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VFIO updates for v3.20-rc1

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- IOMMU updates based on trace analysis (Alex Williamson)
  - VFIO device request interface (Alex Williamson)
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Merge tag 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - IOMMU updates based on trace analysis
 - VFIO device request interface

* tag 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio:
  vfio-pci: Add device request interface
  vfio-pci: Generalize setup of simple eventfds
  vfio: Add and use device request op for vfio bus drivers
  vfio: Tie IOMMU group reference to vfio group
  vfio: Add device tracking during unbind
  vfio/type1: Add conditional rescheduling
  vfio/type1: Chunk contiguous reserved/invalid page mappings
  vfio/type1: DMA unmap chunking
This commit is contained in:
Linus Torvalds 2015-02-21 11:55:21 -08:00
commit c189cb8ef6
7 changed files with 242 additions and 42 deletions
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2
include/linux/vfio.h
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@ -26,6 +26,7 @@
* @ioctl: Perform ioctl(2) on device file descriptor, supporting VFIO_DEVICE_*
* operations documented below
* @mmap: Perform mmap(2) on a region of the device file descriptor
* @request: Request for the bus driver to release the device
*/
struct vfio_device_ops {
char *name;
@ -38,6 +39,7 @@ struct vfio_device_ops {
long (*ioctl)(void *device_data, unsigned int cmd,
unsigned long arg);
int (*mmap)(void *device_data, struct vm_area_struct *vma);
void (*request)(void *device_data, unsigned int count);
};
extern int vfio_add_group_dev(struct device *dev,