On 9/29/2016 2:47 PM, Neo Jia wrote:
> On Thu, Sep 29, 2016 at 04:55:39PM +0800, Jike Song wrote:
>> Hi all,
>>
>> In order to have a clear understanding about the VFIO mdev upstreaming
>> status, I'd like to summarize it. Please share your opinions on this,
>> and correct my misunderstandings.
On 9/29/2016 3:16 PM, Xiao Guangrong wrote:
>
>
> On 09/29/2016 05:36 PM, Neo Jia wrote:
>> On Thu, Sep 29, 2016 at 05:05:47PM +0800, Xiao Guangrong wrote:
>>>
>>>
>>> On 09/29/2016 04:55 PM, Jike Song wrote:
Hi all,
In order to have a clear understanding about the VFIO mdev
On 9/30/2016 10:49 AM, Kirti Wankhede wrote:
>
...
>>>>>> Hi Daniel,
>>>>>>
>>>>>> Here you are proposing to add a class named "gpu", which will make all
>>>>>> those gpu
>>>>>> rela
- One GPU pass through and one vGPU device
- Linux VM hot plug and unplug vGPU device while GPU pass through device
exist
- Linux VM hot plug and unplug GPU pass through device while vGPU device
exist
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@n
operations
to vendor driver for mediated devices.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I583f4734752971d3d112324d69e2508c88f359ec
---
drivers/vfio/mdev/Kconfig | 6 ++
drivers/vfio/mdev/Makefile | 1 +
use mediated device
framework.
- Moved updated document and example driver to 'vfio-mdev' directory in
Documentation.
Kirti Wankhede (6):
vfio: Mediated device Core driver
vfio: VFIO based driver for Mediated devices
vfio iommu: Add support for mediated devices
docs: Add Documenta
ern int mdev_register_device(struct device *dev,
const struct parent_ops *ops);
extern void mdev_unregister_device(struct device *dev);
There are no locks to serialize above callbacks in mdev driver and
vfio_mdev driver. If required, vendor driver can have locks to serialize
above APIs
Sample driver creates mdev device that simulates serial port over PCI card.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I857f8f12f8b275f2498dfe8c628a5cdc7193b1b2
---
Documentation/vfio-mdev/Makefile
Add common functions for SET_IRQS and to add capability buffer for
GET_REGION_INFO ioctls
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Id9e976a2c08b9b2b37da77dac4365ae8f6024b4a
---
drivers/vfio/pci/vfio
Add file Documentation/vfio-mediated-device.txt that include details of
mediated device framework.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I137dd646442936090d92008b115908b7b2c7bc5d
---
Documentation/vfio-mdev/v
>> Medisted bus driver is responsible to add/delete mediated devices to/from
>
> Medisted -> Mediated
>
Thanks for pointing out the typeo. Correcting it.
>> VFIO group when devices are bound and unbound to the driver.
>>
>> 2. Physical device driver interface
>> This interface provides vendor
On 10/26/2016 12:49 PM, Tian, Kevin wrote:
>> From: Alex Williamson [mailto:alex.william...@redhat.com]
>> Sent: Monday, October 24, 2016 10:32 AM
>>
> -static long vfio_unpin_pages(unsigned long pfn, long npage,
> - int prot, bool do_accounting)
> +static long
>> +static void vfio_mdev_release(void *device_data)
>> +{
>> +struct mdev_device *mdev = device_data;
>> +struct parent_device *parent = mdev->parent;
>> +
>> +if (parent->ops->release)
>
> likely()
>
>> +parent->ops->release(mdev);
>> +
>> +module_put(THIS_MODULE);
On 10/27/2016 5:41 PM, Jike Song wrote:
> On 10/27/2016 05:29 AM, Kirti Wankhede wrote:
>> Update arguments of vaddr_get_pfn() to take struct mm_struct *mm as input
>> argument.
>>
>> Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
>> Signed-off-by:
On 10/27/2016 12:50 PM, Alexey Kardashevskiy wrote:
> On 18/10/16 08:22, Kirti Wankhede wrote:
>> VFIO IOMMU drivers are designed for the devices which are IOMMU capable.
>> Mediated device only uses IOMMU APIs, the underlying hardware can be
>> managed by an IO
On 10/28/2016 6:10 PM, Alex Williamson wrote:
> On Fri, 28 Oct 2016 15:33:58 +0800
> Jike Song <jike.s...@intel.com> wrote:
>
>> On 10/27/2016 05:29 AM, Kirti Wankhede wrote:
>>> Added blocking notifier to IOMMU TYPE1 driver to notify vendor drivers
>>>
On 11/8/2016 5:15 AM, Alex Williamson wrote:
> On Sat, 5 Nov 2016 02:40:45 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>>
>> +int vfio_register_notifier(struct device *dev, struct notifier_block *nb)
>
> Is the expectation here that this is
On 11/8/2016 4:46 AM, Alex Williamson wrote:
> On Sat, 5 Nov 2016 02:40:44 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>> -static void vfio_unmap_unpin(struct vfio_iommu *iommu, struct vfio_dma *dma)
>> +static int __vfio_pin_page_external(struct v
On 11/8/2016 10:09 PM, Alex Williamson wrote:
> On Tue, 8 Nov 2016 19:25:35 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>>>> -
>>>> + int (*pin_pages)(void *iommu_data, unsigned long *user_pfn,
>>>>
On 11/8/2016 12:59 PM, Alexey Kardashevskiy wrote:
> On 05/11/16 08:10, Kirti Wankhede wrote:
>> Vendor driver using mediated device framework should use
>> vfio_info_add_capability() to add capabilities.
>> Introduced this function to reduce code duplication in vendor driv
On 11/8/2016 2:16 PM, Alexey Kardashevskiy wrote:
> On 05/11/16 08:10, Kirti Wankhede wrote:
>> Vendor driver using mediated device framework would use same mechnism to
>> validate and prepare IRQs. Introducing this function to reduce code
>> replication in multiple driv
On 11/8/2016 2:22 PM, Alexey Kardashevskiy wrote:
> On 05/11/16 08:10, Kirti Wankhede wrote:
>> Updated vfio_platform_common.c file to use
>> vfio_set_irqs_validate_and_prepare()
>>
>> Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
>> Signed-off-by:
On 11/8/2016 2:55 PM, Dong Jia Shi wrote:
> * Kirti Wankhede <kwankh...@nvidia.com> [2016-11-05 02:40:35 +0530]:
>
> Hi Kirti,
>
> [...]
>> diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
>> index da6e2ce77495..23eced02aaf6 100644
>> --- a/dri
On 11/8/2016 11:16 PM, Alex Williamson wrote:
> On Tue, 8 Nov 2016 21:56:29 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> On 11/8/2016 5:15 AM, Alex Williamson wrote:
>>> On Sat, 5 Nov 2016 02:40:45 +0530
>>> Kirt
On 11/8/2016 2:33 AM, Alex Williamson wrote:
> On Sat, 5 Nov 2016 02:40:43 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>> static int vfio_dma_do_map(struct vfio_iommu *iommu,
>> struct vfio_iommu_type1_dma_map *map)
>>
On 11/7/2016 9:00 AM, Alexey Kardashevskiy wrote:
> On 05/11/16 08:10, Kirti Wankhede wrote:
>> This series adds Mediated device support to Linux host kernel. Purpose
>> of this series is to provide a common interface for mediated device
>> management that can be used
Verified that this patch series gets applied cleanly to Linux-next upto:
bc33b0ca11e3 Linux 4.9-rc4
Also tested this patch series with above kernel.
Thanks,
Kirti
On 11/7/2016 9:29 AM, Kirti Wankhede wrote:
>
>
> On 11/7/2016 9:00 AM, Alexey Kardashevskiy wrote:
>> On 05/11/
On 11/8/2016 1:06 AM, Alex Williamson wrote:
> On Sat, 5 Nov 2016 02:40:39 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>> +int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
>> + int npage, int prot, unsigned long *phy
This patch rearranges functions to get vfio_group from device
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I1f93262bdbab75094bc24b087b29da35ba70c4c6
---
drivers/vfio/vfio.c | 23 ---
1 file changed, 1
and unpin pages.
Renamed static functions in vfio_type1_iommu.c to resolve conflicts
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Ia7417723aaae86bec2959ad9ae6c2915ddd340e0
---
drivers/vfio/vfio.c
should use VFIO_IOMMU_NOTIFY_DMA_UNMAP action to invalidate
mappings.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I5910d0024d6be87f3e8d3e0ca0eaeaaa0b17f271
---
drivers/vfio/vfio.c
Added details of sysfs ABI for mediated device framework
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Icb0fd4ed58a2fa793fbcb1c3d5009a4403c1f3ac
---
Documentation/ABI/testing/sysfs-bus-vfio-mdev | 111 ++
Vendor driver using mediated device framework should use
vfio_info_add_capability() to add capabilities.
Introduced this function to reduce code duplication in vendor drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
operations
to vendor driver for mediated devices.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I583f4734752971d3d112324d69e2508c88f359ec
---
drivers/vfio/mdev/Kconfig | 9 ++-
drivers/vfio/mdev/Makefile| 1 +
drive
Updated vfio_pci.c file to use vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I9f3daba89d8dba5cb5b01a8cff420412f30686c7
---
drivers/vfio/pci/vfio_pci.c | 34 +++---
Add a notifier calback to parent's ops structure of mdev device so that per
device notifer for vfio module is registered through vfio_mdev module.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Iafa6f1721aecdd6e50eb93b153b5
The Sample driver creates mdev device that simulates serial port over PCI
card.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I857f8f12f8b275f2498dfe8c628a5cdc7193b1b2
---
Documentation/vfio-mediated-device.txt | 103 ++-
Vendor driver using mediated device framework would use same mechnism to
validate and prepare IRQs. Introducing this function to reduce code
replication in multiple drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
Adding myself as a maintainer of mediated device framework,
a sub module of VFIO.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I58f6717783e0d4008ca31f4a5c4494696bae8571
---
MAINTAINERS | 9 +
1 file changed,
Update arguments of vaddr_get_pfn() to take struct mm_struct *mm as input
argument.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I885fd4cd4a9f66f4ee2c1caf58267464ec239f52
---
drivers/vfio/vfio_iommu_
Update msix_sparse_mmap_cap() to use vfio_info_add_capability()
Update region type capability to use vfio_info_add_capability()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I52bb28c7875a6da5a79ddad1843e6088aff58a45
---
driv
This change rearrange functions to have common function to increment
container_users
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I8bdeb352bc8439b107ffd519480fd4dc238677f2
---
drivers/vfio
lows, bitmask check
Kirti Wankhede (22):
vfio: Mediated device Core driver
vfio: VFIO based driver for Mediated devices
vfio: Rearrange functions to get vfio_group from dev
vfio: Common function to increment container_users
vfio iommu: Added pin and unpin callback funct
Add file Documentation/vfio-mediated-device.txt that include details of
mediated device framework.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I137dd646442936090d92008b115908b7b2c7bc5d
---
Documentation/vfio-mediated-devi
Updated arguments of vfio_lock_acct to take mm structure as input argument
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I5d3673cc9d3786bb436b395d5f74537f1a36da80
---
drivers/vfio/vfio_iommu_type1.c | 22 ++
- Linux VM hot plug and unplug GPU pass through device while vGPU device
exist
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I295d6f0f2e0579b8d9882bfd8fd5a4194b97bd9a
---
drivers/vfio/vfio_iommu_t
Updated vfio_platform_common.c file to use
vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Id87cd6b78ae901610b39bf957974baa6f40cd7b0
---
drivers/vfio/platform/vfio_platform_c
ocks to serialize above callbacks in mdev driver and
vfio_mdev driver. If required, vendor driver can have locks to serialize
above APIs in their driver.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I73a5084574270b14541c5294
MAP is successful.
This address space structure is used to track pages pinned by external
user in later changes.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I7600f1bea6b384fd589fa72421ccf031bcfd9ac5
---
drivers/vfio/vfio_iomm
Add find_iommu_group()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I9d372f1ebe9eb01a5a21374b8a2b03f7df73601f
---
drivers/vfio/vfio_iommu_type1.c | 58 -
1 file changed, 34 inser
Defined device API strings. Vendor driver using mediated device
framework should use corresponding string for device_api attribute.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I42d29f475f02a7132ce13297fbf2b48f1da10995
---
On 11/7/2016 11:45 AM, Alexey Kardashevskiy wrote:
> On 07/11/16 14:59, Kirti Wankhede wrote:
>>
>>
>> On 11/7/2016 9:00 AM, Alexey Kardashevskiy wrote:
>>> On 05/11/16 08:10, Kirti Wankhede wrote:
...
>>>>
>>>> Patch series teste
On 10/18/2016 10:47 PM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 10:54:11 +0800
> Dong Jia Shi <bjsdj...@linux.vnet.ibm.com> wrote:
>
>> * Kirti Wankhede <kwankh...@nvidia.com> [2016-10-18 02:52:12 +0530]:
>>
>> ...snip...
>>
>>> +sta
On 10/19/2016 4:46 AM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 02:52:01 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>> +static struct mdev_device *__find_mdev_device(struct parent_device *parent,
>> +
On 10/12/2016 4:48 AM, Alex Williamson wrote:
> On Tue, 11 Oct 2016 01:58:37 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> Add common functions for SET_IRQS and to add capability buffer for
>> GET_REGION_INFO ioctls
>
> Clearly should be two
On 10/12/2016 4:01 PM, Tian, Kevin wrote:
>> From: Kirti Wankhede [mailto:kwankh...@nvidia.com]
>> Sent: Tuesday, October 11, 2016 4:29 AM
>>
> [...]
>> diff --git a/drivers/vfio/vfio_iommu_type1.c
>> b/drivers/vfio/vfio_iommu_type1.c
>> index 2ba19424e4a
ern int mdev_register_device(struct device *dev,
const struct parent_ops *ops);
extern void mdev_unregister_device(struct device *dev);
There are no locks to serialize above callbacks in mdev driver and
vfio_mdev driver. If required, vendor driver can have locks to serialize
above APIs
Function vfio_device_api_string() returns string based on flag set in
vfio_device_info's flag. This should be used by vendor driver to get string
based on flag for device_api attribute.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
Vendor driver using mediated device framework should use
vfio_info_add_capability() to add capabilities.
Introduced this function to reduce code duplication in vendor drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
Updated vfio_pci.c file to use vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I9f3daba89d8dba5cb5b01a8cff420412f30686c7
---
drivers/vfio/pci/vfio_pci.c | 29 +
Add file Documentation/vfio-mediated-device.txt that include details of
mediated device framework.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I137dd646442936090d92008b115908b7b2c7bc5d
---
Documentation/vfio-mdev/v
Vendor driver using mediated device framework would use same mechnism to
validate and prepare IRQs. Introducing this function to reduce code
replication in multiple drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
The Sample driver creates mdev device that simulates serial port over PCI
card.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I857f8f12f8b275f2498dfe8c628a5cdc7193b1b2
---
Documentation/vfio-mdev/Makefile
On 10/21/2016 12:54 AM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 02:52:06 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> Update msix_sparse_mmap_cap() to use vfio_info_add_capability()
>> Update region type capability to use vfio_info_add_capability()
On 10/21/2016 12:54 AM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 02:52:05 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> Vendor driver using mediated device framework should use
>> vfio_info_add_capability() to add capabilities.
>> Introd
On 10/21/2016 8:06 PM, Alex Williamson wrote:
> On Fri, 21 Oct 2016 15:49:07 +0800
> Jike Song <jike.s...@intel.com> wrote:
>
>> On 10/18/2016 05:22 AM, Kirti Wankhede wrote:
>>> diff --git a/drivers/vfio/vfio_iommu_type1.c
>>> b/drivers/vfio/vf
Alex,
Addressing your comments other than invalidation part.
On 10/20/2016 2:32 AM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 02:52:04 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>> Tested by assigning below combinations of devices to a single VM:
>&
On 10/21/2016 1:04 AM, Alex Williamson wrote:
> On Tue, 18 Oct 2016 02:52:10 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> Function vfio_device_api_string() returns string based on flag set in
>> vfio_device_info's flag. This should be used by vendor dr
On 10/21/2016 2:35 AM, Alex Williamson wrote:
> On Fri, 21 Oct 2016 01:59:55 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
>> On 10/21/2016 1:04 AM, Alex Williamson wrote:
>>> On Tue, 18 Oct 2016 02:52:10 +0530
>>> Kirti Wankhede <kwankh.
On 10/21/2016 2:52 AM, Alex Williamson wrote:
> On Fri, 21 Oct 2016 02:44:37 +0530
> Kirti Wankhede <kwankh...@nvidia.com> wrote:
>
...
>>>>>>
>>>>>> +extern const char *vfio_device_api_string(u32 flags);
>>>>>> +
Rearrange functions to have common function to increment container_users.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I1f93262bdbab75094bc24b087b29da35ba70c4c6
---
drivers/vfio
- One GPU pass through and one vGPU device
- Linux VM hot plug and unplug vGPU device while GPU pass through device
exist
- Linux VM hot plug and unplug GPU pass through device while vGPU device
exist
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@n
Documentation and sample driver, mtty.c, accordingly.
Kirti Wankhede (12):
vfio: Mediated device Core driver
vfio: VFIO based driver for Mediated devices
vfio: Rearrange functions to get vfio_group from dev
vfio iommu: Add support for mediated devices
vfio: Introduce common function to ad
Updated vfio_platform_common.c file to use
vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Id87cd6b78ae901610b39bf957974baa6f40cd7b0
---
drivers/vfio/platform/vfio_platform_c
Update msix_sparse_mmap_cap() to use vfio_info_add_capability()
Update region type capability to use vfio_info_add_capability()
Can't split this commit for MSIx and region_type cap since there is a
common code which need to be updated for both the cases.
Signed-off-by: Kirti Wankhede <kwa
these functions.
Renamed static functions in vfio_type1_iommu.c to resolve conflicts
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Ia7417723aaae86bec2959ad9ae6c2915ddd340e0
---
drivers/vfio/vfio.c
Added details of sysfs ABI for mediated device framework
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Icb0fd4ed58a2fa793fbcb1c3d5009a4403c1f3ac
---
Documentation/ABI/testing/sysfs-bus-vfio-mdev | 111 ++
should use VFIO_IOMMU_NOTIFY_DMA_UNMAP action to invalidate
mappings.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I5910d0024d6be87f3e8d3e0ca0eaeaaa0b17f271
---
drivers/vfio/vfio.c
The Sample driver creates mdev device that simulates serial port over PCI
card.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I857f8f12f8b275f2498dfe8c628a5cdc7193b1b2
---
Documentation/vfio-mediated-device.txt | 103 ++-
Add a notifier calback to parent's ops structure of mdev device so that per
device notifer for vfio module is registered through vfio_mdev module.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Iafa6f1721aecdd6e50eb93b153b5
Adding myself as a maintainer of mediated device framework,
a sub module of VFIO.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I58f6717783e0d4008ca31f4a5c4494696bae8571
---
MAINTAINERS | 9 +
1 file changed,
operations
to vendor driver for mediated devices.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Reviewed-by: Jike Song <jike.s...@intel.com>
Change-Id: I583f4734752971d3d112324d69e2508c88f359ec
---
drivers/vfio/mdev/Kconfig | 7 ++
. Since child shares same
address space, DMA_UNMAP is successful.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I7600f1bea6b384fd589fa72421ccf031bcfd9ac5
---
drivers/vfio/vfio_iommu_type1.c | 137 +--
ices to a single VM:
- GPU pass through only
- vGPU device only
- One GPU pass through and one vGPU device
- Linux VM hot plug and unplug vGPU device while GPU pass through device
exist
- Linux VM hot plug and unplug GPU pass through device while vGPU device
exist
Tested with Linux 4.9-rc5
Ki
Defined device API strings. Vendor driver using mediated device
framework should use corresponding string for device_api attribute.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I42d29f475f02a7132ce13297fbf2b48f1da10995
---
Updated vfio_pci.c file to use vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I9f3daba89d8dba5cb5b01a8cff420412f30686c7
---
drivers/vfio/pci/vfio_pci.c | 34 +++---
Update msix_sparse_mmap_cap() to use vfio_info_add_capability()
Update region type capability to use vfio_info_add_capability()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I52bb28c7875a6da5a79ddad1843e6088aff58a45
---
driv
Added task structure as input argument to vfio_lock_acct() function.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I5d3673cc9d3786bb436b395d5f74537f1a36da80
---
drivers/vfio/vfio_iommu_type1.c | 30 --
This change rearrange functions to have common function to increment
container_users
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Reviewed-by: Jike Song <jike.s...@intel.com>
Change-Id: I8bdeb352bc8439b107ffd519480fd4dc238677f2
Add file Documentation/vfio-mediated-device.txt that include details of
mediated device framework.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I137dd646442936090d92008b115908b7b2c7bc5d
---
Documentation/vfio-mediated-devi
Add find_iommu_group()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Reviewed-by: Jike Song <jike.s...@intel.com>
Reviewed-by: Dong Jia Shi <bjsdj...@linux.vnet.ibm.com>
Change-Id: I9d372f1ebe9eb01a5a21374b8a2b03f7df
This patch rearranges functions to get vfio_group from device
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Reviewed-by: Jike Song <jike.s...@intel.com>
Change-Id: I1f93262bdbab75094bc24b087b29da35ba70c4c6
---
driver
Vendor driver using mediated device framework would use same mechnism to
validate and prepare IRQs. Introducing this function to reduce code
replication in multiple drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com&g
ocks to serialize above callbacks in mdev driver and
vfio_mdev driver. If required, vendor driver can have locks to serialize
above APIs in their driver.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Reviewed-by: Jike Song <jike.s...@i
Update arguments of vaddr_get_pfn() to take struct mm_struct *mm as input
argument.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I885fd4cd4a9f66f4ee2c1caf58267464ec239f52
---
drivers/vfio/vfio_iommu_
gh device
exist
- Linux VM hot plug and unplug GPU pass through device while vGPU device
exist
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I295d6f0f2e0579b8d9882bfd8fd5a4194b97bd9a
---
drivers/vfio/vfi
is documented in a uapi header.
Changing vfio_info_cap_shift symbol to be available to all drivers.
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: I6fca329fa2291f37a2c859d0bc97574d9e2ce1a6
---
drivers/vfio/
Updated vfio_platform_common.c file to use
vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankh...@nvidia.com>
Signed-off-by: Neo Jia <c...@nvidia.com>
Change-Id: Id87cd6b78ae901610b39bf957974baa6f40cd7b0
---
drivers/vfio/platform/vfio_platform_c
On 11/15/2016 12:57 PM, Alexey Kardashevskiy wrote:
> On 15/11/16 17:33, Kirti Wankhede wrote:
>>
>>
>> On 11/15/2016 10:47 AM, Alexey Kardashevskiy wrote:
>>> On 08/11/16 17:52, Alexey Kardashevskiy wrote:
>>>> On 05/11/16 08:10, Kirti Wankhede wr
On 11/15/2016 12:15 PM, Jike Song wrote:
> On 11/14/2016 11:42 PM, Kirti Wankhede wrote:
>> Add a notifier calback to parent's ops structure of mdev device so that per
>> device notifer for vfio module is registered through vfio_mdev module.
>>
>> Signed-off
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