On 30/06/2023 19:05, Richard Henderson wrote:
On 6/22/23 16:36, Mark Cave-Ayland wrote:
On 20/06/2023 17:40, Richard Henderson wrote:
With the addition of TCG_GUEST_DEFAULT_MO, there's nothing in
the cpu emulation preventing this from working. There is some
board model work to be done for sparc64, where max_cpus = 1.
I've tried testing this with the Advent Calendar image at
https://qemu-advent-calendar.org/2018/download/day11.tar.xz and even without these
patches applied I'm seeing hangs with -smp 2. When applied on top of the other
"target/sparc: Use tcg_gen_lookup_and_goto_ptr" series I get assert() after a
minute or two:
Would you try again, now that we've solved the issues with lookup_and_goto_ptr?
The wording above is a bit clumsy on my part, but I was still seeing the hangs on git
master with -smp 2, but with the older tcg_gen_lookup_and_goto_ptr series not only
would I see the hangs but I would hit the assert() within a couple of minutes.
My notes on the wiki at https://wiki.qemu.org/Documentation/Platforms/SPARC#Timeline
suggest that it was working on QEMU 6.2, so I'll need to find a moment to bisect it
down to see where things broke.
ATB,
Mark.
