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Re: [Qemu-ppc] [OpenBIOS] Apple's BootX
From: |
BALATON Zoltan |
Subject: |
Re: [Qemu-ppc] [OpenBIOS] Apple's BootX |
Date: |
Tue, 30 Jan 2018 15:10:58 +0100 (CET) |
User-agent: |
Alpine 2.21 (BSF 202 2017-01-01) |
On Mon, 29 Jan 2018, Jd Lyons via OpenBIOS wrote:
Ok, with a little help for Paul at the kvm-ppc mailing list, it seems
the issue maybe that the BootX or more likely mach_kernel it trying to
write something to or probe for an L3 cache.
With kvm could be but on TCG it doesn't seem that way. Enabling some SPR
debug options in target/ppc/translate_init.c I see this (with qemu git
HEAD without other patches):
$ ppc-softmmu/qemu-system-ppc -cpu G4 -d int
Write SPR 272 110 <= 07e00000
Read SPR 287 11f => 000c0209
Read SPR 25 019 => 07e00000
Read SPR 25 019 => 07e00000
Read SPR 287 11f => 000c0209
Raise exception at fff08978 => 00000003 (40000000)
Write SPR 273 111 <= 07df7ff0
Write SPR 274 112 <= 20000004
Read SPR 272 110 => 07e00000
Read SPR 273 111 => 07df7ff0
Read SPR 274 112 => 20000004
Read SPR 26 01a => fff08978
Read SPR 27 01b => 40000030
$ ppc-softmmu/qemu-system-ppc -cpu 7447a -d int
Write SPR 272 110 <= 07e00000
Read SPR 287 11f => 80030102
Read SPR 25 019 => 07e00000
Read SPR 25 019 => 07e00000
Read SPR 287 11f => 80030102
Raise exception at fff08978 => 0000004e (00)
So OpenBIOS gets unexpected exception very early right after reading the
PVR so maybe it's a problem in OpenBIOS before it gets to what you're
describing. Is this already fixed?
Regards,
BALATON Zoltan
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, (continued)
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, BALATON Zoltan, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, BALATON Zoltan, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, BALATON Zoltan, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/28
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, BALATON Zoltan, 2018/01/28
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/29
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/29
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX,
BALATON Zoltan <=
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/30
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/30
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/30
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, James Lyons, 2018/01/31
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Segher Boessenkool, 2018/01/30
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, James Lyons, 2018/01/31
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Programmingkid, 2018/01/27
- Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Jd Lyons, 2018/01/27
Re: [Qemu-ppc] [OpenBIOS] Apple's BootX, Mark Cave-Ayland, 2018/01/25
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