Re: [PATCH v1] drm/xe: Force EXEC_QUEUE_FLAG_KERNEL for kernel internal VMs

[Matthew Brost <matthew.brost@intel.com>]

On Wed, Feb 11, 2026 at 06:14:41PM +0100, Piórkowski, Piotr wrote:
> From: Piotr Piórkowski <piotr.piorkowski@intel.com>
> 
> VMs created without an associated xe_file originate from kernel
> contexts and should use kernel exec queues. Ensure such VMs
> create bind exec queues with EXEC_QUEUE_FLAG_KERNEL set.
> Let's ensure bind exec queues created for kernel VMs are always
> marked with EXEC_QUEUE_FLAG_KERNEL.
> 
> Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
> ---
>  drivers/gpu/drm/xe/xe_vm.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
> index 8fe54a998385..708e8c7becf8 100644
> --- a/drivers/gpu/drm/xe/xe_vm.c
> +++ b/drivers/gpu/drm/xe/xe_vm.c
> @@ -1657,6 +1657,9 @@ struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags, struct xe_file *xef)
>  			if (!vm->pt_root[id])
>  				continue;
>  
> +			if (!xef) /* Not from userspace */
> +				create_flags |= EXEC_QUEUE_FLAG_KERNEL;

This LGTM, but for completness we should probably remove setting
EXEC_QUEUE_FLAG_KERNEL at all callers too.

Matt

> +
>  			q = xe_exec_queue_create_bind(xe, tile, vm, create_flags, 0);
>  			if (IS_ERR(q)) {
>  				err = PTR_ERR(q);
> -- 
> 2.34.1
>