On 2019/10/24 上午5:42, Alex Williamson wrote:
On Wed, 23 Oct 2019 21:07:47 +0800
Jason Wang wrote:
Mdev bus only supports vfio driver right now, so it doesn't implement
match method. But in the future, we may add drivers other than vfio,
the first driver could be virtio-mdev. This means we
On 2019/10/24 上午5:42, Alex Williamson wrote:
On Wed, 23 Oct 2019 21:07:48 +0800
Jason Wang wrote:
Add support to parse mdev class id table.
Reviewed-by: Parav Pandit
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/vfio_mdev.c | 2 ++
scripts/mod/devicetable-offsets.c | 3 +++
On 2019/10/24 上午11:26, Liu, Yong wrote:
-Original Message-
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Tuesday, October 22, 2019 9:06 PM
To: Liu, Yong ; m...@redhat.com; Bie, Tiwei
Cc: virtualization@lists.linux-foundation.org
Subject: Re: [PATCH] virtio_ring: fix packed ring
On 2019/10/24 上午5:57, Alex Williamson wrote:
On Wed, 23 Oct 2019 21:07:50 +0800
Jason Wang wrote:
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_core.c| 20
We want to copy from iov to buf, so the direction was wrong.
Note: no real user for the helper, but it will be used by future
features.
Signed-off-by: Jason Wang
---
drivers/vhost/vringh.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vringh.c
On Wed, Oct 23, 2019 at 06:29:21PM +0800, Jason Wang wrote:
> On 2019/10/23 下午6:11, Tiwei Bie wrote:
> > On Wed, Oct 23, 2019 at 03:25:00PM +0800, Jason Wang wrote:
> > > On 2019/10/23 下午3:07, Tiwei Bie wrote:
> > > > On Wed, Oct 23, 2019 at 01:46:23PM +0800, Jason Wang wrote:
> > > > > On
All transports call __vsock_create() with the same parameters,
most of them depending on the parent socket. In order to simplify
the VSOCK core APIs exposed to the transports, this patch adds
the vsock_create_connected() callable from transports to create
a new socket when a connection request is
Remote peer is always the host, so we set VMADDR_CID_HOST as
remote CID instead of VMADDR_CID_ANY.
Reviewed-by: Dexuan Cui
Reviewed-by: Stefan Hajnoczi
Signed-off-by: Stefano Garzarella
---
net/vmw_vsock/hyperv_transport.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
To allow other transports to be loaded with vmci_transport,
we register the vmci_transport as G2H or H2G only when a VMCI guest
or host is active.
To do that, this patch adds a callback registered in the vmci driver
that will be called when a new host or guest become active.
This callback will
Since now the 'struct vsock_sock' object contains a pointer to
the transport, this patch adds a parameter to the
vsock_core_get_transport() to return the right transport
assigned to the socket.
This patch modifies also the virtio_transport_get_ops(), that
uses the vsock_core_get_transport(),
On 2019/10/23 下午5:24, Zhu, Lingshan wrote:
set_config/get_config is missing. It looks to me they are not
hard, just implementing the access to dev_cfg. It's key to make
kernel virtio driver to work.
And in the new version of virito-mdev, features like _F_LOG_ALL
should be advertised
This patch adds the support of multiple transports in the
VSOCK core.
With the multi-transports support, we can use vsock with nested VMs
(using also different hypervisors) loading both guest->host and
host->guest transports at the same time.
Major changes:
- vsock core module can be loaded
When we are looking for a socket bound to a specific address,
we also have to take into account the CID.
This patch is useful with multi-transports support because it
allows the binding of the same port with different CID, and
it prevents a connection to a wrong socket bound to the same
port, but
On Wed, Oct 23, 2019 at 03:25:00PM +0800, Jason Wang wrote:
> On 2019/10/23 下午3:07, Tiwei Bie wrote:
> > On Wed, Oct 23, 2019 at 01:46:23PM +0800, Jason Wang wrote:
> > > On 2019/10/23 上午11:02, Tiwei Bie wrote:
> > > > On Tue, Oct 22, 2019 at 09:30:16PM +0800, Jason Wang wrote:
> > > > > On
This patch adds 'module' member in the 'struct vsock_transport'
in order to get/put the transport module. This prevents the
module unloading while sockets are assigned to it.
We increase the module refcnt when a socket is assigned to a
transport, and we decrease the module refcnt when the socket
On 23.10.19 11:43, Michal Hocko wrote:
On Tue 22-10-19 16:02:09, David Hildenbrand wrote:
[...]
MEM_CANCEL_OFFLINE could gain the reference back to balance the
MEM_GOING_OFFLINE step.
The pages are already unisolated and could be used by the buddy. But again,
I think you have an idea that
Currently, except for the create and remove, the rest of
mdev_parent_ops is designed for vfio-mdev driver only and may not help
for kernel mdev driver. With the help of class id, this patch
introduces device specific callbacks inside mdev_device
structure. This allows different set of callback to
This sample driver creates mdev device that simulate virtio net device
over virtio mdev transport. The device is implemented through vringh
and workqueue. A device specific dma ops is to make sure HVA is used
directly as the IOVA. This should be sufficient for kernel virtio
driver to work.
Only
This patch introduces a new mdev transport for virtio. This is used to
use kernel virtio driver to drive the mediated device that is capable
of populating virtqueue directly.
A new virtio-mdev driver will be registered to the mdev bus, when a
new virtio-mdev device is probed, it will register the
On Wed, Oct 23, 2019 at 3:18 PM Jani Nikula wrote:
>
> On Tue, 22 Oct 2019, Daniel Vetter wrote:
> > On Fri, Oct 18, 2019 at 01:38:32PM +0200, Gerd Hoffmann wrote:
> >> Signed-off-by: Gerd Hoffmann
> >> ---
> >> drivers/gpu/drm/virtio/virtgpu_kms.c | 9 -
> >> 1 file changed, 4
Add support to parse mdev class id table.
Reviewed-by: Parav Pandit
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/vfio_mdev.c | 2 ++
scripts/mod/devicetable-offsets.c | 3 +++
scripts/mod/file2alias.c | 10 ++
3 files changed, 15 insertions(+)
diff --git
On Tue, 22 Oct 2019, Daniel Vetter wrote:
> On Fri, Oct 18, 2019 at 01:38:32PM +0200, Gerd Hoffmann wrote:
>> Signed-off-by: Gerd Hoffmann
>> ---
>> drivers/gpu/drm/virtio/virtgpu_kms.c | 9 -
>> 1 file changed, 4 insertions(+), 5 deletions(-)
>>
>> diff --git
This series adds the multi-transports support to vsock, following
this proposal: https://www.spinics.net/lists/netdev/msg575792.html
With the multi-transports support, we can use VSOCK with nested VMs
(using also different hypervisors) loading both guest->host and
host->guest transports at the
Passing the wrong type feels icky, everywhere else we use the pipe as
the first parameter. Spotted while discussing patches with Thomas
Zimmermann.
v2: Make xen compile correctly
Acked-By: Thomas Zimmermann (v1)
Cc: Thomas Zimmermann
Cc: Noralf Trønnes
Cc: Gerd Hoffmann
Cc: Eric Anholt
Cc:
On 2019/10/23 下午6:11, Tiwei Bie wrote:
On Wed, Oct 23, 2019 at 03:25:00PM +0800, Jason Wang wrote:
On 2019/10/23 下午3:07, Tiwei Bie wrote:
On Wed, Oct 23, 2019 at 01:46:23PM +0800, Jason Wang wrote:
On 2019/10/23 上午11:02, Tiwei Bie wrote:
On Tue, Oct 22, 2019 at 09:30:16PM +0800, Jason Wang
On 2019/10/23 下午6:13, Simon Horman wrote:
On Tue, Oct 22, 2019 at 09:32:36AM +0800, Jason Wang wrote:
On 2019/10/22 上午12:31, Simon Horman wrote:
On Mon, Oct 21, 2019 at 05:55:33PM +0800, Zhu, Lingshan wrote:
On 10/16/2019 5:53 PM, Simon Horman wrote:
Hi Zhu,
thanks for your patch.
On Wed,
Mdev bus only supports vfio driver right now, so it doesn't implement
match method. But in the future, we may add drivers other than vfio,
the first driver could be virtio-mdev. This means we need to add
device class id support in bus match method to pair the mdev device
and mdev driver correctly.
We are going to add 'struct vsock_sock *' parameter to
virtio_transport_get_ops().
In some cases, like in the virtio_transport_reset_no_sock(),
we don't have any socket assigned to the packet received,
so we can't use the virtio_transport_get_ops().
In order to allow
virtio_transport and vmci_transport handle the buffer_size
sockopts in a very similar way.
In order to support multiple transports, this patch moves this
handling in the core to allow the user to change the options
also if the socket is not yet assigned to any transport.
This patch also adds the
vsock_insert_unbound() was called only when 'sock' parameter of
__vsock_create() was not null. This only happened when
__vsock_create() was called by vsock_create().
In order to simplify the multi-transports support, this patch
moves vsock_insert_unbound() at the end of vsock_create().
vm_sockets_get_local_cid() is only used in virtio_transport_common.c.
We can replace it calling the virtio_transport_get_ops() and
using the get_local_cid() callback registered by the transport.
Reviewed-by: Stefan Hajnoczi
Signed-off-by: Stefano Garzarella
---
include/linux/vm_sockets.h
This header file now only includes the "uapi/linux/vm_sockets.h".
We can include directly it when needed.
Reviewed-by: Stefan Hajnoczi
Signed-off-by: Stefano Garzarella
---
include/linux/vm_sockets.h| 13 -
include/net/af_vsock.h| 2 +-
As a preparation to support multiple transports, this patch adds
the 'transport' member at the 'struct vsock_sock'.
This new field is initialized during the creation in the
__vsock_create() function.
This patch also renames the global 'transport' pointer to
'transport_single', since for now we're
The VSOCK_DEFAULT_CONNECT_TIMEOUT definition was introduced with
commit d021c344051af ("VSOCK: Introduce VM Sockets"), but it is
never used in the net/vmw_vsock/vmci_transport.c.
VSOCK_DEFAULT_CONNECT_TIMEOUT is used and defined in
net/vmw_vsock/af_vsock.c
Cc: Jorgen Hansen
Reviewed-by: Stefan
Hi all:
There are hardwares that can do virtio datapath offloading while
having its own control path. This path tries to implement a mdev based
unified API to support using kernel virtio driver to drive those
devices. This is done by introducing a new mdev transport for virtio
(virtio_mdev) and
On Wed, Oct 23, 2019 at 12:13 PM Daniel Vetter wrote:
> Passing the wrong type feels icky, everywhere else we use the pipe as
> the first parameter. Spotted while discussing patches with Thomas
> Zimmermann.
>
> v2: Make xen compile correctly
>
> Acked-By: Thomas Zimmermann (v1)
> Cc: Thomas
On Wed, Oct 23, 2019 at 3:35 PM Andrey Konovalov wrote:
>
> On Wed, Oct 23, 2019 at 10:36 AM Dmitry Vyukov wrote:
> >
> > On Tue, Oct 22, 2019 at 6:46 PM Andrey Konovalov
> > wrote:
> > >
> > > This patch adds kcov_remote_start()/kcov_remote_stop() annotations to the
> > > vhost_worker()
On Wed, Oct 23, 2019 at 10:02:49AM +0800, zhengbin wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> fs/fuse/virtio_fs.c: In function virtio_fs_wake_pending_and_unlock:
> fs/fuse/virtio_fs.c:983:20: warning: variable fc set but not used
> [-Wunused-but-set-variable]
>
> It is not used
On Wed, Oct 23, 2019 at 11:59 AM Stefano Garzarella wrote:
>
> This patch adds the support of multiple transports in the
> VSOCK core.
>
> With the multi-transports support, we can use vsock with nested VMs
> (using also different hypervisors) loading both guest->host and
> host->guest transports
On Wed, Oct 23, 2019 at 02:21:30PM +0800, YueHaibing wrote:
> fs/fuse/virtio_fs.c:983:20: warning:
> variable fc set but not used [-Wunused-but-set-variable]
>
> It is not used since commit 7ee1e2e631db ("virtiofs:
> No need to check fpq->connected state")
>
> Signed-off-by: YueHaibing
> ---
>
Hi Andrey,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[cannot apply to v5.4-rc4 next-20191023]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify
Hi Andrey,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[cannot apply to v5.4-rc4 next-20191023]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify
On Wed, 23 Oct 2019 21:07:48 +0800
Jason Wang wrote:
> Add support to parse mdev class id table.
>
> Reviewed-by: Parav Pandit
> Signed-off-by: Jason Wang
> ---
> drivers/vfio/mdev/vfio_mdev.c | 2 ++
> scripts/mod/devicetable-offsets.c | 3 +++
> scripts/mod/file2alias.c | 10
On Wed, 23 Oct 2019 21:07:47 +0800
Jason Wang wrote:
> Mdev bus only supports vfio driver right now, so it doesn't implement
> match method. But in the future, we may add drivers other than vfio,
> the first driver could be virtio-mdev. This means we need to add
> device class id support in bus
On Wed, 23 Oct 2019 17:24:29 +0200 Andrey Konovalov
wrote:
> This patch adds background thread coverage collection ability to kcov.
>
> With KCOV_ENABLE coverage is collected only for syscalls that are issued
> from the current process. With KCOV_REMOTE_ENABLE it's possible to collect
>
On Wed, 23 Oct 2019 21:07:50 +0800
Jason Wang wrote:
> This patch implements basic support for mdev driver that supports
> virtio transport for kernel virtio driver.
>
> Signed-off-by: Jason Wang
> ---
> drivers/vfio/mdev/mdev_core.c| 20
> drivers/vfio/mdev/mdev_private.h | 2 +
>
On Wed, 23 Oct 2019 17:24:28 +0200 Andrey Konovalov
wrote:
> This patchset extends kcov to allow collecting coverage from the USB
> subsystem and vhost workers. See the first patch description for details
> about the kcov extension. The other two patches apply this kcov extension
> to USB and
On Tue, Oct 22, 2019 at 6:46 PM Andrey Konovalov wrote:
>
> This patch adds kcov_remote_start()/kcov_remote_stop() annotations to the
> vhost_worker() function, which is responsible for processing vhost works.
> Since vhost_worker() threads are spawned per vhost device instance
> the common kcov
On Tue, Oct 22, 2019 at 6:46 PM Andrey Konovalov wrote:
>
> This patchset extends kcov to allow collecting coverage from the USB
> subsystem and vhost workers. See the first patch description for details
> about the kcov extension. The other two patches apply this kcov extension
> to USB and
On 2019/10/23 下午2:19, Zhu, Lingshan wrote:
On 10/22/2019 9:05 PM, Jason Wang wrote:
On 2019/10/22 下午2:53, Zhu Lingshan wrote:
On 10/21/2019 6:19 PM, Jason Wang wrote:
On 2019/10/21 下午5:53, Zhu, Lingshan wrote:
On 10/16/2019 6:19 PM, Jason Wang wrote:
On 2019/10/16 上午9:30, Zhu
Hi
Am 22.10.19 um 21:03 schrieb Daniel Vetter:
> On Tue, Oct 22, 2019 at 7:16 PM Thomas Zimmermann wrote:
>>
>> Hi,
>>
>> there are two types of callbacks in struct
>> drm_simple_display_pipe_funcs: functions that are genuine to simple KMS,
>> and functions that are merely forwarded from another
No functional change.
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/virtio/virtgpu_plane.c | 36 +++---
1 file changed, 21 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c
b/drivers/gpu/drm/virtio/virtgpu_plane.c
index
Be consistent with the rest of the code base.
No functional change.
v2:
- fix sparse warnings for virtio_gpu_cmd_transfer_to_host_2d call.
- move convert_to_hw_box helper function.
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/virtio/virtgpu_drv.h | 5 +++--
Return early for the no framebuffer (or disabled output) case.
Results in a simpler code flow for the remaining cases.
No functional change.
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/virtio/virtgpu_plane.c | 62 ++
1 file changed, 33 insertions(+), 29 deletions(-)
fs/fuse/virtio_fs.c:983:20: warning:
variable fc set but not used [-Wunused-but-set-variable]
It is not used since commit 7ee1e2e631db ("virtiofs:
No need to check fpq->connected state")
Signed-off-by: YueHaibing
---
fs/fuse/virtio_fs.c | 2 --
1 file changed, 2 deletions(-)
diff --git
On Wed, Oct 23, 2019 at 01:46:23PM +0800, Jason Wang wrote:
> On 2019/10/23 上午11:02, Tiwei Bie wrote:
> > On Tue, Oct 22, 2019 at 09:30:16PM +0800, Jason Wang wrote:
> > > On 2019/10/22 下午5:52, Tiwei Bie wrote:
> > > > This patch introduces a mdev based hardware vhost backend.
> > > > This backend
On 2019/10/23 下午3:07, Tiwei Bie wrote:
On Wed, Oct 23, 2019 at 01:46:23PM +0800, Jason Wang wrote:
On 2019/10/23 上午11:02, Tiwei Bie wrote:
On Tue, Oct 22, 2019 at 09:30:16PM +0800, Jason Wang wrote:
On 2019/10/22 下午5:52, Tiwei Bie wrote:
This patch introduces a mdev based hardware vhost
On Wed, Oct 23, 2019 at 08:47:57AM +0200, Thomas Zimmermann wrote:
> Hi
>
> Am 22.10.19 um 21:03 schrieb Daniel Vetter:
> > On Tue, Oct 22, 2019 at 7:16 PM Thomas Zimmermann
> > wrote:
> >>
> >> Hi,
> >>
> >> there are two types of callbacks in struct
> >> drm_simple_display_pipe_funcs:
On Tue 22-10-19 16:02:09, David Hildenbrand wrote:
[...]
> >>> MEM_CANCEL_OFFLINE could gain the reference back to balance the
> >>> MEM_GOING_OFFLINE step.
> >>
> >> The pages are already unisolated and could be used by the buddy. But again,
> >> I think you have an idea that tries to avoid
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