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vfio: Move the remaining drivers to get_region_info_caps

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Remove the duplicate code and change info to a pointer. caps are not used.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/21-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
This commit is contained in:
Jason Gunthorpe
2025-11-07 13:41:37 -04:00
committed by Alex Williamson
parent 182c62861b
commit dc10734610
4 changed files with 29 additions and 101 deletions
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39
samples/vfio-mdev/mdpy.c
View File

@@ -435,10 +435,13 @@ static int mdpy_mmap(struct vfio_device *vdev, struct vm_area_struct *vma)
return remap_vmalloc_range(vma, mdev_state->memblk, 0);
}
static int mdpy_get_region_info(struct mdev_state *mdev_state,
struct vfio_region_info *region_info,
u16 *cap_type_id, void **cap_type)
static int mdpy_ioctl_get_region_info(struct vfio_device *vdev,
struct vfio_region_info *region_info,
struct vfio_info_cap *caps)
{
struct mdev_state *mdev_state =
container_of(vdev, struct mdev_state, vdev);
if (region_info->index >= VFIO_PCI_NUM_REGIONS &&
region_info->index != MDPY_DISPLAY_REGION)
return -EINVAL;
@@ -512,34 +515,6 @@ static int mdpy_query_gfx_plane(struct mdev_state *mdev_state,
return 0;
}
static int mdpy_ioctl_get_region_info(struct vfio_device *vdev,
struct vfio_region_info __user *arg)
{
struct mdev_state *mdev_state =
container_of(vdev, struct mdev_state, vdev);
struct vfio_region_info info;
void *cap_type = NULL;
u16 cap_type_id = 0;
unsigned long minsz;
int ret;
minsz = offsetofend(struct vfio_region_info, offset);
if (copy_from_user(&info, arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
ret = mdpy_get_region_info(mdev_state, &info, &cap_type_id, &cap_type);
if (ret)
return ret;
if (copy_to_user(arg, &info, minsz))
return -EFAULT;
return 0;
}
static long mdpy_ioctl(struct vfio_device *vdev, unsigned int cmd,
unsigned long arg)
{
@@ -669,7 +644,7 @@ static const struct vfio_device_ops mdpy_dev_ops = {
.read = mdpy_read,
.write = mdpy_write,
.ioctl = mdpy_ioctl,
.get_region_info = mdpy_ioctl_get_region_info,
.get_region_info_caps = mdpy_ioctl_get_region_info,
.mmap = mdpy_mmap,
.bind_iommufd = vfio_iommufd_emulated_bind,
.unbind_iommufd = vfio_iommufd_emulated_unbind,

38
samples/vfio-mdev/mtty.c
View File

@@ -1717,10 +1717,12 @@ static int mtty_set_irqs(struct mdev_state *mdev_state, uint32_t flags,
return ret;
}
static int mtty_get_region_info(struct mdev_state *mdev_state,
struct vfio_region_info *region_info,
u16 *cap_type_id, void **cap_type)
static int mtty_ioctl_get_region_info(struct vfio_device *vdev,
struct vfio_region_info *region_info,
struct vfio_info_cap *caps)
{
struct mdev_state *mdev_state =
container_of(vdev, struct mdev_state, vdev);
unsigned int size = 0;
u32 bar_index;
@@ -1785,34 +1787,6 @@ static int mtty_get_device_info(struct vfio_device_info *dev_info)
return 0;
}
static int mtty_ioctl_get_region_info(struct vfio_device *vdev,
struct vfio_region_info __user *arg)
{
struct mdev_state *mdev_state =
container_of(vdev, struct mdev_state, vdev);
struct vfio_region_info info;
void *cap_type = NULL;
u16 cap_type_id = 0;
unsigned long minsz;
int ret;
minsz = offsetofend(struct vfio_region_info, offset);
if (copy_from_user(&info, arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
ret = mtty_get_region_info(mdev_state, &info, &cap_type_id, &cap_type);
if (ret)
return ret;
if (copy_to_user(arg, &info, minsz))
return -EFAULT;
return 0;
}
static long mtty_ioctl(struct vfio_device *vdev, unsigned int cmd,
unsigned long arg)
{
@@ -1953,7 +1927,7 @@ static const struct vfio_device_ops mtty_dev_ops = {
.read = mtty_read,
.write = mtty_write,
.ioctl = mtty_ioctl,
.get_region_info = mtty_ioctl_get_region_info,
.get_region_info_caps = mtty_ioctl_get_region_info,
.bind_iommufd = vfio_iommufd_emulated_bind,
.unbind_iommufd = vfio_iommufd_emulated_unbind,
.attach_ioas = vfio_iommufd_emulated_attach_ioas,