Hi, At Wed, 13 Jul 2011 19:34:10 +0300, Blue Swirl wrote: > On Wed, Jul 13, 2011 at 3:48 PM, <tsnsa...@gmail.com> wrote: > > At Wed, 13 Jul 2011 13:09:28 +0100, > > Mark Cave-Ayland wrote: > >> >> Nice series! > >> >> May I ask what have you used as a test case to discover the problem? > >> > > >> > I found the problem when I was trying to run the linux/sparc64 kernel. > >> > It seemed that copy_to_user() did not work as expected. > >> > >> That's good to hear. How far have you managed to get a 64-bit Linux > >> kernel to boot to date? > > > > With dirty hacks other than the ldfa/stfa fixes, I have managed > > to get the busybox shell prompt using a kernel with initramfs. > > I'm planning to send other fixes after cleaning them up. > > Great! In which areas are the hacks needed?
Roughly speaking I've added/changed the following so far: - %fprs register dirty bits support - hardware interrupt handing (both interrupt controller and cpu side) also needed to modify the openbios. - nonfaulting load ASI glibc memcpy seems to use nonfaulting loads ---- Tsuneo Saito <tsnsa...@gmail.com>
