On Sat, Nov 30, 2024 at 09:41:40AM +0100, Lukas Wunner wrote: > > Just a heads-up, this won't work for use cases when the src buffer > isn't accessible by the kernel. E.g. if the virtual address pointed to > by src is in TEE restricted memory which was mapped into virtual address > space by dma_buf_vmap(): > > https://lore.kernel.org/all/20241128150927.1377981-1-jens.wiklander@xxxxxxxxxx/ If it's not accessible by the kernel, why would you map into the kernel page table? That just makes no sense. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
