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[Qemu-devel] Re: [0/27] Implement emulation of pSeries logical partition

From: Alexander Graf
Subject: [Qemu-devel] Re: [0/27] Implement emulation of pSeries logical partitions (v4)
Date: Wed, 23 Mar 2011 22:29:04 +0100

On 23.03.2011, at 22:08, Benjamin Herrenschmidt wrote:

> On Wed, 2011-03-23 at 15:45 +0100, Alexander Graf wrote:
>> What's the magic to start a guest? I tried passing a disk which SLOF
>> didn't detect (obviously - there's no IDE there). I also tried running
>> a kernel directly with -kernel which gave me no output. How are you
>> usually running your images? 
> hrm... you using -M pseries right ?


> so -kernel should work with a kernel that is compiled for the pseries
> platform (and it won't use SLOF).

Yeah, that part works.

> a disk should work with SLOF if you use the default which is scsi (ie
> pseries machine sets that flag that tells qemu to default to scsi, which
> is then picked up by our vscsi).
> IE. You should be able to stick a distro ISO in the virtual CD-ROM and
> boot from that with SLOF. SLOF will read the qemu boot list (tho it only
> knows about "c", "d" and "n" at that stage) and try them in order.

That one doesn't. If I just pass in a disk w/o specifically saying it's a scsi 
disk I end up with no hard disk in the guest :).


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