On (Tue) 30 Aug 2016 [08:04:15], Andy Lutomirski wrote:
> virtio_console uses a small DMA buffer for control requests. Move
> that buffer into heap memory.
>
> Doing virtio DMA on the stack is normally okay on non-DMA-API virtio
> systems (which is currently most of them), but it breaks completely
> if the stack is virtually mapped.
>
> Tested by typing both directions using picocom aimed at /dev/hvc0.
>
> Signed-off-by: Andy Lutomirski <l...@kernel.org>
Looks fine,
Reviewed-by: Amit Shah <amit.s...@redhat.com>
> ---
>
> Hi all-
>
> This is currently broken in tip:x86/asm. If you (Amit) like this patch,
> would it make sense for Ingo to add it to -tip?
Yes, I'm fine with that.
Amit
