Re: [OpenBIOS] Solaris anyone? Solaris 9 04/04
by Nathan Kunkee
On 09/10/11 01:45 AM, Blue Swirl wrote:
>
>> I don't know enough about SPARC32 architecture to know if that gives more
>> useful information... I don't see the 0x4c value in my log file. I tried
>> turning on DEBUG_MMU, but stopped when my log file hit 4GB and I hadn't hit
>> the stopping point yet.
>>
>> Any ideas for other things to try or set for more debugging?
> Since this is repeatable, you could try something like this (untested):
> diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
> index d1a8dd9..2594bbd 100644
> --- a/target-sparc/op_helper.c
> +++ b/target-sparc/op_helper.c
> @@ -1836,6 +1836,11 @@ uint64_t helper_ld_asi(target_ulong addr, int
> asi, int size, int sign)
> ret = mmu_probe(env, addr, mmulev);
> DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
> addr, mmulev, ret);
> + if (addr == 0xf5901400) {
> + printf("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
> + addr, mmulev, ret);
> + dump_mmu(stdout, fprintf, env);
> + }
> }
> break;
> case 4: /* read MMU regs */
Tweaking that a little, I now find myself at pc=0xf01850c8, because that
is the current instruction when the page tables write out.
(qemu) info cpus
* CPU #0: pc=0xf01850c8 npc=0xf01850cc thread_id=3483
(qemu) info registers
pc: f01850c8 npc: f01850cc
General Registers:
%g0-7: 00000000 f024dc00 00000003 f5a6b104 00000004 fbf45b80 f0041000
f5dd0500
Current Register Window:
%o0-7: 00000000 f026a2d8 f5901000 f5901200 f026a2dc f018505c f026a270
f005c5a4
%l0-7: 04001fc5 f00436ac 000003a6 00000020 00000000 00000009 00000000
00000001
%i0-7: f026a6c0 f026a40c f5901000 000003a6 00000002 f026a384 f026a2e8
f005cefc
Floating Point Registers:
%f00: 000000000.000000 000000000.000000 -NaN -NaN
%f04: -NaN -NaN -NaN -NaN
....
%f28: -NaN -NaN -NaN -NaN
psr: 04401fe5 (icc: -Z-- SPE: SPE) wim: 00000002
fsr: 00080000 y: 00000000
(qemu) x /30i 0xf01850a0
0xf01850a0: and %o0, 3, %o3
0xf01850a4: cmp %o3, 2
0xf01850a8: bne 0xf01850c0
0xf01850ac: srl %o2, 0xc, %o3
0xf01850b0: and %o3, 0x3f, %o3
0xf01850b4: sll %o3, 8, %o3
0xf01850b8: b 0xf01850c8
0xf01850bc: add %o0, %o3, %o0
0xf01850c0: mov %o2, %o3
0xf01850c4: lda [ %o3 ] #ASI_M_FLUSH_PROBE, %o0
0xf01850c8: srl %o0, 0x18, %o3
0xf01850cc: andcc %o3, 7, %o3
0xf01850d0: be 0xf01850dc
0xf01850d4: nop
0xf01850d8: sta %g0, [ %o2 ] #ASI_M_FLUSH_PROBE
0xf01850dc: mov 0x300, %o2
0xf01850e0: cmp %o1, 0
0xf01850e4: be 0xf01850f0
0xf01850e8: lda [ %o2 ] #ASI_M_MMUREGS, %o2
0xf01850ec: st %o2, [ %o1 ]
0xf01850f0: retl
0xf01850f4: nop
0xf01850f8: sethi %hi(0x10003000), %o2
0xf01850fc: or %o2, 0x18, %o2 ! 0x10003018
0xf0185100: retl
0xf0185104: lda [ %o2 ] #ASI_M_BYPASS, %o0
0xf0185108: unimp 0
0xf018510c: unimp 0
0xf0185110: unimp 0
0xf0185114: unimp 0
Now I know reading fragments of assembly are lots of fun, so I've
attached the dump_mmu results, which will hopefully also be useful.
Does that help point to a next step?
Thanks!
Nathan
7 years, 4 months
- 2
- 1
Re: [OpenBIOS] Solaris anyone?
by Nick Couchman
> Hi Nick,
>
> Thanks again for testing this. The issue with Solaris not detecting the
> disks is a known one - the following guide should point you in the right
> direction:
>
> http://virtuallyfun.blogspot.com/2010/10/formatting-disks-for-solaris.html
>
> Also don't forget the "set scsi_options" part from Artyom's SPARC/QEMU
> howto here: http://tyom.blogspot.com/2009/12/solaris-under-qemu-how-to.html
>
> I think it may actually be possible to come up with a patch for OpenBIOS
> so that the scsi_options change isn't required - let me know how you get
> on with the above links, and if it all seems to work I'll look at
> creating the patch for you.
>
>
Okay, I got passed the issue with formatting the root filesystem.
Apparently there are some limitations on the C/H/S parameters you use
for the disk that correspond with how UFS wants to format a new
filesystem. I'm not sure what exactly those limitations are at this
point, but, by adjusting a couple of the C/H/S settings when using
format to set up the disk I was able to get it to work correctly. So, I
now have Solaris 9 installed on qemu-system-sparc with OpenBIOS! I'll
probably go back to Solaris 8 as that one has a free binary license
while Solaris 9 is a commercial license, IIRC. I do own a Solaris 9
commercial license, but I like the free idea, better.
Anyway, now I'm on to an issue with networking - I've used the following
two qemu network parameter combinations:
-net nic -net tap,ifname=tap0
-net nic -net user
In the first instance, tap0 was configured on my Linux box and added to
my bridge br0. In both cases the Solaris system is unable to obtain a
DHCP address - the DHCP client times out. Not sure if I should be using
a different parameter set, or if this is another area that needs some
work either for OpenBIOS or qemu?
-Nick
--------
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7 years, 4 months
- 8
- 34
Re: [OpenBIOS] [PATCH 10/10] Adding filll Forth primitive (v2)
by Stefan Reinauer
On 8/21/11 8:14 PM, William Hahne wrote:
> This is a forth word that is required by BootX. It just fills some
> specified memory address and length with 32 bit integers. It is a
> non-standard addition and therefore isn't documented. Thanks to Segher
> Boessenkool for the corrected for loop.
This should be written in Forth and not added as a primitive.
7 years, 4 months
- 1
- 0
Re: [OpenBIOS] Openbios rely on other lower-level firmware
by Blue Swirl
On Fri, Sep 9, 2011 at 1:51 AM, Jianmin Pan <dspjm1(a)gmail.com> wrote:
> I want to study the openbios project, while there is a question, I read
> that, open bios rely on other firmware, such as coreboot, in my knowledge,
> coreboot is a bios system itself, isn't there a conflict?
Coreboot is not used on Sparc and PPC, only on x86 this is possible.
Hardware init could be moved to coreboot also on Sparc/PPC but nobody
has bothered yet. This could be a nice, well-defined project and the
person doing it would gain insight to design of both projects.
7 years, 4 months
- 1
- 0
Re: [OpenBIOS] Openbios rely on other lower-level firmware
by Mark Cave-Ayland
On 09/09/11 02:51, Jianmin Pan wrote:
> I want to study the openbios project, while there is a question, I read
> that, open bios rely on other firmware, such as coreboot, in my
> knowledge, coreboot is a bios system itself, isn't there a conflict?
Welcome to the OpenBIOS project :) Probably the best way to think about
it is that coreboot performs the low level hardware initialisation for
various chipsets and then executes a (generally ELF) payload in order to
handle the boot process.
In the past I've managed to successfully build CoreBoot with an OpenBIOS
payload for testing under x86 on QEMU which I think is a good way to
help get yourself familiar with the process. BTW as a matter of
interest, do you have any interesting projects in mind for OpenBIOS?
ATB,
Mark.
--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063
Sirius Labs: http://www.siriusit.co.uk/labs
7 years, 4 months
- 1
- 0
Openbios rely on other lower-level firmware
by Jianmin Pan
I want to study the openbios project, while there is a question, I read
that, open bios rely on other firmware, such as coreboot, in my knowledge,
coreboot is a bios system itself, isn't there a conflict?
7 years, 4 months
- 1
- 0
Re: [OpenBIOS] [PATCH] Support any build directory
by Andreas Färber
Am 28.08.2011 um 17:28 schrieb Blue Swirl:
> Detect source path from switch-arch call path. Always use absolute
> paths. Fix bootstrap.c so that for absolute paths, in addition to
> include directives (-I), the bare path is checked.
>
> Signed-off-by: Blue Swirl <blauwirbel(a)gmail.com>
> ---
> The motivation is to integrate OpenBIOS to QEMU build system.
Are we going to switch to Git at that opportunity?
Andreas
7 years, 4 months
- 2
- 1
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