Pull VFIO updates from Alex Williamson: - Mask INTx from user if pdev->irq is zero (Alexey Kardashevskiy) - Capability helper cleanup (Alex Williamson) - Allow mmaps overlapping MSI-X vector table with region capability exposing this feature (Alexey Kardashevskiy) - mdev static cleanups (Xiongwei Song) * tag 'vfio-v4.16-rc1' of git://github.com/awilliam/linux-vfio: vfio: mdev: make a couple of functions and structure vfio_mdev_driver static vfio-pci: Allow mapping MSIX BAR vfio: Simplify capability helper vfio-pci: Mask INTx if a device is not capabable of enabling it
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| @@ -301,6 +301,16 @@ struct vfio_region_info_cap_type { · 300 unmodified lines | ||
| 301 | 301 | #define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2) |
| 302 | 302 | #define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3) |
| 303 | 303 | |
| 304 | +/* | |
| 305 | + * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped | |
| 306 | + * which allows direct access to non-MSIX registers which happened to be within | |
| 307 | + * the same system page. | |
| 308 | + * | |
| 309 | + * Even though the userspace gets direct access to the MSIX data, the existing | |
| 310 | + * VFIO_DEVICE_SET_IRQS interface must still be used for MSIX configuration. | |
| 311 | + */ | |
| 312 | +#define VFIO_REGION_INFO_CAP_MSIX_MAPPABLE 3 | |
| 313 | + | |
| 304 | 314 | /** |
| 305 | 315 | * VFIO_DEVICE_GET_IRQ_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 9, |
| 306 | 316 | * struct vfio_irq_info) |