* Re: [PATCH v13 00/18] VFIO support for platform devices
[not found] <1422625584-3741-1-git-send-email-b.reynal@virtualopensystems.com>
@ 2015-02-26 17:02 ` Baptiste Reynal
2015-02-26 17:30 ` Alex Williamson
2015-02-26 17:32 ` Marc Zyngier
0 siblings, 2 replies; 4+ messages in thread
From: Baptiste Reynal @ 2015-02-26 17:02 UTC (permalink / raw)
To: kvm-arm, Linux IOMMU, Alex Williamson
Cc: Marc Zyngier, Will Deacon, VirtualOpenSystems Technical Team
[-- Attachment #1.1: Type: text/plain, Size: 5869 bytes --]
Hi everyone,
Are there any comments on this patch series? If not, Is there anything
keeping this series from getting merged upstream?
Thanks,
Baptiste
On Fri, Jan 30, 2015 at 2:46 PM, Baptiste Reynal <
b.reynal@virtualopensystems.com> wrote:
> This patch series aims to implement VFIO support for platform devices that
> reside behind an IOMMU. Examples of such devices are devices behind an ARM
> SMMU, or behind a Samsung Exynos System MMU.
>
> The API used is based on the existing VFIO API that is also used with PCI
> devices. Only devices that include a basic set of IRQs and memory regions
> are
> targeted; devices with complex relationships with other devices on a device
> tree are not taken into account at this stage.
>
> This patch series may be applied on the following series/patches:
> - [PATCH v3 0/6] vfio: type1: support for ARM SMMUS with VFIO_IOMMU_TYPE1
>
> A copy can be cloned from the branch vfio-platform-v13 at:
> git@github.com:virtualopensystems/linux-kvm-arm.git
>
> Changes since v12:
> - Reorder chunks to be bisect-able
> Changes since v11:
> - Drop support for ARM AMBA devices
> - vfio_platform_private.h is now self-contained
> - Fix masked IRQ initialization
> Changes since v10:
> - Check if interrupt is already masked when setting a new trigger
> - Fixed kasprintf with unchecked return value in VFIO AMBA driver
> Changes since v9:
> - Reworked the splitting of the patches that decouple virqfd from PCI
> - Some styling issues and typos
> - Removed superfluous includes
> - AMBA devices are now named vfio-amba- suffixed by the AMBA device id
> - Several other cleanups and fixes
> Changes since v8:
> - Separate irq handler for edge and level triggered interrupts
> - Mutex based lock for VFIO fd open/release
> - Fixed bug where the first region of a platform device wasn't exposed
> - Read only regions can be MMAPed only read only
> - Code cleanups
> Changes since v7:
> - Some initial placeholder functionality for PIO resources
> - Cleaned up code for IRQ triggering, masking and unmasking
> - Some functionality has been removed from this series and posted
> separately:
> - VFIO_IOMMU_TYPE1 support for ARM SMMUs
> - IOMMU NOEXEC patches
> - driver_override functionality for AMBA devices
> - Several fixes
> Changes since v6:
> - Integrated support for AMBA devices
> - Numerous cleanups and fixes
> Changes since v5:
> - Full eventfd support for IRQ masking and unmasking.
> - Changed IOMMU_EXEC to IOMMU_NOEXEC, along with related flags in VFIO.
> - Other fixes based on reviewer comments.
> Changes since v4:
> - Use static offsets for each region in the VFIO device fd
> - Include patch in the series for the ARM SMMU to expose IOMMU_EXEC
> availability via IOMMU_CAP_DMA_EXEC
> - Rebased on VFIO multi domain support:
> - IOMMU_EXEC is now available if at least one IOMMU in the container
> supports it
> - Expose IOMMU_EXEC if available via the capability VFIO_IOMMU_PROT_EXEC
> - Some bug fixes
> Changes since v3:
> - Use Kim Phillips' driver_probe_device()
> Changes since v2:
> - Fixed Read/Write and MMAP on device regions
> - Removed dependency on Device Tree
> - Interrupts support
> - Interrupt masking/unmasking
> - Automask level sensitive interrupts
> - Introduced VFIO_DMA_MAP_FLAG_EXEC
> - Code clean ups
>
> Antonios Motakis (18):
> vfio/platform: initial skeleton of VFIO support for platform devices
> vfio: platform: probe to devices on the platform bus
> vfio: platform: add the VFIO PLATFORM module to Kconfig
> vfio/platform: return info for bound device
> vfio/platform: return info for device memory mapped IO regions
> vfio/platform: read and write support for the device fd
> vfio/platform: support MMAP of MMIO regions
> vfio/platform: return IRQ info
> vfio/platform: initial interrupts support code
> vfio/platform: trigger an interrupt via eventfd
> vfio/platform: support for level sensitive interrupts
> vfio: add a vfio_ prefix to virqfd_enable and virqfd_disable and
> export
> vfio: virqfd: rename vfio_pci_virqfd_init and vfio_pci_virqfd_exit
> vfio: add local lock for virqfd instead of depending on VFIO PCI
> vfio: pass an opaque pointer on virqfd initialization
> vfio: move eventfd support code for VFIO_PCI to a separate file
> vfio: initialize the virqfd workqueue in VFIO generic code
> vfio/platform: implement IRQ masking/unmasking via an eventfd
>
> drivers/vfio/Kconfig | 1 +
> drivers/vfio/Makefile | 5 +-
> drivers/vfio/pci/vfio_pci.c | 8 -
> drivers/vfio/pci/vfio_pci_intrs.c | 238 +-----------
> drivers/vfio/pci/vfio_pci_private.h | 3 -
> drivers/vfio/platform/Kconfig | 9 +
> drivers/vfio/platform/Makefile | 4 +
> drivers/vfio/platform/vfio_platform.c | 103 +++++
> drivers/vfio/platform/vfio_platform_common.c | 521
> ++++++++++++++++++++++++++
> drivers/vfio/platform/vfio_platform_irq.c | 336 +++++++++++++++++
> drivers/vfio/platform/vfio_platform_private.h | 85 +++++
> drivers/vfio/vfio.c | 8 +
> drivers/vfio/virqfd.c | 213 +++++++++++
> include/linux/vfio.h | 27 ++
> include/uapi/linux/vfio.h | 1 +
> 15 files changed, 1326 insertions(+), 236 deletions(-)
> create mode 100644 drivers/vfio/platform/Kconfig
> create mode 100644 drivers/vfio/platform/Makefile
> create mode 100644 drivers/vfio/platform/vfio_platform.c
> create mode 100644 drivers/vfio/platform/vfio_platform_common.c
> create mode 100644 drivers/vfio/platform/vfio_platform_irq.c
> create mode 100644 drivers/vfio/platform/vfio_platform_private.h
> create mode 100644 drivers/vfio/virqfd.c
>
> --
> 2.2.2
>
>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v13 00/18] VFIO support for platform devices
2015-02-26 17:02 ` [PATCH v13 00/18] VFIO support for platform devices Baptiste Reynal
@ 2015-02-26 17:30 ` Alex Williamson
2015-02-26 17:32 ` Marc Zyngier
1 sibling, 0 replies; 4+ messages in thread
From: Alex Williamson @ 2015-02-26 17:30 UTC (permalink / raw)
To: Baptiste Reynal
Cc: Marc Zyngier, Will Deacon, Linux IOMMU,
VirtualOpenSystems Technical Team, kvm-arm
Hi Baptiste,
On Thu, 2015-02-26 at 18:02 +0100, Baptiste Reynal wrote:
> Hi everyone,
>
> Are there any comments on this patch series? If not, Is there anything
> keeping this series from getting merged upstream?
>
> Thanks,
> Baptiste
>
> On Fri, Jan 30, 2015 at 2:46 PM, Baptiste Reynal <
> b.reynal@virtualopensystems.com> wrote:
>
> > This patch series aims to implement VFIO support for platform devices that
> > reside behind an IOMMU. Examples of such devices are devices behind an ARM
> > SMMU, or behind a Samsung Exynos System MMU.
> >
> > The API used is based on the existing VFIO API that is also used with PCI
> > devices. Only devices that include a basic set of IRQs and memory regions
> > are
> > targeted; devices with complex relationships with other devices on a device
> > tree are not taken into account at this stage.
> >
> > This patch series may be applied on the following series/patches:
> > - [PATCH v3 0/6] vfio: type1: support for ARM SMMUS with VFIO_IOMMU_TYPE1
Unfortunately, this patch set you depend on seems to have been
abandoned:
http://www.spinics.net/lists/kvm/msg112976.html
We can't use an enum as a bitfield. This also highlights a bit of an
issue with vfio-platform, who is to be the sub-maintainer? Is it you?
Antonios? Me? I can't even test this code, so I'm hoping there's
someone signed up to prevent this code from immediately bit rotting.
Thanks,
Alex
> > A copy can be cloned from the branch vfio-platform-v13 at:
> > git@github.com:virtualopensystems/linux-kvm-arm.git
> >
> > Changes since v12:
> > - Reorder chunks to be bisect-able
> > Changes since v11:
> > - Drop support for ARM AMBA devices
> > - vfio_platform_private.h is now self-contained
> > - Fix masked IRQ initialization
> > Changes since v10:
> > - Check if interrupt is already masked when setting a new trigger
> > - Fixed kasprintf with unchecked return value in VFIO AMBA driver
> > Changes since v9:
> > - Reworked the splitting of the patches that decouple virqfd from PCI
> > - Some styling issues and typos
> > - Removed superfluous includes
> > - AMBA devices are now named vfio-amba- suffixed by the AMBA device id
> > - Several other cleanups and fixes
> > Changes since v8:
> > - Separate irq handler for edge and level triggered interrupts
> > - Mutex based lock for VFIO fd open/release
> > - Fixed bug where the first region of a platform device wasn't exposed
> > - Read only regions can be MMAPed only read only
> > - Code cleanups
> > Changes since v7:
> > - Some initial placeholder functionality for PIO resources
> > - Cleaned up code for IRQ triggering, masking and unmasking
> > - Some functionality has been removed from this series and posted
> > separately:
> > - VFIO_IOMMU_TYPE1 support for ARM SMMUs
> > - IOMMU NOEXEC patches
> > - driver_override functionality for AMBA devices
> > - Several fixes
> > Changes since v6:
> > - Integrated support for AMBA devices
> > - Numerous cleanups and fixes
> > Changes since v5:
> > - Full eventfd support for IRQ masking and unmasking.
> > - Changed IOMMU_EXEC to IOMMU_NOEXEC, along with related flags in VFIO.
> > - Other fixes based on reviewer comments.
> > Changes since v4:
> > - Use static offsets for each region in the VFIO device fd
> > - Include patch in the series for the ARM SMMU to expose IOMMU_EXEC
> > availability via IOMMU_CAP_DMA_EXEC
> > - Rebased on VFIO multi domain support:
> > - IOMMU_EXEC is now available if at least one IOMMU in the container
> > supports it
> > - Expose IOMMU_EXEC if available via the capability VFIO_IOMMU_PROT_EXEC
> > - Some bug fixes
> > Changes since v3:
> > - Use Kim Phillips' driver_probe_device()
> > Changes since v2:
> > - Fixed Read/Write and MMAP on device regions
> > - Removed dependency on Device Tree
> > - Interrupts support
> > - Interrupt masking/unmasking
> > - Automask level sensitive interrupts
> > - Introduced VFIO_DMA_MAP_FLAG_EXEC
> > - Code clean ups
> >
> > Antonios Motakis (18):
> > vfio/platform: initial skeleton of VFIO support for platform devices
> > vfio: platform: probe to devices on the platform bus
> > vfio: platform: add the VFIO PLATFORM module to Kconfig
> > vfio/platform: return info for bound device
> > vfio/platform: return info for device memory mapped IO regions
> > vfio/platform: read and write support for the device fd
> > vfio/platform: support MMAP of MMIO regions
> > vfio/platform: return IRQ info
> > vfio/platform: initial interrupts support code
> > vfio/platform: trigger an interrupt via eventfd
> > vfio/platform: support for level sensitive interrupts
> > vfio: add a vfio_ prefix to virqfd_enable and virqfd_disable and
> > export
> > vfio: virqfd: rename vfio_pci_virqfd_init and vfio_pci_virqfd_exit
> > vfio: add local lock for virqfd instead of depending on VFIO PCI
> > vfio: pass an opaque pointer on virqfd initialization
> > vfio: move eventfd support code for VFIO_PCI to a separate file
> > vfio: initialize the virqfd workqueue in VFIO generic code
> > vfio/platform: implement IRQ masking/unmasking via an eventfd
> >
> > drivers/vfio/Kconfig | 1 +
> > drivers/vfio/Makefile | 5 +-
> > drivers/vfio/pci/vfio_pci.c | 8 -
> > drivers/vfio/pci/vfio_pci_intrs.c | 238 +-----------
> > drivers/vfio/pci/vfio_pci_private.h | 3 -
> > drivers/vfio/platform/Kconfig | 9 +
> > drivers/vfio/platform/Makefile | 4 +
> > drivers/vfio/platform/vfio_platform.c | 103 +++++
> > drivers/vfio/platform/vfio_platform_common.c | 521
> > ++++++++++++++++++++++++++
> > drivers/vfio/platform/vfio_platform_irq.c | 336 +++++++++++++++++
> > drivers/vfio/platform/vfio_platform_private.h | 85 +++++
> > drivers/vfio/vfio.c | 8 +
> > drivers/vfio/virqfd.c | 213 +++++++++++
> > include/linux/vfio.h | 27 ++
> > include/uapi/linux/vfio.h | 1 +
> > 15 files changed, 1326 insertions(+), 236 deletions(-)
> > create mode 100644 drivers/vfio/platform/Kconfig
> > create mode 100644 drivers/vfio/platform/Makefile
> > create mode 100644 drivers/vfio/platform/vfio_platform.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_common.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_irq.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_private.h
> > create mode 100644 drivers/vfio/virqfd.c
> >
> > --
> > 2.2.2
> >
> >
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v13 00/18] VFIO support for platform devices
2015-02-26 17:02 ` [PATCH v13 00/18] VFIO support for platform devices Baptiste Reynal
2015-02-26 17:30 ` Alex Williamson
@ 2015-02-26 17:32 ` Marc Zyngier
2015-02-27 11:05 ` Baptiste Reynal
1 sibling, 1 reply; 4+ messages in thread
From: Marc Zyngier @ 2015-02-26 17:32 UTC (permalink / raw)
To: Baptiste Reynal, kvm-arm, Linux IOMMU, Alex Williamson
Cc: VirtualOpenSystems Technical Team, Will Deacon
Hi Baptiste,
On 26/02/15 17:02, Baptiste Reynal wrote:
> Hi everyone,
>
> Are there any comments on this patch series? If not, Is there
> anything keeping this series from getting merged upstream?
For a start, it looks like the dependency mentioned below is still not
in, which is a bit of a problem.
Also, trying to merge your branch below (after fixing the URL), I get
some conflicts with the current mainline, so that's a bit of a show
stopper too.
Can you start by rebasing on top of 4.0-rc1 with all the dependencies,
reposting the series, and cc-ing the original author of the patches (as
I cannot see Antonios on the CC list)?
Thanks,
M.
> Thanks,
> Baptiste
>
> On Fri, Jan 30, 2015 at 2:46 PM, Baptiste Reynal <b.reynal@virtualopensystems.com<mailto:b.reynal@virtualopensystems.com>> wrote:
> This patch series aims to implement VFIO support for platform devices that
> reside behind an IOMMU. Examples of such devices are devices behind an ARM
> SMMU, or behind a Samsung Exynos System MMU.
>
> The API used is based on the existing VFIO API that is also used with PCI
> devices. Only devices that include a basic set of IRQs and memory regions are
> targeted; devices with complex relationships with other devices on a device
> tree are not taken into account at this stage.
>
> This patch series may be applied on the following series/patches:
> - [PATCH v3 0/6] vfio: type1: support for ARM SMMUS with VFIO_IOMMU_TYPE1
>
> A copy can be cloned from the branch vfio-platform-v13 at:
> git@github.com:virtualopensystems/linux-kvm-arm.git
>
> Changes since v12:
> - Reorder chunks to be bisect-able
> Changes since v11:
> - Drop support for ARM AMBA devices
> - vfio_platform_private.h is now self-contained
> - Fix masked IRQ initialization
> Changes since v10:
> - Check if interrupt is already masked when setting a new trigger
> - Fixed kasprintf with unchecked return value in VFIO AMBA driver
> Changes since v9:
> - Reworked the splitting of the patches that decouple virqfd from PCI
> - Some styling issues and typos
> - Removed superfluous includes
> - AMBA devices are now named vfio-amba- suffixed by the AMBA device id
> - Several other cleanups and fixes
> Changes since v8:
> - Separate irq handler for edge and level triggered interrupts
> - Mutex based lock for VFIO fd open/release
> - Fixed bug where the first region of a platform device wasn't exposed
> - Read only regions can be MMAPed only read only
> - Code cleanups
> Changes since v7:
> - Some initial placeholder functionality for PIO resources
> - Cleaned up code for IRQ triggering, masking and unmasking
> - Some functionality has been removed from this series and posted separately:
> - VFIO_IOMMU_TYPE1 support for ARM SMMUs
> - IOMMU NOEXEC patches
> - driver_override functionality for AMBA devices
> - Several fixes
> Changes since v6:
> - Integrated support for AMBA devices
> - Numerous cleanups and fixes
> Changes since v5:
> - Full eventfd support for IRQ masking and unmasking.
> - Changed IOMMU_EXEC to IOMMU_NOEXEC, along with related flags in VFIO.
> - Other fixes based on reviewer comments.
> Changes since v4:
> - Use static offsets for each region in the VFIO device fd
> - Include patch in the series for the ARM SMMU to expose IOMMU_EXEC
> availability via IOMMU_CAP_DMA_EXEC
> - Rebased on VFIO multi domain support:
> - IOMMU_EXEC is now available if at least one IOMMU in the container
> supports it
> - Expose IOMMU_EXEC if available via the capability VFIO_IOMMU_PROT_EXEC
> - Some bug fixes
> Changes since v3:
> - Use Kim Phillips' driver_probe_device()
> Changes since v2:
> - Fixed Read/Write and MMAP on device regions
> - Removed dependency on Device Tree
> - Interrupts support
> - Interrupt masking/unmasking
> - Automask level sensitive interrupts
> - Introduced VFIO_DMA_MAP_FLAG_EXEC
> - Code clean ups
>
> Antonios Motakis (18):
> vfio/platform: initial skeleton of VFIO support for platform devices
> vfio: platform: probe to devices on the platform bus
> vfio: platform: add the VFIO PLATFORM module to Kconfig
> vfio/platform: return info for bound device
> vfio/platform: return info for device memory mapped IO regions
> vfio/platform: read and write support for the device fd
> vfio/platform: support MMAP of MMIO regions
> vfio/platform: return IRQ info
> vfio/platform: initial interrupts support code
> vfio/platform: trigger an interrupt via eventfd
> vfio/platform: support for level sensitive interrupts
> vfio: add a vfio_ prefix to virqfd_enable and virqfd_disable and
> export
> vfio: virqfd: rename vfio_pci_virqfd_init and vfio_pci_virqfd_exit
> vfio: add local lock for virqfd instead of depending on VFIO PCI
> vfio: pass an opaque pointer on virqfd initialization
> vfio: move eventfd support code for VFIO_PCI to a separate file
> vfio: initialize the virqfd workqueue in VFIO generic code
> vfio/platform: implement IRQ masking/unmasking via an eventfd
>
> drivers/vfio/Kconfig | 1 +
> drivers/vfio/Makefile | 5 +-
> drivers/vfio/pci/vfio_pci.c | 8 -
> drivers/vfio/pci/vfio_pci_intrs.c | 238 +-----------
> drivers/vfio/pci/vfio_pci_private.h | 3 -
> drivers/vfio/platform/Kconfig | 9 +
> drivers/vfio/platform/Makefile | 4 +
> drivers/vfio/platform/vfio_platform.c | 103 +++++
> drivers/vfio/platform/vfio_platform_common.c | 521 ++++++++++++++++++++++++++
> drivers/vfio/platform/vfio_platform_irq.c | 336 +++++++++++++++++
> drivers/vfio/platform/vfio_platform_private.h | 85 +++++
> drivers/vfio/vfio.c | 8 +
> drivers/vfio/virqfd.c | 213 +++++++++++
> include/linux/vfio.h | 27 ++
> include/uapi/linux/vfio.h | 1 +
> 15 files changed, 1326 insertions(+), 236 deletions(-)
> create mode 100644 drivers/vfio/platform/Kconfig
> create mode 100644 drivers/vfio/platform/Makefile
> create mode 100644 drivers/vfio/platform/vfio_platform.c
> create mode 100644 drivers/vfio/platform/vfio_platform_common.c
> create mode 100644 drivers/vfio/platform/vfio_platform_irq.c
> create mode 100644 drivers/vfio/platform/vfio_platform_private.h
> create mode 100644 drivers/vfio/virqfd.c
>
> --
> 2.2.2
>
>
--
Jazz is not dead. It just smells funny...
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v13 00/18] VFIO support for platform devices
2015-02-26 17:32 ` Marc Zyngier
@ 2015-02-27 11:05 ` Baptiste Reynal
0 siblings, 0 replies; 4+ messages in thread
From: Baptiste Reynal @ 2015-02-27 11:05 UTC (permalink / raw)
To: Marc Zyngier
Cc: Will Deacon, Alex Williamson, Linux IOMMU,
VirtualOpenSystems Technical Team, kvm-arm
[-- Attachment #1.1: Type: text/plain, Size: 7117 bytes --]
Thanks for your answers.
I am now the sub-maintainer of vfio-platform. I will handle the rebase of
these serie and fix "[PATCH v3 0/6] vfio: type1: support for ARM SMMUS with
VFIO_IOMMU_TYPE1". New versions are coming soon.
Regards,
Baptiste
On Thu, Feb 26, 2015 at 6:32 PM, Marc Zyngier <marc.zyngier@arm.com> wrote:
> Hi Baptiste,
>
> On 26/02/15 17:02, Baptiste Reynal wrote:
> > Hi everyone,
> >
> > Are there any comments on this patch series? If not, Is there
> > anything keeping this series from getting merged upstream?
>
> For a start, it looks like the dependency mentioned below is still not
> in, which is a bit of a problem.
>
> Also, trying to merge your branch below (after fixing the URL), I get
> some conflicts with the current mainline, so that's a bit of a show
> stopper too.
>
> Can you start by rebasing on top of 4.0-rc1 with all the dependencies,
> reposting the series, and cc-ing the original author of the patches (as
> I cannot see Antonios on the CC list)?
>
> Thanks,
>
> M.
>
> > Thanks,
> > Baptiste
> >
> > On Fri, Jan 30, 2015 at 2:46 PM, Baptiste Reynal <
> b.reynal@virtualopensystems.com<mailto:b.reynal@virtualopensystems.com>>
> wrote:
> > This patch series aims to implement VFIO support for platform devices
> that
> > reside behind an IOMMU. Examples of such devices are devices behind an
> ARM
> > SMMU, or behind a Samsung Exynos System MMU.
> >
> > The API used is based on the existing VFIO API that is also used with PCI
> > devices. Only devices that include a basic set of IRQs and memory
> regions are
> > targeted; devices with complex relationships with other devices on a
> device
> > tree are not taken into account at this stage.
> >
> > This patch series may be applied on the following series/patches:
> > - [PATCH v3 0/6] vfio: type1: support for ARM SMMUS with
> VFIO_IOMMU_TYPE1
> >
> > A copy can be cloned from the branch vfio-platform-v13 at:
> > git@github.com:virtualopensystems/linux-kvm-arm.git
> >
> > Changes since v12:
> > - Reorder chunks to be bisect-able
> > Changes since v11:
> > - Drop support for ARM AMBA devices
> > - vfio_platform_private.h is now self-contained
> > - Fix masked IRQ initialization
> > Changes since v10:
> > - Check if interrupt is already masked when setting a new trigger
> > - Fixed kasprintf with unchecked return value in VFIO AMBA driver
> > Changes since v9:
> > - Reworked the splitting of the patches that decouple virqfd from PCI
> > - Some styling issues and typos
> > - Removed superfluous includes
> > - AMBA devices are now named vfio-amba- suffixed by the AMBA device id
> > - Several other cleanups and fixes
> > Changes since v8:
> > - Separate irq handler for edge and level triggered interrupts
> > - Mutex based lock for VFIO fd open/release
> > - Fixed bug where the first region of a platform device wasn't exposed
> > - Read only regions can be MMAPed only read only
> > - Code cleanups
> > Changes since v7:
> > - Some initial placeholder functionality for PIO resources
> > - Cleaned up code for IRQ triggering, masking and unmasking
> > - Some functionality has been removed from this series and posted
> separately:
> > - VFIO_IOMMU_TYPE1 support for ARM SMMUs
> > - IOMMU NOEXEC patches
> > - driver_override functionality for AMBA devices
> > - Several fixes
> > Changes since v6:
> > - Integrated support for AMBA devices
> > - Numerous cleanups and fixes
> > Changes since v5:
> > - Full eventfd support for IRQ masking and unmasking.
> > - Changed IOMMU_EXEC to IOMMU_NOEXEC, along with related flags in VFIO.
> > - Other fixes based on reviewer comments.
> > Changes since v4:
> > - Use static offsets for each region in the VFIO device fd
> > - Include patch in the series for the ARM SMMU to expose IOMMU_EXEC
> > availability via IOMMU_CAP_DMA_EXEC
> > - Rebased on VFIO multi domain support:
> > - IOMMU_EXEC is now available if at least one IOMMU in the container
> > supports it
> > - Expose IOMMU_EXEC if available via the capability
> VFIO_IOMMU_PROT_EXEC
> > - Some bug fixes
> > Changes since v3:
> > - Use Kim Phillips' driver_probe_device()
> > Changes since v2:
> > - Fixed Read/Write and MMAP on device regions
> > - Removed dependency on Device Tree
> > - Interrupts support
> > - Interrupt masking/unmasking
> > - Automask level sensitive interrupts
> > - Introduced VFIO_DMA_MAP_FLAG_EXEC
> > - Code clean ups
> >
> > Antonios Motakis (18):
> > vfio/platform: initial skeleton of VFIO support for platform devices
> > vfio: platform: probe to devices on the platform bus
> > vfio: platform: add the VFIO PLATFORM module to Kconfig
> > vfio/platform: return info for bound device
> > vfio/platform: return info for device memory mapped IO regions
> > vfio/platform: read and write support for the device fd
> > vfio/platform: support MMAP of MMIO regions
> > vfio/platform: return IRQ info
> > vfio/platform: initial interrupts support code
> > vfio/platform: trigger an interrupt via eventfd
> > vfio/platform: support for level sensitive interrupts
> > vfio: add a vfio_ prefix to virqfd_enable and virqfd_disable and
> > export
> > vfio: virqfd: rename vfio_pci_virqfd_init and vfio_pci_virqfd_exit
> > vfio: add local lock for virqfd instead of depending on VFIO PCI
> > vfio: pass an opaque pointer on virqfd initialization
> > vfio: move eventfd support code for VFIO_PCI to a separate file
> > vfio: initialize the virqfd workqueue in VFIO generic code
> > vfio/platform: implement IRQ masking/unmasking via an eventfd
> >
> > drivers/vfio/Kconfig | 1 +
> > drivers/vfio/Makefile | 5 +-
> > drivers/vfio/pci/vfio_pci.c | 8 -
> > drivers/vfio/pci/vfio_pci_intrs.c | 238 +-----------
> > drivers/vfio/pci/vfio_pci_private.h | 3 -
> > drivers/vfio/platform/Kconfig | 9 +
> > drivers/vfio/platform/Makefile | 4 +
> > drivers/vfio/platform/vfio_platform.c | 103 +++++
> > drivers/vfio/platform/vfio_platform_common.c | 521
> ++++++++++++++++++++++++++
> > drivers/vfio/platform/vfio_platform_irq.c | 336 +++++++++++++++++
> > drivers/vfio/platform/vfio_platform_private.h | 85 +++++
> > drivers/vfio/vfio.c | 8 +
> > drivers/vfio/virqfd.c | 213 +++++++++++
> > include/linux/vfio.h | 27 ++
> > include/uapi/linux/vfio.h | 1 +
> > 15 files changed, 1326 insertions(+), 236 deletions(-)
> > create mode 100644 drivers/vfio/platform/Kconfig
> > create mode 100644 drivers/vfio/platform/Makefile
> > create mode 100644 drivers/vfio/platform/vfio_platform.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_common.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_irq.c
> > create mode 100644 drivers/vfio/platform/vfio_platform_private.h
> > create mode 100644 drivers/vfio/virqfd.c
> >
> > --
> > 2.2.2
> >
> >
>
>
> --
> Jazz is not dead. It just smells funny...
>
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2015-02-26 17:02 ` [PATCH v13 00/18] VFIO support for platform devices Baptiste Reynal
2015-02-26 17:30 ` Alex Williamson
2015-02-26 17:32 ` Marc Zyngier
2015-02-27 11:05 ` Baptiste Reynal
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