Re: [RFC PATCH v2 03/20] hw/arm/smmuv3-accel: Add initial infrastructure for smmuv3-accel device

[Eric Auger]

On 3/19/25 6:34 PM, Jason Gunthorpe wrote:
> On Wed, Mar 19, 2025 at 06:26:48PM +0100, Eric Auger wrote:
>> Effectively with ASID invalidation you potentially need to do both qemu
>> IOTLB invalidation and host invalidation propagation.
>> but this code is already in place in the code and used in vhost mode:
> Let's not forget the focus here, the point of the accel mode is to
> run fast, especially fast invalidation.
>
> Doing a bunch of extra stuff on hot paths just to support mixing
> virtual devices with physical doesn't seem like a great direction..
fair enough. Then let's disable the internal caches if we are in accel mode.

Eric
>
> Jason
>