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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 23:05:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 23:05:09 +0300
commit45cb5230f862d10209b83e488b20916555d70c55 (patch)
tree3501acce3ea2d96a3d84f8310001d2e81e581fb9 /tools
parent3c0b8d1c5f334d1fd0c7eafc18bfb4ab0087b165 (diff)
parentc4aec3101319f84363a57e09086c2aff6c60a3c3 (diff)
downloadlinux-45cb5230f862d10209b83e488b20916555d70c55.tar.xz
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
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