diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch')
-rw-r--r-- | target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch b/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch deleted file mode 100644 index 7ec0305050..0000000000 --- a/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch +++ /dev/null @@ -1,48 +0,0 @@ -From a548dc00536e2cc6e7e7f95487f5261b3133a0d7 Mon Sep 17 00:00:00 2001 -From: Diana Craciun <diana.craciun@nxp.com> -Date: Wed, 18 Sep 2019 18:26:14 +0300 -Subject: [PATCH] vfio/fsl-mc: Implement VFIO_DEVICE_GET_INFO ioctl - -Allow userspace to get fsl-mc device info (number of regions -and irqs). - -Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com> -Signed-off-by: Diana Craciun <diana.craciun@nxp.com> ---- - drivers/vfio/fsl-mc/vfio_fsl_mc.c | 22 +++++++++++++++++++++- - 1 file changed, 21 insertions(+), 1 deletion(-) - ---- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c -+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c -@@ -32,10 +32,30 @@ static void vfio_fsl_mc_release(void *de - static long vfio_fsl_mc_ioctl(void *device_data, unsigned int cmd, - unsigned long arg) - { -+ unsigned long minsz; -+ struct vfio_fsl_mc_device *vdev = device_data; -+ struct fsl_mc_device *mc_dev = vdev->mc_dev; -+ - switch (cmd) { - case VFIO_DEVICE_GET_INFO: - { -- return -EINVAL; -+ struct vfio_device_info info; -+ -+ minsz = offsetofend(struct vfio_device_info, num_irqs); -+ -+ if (copy_from_user(&info, (void __user *)arg, minsz)) -+ return -EFAULT; -+ -+ if (info.argsz < minsz) -+ return -EINVAL; -+ -+ info.flags = VFIO_DEVICE_FLAGS_FSL_MC; -+ info.num_regions = mc_dev->obj_desc.region_count; -+ info.num_irqs = mc_dev->obj_desc.irq_count; -+ -+ return copy_to_user((void __user *)arg, &info, minsz) ? -+ -EFAULT : 0; -+ - } - case VFIO_DEVICE_GET_REGION_INFO: - { |