 07, 2020 at 12:31:04PM +0200, David Hildenbrand wrote:
> This series is based on latest linux-next. The patches are located at:
> https://github.com/davidhildenbrand/linux.git virtio-mem-v3
>
> Patch #1 - #10 where contained in v2 and only contain minor modifications
> (mostly smal
On Thu, May 07, 2020 at 12:31:09PM +0200, David Hildenbrand wrote:
> virtio-mem wants to allow to offline memory blocks of which some parts
> were unplugged (allocated via alloc_contig_range()), especially, to later
> offline and remove completely unplugged memory blocks. The important part
> is th
On Thu, May 07, 2020 at 12:31:14PM +0200, David Hildenbrand wrote:
> Let's make sure patches/bug reports find the right person.
>
> Cc: "Michael S. Tsirkin"
> Signed-off-by: David Hildenbrand
Make this patch 2 in the series, or even squash into patch 1.
> ---
&
On Thu, May 07, 2020 at 12:31:11PM +0200, David Hildenbrand wrote:
> virtio-mem wants to offline and remove a memory block once it unplugged
> all subblocks (e.g., using alloc_contig_range()). Let's provide
> an interface to do that from a driver. virtio-mem already supports to
> offline partially
down the warning by switching
to u64_stats_update_begin_irqsave - that works by disabling
interrupts on 32 bit only, is a NOP on 64 bit.
Reported-by: Thomas Gleixner
Suggested-by: Eric Dumazet
Signed-off-by: Michael S. Tsirkin
---
changes from v1:
builds now. lightly tested
drivers/ne
On Wed, May 06, 2020 at 04:21:15PM +0800, Jason Wang wrote:
>
> On 2020/5/6 下午3:37, Michael S. Tsirkin wrote:
> > On Wed, May 06, 2020 at 02:16:33PM +0800, Jason Wang wrote:
> > > We should not exclude headroom and tailroom when XDP is set. So this
> > > patch
On Wed, May 06, 2020 at 04:37:41PM +0800, Jason Wang wrote:
>
> On 2020/5/6 下午4:08, Michael S. Tsirkin wrote:
> > So for mergeable bufs, we use ewma machinery to guess the correct buffer
> > size. If we don't guess correctly, XDP has to do aggressive copies.
> >
>
On Wed, May 06, 2020 at 10:37:57AM +0200, Jesper Dangaard Brouer wrote:
> On Wed, 6 May 2020 04:08:27 -0400
> "Michael S. Tsirkin" wrote:
>
> > So for mergeable bufs, we use ewma machinery to guess the correct buffer
> > size. If we don't guess correc
On Wed, May 06, 2020 at 04:19:40PM +0800, Jason Wang wrote:
>
> On 2020/5/6 下午3:53, Michael S. Tsirkin wrote:
> > On Wed, May 06, 2020 at 02:16:32PM +0800, Jason Wang wrote:
> > > We tried to reserve space for vnet header before
> > > xdp.data_hard_start. But th
On Wed, May 06, 2020 at 04:34:36PM +0800, Jason Wang wrote:
>
> On 2020/5/6 下午4:21, Jesper Dangaard Brouer wrote:
> > On Wed, 6 May 2020 14:16:32 +0800
> > Jason Wang wrote:
> >
> > > We tried to reserve space for vnet header before
> > > xdp.data_hard_start. But this is useless since the packe
On Wed, May 06, 2020 at 11:25:46AM +0200, Stefano Garzarella wrote:
> On Wed, May 06, 2020 at 03:19:55AM -0400, Michael S. Tsirkin wrote:
> > On Wed, May 06, 2020 at 03:28:47AM +, Justin He wrote:
> > > Hi Michael
> > >
> > > > -----Original Messag
So for mergeable bufs, we use ewma machinery to guess the correct buffer
size. If we don't guess correctly, XDP has to do aggressive copies.
Problem is, xdp paths do not update the ewma at all, except
sometimes with XDP_PASS. So whatever we happen to have
before we attach XDP, will mostly stay aro
On Wed, May 06, 2020 at 02:16:32PM +0800, Jason Wang wrote:
> We tried to reserve space for vnet header before
> xdp.data_hard_start. But this is useless since the packet could be
> modified by XDP which may invalidate the information stored in the
> header and there's no way for XDP to know the ex
On Wed, May 06, 2020 at 02:16:33PM +0800, Jason Wang wrote:
> We should not exclude headroom and tailroom when XDP is set. So this
> patch fixes this by initializing the truesize from PAGE_SIZE when XDP
> is set.
>
> Cc: Jesper Dangaard Brouer
> Signed-off-by: Jason Wang
Seems too aggressive, w
On Wed, May 06, 2020 at 03:28:47AM +, Justin He wrote:
> Hi Michael
>
> > -Original Message-
> > From: Michael S. Tsirkin
> > Sent: Monday, May 4, 2020 8:16 PM
> > To: Linus Torvalds
> > Cc: k...@vger.kernel.org; virtualizat...@lists.linux-founda
On Fri, Apr 10, 2020 at 07:54:22PM +0800, YueHaibing wrote:
> drivers/vdpa/vdpa_sim/vdpa_sim.c:92:6: warning:
> variable ‘ret’ set but not used [-Wunused-but-set-variable]
>
> Signed-off-by: YueHaibing
> ---
Either this, or BUG_ON. Jason?
> drivers/vdpa/vdpa_sim/vdpa_sim.c | 15 +++--
On Tue, May 05, 2020 at 03:00:04PM +0530, Bharat Bhushan wrote:
> Different endpoint can support different page size, probe
> endpoint if it supports specific page size otherwise use
> global page sizes.
>
> Signed-off-by: Bharat Bhushan
> ---
> v4->v5:
> - Rebase to Linux v5.7-rc4
>
> v3->v4:
32 bit only, is a NOP on 64 bit.
Reported-by: Thomas Gleixner
Suggested-by: Eric Dumazet
Signed-off-by: Michael S. Tsirkin
---
I'm not thrilled about this but this seems the best we can do for now.
Completely untested.
Thomas, can you pls let me know the config I need to trigger the wa
0b841030625cde5f784dd62aec72d6a766faae70:
vhost: vsock: kick send_pkt worker once device is started (2020-05-02
10:28:21 -0400)
virtio: fixes
A couple of bug fixes.
Signed-off-by: Michael S. Tsirkin
On Mon, May 04, 2020 at 01:48:34PM +0200, Cornelia Huck wrote:
> On Thu, 30 Apr 2020 15:04:42 +0100
> Stefan Hajnoczi wrote:
>
> > A userspace process holding a file descriptor to a virtio_blk device can
> > still invoke block_device_operations after hot unplug. This leads to a
> > use-after-fre
6 PM
> > > To: Justin He
> > > Cc: Stefan Hajnoczi ; Michael S. Tsirkin
> > > ; Jason Wang ;
> > > k...@vger.kernel.org; virtualizat...@lists.linux-foundation.org;
> > > net...@vger.kernel.org; linux-kernel@vger.kernel.org; Kaly Xin
> > >
&
On Thu, Apr 30, 2020 at 07:03:21PM +0530, Srivatsa Vaddagiri wrote:
> * Jan Kiszka [2020-04-30 14:59:50]:
>
> > >I believe ivshmem2_virtio requires hypervisor to support PCI device
> > >emulation
> > >(for life-cycle management of VMs), which our hypervisor may not support.
PCI is mostly just 2
On Thu, Apr 30, 2020 at 11:14:10AM +0100, Stefan Hajnoczi wrote:
> On Thu, Apr 30, 2020 at 10:43:23AM +0200, Stefano Garzarella wrote:
> > On Wed, Apr 29, 2020 at 05:53:45PM +0100, Stefan Hajnoczi wrote:
> > > A userspace process holding a file descriptor to a virtio_blk device can
> > > still invo
On Thu, Apr 30, 2020 at 03:32:55PM +0530, Srivatsa Vaddagiri wrote:
> The Type-1 hypervisor we are dealing with does not allow for MMIO transport.
How about PCI then?
--
MST
On Wed, Apr 29, 2020 at 04:23:04PM +0200, Arnd Bergmann wrote:
> During randconfig build testing, I ran into a configuration that has
> CONFIG_VHOST=m, CONFIG_VHOST_IOTLB=m and CONFIG_VHOST_RING=y, which
> makes the iotlb implementation left out from vhost_ring, and in turn
> leads to a link failur
On Wed, Apr 29, 2020 at 12:26:43PM +0200, Jan Kiszka wrote:
> On 29.04.20 12:20, Michael S. Tsirkin wrote:
> > On Wed, Apr 29, 2020 at 03:39:53PM +0530, Srivatsa Vaddagiri wrote:
> > > That would still not work I think where swiotlb is used for pass-thr
> > > devices
&g
On Wed, Apr 29, 2020 at 03:39:53PM +0530, Srivatsa Vaddagiri wrote:
> That would still not work I think where swiotlb is used for pass-thr devices
> (when private memory is fine) as well as virtio devices (when shared memory is
> required).
So that is a separate question. When there are multiple u
On Wed, Apr 29, 2020 at 03:14:10PM +0530, Srivatsa Vaddagiri wrote:
> * Michael S. Tsirkin [2020-04-29 02:50:41]:
>
> > So it seems that with modern Linux, all one needs
> > to do on x86 is mark the device as untrusted.
> > It's already possible to do this with ACP
On Wed, Apr 29, 2020 at 01:42:13PM +0800, Lu Baolu wrote:
> On 2020/4/29 12:57, Michael S. Tsirkin wrote:
> > On Wed, Apr 29, 2020 at 10:22:32AM +0800, Lu Baolu wrote:
> > > On 2020/4/29 4:41, Michael S. Tsirkin wrote:
> > > > On Tue, Apr 28, 2020 at 11:19:52PM +
On Wed, Apr 29, 2020 at 10:22:32AM +0800, Lu Baolu wrote:
> On 2020/4/29 4:41, Michael S. Tsirkin wrote:
> > On Tue, Apr 28, 2020 at 11:19:52PM +0530, Srivatsa Vaddagiri wrote:
> > > * Michael S. Tsirkin [2020-04-28 12:17:57]:
> > >
> > > > Okay, but how is
On Tue, Apr 28, 2020 at 11:19:52PM +0530, Srivatsa Vaddagiri wrote:
> * Michael S. Tsirkin [2020-04-28 12:17:57]:
>
> > Okay, but how is all this virtio specific? For example, why not allow
> > separate swiotlbs for any type of device?
> > For example, this might make se
On Tue, Apr 28, 2020 at 05:09:18PM +0530, Srivatsa Vaddagiri wrote:
> For better security, its desirable that a guest VM's memory is
> not accessible to any entity that executes outside the context of
> guest VM. In case of virtio, backend drivers execute outside the
> context of guest VM and in ge
On Tue, Apr 28, 2020 at 04:57:15PM +0100, Stefan Hajnoczi wrote:
> On Tue, Apr 28, 2020 at 11:25:07AM -0400, Michael S. Tsirkin wrote:
> > On Tue, Apr 28, 2020 at 03:30:09PM +0100, Stefan Hajnoczi wrote:
> > > A userspace process holding a file descriptor to a virtio_blk devi
On Tue, Apr 28, 2020 at 03:30:09PM +0100, Stefan Hajnoczi wrote:
> A userspace process holding a file descriptor to a virtio_blk device can
> still invoke block_device_operations after hot unplug. For example, a
> program that has /dev/vdb open can call ioctl(HDIO_GETGEO) after hot
> unplug to inv
245cdd9fbd396483d501db83047116e2530f245f:
vhost/test: stop device before reset (2019-10-13 09:38:27 -0400)
virtio: fixes
Some minor bugfixes
Signed-off-by: Michael S. Tsirkin
Michael S
On Mon, Oct 14, 2019 at 09:43:25AM +0800, Jason Wang wrote:
>
> On 2019/10/13 上午4:27, Michael S. Tsirkin wrote:
> > On Sat, Oct 12, 2019 at 03:28:49PM +0800, Jason Wang wrote:
> > > On 2019/10/11 下午9:45, Michael S. Tsirkin wrote:
> > > > The idea is to support mu
On Sun, Oct 13, 2019 at 03:29:34PM +0200, Jan Kiszka wrote:
> On 13.10.19 14:20, Michael S. Tsirkin wrote:
> > On Sun, Oct 13, 2019 at 02:01:03PM +0200, Jan Kiszka wrote:
> >> On 13.10.19 13:52, Michael S. Tsirkin wrote:
> >>> On Sun, Oct 13, 2019 at 11:03:30AM +0200,
On Sun, Oct 13, 2019 at 02:01:03PM +0200, Jan Kiszka wrote:
> On 13.10.19 13:52, Michael S. Tsirkin wrote:
> > On Sun, Oct 13, 2019 at 11:03:30AM +0200, Jan Kiszka wrote:
> >> From: Jan Kiszka
> >>
> >> Various changes in the recent kernel versions broke the bu
On Sun, Oct 13, 2019 at 11:03:30AM +0200, Jan Kiszka wrote:
> From: Jan Kiszka
>
> Various changes in the recent kernel versions broke the build due to
> missing function and header stubs.
>
> Signed-off-by: Jan Kiszka
Thanks!
I think it's already fixes in the vhost tree.
That tree also includ
With this patch applied, new and old code perform identically.
Lots of extra optimizations are now possible, e.g.
we can fetch multiple heads with copy_from/to_user now.
We can get rid of maintaining the log array. Etc etc.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 2
Add a writeable module parameter that tests
the new code. Note: no effort was made to ensure
things work correctly if the parameter is changed
while the device is open. Make sure to
close the device before changing its value.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/net.c | 32
x27;s been kept as simple as possible for ease of review.
A follow-up patch gets us back the performance by adding batching.
To simplify benchmarking, I kept the old code around so one can switch
back and forth between old and new code. This will go away in the final
submission.
Signed-off-by: Mich
in response to comment by Jason Wang
- minor code tweaks
Changes from v2:
- fixed indirect descriptor batching
reported by Jason Wang
Changes from v1:
- typo fixes
Michael S. Tsirkin (5):
vhost: option to fetch descriptors through an independent struct
Add a writeable module parameter that tests
the new code. Note: no effort was made to ensure
things work correctly if the parameter is changed
while the device is open. Make sure to
close the device before changing its value.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 17
fetch_buf already guarantees we exit on a descriptor without a NEXT
flag. Add a BUG_ON statement to make sure we don't overflow the buffer
in case of a bug.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/vhost.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/vhost/vhos
Add a writeable module parameter that tests
the new code. Note: no effort was made to ensure
things work correctly if the parameter is changed
while the device is open. Make sure to
close the device before changing its value.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/net.c | 32
With this patch applied, new and old code perform identically.
Lots of extra optimizations are now possible, e.g.
we can fetch multiple heads with copy_from/to_user now.
We can get rid of maintaining the log array. Etc etc.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 2
use new code:
echo 1 > /sys/module/vhost_test/parameters/newcode
or
echo 1 > /sys/module/vhost_net/parameters/newcode
Changes from v2:
- fixed indirect descriptor batching
Changes from v1:
- typo fixes
Michael S. Tsirkin (4):
vhost: option to fetch descr
Add a writeable module parameter that tests
the new code. Note: no effort was made to ensure
things work correctly if the parameter is changed
while the device is open. Make sure to
close the device before changing its value.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 17
x27;s been kept as simple as possible for ease of review.
A follow-up patch gets us back the performance by adding batching.
To simplify benchmarking, I kept the old code around so one can switch
back and forth between old and new code. This will go away in the final
submission.
Signed-off-by: Mich
On Fri, Oct 11, 2019 at 04:34:57PM +0200, Stefano Garzarella wrote:
> On Fri, Oct 11, 2019 at 10:19:13AM -0400, Michael S. Tsirkin wrote:
> > On Fri, Oct 11, 2019 at 03:07:56PM +0200, Stefano Garzarella wrote:
> > > We are implementing a test suite for the VSOCK sockets
On Sat, Oct 12, 2019 at 03:31:50PM +0800, Jason Wang wrote:
>
> On 2019/10/11 下午9:45, Michael S. Tsirkin wrote:
> > So the idea is as follows: we convert descriptors to an
> > independent format first, and process that converting to
> > iov later.
> >
> > Th
On Sat, Oct 12, 2019 at 03:30:52PM +0800, Jason Wang wrote:
>
> On 2019/10/11 下午9:46, Michael S. Tsirkin wrote:
> > With this patch applied, new and old code perform identically.
> >
> > Lots of extra optimizations are now possible, e.g.
> > we can fetch multiple he
On Sat, Oct 12, 2019 at 03:28:49PM +0800, Jason Wang wrote:
>
> On 2019/10/11 下午9:45, Michael S. Tsirkin wrote:
> > The idea is to support multiple ring formats by converting
> > to a format-independent array of descriptors.
> >
> > This costs extra cycles, but we
On Sat, Oct 12, 2019 at 04:15:42PM +0800, Jason Wang wrote:
>
> On 2019/10/11 下午9:45, Michael S. Tsirkin wrote:
> > So the idea is as follows: we convert descriptors to an
> > independent format first, and process that converting to
> > iov later.
> >
> > Th
can switch back and forth by
writing into a module parameter.
This will go away in the final submission.
This patch causes a minor performance degradation,
it's been kept as simple as possible for ease of review.
Next patch gets us back the performance by adding batching.
Signed-off-by: Mich
With this patch applied, new and old code perform identically.
Lots of extra optimizations are now possible, e.g.
we can fetch multiple heads with copy_from/to_user now.
We can get rid of maintaining the log array. Etc etc.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 2
this first step is ready to go in is to
batch indirect descriptors as well.
Integrating into vhost-net is basically
s/vhost_get_vq_desc/vhost_get_vq_desc_batch/ -
or add a module parameter like I did in the test module.
Changes from v1:
- typo fixes
Michael S. Tsirkin (2):
vhost
On Fri, Oct 11, 2019 at 03:07:58PM +0200, Stefano Garzarella wrote:
> vmci_transport never allowed half-closed socket on the host side.
> In order to provide the same behaviour, we changed the
> vhost_transport_stream_has_data() to return 0 (no data available)
> if the peer (guest) closed the conne
On Fri, Oct 11, 2019 at 03:07:57PM +0200, Stefano Garzarella wrote:
> vmci_transport never allowed half-closed socket on the host side.
> Since we want to have the same behaviour across all transports, we
> add a section in the "Implementation notes".
>
> Cc: Jorgen Hansen
> Cc: Adit Ranadive
>
On Fri, Oct 11, 2019 at 03:07:56PM +0200, Stefano Garzarella wrote:
> We are implementing a test suite for the VSOCK sockets and we discovered
> that vmci_transport never allowed half-closed socket on the host side.
>
> As Jorgen explained [1] this is due to the implementation of VMCI.
>
> Since
On Fri, Oct 11, 2019 at 03:40:48PM +0200, Stefano Garzarella wrote:
> On Sun, Sep 1, 2019 at 8:56 AM Michael S. Tsirkin wrote:
> > On Fri, Aug 30, 2019 at 11:40:59AM +0200, Stefano Garzarella wrote:
> > > On Mon, Jul 29, 2019 at 10:04:29AM -0400, Michael S. Tsirkin wrote:
>
With this patch applied, new and old code perform identically.
Lots of extra optimizations are now possible, e.g.
we can fetch multiple heads with copy_from/to_user now.
We can get rid of maintaining the log array. Etc etc.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c | 2
can switch back and forth by
writing into a module parameter.
This will go away in the final submission.
This patch causes a minor performance degradation,
it's been kept as simple as possible for ease of review.
Next patch gets us back the performance by adding batching.
Signed-off-by: Mich
.
Michael S. Tsirkin (2):
vhost: option to fetch descriptors through an independent struct
vhost: batching fetches
drivers/vhost/test.c | 19 ++-
drivers/vhost/vhost.c | 333 +-
drivers/vhost/vhost.h | 20 ++-
3 files changed, 365 insertions(+), 7
When device stop was moved out of reset, test device wasn't updated to
stop before reset, this resulted in a use after free. Fix by invoking
stop appropriately.
Fixes: b211616d7125 ("vhost: move -net specific code out")
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/test.c
On Sun, Oct 06, 2019 at 03:45:15PM -0300, jcfara...@gmail.com wrote:
> From: Julio Faracco
>
> To enable dev_watchdog, virtio_net should have a tx_timeout defined
> (.ndo_tx_timeout). This is only a skeleton to throw a warn message. It
> notifies the event in some specific queue of device. This
On Sun, Oct 06, 2019 at 03:45:13PM -0300, jcfara...@gmail.com wrote:
> From: Julio Faracco
>
> Driver virtio_net is not handling error events for TX provided by
> dev_watchdog. This event is reached when transmission queue is having
> problems to transmit packets. To enable it, driver should ha
On Tue, Oct 01, 2019 at 09:21:46AM -0700, Alexander Duyck wrote:
> I thought what Michal was asking for was what was the benefit of using the
> boundary pointer. I added a bit up above and to the description for patch
> 3 as on a 32G VM it adds up to about a 18% difference without factoring in
> th
On Fri, Sep 27, 2019 at 09:17:56PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午8:46, Michael S. Tsirkin wrote:
> > On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
> > > On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
> > > > On Fri, Sep 27, 2019 at 1
On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
> > On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
> > > On 2019/9/26 下午9:14, Tiwei Bie wrote:
> > > > On Thu, Sep 26, 2019 at 04:35:18A
On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
>
> On 2019/9/26 下午9:14, Tiwei Bie wrote:
> > On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
> > > On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
> > [...]
> > > >
On Fri, Sep 27, 2019 at 04:47:43PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午12:54, Tiwei Bie wrote:
> > On Fri, Sep 27, 2019 at 11:46:06AM +0800, Jason Wang wrote:
> > > On 2019/9/26 下午12:54, Tiwei Bie wrote:
> > > > +
> > > > +static long vhost_mdev_start(struct vhost_mdev *m)
> > > > +{
> > >
On Thu, Sep 26, 2019 at 09:14:39PM +0800, Tiwei Bie wrote:
> > 4. Does device need to limit max ring size?
> > 5. Does device need to limit max number of queues?
>
> I think so. It's helpful to have ioctls to report the max
> ring size and max number of queues.
Also, let's not repeat the vhost ne
On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
> This patch introduces a mdev based hardware vhost backend.
> This backend is built on top of the same abstraction used
> in virtio-mdev and provides a generic vhost interface for
> userspace to accelerate the virtio devices in guest.
>
>
On Sun, Sep 22, 2019 at 03:46:19PM -0700, Matt Cover wrote:
> Unless of course we can simply state via
> documentation that any negative return
> for which a define doesn't exist is
> undefined behavior. In which case,
> there is no old vs new behavior and
> no need for an ioctl. Simply the
> under
On Mon, Sep 23, 2019 at 05:47:24PM +0200, David Hildenbrand wrote:
> On 23.09.19 17:45, David Hildenbrand wrote:
> > On 23.09.19 17:37, Michael S. Tsirkin wrote:
> >> On Mon, Sep 23, 2019 at 08:28:00AM -0700, Alexander Duyck wrote:
> >>> On Mon, Sep 23, 2019
On Mon, Sep 23, 2019 at 05:45:29PM +0200, David Hildenbrand wrote:
> On 23.09.19 17:37, Michael S. Tsirkin wrote:
> > On Mon, Sep 23, 2019 at 08:28:00AM -0700, Alexander Duyck wrote:
> >> On Mon, Sep 23, 2019 at 8:00 AM Michael S. Tsirkin wrote:
> >>>
> >&
On Mon, Sep 23, 2019 at 08:28:00AM -0700, Alexander Duyck wrote:
> On Mon, Sep 23, 2019 at 8:00 AM Michael S. Tsirkin wrote:
> >
> > On Mon, Sep 23, 2019 at 07:50:15AM -0700, Alexander Duyck wrote:
> > > > > +static inline void
> > > > > +page_reporti
On Mon, Sep 23, 2019 at 07:50:15AM -0700, Alexander Duyck wrote:
> > > +static inline void
> > > +page_reporting_reset_boundary(struct zone *zone, unsigned int order, int
> > > mt)
> > > +{
> > > + int index;
> > > +
> > > + if (order < PAGE_REPORTING_MIN_ORDER)
> > > + return;
On Wed, Sep 18, 2019 at 10:52:49AM -0700, Alexander Duyck wrote:
> From: Alexander Duyck
>
> In order to pave the way for free page reporting in virtualized
> environments we will need a way to get pages out of the free lists and
> identify those pages after they have been returned. To accomplish
On Mon, Sep 23, 2019 at 03:46:41PM +0800, wangxu wrote:
> From: Wang Xu
>
> Caller of vhost_exceeds_weight(..., total_len) in drivers/vhost/net.c
> usually pass size_t total_len, which may be affected by rx/tx package.
>
> Signed-off-by: Wang Xu
Puts a bit more pressure on the register file .
On Sun, Sep 22, 2019 at 10:43:19AM -0700, Matt Cover wrote:
> On Sun, Sep 22, 2019 at 5:37 AM Michael S. Tsirkin wrote:
> >
> > On Fri, Sep 20, 2019 at 11:58:43AM -0700, Matthew Cover wrote:
> > > Treat a negative return from a TUNSETSTEERINGEBPF bpf prog as a sig
On Fri, Sep 20, 2019 at 11:58:43AM -0700, Matthew Cover wrote:
> Treat a negative return from a TUNSETSTEERINGEBPF bpf prog as a signal
> to fallback to tun_automq_select_queue() for tx queue selection.
>
> Compilation of this exact patch was tested.
>
> For functional testing 3 additional printk
On Wed, Sep 18, 2019 at 10:53:05AM -0700, Alexander Duyck wrote:
> From: Alexander Duyck
>
> Currently the page poisoning setting wasn't being enabled unless free page
> hinting was enabled. However we will need the page poisoning tracking logic
> as well for unused page reporting. As such pull i
On Wed, Sep 18, 2019 at 01:51:21PM +0800, Jason Wang wrote:
>
> On 2019/9/17 下午6:58, Tiwei Bie wrote:
> > On Tue, Sep 17, 2019 at 11:32:03AM +0800, Jason Wang wrote:
> > > On 2019/9/17 上午9:02, Tiwei Bie wrote:
> > > > This RFC is to demonstrate below ideas,
> > > >
> > > > a) Build vhost-mdev on
ek Goyal
> Signed-off-by: Miklos Szeredi
Overall this looks ok to me. Handling full vq by a timer is really gross
but it's correct - just terribly inefficient. I think you should add a
MAINTAINERS entry though, we want
virtualizat...@lists.linux-foundation.org Cc'd on pa
14
15:21:51 -0400)
virtio: a last minute revert
32 bit build got broken by the latest defence in depth patch.
Revert and we'll try again in the next cycle.
Signed-off
_1879' declared with attribute error:
> BUILD_BUG_ON failed: sizeof(_s) > sizeof(long)
>
> Fixes: a89db445fbd7 ("vhost: block speculation of translated descriptors")
> Cc: Michael S. Tsirkin
> Cc: Jason Wang
> Signed-off-by: Guenter Roeck
> ---
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