On 7/23/24 14:49, Sergio Lopez wrote: > There's an incresing number of machines supporting multiple page sizes > and on these machines the host and a guest can be running, each one, > with a different page size. > > For what pertains to virtio-gpu, this is not a problem if the page size > of the guest happens to be bigger or equal than the host, but will > potentially lead to failures in memory allocations and/or mappings > otherwise. Please describe concrete problem you're trying to solve. Guest memory allocation consists of guest pages, I don't see how knowledge of host page size helps anything in userspace. I suspect you want this for host blobs, but then it should be virtio_gpu_vram_create() that should use max(host_page_sz, guest_page_size), AFAICT. It's kernel who is responsible for memory management, userspace can't be trusted for doing that. -- Best regards, Dmitry
