On Mon, Mar 23, 2020 at 06:04:37PM +, Bharat Bhushan wrote:
> > > -static int viommu_domain_finalise(struct viommu_dev *viommu,
> > > +static int viommu_domain_finalise(struct viommu_endpoint *vdev,
> > > struct iommu_domain *domain)
> > > {
> > > int ret;
> > >
From: Zhu Lingshan
This commit introduced two layers to drive IFC VF:
(1) ifcvf_base layer, which handles IFC VF NIC hardware operations and
configurations.
(2) ifcvf_main layer, which complies to VDPA bus framework,
implemented device operations for VDPA bus, handles device probe,
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 i
From: Tiwei Bie
This patch introduces a vDPA-based vhost backend. This backend is
built on top of the same interface defined in virtio-vDPA and provides
a generic vhost interface for userspace to accelerate the virtio
devices in guest.
This backend is implemented as a vDPA device driver on top o
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 w
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 all
This patch allow device to register its own message handler during
vhost_dev_init(). vDPA device will use it to implement its own DMA
mapping logic.
Signed-off-by: Jason Wang
---
drivers/vhost/net.c | 3 ++-
drivers/vhost/scsi.c | 2 +-
drivers/vhost/vhost.c | 12 ++--
drivers/vhost
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
---
MAINTAINERS
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 are
To be aligned with other bool variables.
Signed-off-by: Alexey Makhalov
Reviewed-by: Thomas Gleixner
---
arch/x86/kernel/cpu/vmware.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index e885f73bebd4..9b6fafa69
Hi,
This is a second version of the series. Changes are mentioned bellow.
Big thanks for the reviewers.
v2 changes:
- renamed steal_time to vmw_steal_time (3rd patch) to avoid
conflict with KVM one to fix compilation issue found by
Borislav Petkov and kbuild test robot
- added: "Revi
Set paravirt_steal_rq_enabled if steal clock present.
paravirt_steal_rq_enabled is used in sched/core.c to
adjust task progress by offsetting stolen time.
Use 'no-steal-acc' off switch (share same name with KVM)
to disable steal time accounting.
Signed-off-by: Alexey Makhalov
Reviewed-by: Thomas
Move cyc2ns setup logic to separate function.
This separation will allow to use cyc2ns mult/shift pair
not only for the sched_clock but also for other clocks
such as steal_clock.
Signed-off-by: Alexey Makhalov
Reviewed-by: Thomas Hellstrom
Reviewed-by: Thomas Gleixner
---
arch/x86/kernel/cpu/v
Steal time is the amount of CPU time needed by a guest
virtual machine that is not provided by the host. Steal
time occurs when the host allocates this CPU time
elsewhere: for example, to another guest.
Steal time can be enabled by adding VM configuration option
stealclock.enable = "TRUE". It is s
vmware_select_hypercall() is used only by the __init
functions, and should be annotated with __init as well.
Signed-off-by: Alexey Makhalov
Reviewed-by: Thomas Hellstrom
Reviewed-by: Thomas Gleixner
---
arch/x86/kernel/cpu/vmware.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --
We can even delete the drm_driver.release hook now!
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
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.
Acked-by: Gerd Hoffmann
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: Daniel Vetter
Cc:
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.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm
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.
Acked-by: Gerd Hoffmann
Acked-by: Sam Ravnborg
Signed-off-by: Daniel Ve
With this we can drop the final kfree from the release function.
Acked-by: Gerd Hoffmann
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
I guess we can do that ontop.
---
From: Borislav Petkov
Date: Mon, 23 Mar 2020 14:20:08 +0100
... to make it more readable.
No functional changes.
Signed-off-by: Borislav Petkov
---
arch/x86/include/asm/svm.h | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git
Hi Bharat,
Please add the IOMMU list on your next posting
On Mon, Mar 23, 2020 at 02:11:08PM +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
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