On 10.02.2017 18:43, Artyom Tarasenko wrote: > On Fri, Feb 10, 2017 at 6:29 PM, Thomas Huth <th...@redhat.com> wrote: >> On 10.02.2017 14:49, Thomas Huth wrote: >>> Hi, >>> >>> is it just me, or could it be that the sun4v machine is currently broken? >>> I get the following error when I try to run QEMU with this machine: >>> >>> qemu-system-sparc64 -nographic -M sun4v >>> qemu: fatal: Trap 0x0010 while trap level (6) >= MAXTL (6), Error state [...] >>> It works for when I use an older version of QEMU (version 2.7)... >> >> FWIW, it's also still working when I use QEMU 2.8, so this must be a >> recent regression... > > Oh. This is surprising. Sun4v practically wasn't implemented before my > niagara series. > So, OpenBIOS worked because -M sun4v was like -M sun4u with some sun4v > instructions. > Now sun4v is closer to a real sun4v - it has sun4v MMU, so OpenBIOS is > not compatible with it anymore. > The proper fix would be adding sun4v support to OpenBIOS, but it may > take some time.
Ah, ok, thanks for the explanation! I was considering to finally enable the prom-env-test for sparc64 (since the 32-bit TCG problem was solved at one point in time, IIRC) when I ran into this problem. So I guess I should only enable it for the sun4u machine initially... Thomas
