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drm/amdkfd: Check cgroup when returning DMABuf info

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BugLink: https://bugs.launchpad.net/bugs/2070349

[ Upstream commit 9d7993a7ab9651afd5fb295a4992e511b2b727aa ]

Check cgroup permissions when returning DMA-buf info and
based on cgroup info return the GPU id of the GPU that have
access to the BO.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Mukul Joshi
2024-02-12 10:40:55 -05:00
committed by Stefan Bader
parent 142b4e0db0
commit 0830150481
1 changed files with 2 additions and 2 deletions
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drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+2 -2
View File
@@ -1522,7 +1522,7 @@ static int kfd_ioctl_get_dmabuf_info(struct file *filep,
/* Find a KFD GPU device that supports the get_dmabuf_info query */
for (i = 0; kfd_topology_enum_kfd_devices(i, &dev) == 0; i++)
if (dev)
if (dev && !kfd_devcgroup_check_permission(dev))
break;
if (!dev)
return -EINVAL;
@@ -1544,7 +1544,7 @@ static int kfd_ioctl_get_dmabuf_info(struct file *filep,
if (xcp_id >= 0)
args->gpu_id = dmabuf_adev->kfd.dev->nodes[xcp_id]->id;
else
args->gpu_id = dmabuf_adev->kfd.dev->nodes[0]->id;
args->gpu_id = dev->id;
args->flags = flags;
/* Copy metadata buffer to user mode */