On Thu, Feb 13, 2020 at 04:23:24PM +, Anton Ivanov wrote:
>
> On 13/02/2020 15:53, Michael S. Tsirkin wrote:
> > On Thu, Feb 13, 2020 at 07:44:06AM -0800, Eric Dumazet wrote:
> > >
> > > On 2/13/20 2:00 AM, Michael S. Tsirkin wrote:
> > > > On Wed, Feb 12, 2020 at 05:38:09PM +, Anton
This patch implements a software vDPA networking device. The datapath
is implemented through vringh and workqueue. The device has an on-chip
IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA
simulator driver provides dma_ops. For vhost driers, set_map() methods
of vdpa_config_ops
vDPA device is a device that uses a datapath which complies with the
virtio specifications with vendor specific control path. vDPA devices
can be both physically located on the hardware or emulated by
software. vDPA hardware devices are usually implemented through PCIE
with the following types:
-
This patch introduces a vDPA transport for virtio. This is used to
use kernel virtio driver to drive the vDPA device that is capable
of populating virtqueue directly.
A new virtio-vdpa driver will be registered to the vDPA bus, when a
new virtio-vdpa device is probed, it will register the device
This patch implements the third memory accessor for vringh besides
current kernel and userspace accessors. This idea is to allow vringh
to do the address translation through an IOTLB which is implemented
via vhost_map interval tree. Users should setup and IOVA to PA mapping
in this IOTLB.
This
This patch factors out IOTLB into a dedicated module in order to be
reused by other modules like vringh. User may choose to enable the
automatic retiring by specifying VHOST_IOTLB_FLAG_RETIRE flag to fit
for the case of vhost device IOTLB implementation.
Signed-off-by: Jason Wang
---
Hi all:
This is an update version of vDPA support in kernel.
vDPA device is a device that uses a datapath which complies with the
virtio specifications with vendor specific control path. vDPA devices
can be both physically located on the hardware or emulated by
software. vDPA hardware devices
On 2020/2/20 下午12:09, Randy Dunlap wrote:
On 2/19/20 7:56 PM, Jason Wang wrote:
diff --git a/drivers/virtio/vdpa/Kconfig b/drivers/virtio/vdpa/Kconfig
index 7a99170e6c30..e3656b722654 100644
--- a/drivers/virtio/vdpa/Kconfig
+++ b/drivers/virtio/vdpa/Kconfig
@@ -7,3 +7,21 @@ config VDPA
On 2020/2/20 下午12:07, Randy Dunlap wrote:
On 2/19/20 7:56 PM, Jason Wang wrote:
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 9c4fdb64d9ac..0df3676b0f4f 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY
If
On 2020/2/20 下午12:06, Randy Dunlap wrote:
On 2/19/20 7:56 PM, Jason Wang wrote:
diff --git a/drivers/virtio/vdpa/Kconfig b/drivers/virtio/vdpa/Kconfig
new file mode 100644
index ..7a99170e6c30
--- /dev/null
+++ b/drivers/virtio/vdpa/Kconfig
@@ -0,0 +1,9 @@
+#
On 2020/2/20 下午12:04, Randy Dunlap wrote:
On 2/19/20 7:56 PM, Jason Wang wrote:
This patch factors out IOTLB into a dedicated module in order to be
reused by other modules like vringh. User may choose to enable the
automatic retiring by specifying VHOST_IOTLB_FLAG_RETIRE flag to fit
for the
On 2/19/20 7:56 PM, Jason Wang wrote:
> diff --git a/drivers/virtio/vdpa/Kconfig b/drivers/virtio/vdpa/Kconfig
> index 7a99170e6c30..e3656b722654 100644
> --- a/drivers/virtio/vdpa/Kconfig
> +++ b/drivers/virtio/vdpa/Kconfig
> @@ -7,3 +7,21 @@ config VDPA
>datapath which complies with
On 2/19/20 7:56 PM, Jason Wang wrote:
> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
> index 9c4fdb64d9ac..0df3676b0f4f 100644
> --- a/drivers/virtio/Kconfig
> +++ b/drivers/virtio/Kconfig
> @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY
>
> If unsure, say Y.
>
> +config
On 2/19/20 7:56 PM, Jason Wang wrote:
> diff --git a/drivers/virtio/vdpa/Kconfig b/drivers/virtio/vdpa/Kconfig
> new file mode 100644
> index ..7a99170e6c30
> --- /dev/null
> +++ b/drivers/virtio/vdpa/Kconfig
> @@ -0,0 +1,9 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +config VDPA
>
On 2/19/20 7:56 PM, Jason Wang wrote:
> This patch factors out IOTLB into a dedicated module in order to be
> reused by other modules like vringh. User may choose to enable the
> automatic retiring by specifying VHOST_IOTLB_FLAG_RETIRE flag to fit
> for the case of vhost device IOTLB
This patch implements a software vDPA networking device. The datapath
is implemented through vringh and workqueue. The device has an on-chip
IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA
simulator driver provides dma_ops. For vhost driers, set_map() methods
of vdpa_config_ops
vDPA device is a device that uses a datapath which complies with the
virtio specifications with vendor specific control path. vDPA devices
can be both physically located on the hardware or emulated by
software. vDPA hardware devices are usually implemented through PCIE
with the following types:
-
This patch introduces a vDPA transport for virtio. This is used to
use kernel virtio driver to drive the vDPA device that is capable
of populating virtqueue directly.
A new virtio-vdpa driver will be registered to the vDPA bus, when a
new virtio-vdpa device is probed, it will register the device
This patch implements the third memory accessor for vringh besides
current kernel and userspace accessors. This idea is to allow vringh
to do the address translation through an IOTLB which is implemented
via vhost_map interval tree. Users should setup and IOVA to PA mapping
in this IOTLB.
This
Hi all:
This is an update version of vDPA support in kernel.
vDPA device is a device that uses a datapath which complies with the
virtio specifications with vendor specific control path. vDPA devices
can be both physically located on the hardware or emulated by
software. vDPA hardware devices
This patch factors out IOTLB into a dedicated module in order to be
reused by other modules like vringh. User may choose to enable the
automatic retiring by specifying VHOST_IOTLB_FLAG_RETIRE flag to fit
for the case of vhost device IOTLB implementation.
Signed-off-by: Jason Wang
---
On Wed, Feb 19, 2020 at 09:11:02AM -0400, Jason Gunthorpe wrote:
> On Wed, Feb 19, 2020 at 10:52:38AM +0800, Tiwei Bie wrote:
> > > > +static int __init vhost_vdpa_init(void)
> > > > +{
> > > > + int r;
> > > > +
> > > > + idr_init(_vdpa.idr);
> > > > + mutex_init(_vdpa.mutex);
>
0day reports:
drivers//virtio/virtio_balloon.c: In function 'virtballoon_probe':
drivers//virtio/virtio_balloon.c:960:1: error:
label 'out_del_vqs' defined but not used [-Werror=unused-label]
This is seen with CONFIG_BALLOON_COMPACTION=n.
Reported-by: kbuild test robot
Fixes:
On Thu, Feb 13, 2020 at 01:37:26PM +0100, Halil Pasic wrote:
> Two patches are handling new edge cases introduced by doing DMA mappings
> (which can fail) in virtio core.
>
> I stumbled upon this while stress testing I/O for Protected Virtual
> Machines. I deliberately chose a tiny swiotlb size
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the
address so they can be converted to a "const" version for const-safety
and consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among
Hi,
Changes since v1
https://lore.kernel.org/lkml/1578415992-24054-1-git-send-email-k...@kernel.org/
1. Constify also ioreadX_rep() and mmio_insX(),
2. Squash lib+alpha+powerpc+parisc+sh into one patch for bisectability,
3. Add acks and reviews,
4. Re-order patches so all
The ioreadX() and ioreadX_rep() helpers have inconsistent interface. On
some architectures void *__iomem address argument is a pointer to const,
on some not.
Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
On Wed, 19 Feb 2020 09:46:56 +0800
Ming Lei wrote:
> On Tue, Feb 18, 2020 at 8:35 PM Halil Pasic wrote:
> >
> > On Tue, 18 Feb 2020 10:21:18 +0800
> > Ming Lei wrote:
> >
> > > On Thu, Feb 13, 2020 at 8:38 PM Halil Pasic wrote:
> > > >
> > > > Since nobody else is going to restart our
On Wed, Feb 19, 2020 at 10:52:38AM +0800, Tiwei Bie wrote:
> > > +static int __init vhost_vdpa_init(void)
> > > +{
> > > + int r;
> > > +
> > > + idr_init(_vdpa.idr);
> > > + mutex_init(_vdpa.mutex);
> > > + init_waitqueue_head(_vdpa.release_q);
> > > +
> > > + /*
On Wed, Feb 19, 2020 at 01:35:25PM +0800, Jason Wang wrote:
> > But it is
> > open coded and duplicated because .. vdpa?
>
>
> I'm not sure I get here, vhost module is reused for vhost-vdpa and all
> current vhost device (e.g net) uses their own char device.
I mean there shouldn't be two fops
On Wed, Feb 19, 2020 at 12:41:33PM +0100, Jean-Philippe Brucker wrote:
> No, I meant Will's changes in 5.6 to make the SMMU drivers modular. This
> patch doesn't depend on the x86 enablement patch-set, but there is a small
> conflict in Kconfig since they both modify it (locally I have this patch
Hi Joerg,
On Wed, Feb 19, 2020 at 12:16:04PM +0100, Joerg Roedel wrote:
> On Fri, Feb 14, 2020 at 05:38:27PM +0100, Jean-Philippe Brucker wrote:
> > From: Jean-Philippe Brucker
> >
> > Now that the infrastructure changes are in place, enable virtio-iommu to
> > be built as a module. Remove the
On Fri, Feb 14, 2020 at 05:38:27PM +0100, Jean-Philippe Brucker wrote:
> From: Jean-Philippe Brucker
>
> Now that the infrastructure changes are in place, enable virtio-iommu to
> be built as a module. Remove the redundant pci_request_acs() call, since
> it's not exported but is already invoked
On 19.02.20 11:42, Joerg Roedel wrote:
Hi Jürgen,
On Wed, Feb 12, 2020 at 05:28:21PM +0100, Jürgen Groß wrote:
Xen-PV is clearing BSS as the very first action.
In the kernel image? Or in the ELF loader before jumping to the kernel
image?
In the kernel image.
See arch/x86/xen/xen-head.S -
Hi Jürgen,
On Wed, Feb 12, 2020 at 05:28:21PM +0100, Jürgen Groß wrote:
> Xen-PV is clearing BSS as the very first action.
In the kernel image? Or in the ELF loader before jumping to the kernel
image?
Regards,
Joerg
___
Virtualization mailing
Instead rely on the automatic clean, for which we just need to check
that drm_mode_config_init succeeded. To avoid an inversion in the
cleanup we also have to move the dev_private allocation over to
drmm_kzalloc.
Signed-off-by: Daniel Vetter
Cc: Gerd Hoffmann
Cc:
With the drm_device lifetime fun cleaned up there's nothing in the way
anymore to use devm_ for everything hw releated. Do it, and in the
process, throw out the entire onion unwinding.
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: Daniel Vetter
Cc: "Noralf Trønnes"
Cc:
We can even delete the drm_driver.release hook now!
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: Daniel Vetter
Cc: "Noralf Trønnes"
Cc: Sam Ravnborg
Cc: Thomas Zimmermann
Cc: virtualization@lists.linux-foundation.org
---
drivers/gpu/drm/cirrus/cirrus.c | 21
With this we can drop the final kfree from the release function.
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: virtualization@lists.linux-foundation.org
Cc: spice-de...@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 2 --
drivers/gpu/drm/qxl/qxl_kms.c | 2 ++
2
With this we can drop the final kfree from the release function.
I also noticed that cirrus forgot to call drm_dev_fini().
v2: Don't call kfree(cirrus) after we've handed overship of that to
drm_device and the drmm_ stuff.
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc:
On 19.02.20 10:22, Thomas Gleixner wrote:
Jürgen Groß writes:
On 18.02.20 22:03, Thomas Gleixner wrote:
BTW, why isn't stuff like this not catched during next or at least
before the final release? Is nothing running CI on upstream with all
that XEN muck active?
This problem showed up by not
Jürgen Groß writes:
> On 18.02.20 22:03, Thomas Gleixner wrote:
>> BTW, why isn't stuff like this not catched during next or at least
>> before the final release? Is nothing running CI on upstream with all
>> that XEN muck active?
>
> This problem showed up by not being able to start the X server
On 19.02.2020 06:35, Jürgen Groß wrote:
> On 18.02.20 22:03, Thomas Gleixner wrote:
>> Juergen Gross writes:
>>> Commit 111e7b15cf10f6 ("x86/ioperm: Extend IOPL config to control
>>> ioperm() as well") reworked the iopl syscall to use I/O bitmaps.
>>>
>>> Unfortunately this broke Xen PV domains
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