On 5/28/26 12:16 AM, Nathan Chen wrote:
> From: Nathan Chen <[email protected]>
>
> Add a statement to clarify that the host SMMUv3 must support HW-accelerated
> vfio-pci device assignment when setting accel=on.
>
> Suggested-by: Eric Auger <[email protected]>
Hum did I suggest that ;-)
> Signed-off-by: Nathan Chen <[email protected]>
> ---
> hw/arm/smmuv3.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
> index 0c65dc8c91..a8c49a48ac 100644
> --- a/hw/arm/smmuv3.c
> +++ b/hw/arm/smmuv3.c
> @@ -2165,7 +2165,9 @@ static void smmuv3_class_init(ObjectClass *klass, const
> void *data)
>
> object_class_property_set_description(klass, "accel",
> "Enable SMMUv3 accelerator support. Allows host SMMUv3 to be "
> - "configured in nested mode for vfio-pci dev assignment");
> + "configured in nested mode for vfio-pci dev assignment. Please "
> + "ensure the host SMMUv3 supports hardware-accelerated VFIO-PCI "
> + "device assignment before enabling.");
this is a rather abstract statement. What is the actual host
requirement, dual translation stage support?
Thanks
Eric
> object_class_property_set_description(klass, "ril",
> "Disable range invalidation support (for accel=on). ril=auto "
> "is not supported.");
