Hi Elliott, On Fri, 12 Nov 2021 at 21:15, Elliott Mitchell <ehem+...@m5p.com> wrote: > > > I had been left with the impression the DSDT parsing was going to be > > > needed for Domain 0 to access the framebuffer. This was found > > > unnecessary for framebuffer access for Domain 0? > > > > I thought you were asking for using framebuffer in Xen. There is no need > > for Xen to parse the DSDT if the framebuffer is solely used by Dom0. > > > > Your problem with the framebuffer is likely not related to the DSDT. But > > I can't really provide a lot of input until I see the logs. > > https://lists.xenproject.org/archives/html/xen-devel/2020-10/msg01841.html > > That is more or less a statement of handling of DSDT is the Right(tm) > solution for Domain 0 to have framebuffer on such a platform.
Reading through the thread, I agree this is the correct theoretical thing to do. However, as already pointed out back then, the effort seems quite big for the benefit of a single board (AFAIK none of the other SoC we support requires this). My preference is to introduce a per-platform quirk (I believe Stefano was happy with this). The advantage is we could get ACPI support for your board hopefully merged quicker. I would be happy to review any patches you send. Cheers,
