On Tue, Aug 24, 2021 at 10:27:23AM -0700, John Hubbard wrote:
> On 8/24/21 2:32 AM, Christian König wrote:
> > Am 24.08.21 um 11:06 schrieb Gal Pressman:
> > > On 23/08/2021 13:43, Christian König wrote:
> > > > Am 21.08.21 um 11:16 schrieb Gal Pressman:
> &
On Mon, Aug 23, 2021 at 05:50:27PM +1000, Stephen Rothwell wrote:
> From: Stephen Rothwell
> Date: Mon, 23 Aug 2021 17:46:27 +1000
> Subject: [PATCH] drm/i915/ttm: fix up for "lib/scatterlist: Provide a
> dedicated function to support tableappend"
>
> Signed-off-by: Stephen Rothwell
>
On Mon, Aug 23, 2021 at 04:45:45PM +0300, Maor Gottlieb wrote:
>
> On 8/23/2021 3:45 PM, Jason Gunthorpe wrote:
> > On Mon, Aug 23, 2021 at 02:09:37PM +0300, Maor Gottlieb wrote:
> > > On 8/20/2021 6:54 PM, Jason Gunthorpe wrote:
> > > > On Thu, Jul 29, 2021 at
On Mon, Aug 23, 2021 at 02:09:37PM +0300, Maor Gottlieb wrote:
>
> On 8/20/2021 6:54 PM, Jason Gunthorpe wrote:
> > On Thu, Jul 29, 2021 at 12:39:12PM +0300, Leon Romanovsky wrote:
> >
> > > +/**
> > > + * __sg_free_table - Free a previously mapped sg table
On Thu, Jul 29, 2021 at 12:39:10PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky
>
> Changelog:
> v3:
> * Rewrote to new API suggestion
> * Split for more patches
> v2: https://lore.kernel.org/lkml/cover.1626605893.git.leo...@nvidia.com
> * Changed implementation of first patch, based
On Fri, Aug 20, 2021 at 12:54:25PM -0300, Jason Gunthorpe wrote:
> On Thu, Jul 29, 2021 at 12:39:12PM +0300, Leon Romanovsky wrote:
>
> > +/**
> > + * __sg_free_table - Free a previously mapped sg table
> > + * @table: The sg table header to use
> > + * @max
On Thu, Jul 29, 2021 at 12:39:12PM +0300, Leon Romanovsky wrote:
> +/**
> + * __sg_free_table - Free a previously mapped sg table
> + * @table: The sg table header to use
> + * @max_ents:The maximum number of entries per single scatterlist
> + * @total_ents: The total number of
On Fri, Aug 20, 2021 at 03:58:33PM +0300, Gal Pressman wrote:
> Though it would've been nicer if we could agree on a solution that could work
> for more than 1-2 RDMA devices, using the existing tools the RDMA subsystem
> has.
I don't think it can really be done, revoke is necessary, and isn't
On Thu, Aug 19, 2021 at 11:14:37AM -0700, Kees Cook wrote:
> Which do you mean? When doing the conversions I tended to opt for
> struct_group() since it provides more robust "intentionality". Strictly
> speaking, the new memset helpers are doing field-spanning writes, but the
> "clear to the end"
On Fri, Aug 20, 2021 at 09:25:30AM +0200, Daniel Vetter wrote:
> On Fri, Aug 20, 2021 at 1:06 AM Jason Gunthorpe wrote:
> > On Wed, Aug 18, 2021 at 11:34:51AM +0200, Daniel Vetter wrote:
> > > On Wed, Aug 18, 2021 at 9:45 AM Gal Pressman wrote:
> > > >
> > &g
On Wed, Aug 18, 2021 at 11:34:51AM +0200, Daniel Vetter wrote:
> On Wed, Aug 18, 2021 at 9:45 AM Gal Pressman wrote:
> >
> > Hey all,
> >
> > Currently, the RDMA subsystem can only work with dynamic dmabuf
> > attachments, which requires the RDMA device to support on-demand-paging
> > (ODP) which
On Thu, Aug 19, 2021 at 09:19:08AM -0700, Kees Cook wrote:
> On Thu, Aug 19, 2021 at 09:27:16AM -0300, Jason Gunthorpe wrote:
> > On Tue, Aug 17, 2021 at 11:05:26PM -0700, Kees Cook wrote:
> > > In preparation for FORTIFY_SOURCE performing compile-time and run-time
> >
_mr that should be
> initialized to zero.
>
> Cc: Leon Romanovsky
> Cc: Doug Ledford
> Cc: Jason Gunthorpe
> Cc: linux-r...@vger.kernel.org
> Signed-off-by: Kees Cook
> ---
> drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 +++-
> 1 file changed, 3 insertions(+), 1 del
.
Since these really want the new open/close_device() semantics just change
the functions over.
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
drivers/s390/cio/vfio_ccw_ops.c | 8
drivers/s390/crypto/vfio_ap_ops.c | 8
2 files changed, 8 insertions(+), 8
these really want the new open/close_device() semantics just change
the function over.
Reviewed-by: Zhenyu Wang
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 8
1 file changed, 4 insertions(+), 4 deletions
ot;)
Fixes: 681c1615f891 ("vfio/mbochs: Convert to use vfio_register_group_dev()")
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4
samples/vfio-mdev/mdpy.c | 4
2 files changed, 8 deletions(-)
diff --git
Hellwig
Signed-off-by: Jason Gunthorpe
Signed-off-by: Yishai Hadas
---
drivers/vfio/platform/vfio_platform_common.c | 95 ---
drivers/vfio/platform/vfio_platform_private.h | 1 -
2 files changed, 40 insertions(+), 56 deletions(-)
diff --git a/drivers/vfio/platform
The core code no longer requires these ops to be defined, so delete these
empty functions and leave the op as NULL. mtty's functions only log a
pointless message, delete that entirely.
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason
-by: Jason Gunthorpe
---
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 156 --
drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c| 6 +-
drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 7 -
3 files changed, 29 insertions(+), 140 deletions(-)
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
b
Nothing uses this anymore, delete it.
Signed-off-by: Yishai Hadas
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_mdev.c | 22 --
drivers/vfio/vfio.c | 14 +-
include/linux/mdev.h | 7 ---
include
-by: Max Gurtovoy
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
Documentation/driver-api/vfio.rst| 4 ++-
drivers/vfio/fsl-mc/vfio_fsl_mc.c| 7 ++---
drivers/vfio/mdev/vfio_mdev.c| 13 +++---
drivers/vfio
Reviewed-off-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 213 +++-
1 file changed, 89 insertions(+), 124 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 0147f04c91b2fb..a4f44ea52fa
ed by what devices
pci_reset_bus() touches, which is either the entire bus or only the slot.
Rely on the core code to do everything reflck was doing and delete reflck
entirely.
Signed-off-by: Yishai Hadas
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/
into sets.
This implementation uses xarray instead of searching through the driver
core structures, which simplifies the somewhat tricky locking in this
area.
Following patches convert all the drivers.
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off
ot;)
Reported-by: Cornelia Huck
Co-developed-by: Alex Williamson
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 24 +++-
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-
ide vfio_pci_dev_set_try_reset().
This restructuring corrects a call to pci_dev_driver() without holding the
device_lock() and removes a hard wiring to _pci_driver.
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 182 +---
1 file changed, 86 insertions(+),
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index 7b2e12fe70827c..c313ab4d1f4e4e 100644
--- a/samples/vfio-mdev/mbochs.c
Return 0 from mdev open_device if there is no op
- Fix style for else {}
- Spelling fix for singleton
- Acquire cur_mem under lock
- Always use error unwind flow for vfio_pci_check_all_devices_bound()
v1: https://lore.kernel.org/r/0-v1-eaf3ccbba33c+1add0-vfio_reflck_...@nvidia.com
Jason Gunthorpe (12):
v
On Thu, Aug 05, 2021 at 11:33:11AM -0600, Alex Williamson wrote:
> > +static int vfio_pci_is_device_in_set(struct pci_dev *pdev, void *data)
> > +{
> > + struct vfio_device_set *dev_set = data;
> > + struct vfio_device *cur;
> > +
> > + lockdep_assert_held(_set->lock);
> > +
> > +
On Tue, Aug 03, 2021 at 10:52:25AM -0600, Alex Williamson wrote:
> On Tue, 3 Aug 2021 13:41:52 -0300
> Jason Gunthorpe wrote:
> > On Tue, Aug 03, 2021 at 10:34:06AM -0600, Alex Williamson wrote:
> > > I think the vfio_pci_find_reset_target() function needs to be re-worked
On Tue, Aug 03, 2021 at 10:34:06AM -0600, Alex Williamson wrote:
> On Wed, 28 Jul 2021 21:49:18 -0300
> Jason Gunthorpe wrote:
>
> > Keep track of all the vfio_devices that have been added to the device set
> > and use this list in vfio_pci_try_bus_reset() instead of trying
On Tue, Aug 03, 2021 at 05:43:15PM +0800, Zhenyu Wang wrote:
> Acked-by: Zhenyu Wang
>
> Thanks a lot for this effort!
Great, do we have a submission plan for this? how much does it clash
with my open_device/etc patch? ie does the whole thing have to go
through the vfio tree?
Thanks,
Jason
On Thu, Jul 29, 2021 at 12:38:12PM +0300, Dan Carpenter wrote:
> This should just be:
> atomic_add(type->mbytes, _avail_mbytes);
Arg, yes, thanks Dan - I thought I got all of these.
Jason
.
Since these really want the new open/close_device() semantics just change
the functions over.
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
drivers/s390/cio/vfio_ccw_ops.c | 8
drivers/s390/crypto/vfio_ap_ops.c | 8
2 files changed, 8 insertions(+), 8
ing corrects a call to pci_dev_driver() without holding the
device_lock() and removes a hard wiring to _pci_driver.
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 148 +++-
1 file changed, 62 insertions(+), 86 deletions(-)
diff --git a/drivers/vfio/
Nothing uses this anymore, delete it.
Signed-off-by: Yishai Hadas
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_mdev.c | 22 --
drivers/vfio/vfio.c | 14 +-
include/linux/mdev.h | 7 ---
include
ot;)
Fixes: 681c1615f891 ("vfio/mbochs: Convert to use vfio_register_group_dev()")
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4
samples/vfio-mdev/mdpy.c | 4
2 files changed, 8 deletions(-)
diff --git
-by: Max Gurtovoy
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
Documentation/driver-api/vfio.rst| 4 ++-
drivers/vfio/fsl-mc/vfio_fsl_mc.c| 7 ++---
drivers/vfio/mdev/vfio_mdev.c| 13 +++---
drivers/vfio
these really want the new open/close_device() semantics just change
the function over.
Reviewed-by: Zhenyu Wang
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 8
1 file changed, 4 insertions(+), 4 deletions
-by: Jason Gunthorpe
---
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 154 --
drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c| 6 +-
drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 7 -
3 files changed, 28 insertions(+), 139 deletions(-)
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
b
viewed-off-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 215 +++-
1 file changed, 91 insertions(+), 124 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index a1ae9a83a38621..721dcc99aaa
The core code no longer requires these ops to be defined, so delete these
empty functions and leave the op as NULL. mtty's functions only log a
pointless message, delete that entirely.
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia Huck
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index 5ac65894fcd38c..6974626ec1c5d0 100644
--- a/samples/vfio-mdev/mbochs.c
into sets.
This implementation uses xarray instead of searching through the driver
core structures, which simplifies the somewhat tricky locking in this
area.
Following patches convert all the drivers.
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
dr
ot;)
Reported-by: Cornelia Huck
Co-developed-by: Alex Williamson
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 24 +++-
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index e
ed by what devices
pci_reset_bus() touches, which is either the entire bus or only the slot.
Rely on the core code to do everything reflck was doing and delete reflck
entirely.
Signed-off-by: Yishai Hadas
Reviewed-by: Christoph Hellwig
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/
Platform simply wants to run some code when the device is first
opened/last closed. Use the core framework and locking for this. Aside
from removing a bit of code this narrows the locking scope from a global
lock.
Signed-off-by: Jason Gunthorpe
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia
g fix for singleton
- Acquire cur_mem under lock
- Always use error unwind flow for vfio_pci_check_all_devices_bound()
v1: https://lore.kernel.org/r/0-v1-eaf3ccbba33c+1add0-vfio_reflck_...@nvidia.com
Jason Gunthorpe (12):
vfio/samples: Remove module get/put
vfio/mbochs: Fix missing error unwin
On Wed, Jul 28, 2021 at 01:38:58PM +, Wang, Zhi A wrote:
> I guess those APIs you were talking about are KVM-only. For other
> hypervisors, e.g. Xen, ARCN cannot use the APIs you mentioned. Not
> sure if you have already noticed that VFIO is KVM-only right now.
There is very little hard
On Thu, Jul 22, 2021 at 01:26:36PM +0200, Gerd Hoffmann wrote:
> Hi,
>
> > https://github.com/intel/gvt-linux/blob/topic/gvt-xengt/drivers/gpu/drm/i915/gvt/xengt.c
>
> > But it's hard for some customers to contribute their own "hypervisor"
> > module to the upstream Linux kernel. I am thinking
On Fri, Jul 23, 2021 at 09:39:14AM +0200, Christoph Hellwig wrote:
> This looks unessecarily complicated. We can just try to load first
> and then store it under the same lock, e.g.:
Yes indeed, I went with this:
int vfio_assign_device_set(struct vfio_device *device, void *set_id)
{
On Fri, Jul 23, 2021 at 10:12:08AM +0200, Christoph Hellwig wrote:
> On Tue, Jul 20, 2021 at 02:42:56PM -0300, Jason Gunthorpe wrote:
> > Like vfio_pci_try_bus_reset() this code wants to reset all of the devices
> > in the "reset group" which is the same mem
On Fri, Jul 23, 2021 at 10:05:43AM +0200, Christoph Hellwig wrote:
> On Tue, Jul 20, 2021 at 02:42:55PM -0300, Jason Gunthorpe wrote:
> > Keep track of all the vfio_devices that have been added to the device set
> > and use this list in vfio_pci_try_bus_reset() instead of
On Fri, Jul 23, 2021 at 02:29:03PM +0200, Christoph Hellwig wrote:
> On Fri, Jul 23, 2021 at 09:22:27AM -0300, Jason Gunthorpe wrote:
> > > But do we even need the else part? Assingning _dev->dev is
> > > equivalent to the default per-device set anyway, isn't it?
> &g
On Fri, Jul 23, 2021 at 09:47:49AM +0200, Christoph Hellwig wrote:
> > @@ -2020,12 +2004,17 @@ static int vfio_pci_probe(struct pci_dev *pdev,
> > const struct pci_device_id *id)
> > INIT_LIST_HEAD(>vma_list);
> > init_rwsem(>memory_lock);
> >
> > - ret = vfio_pci_reflck_attach(vdev);
On Fri, Jul 23, 2021 at 09:45:21AM +0200, Christoph Hellwig wrote:
> Looks good,
>
> Reviewed-by: Christoph Hellwig
>
> On Tue, Jul 20, 2021 at 02:42:53PM -0300, Jason Gunthorpe wrote:
> > Platform simply wants to run some code when the device is first
> > opene
On Fri, Jul 23, 2021 at 09:44:35AM +0200, Christoph Hellwig wrote:
> On Tue, Jul 20, 2021 at 02:42:52PM -0300, Jason Gunthorpe wrote:
> > .write = vfio_fsl_mc_write,
> > @@ -625,13 +526,15 @@ static int vfio_fsl_mc_probe(struct fsl_mc_device
> > *mc_dev)
> >
On Thu, Jul 22, 2021 at 11:59:17AM -0500, Sierra Guiza, Alejandro (Alex) wrote:
>
> On 7/22/2021 7:23 AM, Jason Gunthorpe wrote:
> > On Sat, Jul 17, 2021 at 02:21:32PM -0500, Alex Sierra wrote:
> > > In order to configure device generic in test_hmm, two
> > > modu
On Thu, Jul 22, 2021 at 02:07:51PM +0100, Christoph Hellwig wrote:
> On Thu, Jul 22, 2021 at 10:00:40AM -0300, Jason Gunthorpe wrote:
> > this is better:
> >
> >struct sg_append_table state;
> >
> >sg_append_init(, sgt, gfp_mask);
> >
> >
On Sun, Jul 18, 2021 at 02:09:12PM +0300, Leon Romanovsky wrote:
> @@ -386,12 +414,14 @@ static struct scatterlist *get_next_sg(struct sg_table
> *table,
> return ERR_PTR(-ENOMEM);
> sg_init_table(new_sg, alloc_size);
> if (cur) {
> + if (total_nents)
> +
On Sat, Jul 17, 2021 at 02:21:32PM -0500, Alex Sierra wrote:
> In order to configure device generic in test_hmm, two
> module parameters should be passed, which correspon to the
> SP start address of each device (2) spm_addr_dev0 &
> spm_addr_dev1. If no parameters are passed, private device
>
On Tue, Jul 20, 2021 at 04:01:27PM -0600, Alex Williamson wrote:
> On Tue, 20 Jul 2021 14:42:48 -0300
> Jason Gunthorpe wrote:
>
> > Compared to mbochs_remove() two cases are missing from the
> > vfio_register_group_dev() unwind. Add them in.
> >
> > Fixes: 68
.
Since these really want the new open/close_device() semantics just change
the functions over.
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
drivers/s390/cio/vfio_ccw_ops.c | 8
drivers/s390/crypto/vfio_ap_ops.c | 8
2 files changed, 8 insertions(+), 8
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 201 +++-
1 file changed, 84 insertions(+), 117 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index fbc20f6d2dd412..d751d38f2175b6 100644
--- a/drivers/vfio/pci/vfio_p
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index fb81d11029e8a5..39002b07e692ac 100644
--- a/samples/vfio-mdev/mbochs.c
+++ b/samples/vfio-mdev
these really want the new open/close_device() semantics just change
the function over.
Reviewed-by: Zhenyu Wang
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm
ing corrects a call to pci_dev_driver() without holding the
device_lock() and removes a hard wiring to _pci_driver.
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 110 ++--
drivers/vfio/vfio.c | 10
include/linux/vfio.h| 2 +
The core code no longer requires these ops to be defined, so delete these
empty functions and leave the op as NULL. mtty's functions only log a
pointless message, delete that entirely.
Signed-off-by: Yishai Hadas
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev
Platform simply wants to run some code when the device is first
opened/last closed. Use the core framework and locking for this. Aside
from removing a bit of code this narrows the locking scope from a global
lock.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio
ed by what devices
pci_reset_bus() touches, which is either the entire bus or only the slot.
Rely on the core code to do everything reflck was doing and delete reflck
entirely.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c
if there is no op
- Fix style for else {}
- Spelling fix for singleton
- Acquire cur_mem under lock
- Always use error unwind flow for vfio_pci_check_all_devices_bound()
v1: https://lore.kernel.org/r/0-v1-eaf3ccbba33c+1add0-vfio_reflck_...@nvidia.com
Jason Gunthorpe (12):
vfio/samples: Remov
-by: Max Gurtovoy
Signed-off-by: Jason Gunthorpe
---
Documentation/driver-api/vfio.rst| 4 ++-
drivers/vfio/fsl-mc/vfio_fsl_mc.c| 7 ++---
drivers/vfio/mdev/vfio_mdev.c| 13 +++---
drivers/vfio/pci/vfio_pci.c | 6 +++--
drivers/vfio
-by: Jason Gunthorpe
---
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 153 --
drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c| 6 +-
drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 7 -
3 files changed, 27 insertions(+), 139 deletions(-)
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
b
Nothing uses this anymore, delete it.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_mdev.c | 22 --
drivers/vfio/vfio.c | 14 +-
include/linux/mdev.h | 7 ---
include/linux/vfio.h | 4
into sets.
This implementation uses xarray instead of searching through the driver
core structures, which simplifies the somewhat tricky locking in this
area.
Following patches convert all the drivers.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_md
Compared to mbochs_remove() two cases are missing from the
vfio_register_group_dev() unwind. Add them in.
Fixes: 681c1615f891 ("vfio/mbochs: Convert to use vfio_register_group_dev()")
Reported-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 7 +
ot;)
Fixes: 681c1615f891 ("vfio/mbochs: Convert to use vfio_register_group_dev()")
Reviewed-by: Cornelia Huck
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4
samples/vfio-mdev/mdpy.c | 4
2 files changed, 8 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c
On Tue, Jul 20, 2021 at 07:23:35PM +0300, Diana Craciun OSS wrote:
> I have tested the changes and everything works as expected.
Great, thanks, I added a Tested-by for you
Jason
On Tue, Jul 20, 2021 at 07:12:26PM +0300, Diana Craciun OSS wrote:
> On 7/15/2021 3:20 AM, Jason Gunthorpe wrote:
> > FSL uses the internal reflck to implement the open_device() functionality,
> > conversion to the core code is straightforward.
> >
> > The decis
On Mon, Jul 19, 2021 at 10:01:31AM -0300, Jason Gunthorpe wrote:
> On Mon, Jul 19, 2021 at 02:58:58PM +0200, Cornelia Huck wrote:
> > > - ret = device->ops->open(device);
> > > - if (ret) {
> > > - module_put(device->dev->driver->o
On Mon, Jul 19, 2021 at 02:58:58PM +0200, Cornelia Huck wrote:
> > - ret = device->ops->open(device);
> > - if (ret) {
> > - module_put(device->dev->driver->owner);
> > - vfio_device_put(device);
> > - return ret;
> > + mutex_lock(>dev_set->lock);
> > +
On Mon, Jul 19, 2021 at 02:11:38PM +0200, Cornelia Huck wrote:
> On Wed, Jul 14 2021, Jason Gunthorpe wrote:
>
> > From: Max Gurtovoy
> >
> > This pairs with vfio_init_group_dev() and allows undoing any state that is
> > stored in the vfio_device unrelated to r
On Thu, Jul 15, 2021 at 03:00:55PM -0600, Alex Williamson wrote:
> On Wed, 14 Jul 2021 21:20:38 -0300
> Jason Gunthorpe wrote:
> > +/*
> > + * We need to get memory_lock for each device, but devices can share
> > mmap_lock,
> > + * therefore we need to zap and hol
On Thu, Jul 15, 2021 at 06:58:31PM +0530, Kirti Wankhede wrote:
> > Review of all the drivers show that they are either already open coding
> > the first/last semantic or are buggy and missing it. All drivers are
> > migrated/fixed to the new open/close_device ops and the unused per-FD
> >
On Thu, Jul 15, 2021 at 06:49:05AM +0300, Leon Romanovsky wrote:
> On Wed, Jul 14, 2021 at 09:20:31PM -0300, Jason Gunthorpe wrote:
> > From: Max Gurtovoy
> >
> > This pairs with vfio_init_group_dev() and allows undoing any state that is
> > stored in the vfio_devic
.
Since these really want the new open/close_device() semantics just change
the functions over.
Signed-off-by: Jason Gunthorpe
---
drivers/s390/cio/vfio_ccw_ops.c | 8
drivers/s390/crypto/vfio_ap_ops.c | 8
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 205
1 file changed, 88 insertions(+), 117 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index fbc20f6d2dd412..ff23168b8dc551 100644
--- a/drivers/vfio/pci/vfio_p
ing corrects a call to pci_dev_driver() without holding the
device_lock() and removes a hard wiring to _pci_driver.
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c | 110 ++--
drivers/vfio/vfio.c | 10
include/linux/vfio.h| 2 +
ed by what devices
pci_reset_bus() touches, which is either the entire bus or only the slot.
Rely on the core code to do everything reflck was doing and delete reflck
entirely.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/pci/vfio_pci.c
the device set lock is actually protecting,
but I think it is related to the interrupt setup.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/fsl-mc/vfio_fsl_mc.c | 152 --
drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c| 6 +-
drivers/vfio/fsl
Nothing uses this anymore, delete it.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_mdev.c | 22 --
drivers/vfio/vfio.c | 14 +-
include/linux/mdev.h | 7 ---
include/linux/vfio.h | 4
mbochs_close() iterates over global device state and frees it. Currently
this is done every time a device FD is closed, but if multiple device FDs
are open this could corrupt other still active FDs.
Change this to use close_device() so it only runs on the last close.
Signed-off-by: Jason
these really want the new open/close_device() semantics just change
the function over.
Signed-off-by: Jason Gunthorpe
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
into sets.
This implementation uses xarray instead of searching through the driver
core structures, which simplifies the somewhat tricky locking in this
area.
Following patches convert all the drivers.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio/mdev/vfio_md
ot;)
Fixes: 681c1615f891 ("vfio/mbochs: Convert to use vfio_register_group_dev()")
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 4
samples/vfio-mdev/mdpy.c | 4
2 files changed, 8 deletions(-)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
Platform simply wants to run some code when the device is first
opened/last closed. Use the core framework and locking for this. Aside
from removing a bit of code this narrows the locking scope from a global
lock.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
drivers/vfio
The core code no longer requires these ops to be defined, so delete these
empty functions and leave the op as NULL. mtty's functions only log a
pointless message, delete that entirely.
Signed-off-by: Yishai Hadas
Signed-off-by: Jason Gunthorpe
---
samples/vfio-mdev/mbochs.c | 6
om the struct
pci_device.
Overall a few minor bugs are squashed and quite a bit of code is removed
through consolidation.
Jason Gunthorpe (11):
vfio/samples: Remove module get/put
vfio: Provide better generic support for open/release vfio_device_ops
vfio/samples: Delete useless open/
-by: Max Gurtovoy
Signed-off-by: Jason Gunthorpe
---
Documentation/driver-api/vfio.rst| 4 ++-
drivers/vfio/fsl-mc/vfio_fsl_mc.c| 6 +++--
drivers/vfio/mdev/vfio_mdev.c| 13 +++---
drivers/vfio/pci/vfio_pci.c | 6 +++--
drivers/vfio
On Tue, Jul 06, 2021 at 07:35:55PM +0200, Daniel Vetter wrote:
> Yup. We dont care about any of the fancy pieces you build on top, nor
> does the compiler need to be the optimizing one. Just something that's
> good enough to drive the hw in some demons to see how it works and all
> that.
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