Linus Torvalds 45cb5230f8 VFIO updates for v4.6-rc1 ... Various enablers for assignment of Intel graphics devices and future support of vGPU devices (Alex Williamson). This includes - Handling the vfio type1 interface as an API rather than a specific implementation, allowing multiple type1 providers. - Capability chains, similar to PCI device capabilities, that allow extending ioctls. Extensions here include device specific regions and sparse mmap descriptions. The former is used to expose non-PCI regions for IGD, including the OpRegion (particularly the Video BIOS Table), and read only PCI config access to the host and LPC bridge as drivers often depend on identifying those devices. Sparse mmaps here are used to describe the MSIx vector table, which vfio has always protected from mmap, but never had an API to explicitly define that protection. In future vGPU support this is expected to allow the description of PCI BARs that may mix direct access and emulated access within a single region. - The ability to expose the shadow ROM as an option ROM as IGD use cases may rely on the ROM even though the physical device does not make use of a PCI option ROM BAR. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iQIcBAABAgAGBQJW6aT1AAoJECObm247sIsiiP4P/1xf7Z08/2QWVFQzex9CLcZk +/iJlyb/fTpPVQE+NTKPz3Qh5h6ZhSd/57s85IUqq0T6tgVPkoGx8kkyCjBaw2y1 yMezXZlQqJdZqGzQNI4OiHWvO+/vGxYKjQMfUnMlDM6dJgz4lGncGFoSouFPa3Vp mB12hGxrlk1cfIdb+C1KbfZcEdS0WhtigQtz8flBKgOfO+hYWmUO+CClJBhVw8Z4 RNcWNAxFfLuwUPVsPb6uOLG2g65SC2vmQ9k0Tnknf1znV3PFFVjITf0aM6uChLNP S3SgqtPX+6yOFyCuSEs8UKhhmCbeQmAyKgt5BpxV3Rw3OMP4PsVAehr82vQmSj6g 2o96pR2s8MDPBr8eG7gdRe4DQe3PonpLkpDfaghcpYqhkGEqNVeW5/GjiOzGQqD3 xMshzxJ1Iz7DOHkQRUVqOfupDB0TusJmTVKwvXe6yIYL9pjkUS/sbN9U563HYSES JTV68TMj0VKfKwD3XKYXvGH3km1sL4i5NMlAUrsDtsMkGlXEswoGbj82Mjc8+jUo BvWQTJb+kouJQ88VhsO2abg1UrO9E6u82iHFHy9fEObxE8KH7pvROlS93ihMT1Wv WQNuUcltdpHMRVX0BDknaPs3YtC3/TGgm3RcU5SZPbv/ys1471ZmJxMlAAKcfITr SuvkMTYElF5b1pigv46c =/lJn -----END PGP SIGNATURE----- Merge tag 'vfio-v4.6-rc1' of git://github.com/awilliam/linux-vfio Pull VFIO updates from Alex Williamson: "Various enablers for assignment of Intel graphics devices and future support of vGPU devices (Alex Williamson). This includes - Handling the vfio type1 interface as an API rather than a specific implementation, allowing multiple type1 providers. - Capability chains, similar to PCI device capabilities, that allow extending ioctls. Extensions here include device specific regions and sparse mmap descriptions. The former is used to expose non-PCI regions for IGD, including the OpRegion (particularly the Video BIOS Table), and read only PCI config access to the host and LPC bridge as drivers often depend on identifying those devices. Sparse mmaps here are used to describe the MSIx vector table, which vfio has always protected from mmap, but never had an API to explicitly define that protection. In future vGPU support this is expected to allow the description of PCI BARs that may mix direct access and emulated access within a single region. - The ability to expose the shadow ROM as an option ROM as IGD use cases may rely on the ROM even though the physical device does not make use of a PCI option ROM BAR" * tag 'vfio-v4.6-rc1' of git://github.com/awilliam/linux-vfio: vfio/pci: return -EFAULT if copy_to_user fails vfio/pci: Expose shadow ROM as PCI option ROM vfio/pci: Intel IGD host and LCP bridge config space access vfio/pci: Intel IGD OpRegion support vfio/pci: Enable virtual register in PCI config space vfio/pci: Add infrastructure for additional device specific regions vfio: Define device specific region type capability vfio/pci: Include sparse mmap capability for MSI-X table regions vfio: Define sparse mmap capability for regions vfio: Add capability chain helpers vfio: Define capability chains vfio: If an IOMMU backend fails, keep looking vfio/pci: Fix unsigned comparison overflow		2016-03-17 13:05:09 -07:00
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Kconfig
Makefile
vfio_pci_config.c
vfio_pci_igd.c
vfio_pci_intrs.c
vfio_pci_private.h
vfio_pci_rdwr.c
vfio_pci.c