QEMU

[Cameron Berkenpas]

Hello,

This was very helpful! I switched to pseries-2.5 and my FreeBSD VM (KVM) 
works again!


On 2/23/19 5:49 AM, Jason Bacon wrote:
> On 7/21/18 1:06 PM, Jason Bacon wrote:
>> On 7/19/18 4:32 PM, Jason Bacon wrote:
>>> On 07/19/18 14:09, Chuck Tuffli wrote:
>>>> On Thu, Jul 12, 2018 at 8:09 AM, Jason Bacon <bacon4000 at gmail.com> 
>>>> wrote:
>>>>> FYI, I get the exact same behavior under qemu 2.8.1 on Debian.
>>>>>
>>>>> So now we have similar symptoms in qemu 2.8.1, 2.9, and 2.12.50 on 
>>>>> FreeBSD
>>>>> and Linux hosts.
>>>> FWIW, on an Ubuntu 14.04 system with qemu-system-ppc64 version 2.0.0,
>>>> the ppc64 snapshot ISO of 12.0, the OS appears to install correctly
>>>> and subsequently boots correctly.
>>>>
>>>> --chuck
>>> That's worth a lot, actually.
>>>
>>> The 12.0 snapshot also works on my FreeBSD 11.1 host with the stock 
>>> qemu package.  Both keyboard and mouse input are processed.
>>>
>>> Interestingly, though, while 12.0 works, it seems to be a lot slower 
>>> than 11.1 under qemu.  Below are times to get to the install 
>>> screen.  ( I just close the qemu window as soon as it reaches that 
>>> point, where 11.1 won't accept keyboard input. )
>>>
>>> FreeBSD cray.acadix  bacon ~ 999: time qemu-ppc install 
>>> freebsd-ppc.img 
>>> FreeBSD-12.0-CURRENT-powerpc-powerpc64-20180709-r336134-disc1.iso
>>> + [ ! -e freebsd-ppc.img ]
>>> + qemu-system-ppc64 -cdrom 
>>> FreeBSD-12.0-CURRENT-powerpc-powerpc64-20180709-r336134-disc1.iso 
>>> -drive 'file=freebsd-ppc.img,format=raw' -boot d
>>> 217.327u 3.455s 4:21.41 84.4%    9628+6292k 94+2io 476pf+0w
>>>
>>>
>>> FreeBSD cray.acadix  bacon ~ 1000: time qemu-ppc install 
>>> freebsd-ppc.img Save/FreeBSD-11.1-RELEASE-powerpc-powerpc64-disc1.iso
>>> + [ ! -e freebsd-ppc.img ]
>>> + qemu-system-ppc64 -cdrom 
>>> Save/FreeBSD-11.1-RELEASE-powerpc-powerpc64-disc1.iso -drive 
>>> 'file=freebsd-ppc.img,format=raw' -boot d
>>> 123.001u 1.748s 2:47.05 74.6%    9643+6302k 556+3io 0pf+0w
>>>
>>> Maybe these data will provide some clues to the ppc base developers...
>>>
>> I'm getting "lock order reversal" errors followed by stack traces 
>> when running portsnap.  Bleeding-edge 12.0 issue?
>>
>
> Poked around at this a bit more and found a workaround.  It seems 
> FreeBSD doesn't support the latest default PPC machine in qemu. 
> Available options are listed below.  After switching from the default 
> pseries-2.6 to pseries-2.5, FreeBSD 12.0 works flawlessly.
>
> I attached a script I'm using to install and then boot the VM.
>
> So now there's an easy way to test/fix ports for PPC64.  Runs about as 
> fast as a 486, but that's fine since we can install dependencies via 
> "pkg install" to reduce build time.
>
>
> FreeBSD cray.acadix  bacon ~ 1010: qemu-system-ppc -machine help
> Supported machines are:
> bamboo               bamboo
> g3beige              Heathrow based PowerMAC (default)
> mac99                Mac99 based PowerMAC
> mpc8544ds            mpc8544ds
> none                 empty machine
> ppce500              generic paravirt e500 platform
> prep                 PowerPC PREP platform
> ref405ep             ref405ep
> taihu                taihu
> virtex-ml507         Xilinx Virtex ML507 reference design
> FreeBSD cray.acadix  bacon ~ 1011: qemu-system-ppc64 -machine help
> Supported machines are:
> bamboo               bamboo
> g3beige              Heathrow based PowerMAC
> mac99                Mac99 based PowerMAC
> mpc8544ds            mpc8544ds
> none                 empty machine
> ppce500              generic paravirt e500 platform
> prep                 PowerPC PREP platform
> pseries-2.1          pSeries Logical Partition (PAPR compliant)
> pseries-2.2          pSeries Logical Partition (PAPR compliant)
> pseries-2.3          pSeries Logical Partition (PAPR compliant)
> pseries-2.4          pSeries Logical Partition (PAPR compliant)
> pseries-2.5          pSeries Logical Partition (PAPR compliant)
> pseries              pSeries Logical Partition (PAPR compliant) (alias 
> of pseries-2.6)
> pseries-2.6          pSeries Logical Partition (PAPR compliant) (default)
> ref405ep             ref405ep
> taihu                taihu
> virtex-ml507         Xilinx Virtex ML507 reference design
>
>
>
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