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[Qemu-devel] Re: OBP under qemu-system-sparc64
From: |
Blue Swirl |
Subject: |
[Qemu-devel] Re: OBP under qemu-system-sparc64 |
Date: |
Wed, 14 Apr 2010 22:44:01 +0300 |
On 4/14/10, Artyom Tarasenko <address@hidden> wrote:
> 2010/4/14 Blue Swirl <address@hidden>:
>
> > On 4/14/10, Artyom Tarasenko <address@hidden> wrote:
> >> 2010/4/14 Artyom Tarasenko <address@hidden>:
> >>
> >> > 2010/4/3 Blue Swirl <address@hidden>:
> >> >> could be interesting to see what OBP
> >> >> from a real machine would think of the QEMU machine.
> >> >
> >> > it doesn't live long enough to think something (must be something
> trivial):
> >> >
> >> > $ sparc64-softmmu/qemu-system-sparc64 -bios u1_v3.11.1.bin -nographic
> >> > -cpu 'TI UltraSparc I' -d in_asm,int,cpu
> >> > --------------
> >> > IN:
> >> > 0x000001fff0000020: ldxa [ %g0 ] (69), %g2
> >> > 0x000001fff0000024: stxa %g0, [ %g0 ] (69)
> >> > 0x000001fff0000028: b,a 0x1fff0001d88
> >> >
> >> > --------------
> >> > IN:
> >> > 0x000001fff0001d88: rdpr %cwp, %g1
> >> > 0x000001fff0001d8c: wrpr 0, %cwp
> >> > 0x000001fff0001d90: wrpr %g1, 0, %cwp
> >> > 0x000001fff0001d94: call 0x1fff0000210
> >> > 0x000001fff0001d98: add %g0, %g0, %o0
> >> >
> >> > --------------
> >> > IN:
> >> > 0x000001fff0000210: mov 0x1ff, %o1 ! 0x1ff
> >> > 0x000001fff0000214: sllx %o1, 0x20, %o1
> >> > 0x000001fff0000218: sethi %hi(0xf1300000), %o2
> >> > 0x000001fff000021c: or %o2, %o1, %o2
> >> > 0x000001fff0000220: stba %o0, [ %o2 ] (21)
> >>
> >>
> >> and on the real machine there seems to be some device connected to this
> address:
> >> ok 1fff1300000 bypass-asi spacel@ .
> >> Data Access Error
> >> ok cpu-afsr@ .
> >> 104000000
> >> ok 1fff1300000 bypass-asi spacel@ .
> >> Data Access Error
> >> ok cpu-afar@ . cpu-afsr@ .
> >> 1fff1300000 104000000
> >> But, with single bytes it works:
> >> ok 1fff1300000 bypass-asi spacec@ .
> >> 64
> >> ok 1fff1300001 bypass-asi spacec@ .
> >> 64
> >> ok 1fff1300002 bypass-asi spacec@ .
> >> 64
> >> ok 1fff1300003 bypass-asi spacec@ .
> >> 64
> >>
> >> If I put pseudodevices there it still doesn't get too far:
> >> #### skip unassigned mem access to 000001fff1300000
> >> #### skip unassigned mem access to 000001fff1300004
> >> #### skip unassigned mem access to 000001fff1300005
> >> #### skip unassigned mem access to 000001fff1300006
> >> #### skip unassigned mem access to 000001fff1300007
> >
> > It's this device:
> > model: 'SUNW,sc-up'
> > reg: 0000000f.01300000.00000008
> > name: 'sc'
>
>
> thought about it, but it says xx08, and OBP tries xx00+
No, the third value is length. The second value is an offset to the
parent range. The first value is a selector from parent device
'ranges' property which in this case has these values (slightly
formatted):
00000000.00000000.000001ff.00000000.10000000.
00000001.00000000.000001ff.10000000.10000000.
00000002.00000000.000001ff.20000000.10000000.
00000003.00000000.000001ff.30000000.10000000.
0000000d.00000000.000001ff.d0000000.10000000.
0000000e.00000000.000001ff.e0000000.10000000.
0000000f.00000000.000001ff.f0000000.10000000
The last one (0xf) gives a range of 0x1fff0000000 to 0x1fffffffffff.
> >> #### skip unassigned mem access to 000001fff1900000
> >
> > address: fffb6000
> > reg: 0000000f.01900000.00000001
> > name: 'auxio'
> >
> >> #### skip unassigned mem access to 000001fff1100004
> >
> > device_type: 'serial'
> > reg: 0000000f.01100000.00000004
> > name: 'zs'
> >
> >> #### skip unassigned mem access to 000001fff1100004
> >> #### skip unassigned mem access to 000001fff1100000
> >> #### skip unassigned mem access to 000001fff1300007
> >> #### skip unassigned mem access to 000001fff1200001
> >
> > reg: 0000000f.01200000.00002000
> > model: 'mk48t59'
> > name: 'eeprom'
> >
> > Zilog serial (escc) and m48t59 are already implemented.
>
>
> Yes, but I thought they are also already wired.
> I'll create one more hwdef entry then.
>
> On the other hand I see
> .console_serial_base = 0
> . Do we want to keep this setting? How does it work under OpenBIOS?
It's for the Niagara machine, which uses a PC-style serial port.
OpenBIOS does not support that machine type (yet?).
- [Qemu-devel] OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/14
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/14
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Blue Swirl, 2010/04/14
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/14
- [Qemu-devel] Re: OBP under qemu-system-sparc64,
Blue Swirl <=
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/14
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/21
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Artyom Tarasenko, 2010/04/28
- [Qemu-devel] Re: OBP under qemu-system-sparc64, Blue Swirl, 2010/04/28