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Re: [Qemu-ppc] [Qemu-devel] CUDA has problems with Mac OS 10.4


From: Programmingkid
Subject: Re: [Qemu-ppc] [Qemu-devel] CUDA has problems with Mac OS 10.4
Date: Wed, 11 Nov 2015 13:55:25 -0500

On Nov 11, 2015, at 12:54 PM, Mark Cave-Ayland wrote:

> On 11/11/15 15:15, Programmingkid wrote:
> 
>> I built Cormac O'Brien's QEMU repo for Mac OS 9 and tried to boot my Mac OS 
>> 10.4 boot cd. Mac OS 10.4's kernel panics because of a CUDA problem. I did 
>> use the mac99 target. Here is the error message: 
>> 
>> panic(cpu 0 caller 0x16E786CC): CUDA - TODO CHECK FOR TRANSACTION TYPE AND 
>> ERROR
>> 
>> This is the command I used: ./ppc-softmmu/qemu-system-ppc -boot d -cdrom 
>> ~/tiger.iso  -prom-env boot-args=-v -usb -M mac99
>> 
>> I think there is still something wrong with CUDA. But we might not have to 
>> "fix" it. When we use the mac99 target, the PowerMac3,1 Macintosh system is 
>> what we are trying to emulate. My sources indicate that the PowerMac3,1 
>> doesn't have a CUDA chip. This chip is used for ADB communications. Using it 
>> only on the BeigeG3 target makes sense. 
>> 
>> My sources for the PowerMac3,1 system is this link: 
>> http://www.everymac.com/systems/apple/powermac_g4/specs/powermac_g4_350_agp.html
>> 
>> and this device tree:
>> 
>> PowerMac G4 device tree
>> 
>> ff839ab8: /cpus
>> ff839ce8:   /PowerPC,address@hidden
>> ff83a060:     /l2-cache
>> ff83ab58: /chosen
>> ff83ace8: /address@hidden
>> ff83af00: /openprom
>> ff83b008:   /client-services
>> ff83c1a8: /address@hidden
>> ff83c330:   /address@hidden
>> ff83c4a8:   /macos
>> ff83c528: /options
>> ff83c5a8: /aliases
>> ff83cec8: /packages
>> ff83cf30:   /deblocker
>> ff83d798:   /disk-label
>> ff83e198:   /obp-tftp
>> ff8439f0:   /mac-parts
>> ff844850:   /mac-files
>> ff847540:   /hfs-plus-files
>> ff84c1c8:   /fat-files
>> ff84def8:   /iso-9660-files
>> ff84eb00:   /bootinfo-loader
>> ff8507a0:   /xcoff-loader
>> ff8511b8:   /pe-loader
>> ff851b90:   /elf-loader
>> ff8531c0:   /usb-hid-class
>> ff8554d8:   /usb-ms-class
>> ff8576a8:   /sbp2-disk
>> ff858ac0:   /ata-disk
>> ff859cd8:   /atapi-disk
>> ff85b348:   /bootpath-search
>> ff861b68:   /terminal-emulator
>> ff861c00: /psuedo-hid
>> ff861c88:   /keyboard
>> ff862308:   /mouse
>> ff862820: /multiboot
>> ff86e7f0: /diagnostics
>> ff86e858: /tools-node
>> ff8704b8: /rtas
>> ff8706b8: /address@hidden
>> ff871180: /address@hidden
>> ff8713c8:   /address@hidden
>> ff871b10:     /cereal
>> ff8721c0: /address@hidden
>> ff898cd0:   /address@hidden
>> ff898f40:   /ATY,address@hidden
>> ff873268: /address@hidden
>> ff8742d8:   /address@hidden
>> ff876368:     /address@hidden
>> ff8773a0:       /address@hidden
>> ff877548:       /address@hidden
>> ff877630:         /extint-gpio1
>> ff8777c8:         /programmer-switch
>> ff877900:       /address@hidden
>> ff877af8:         /address@hidden
>> ff877c78:         /address@hidden
>> ff877df8:       /address@hidden
>> ff878000:         /address@hidden
>> ff8789a8:         /address@hidden
>> ff8792c0:       /address@hidden
>> ff879540:         /sound
>> ff879c40:       /address@hidden
>> ff879da8:       /address@hidden
>> ff87ccf0:         /rtc
>> ff87d3e0:         /power-mgt
>> ff8bf378:           /usb-power-mgt
>> ff87d648:       /address@hidden
>> ff87ded8:         /cereal
>> ff87e5a0:       /address@hidden
>> ff880318:         /disk
>> ff8809e8:       /address@hidden
>> ff882760:         /disk
>> ff882da8:       /address@hidden
>> ff884b20:         /disk
>> ff8864c8:     /address@hidden
>> ff888690:     /address@hidden
>> ff88dd50:     /address@hidden
>> ff8be3f0:       /address@hidden
>> ff8be580:         /address@hidden
>> ff893410:     /address@hidden
>> ff8752e8: /address@hidden
>> ff8bb128:   /address@hidden
> 
> I've done quite a bit of work on Cormac's tree (primarily to fix CUDA
> issues that broke OS X among other things) and posted it to the
> qemu-devel list at
> https://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg05556.html.
> 
> The patchset posted works well for me here, and I suspect will fix the
> issues that you've been seeing. Note that you'll also need the separate
> OpenBIOS binary mentioned in the link above if you want to try booting
> OS 9 since one of the OpenBIOS patches hasn't been applied to trunk
> since it regresses other images.

It looks like you are saying you wish to keep the CUDA device. Mac OS 9 is most
likely hard coded to expect via-pmu instead of via-cuda on the mac99 target.
Moving on to via-pmu might make QEMU more compatible with Mac OS 9.
I will still try your patches. Do you have a repo that I could just clone? It 
is a
lot less error prone than patches. 


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