On 4/14/10, Artyom Tarasenko <atar4q...@googlemail.com> wrote:
> 2010/4/14 Artyom Tarasenko <atar4q...@googlemail.com>:
>
> > 2010/4/3 Blue Swirl <blauwir...@gmail.com>:
> >> 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'
> #### 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.
