From: Kirti Wankhede <kwankhede@nvidia.com> To: <alex.williamson@redhat.com>, <pbonzini@redhat.com>, <kraxel@redhat.com>, <cjia@nvidia.com> Cc: <qemu-devel@nongnu.org>, <kvm@vger.kernel.org>, <kevin.tian@intel.com>, <jike.song@intel.com>, <bjsdjshi@linux.vnet.ibm.com>, <linux-kernel@vger.kernel.org>, Kirti Wankhede <kwankhede@nvidia.com> Subject: [PATCH v14 00/22] Add Mediated device support Date: Thu, 17 Nov 2016 02:16:12 +0530 [thread overview] Message-ID: <1479329194-10247-1-git-send-email-kwankhede@nvidia.com> (raw) 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 by different devices. This series introduces Mdev core module that creates and manages mediated devices, VFIO based driver for mediated devices that are created by mdev core module and update VFIO type1 IOMMU module to support pinning & unpinning for mediated devices. What changed v13-> v14? - Added retries to notify DMA_UNMAP, if pfn_list is not empty. - Added BUG_ON if pages are not unpined during DMA_UNMAP after 10 retries. - Removed unpinning from detach_group() and release() and added WARN_ON if pfn_list is not empty. - Updated page accounting logic. Tested by assigning below combinations of devices 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-next upto commit e76d21c40bd6. 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 functions to vfio_iommu_driver_ops vfio iommu type1: Update arguments of vfio_lock_acct vfio iommu type1: Update argument of vaddr_get_pfn() vfio iommu type1: Add find_iommu_group() function vfio iommu type1: Add task structure to vfio_dma vfio iommu type1: Add support for mediated devices vfio iommu: Add blocking notifier to notify DMA_UNMAP vfio: Add notifier callback to parent's ops structure of mdev vfio: Introduce common function to add capabilities vfio_pci: Update vfio_pci to use vfio_info_add_capability() vfio: Introduce vfio_set_irqs_validate_and_prepare() vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() vfio: Define device_api strings docs: Add Documentation for Mediated devices docs: Sysfs ABI for mediated device framework docs: Sample driver to demonstrate how to use Mediated device framework. MAINTAINERS: Add entry VFIO based Mediated device drivers Documentation/ABI/testing/sysfs-bus-vfio-mdev | 111 ++ Documentation/vfio-mediated-device.txt | 399 +++++++ MAINTAINERS | 9 + drivers/vfio/Kconfig | 1 + drivers/vfio/Makefile | 1 + drivers/vfio/mdev/Kconfig | 17 + drivers/vfio/mdev/Makefile | 5 + drivers/vfio/mdev/mdev_core.c | 385 +++++++ drivers/vfio/mdev/mdev_driver.c | 119 ++ drivers/vfio/mdev/mdev_private.h | 41 + drivers/vfio/mdev/mdev_sysfs.c | 286 +++++ drivers/vfio/mdev/vfio_mdev.c | 180 +++ drivers/vfio/pci/vfio_pci.c | 83 +- drivers/vfio/platform/vfio_platform_common.c | 31 +- drivers/vfio/vfio.c | 340 +++++- drivers/vfio/vfio_iommu_type1.c | 872 +++++++++++--- include/linux/mdev.h | 177 +++ include/linux/vfio.h | 32 +- include/uapi/linux/vfio.h | 10 + samples/vfio-mdev/Makefile | 13 + samples/vfio-mdev/mtty.c | 1503 +++++++++++++++++++++++++ 21 files changed, 4358 insertions(+), 257 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-vfio-mdev create mode 100644 Documentation/vfio-mediated-device.txt create mode 100644 drivers/vfio/mdev/Kconfig create mode 100644 drivers/vfio/mdev/Makefile create mode 100644 drivers/vfio/mdev/mdev_core.c create mode 100644 drivers/vfio/mdev/mdev_driver.c create mode 100644 drivers/vfio/mdev/mdev_private.h create mode 100644 drivers/vfio/mdev/mdev_sysfs.c create mode 100644 drivers/vfio/mdev/vfio_mdev.c create mode 100644 include/linux/mdev.h create mode 100644 samples/vfio-mdev/Makefile create mode 100644 samples/vfio-mdev/mtty.c -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: Kirti Wankhede <kwankhede@nvidia.com> To: alex.williamson@redhat.com, pbonzini@redhat.com, kraxel@redhat.com, cjia@nvidia.com Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, kevin.tian@intel.com, jike.song@intel.com, bjsdjshi@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com> Subject: [Qemu-devel] [PATCH v14 00/22] Add Mediated device support Date: Thu, 17 Nov 2016 02:16:12 +0530 [thread overview] Message-ID: <1479329194-10247-1-git-send-email-kwankhede@nvidia.com> (raw) 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 by different devices. This series introduces Mdev core module that creates and manages mediated devices, VFIO based driver for mediated devices that are created by mdev core module and update VFIO type1 IOMMU module to support pinning & unpinning for mediated devices. What changed v13-> v14? - Added retries to notify DMA_UNMAP, if pfn_list is not empty. - Added BUG_ON if pages are not unpined during DMA_UNMAP after 10 retries. - Removed unpinning from detach_group() and release() and added WARN_ON if pfn_list is not empty. - Updated page accounting logic. Tested by assigning below combinations of devices 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-next upto commit e76d21c40bd6. 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 functions to vfio_iommu_driver_ops vfio iommu type1: Update arguments of vfio_lock_acct vfio iommu type1: Update argument of vaddr_get_pfn() vfio iommu type1: Add find_iommu_group() function vfio iommu type1: Add task structure to vfio_dma vfio iommu type1: Add support for mediated devices vfio iommu: Add blocking notifier to notify DMA_UNMAP vfio: Add notifier callback to parent's ops structure of mdev vfio: Introduce common function to add capabilities vfio_pci: Update vfio_pci to use vfio_info_add_capability() vfio: Introduce vfio_set_irqs_validate_and_prepare() vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() vfio: Define device_api strings docs: Add Documentation for Mediated devices docs: Sysfs ABI for mediated device framework docs: Sample driver to demonstrate how to use Mediated device framework. MAINTAINERS: Add entry VFIO based Mediated device drivers Documentation/ABI/testing/sysfs-bus-vfio-mdev | 111 ++ Documentation/vfio-mediated-device.txt | 399 +++++++ MAINTAINERS | 9 + drivers/vfio/Kconfig | 1 + drivers/vfio/Makefile | 1 + drivers/vfio/mdev/Kconfig | 17 + drivers/vfio/mdev/Makefile | 5 + drivers/vfio/mdev/mdev_core.c | 385 +++++++ drivers/vfio/mdev/mdev_driver.c | 119 ++ drivers/vfio/mdev/mdev_private.h | 41 + drivers/vfio/mdev/mdev_sysfs.c | 286 +++++ drivers/vfio/mdev/vfio_mdev.c | 180 +++ drivers/vfio/pci/vfio_pci.c | 83 +- drivers/vfio/platform/vfio_platform_common.c | 31 +- drivers/vfio/vfio.c | 340 +++++- drivers/vfio/vfio_iommu_type1.c | 872 +++++++++++--- include/linux/mdev.h | 177 +++ include/linux/vfio.h | 32 +- include/uapi/linux/vfio.h | 10 + samples/vfio-mdev/Makefile | 13 + samples/vfio-mdev/mtty.c | 1503 +++++++++++++++++++++++++ 21 files changed, 4358 insertions(+), 257 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-vfio-mdev create mode 100644 Documentation/vfio-mediated-device.txt create mode 100644 drivers/vfio/mdev/Kconfig create mode 100644 drivers/vfio/mdev/Makefile create mode 100644 drivers/vfio/mdev/mdev_core.c create mode 100644 drivers/vfio/mdev/mdev_driver.c create mode 100644 drivers/vfio/mdev/mdev_private.h create mode 100644 drivers/vfio/mdev/mdev_sysfs.c create mode 100644 drivers/vfio/mdev/vfio_mdev.c create mode 100644 include/linux/mdev.h create mode 100644 samples/vfio-mdev/Makefile create mode 100644 samples/vfio-mdev/mtty.c -- 2.7.0
next reply other threads:[~2016-11-16 20:45 UTC|newest] Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-16 20:46 Kirti Wankhede [this message] 2016-11-16 20:46 ` [Qemu-devel] [PATCH v14 00/22] Add Mediated device support Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 01/22] vfio: Mediated device Core driver Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 02/22] vfio: VFIO based driver for Mediated devices Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 03/22] vfio: Rearrange functions to get vfio_group from dev Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 04/22] vfio: Common function to increment container_users Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 05/22] vfio iommu: Added pin and unpin callback functions to vfio_iommu_driver_ops Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 06/22] vfio iommu type1: Update arguments of vfio_lock_acct Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 07/22] vfio iommu type1: Update argument of vaddr_get_pfn() Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 08/22] vfio iommu type1: Add find_iommu_group() function Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 11:29 ` Auger Eric 2016-11-21 11:29 ` [Qemu-devel] " Auger Eric 2016-11-21 11:55 ` Kirti Wankhede 2016-11-21 11:55 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 12:42 ` Auger Eric 2016-11-21 12:42 ` [Qemu-devel] " Auger Eric 2016-11-16 20:46 ` [PATCH v14 09/22] vfio iommu type1: Add task structure to vfio_dma Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 5:41 ` Alexey Kardashevskiy 2016-11-17 5:41 ` [Qemu-devel] " Alexey Kardashevskiy 2016-11-17 6:12 ` Alex Williamson 2016-11-17 6:12 ` [Qemu-devel] " Alex Williamson 2016-11-17 6:42 ` Alexey Kardashevskiy 2016-11-17 6:42 ` [Qemu-devel] " Alexey Kardashevskiy 2016-11-17 6:23 ` Kirti Wankhede 2016-11-17 6:23 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 10/22] vfio iommu type1: Add support for mediated devices Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 23:57 ` Alex Williamson 2016-11-16 23:57 ` [Qemu-devel] " Alex Williamson 2016-11-17 4:49 ` Kirti Wankhede 2016-11-17 4:49 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 4:52 ` Kirti Wankhede 2016-11-17 4:52 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 11/22] vfio iommu: Add blocking notifier to notify DMA_UNMAP Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 0:02 ` Alex Williamson 2016-11-17 0:02 ` [Qemu-devel] " Alex Williamson 2016-11-17 2:53 ` Jike Song 2016-11-17 2:53 ` [Qemu-devel] " Jike Song 2016-11-17 4:58 ` Kirti Wankhede 2016-11-17 4:58 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 12/22] vfio: Add notifier callback to parent's ops structure of mdev Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 2:15 ` Dong Jia Shi 2016-11-17 5:05 ` Kirti Wankhede 2016-11-17 5:05 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 2:15 ` Dong Jia Shi 2016-11-17 5:04 ` Kirti Wankhede 2016-11-17 5:04 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 12:35 ` Jike Song 2016-11-17 12:35 ` [Qemu-devel] " Jike Song 2016-11-17 12:35 ` Jike Song 2016-11-17 15:27 ` Alex Williamson 2016-11-17 15:27 ` [Qemu-devel] " Alex Williamson 2016-11-17 15:27 ` Alex Williamson 2016-11-17 16:00 ` Kirti Wankhede 2016-11-17 16:00 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 16:00 ` Kirti Wankhede 2016-11-17 16:14 ` Alex Williamson 2016-11-17 16:14 ` [Qemu-devel] " Alex Williamson 2016-11-17 16:14 ` Alex Williamson 2016-11-16 20:46 ` [PATCH v14 13/22] vfio: Introduce common function to add capabilities Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 11:04 ` Auger Eric 2016-11-16 20:46 ` [PATCH v14 14/22] vfio_pci: Update vfio_pci to use vfio_info_add_capability() Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 11:04 ` Auger Eric 2016-11-21 11:04 ` [Qemu-devel] " Auger Eric 2016-11-16 20:46 ` [PATCH v14 15/22] vfio: Introduce vfio_set_irqs_validate_and_prepare() Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 10:51 ` Auger Eric 2016-11-21 10:51 ` [Qemu-devel] " Auger Eric 2016-11-16 20:46 ` [PATCH v14 16/22] vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 10:51 ` Auger Eric 2016-11-21 10:51 ` [Qemu-devel] " Auger Eric 2016-11-16 20:46 ` [PATCH v14 17/22] vfio_platform: " Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-21 10:51 ` Auger Eric 2016-11-21 10:51 ` [Qemu-devel] " Auger Eric 2016-11-16 20:46 ` [PATCH v14 18/22] vfio: Define device_api strings Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 19/22] docs: Add Documentation for Mediated devices Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 20/22] docs: Sysfs ABI for mediated device framework Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 21/22] docs: Sample driver to demonstrate how to use Mediated " Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-16 20:46 ` [PATCH v14 22/22] MAINTAINERS: Add entry VFIO based Mediated device drivers Kirti Wankhede 2016-11-16 20:46 ` [Qemu-devel] " Kirti Wankhede 2016-11-17 21:25 ` [PATCH v14 00/22] Add Mediated device support Alex Williamson 2016-11-17 21:25 ` [Qemu-devel] " Alex Williamson 2016-11-17 22:05 ` Neo Jia 2016-11-17 22:05 ` [Qemu-devel] " Neo Jia 2016-11-18 2:00 ` Kirti Wankhede 2016-11-18 2:00 ` [Qemu-devel] " Kirti Wankhede 2016-11-18 2:26 ` Jike Song 2016-11-17 23:29 ` Tian, Kevin 2016-11-17 23:29 ` [Qemu-devel] " Tian, Kevin 2016-11-17 23:51 ` Alex Williamson 2016-11-17 23:51 ` [Qemu-devel] " Alex Williamson 2016-11-17 23:51 ` Alex Williamson 2016-11-18 2:59 ` Dong Jia Shi 2016-11-18 2:59 ` [Qemu-devel] " Dong Jia Shi 2016-11-18 9:16 ` Zhenyu Wang 2016-11-18 9:16 ` [Qemu-devel] " Zhenyu Wang 2016-11-18 15:40 ` Alex Williamson 2016-11-18 15:40 ` [Qemu-devel] " Alex Williamson 2016-11-18 16:09 ` Daniel Vetter 2016-11-18 16:09 ` [Qemu-devel] " Daniel Vetter 2016-11-18 16:50 ` Alex Williamson 2016-11-18 16:50 ` [Qemu-devel] " Alex Williamson
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