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| author | Peter Maydell <peter.maydell@linaro.org> | 2018-05-25 14:27:54 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-06-01 15:14:31 +0200 |
| commit | 65a6d8dd3f322e91efa320f2811bec83dde36b6b (patch) | |
| tree | 0ce07583f33c185f008bd5afeb3c3083c066259c /linux-headers/linux/vfio.h | |
| parent | 2af1acadc22e86b9fff7b2cd73ea9c779ba1a065 (diff) | |
| download | qemu-65a6d8dd3f322e91efa320f2811bec83dde36b6b.zip qemu-65a6d8dd3f322e91efa320f2811bec83dde36b6b.tar.gz qemu-65a6d8dd3f322e91efa320f2811bec83dde36b6b.tar.bz2 | |
Update Linux headers to 4.17-rc6
Update our copy of the Linux headers to upstream 4.17-rc6
(kernel commit 771c577c23bac90597c68).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180525132755.21839-6-peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'linux-headers/linux/vfio.h')
| -rw-r--r-- | linux-headers/linux/vfio.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index 3a0a305..3615a26 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -575,6 +575,33 @@ struct vfio_device_gfx_plane_info { #define VFIO_DEVICE_GET_GFX_DMABUF _IO(VFIO_TYPE, VFIO_BASE + 15) +/** + * VFIO_DEVICE_IOEVENTFD - _IOW(VFIO_TYPE, VFIO_BASE + 16, + * struct vfio_device_ioeventfd) + * + * Perform a write to the device at the specified device fd offset, with + * the specified data and width when the provided eventfd is triggered. + * vfio bus drivers may not support this for all regions, for all widths, + * or at all. vfio-pci currently only enables support for BAR regions, + * excluding the MSI-X vector table. + * + * Return: 0 on success, -errno on failure. + */ +struct vfio_device_ioeventfd { + __u32 argsz; + __u32 flags; +#define VFIO_DEVICE_IOEVENTFD_8 (1 << 0) /* 1-byte write */ +#define VFIO_DEVICE_IOEVENTFD_16 (1 << 1) /* 2-byte write */ +#define VFIO_DEVICE_IOEVENTFD_32 (1 << 2) /* 4-byte write */ +#define VFIO_DEVICE_IOEVENTFD_64 (1 << 3) /* 8-byte write */ +#define VFIO_DEVICE_IOEVENTFD_SIZE_MASK (0xf) + __u64 offset; /* device fd offset of write */ + __u64 data; /* data to be written */ + __s32 fd; /* -1 for de-assignment */ +}; + +#define VFIO_DEVICE_IOEVENTFD _IO(VFIO_TYPE, VFIO_BASE + 16) + /* -------- API for Type1 VFIO IOMMU -------- */ /** |