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Re: [Qemu-devel] [RFC 0/2] macio: split out unaligned DMA access into se

From: Mark Cave-Ayland
Subject: Re: [Qemu-devel] [RFC 0/2] macio: split out unaligned DMA access into separate functions
Date: Fri, 22 May 2015 20:52:00 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0

On 22/05/15 19:20, John Snow wrote:

>>> Code fails 32 bit build due to %lx debug prints. I'll edit them
>>> accordingly if that is OK by you.
>> Please go right ahead :)  Do you need a proper re-spin without the RFC
>> prefix? If so, I can make the changes there if that helps?
>> ATB,
>> Mark.
> Nah, the tags seem to get dropped when you pull everything into git
> anyway, so it's no biggie.
> Thanks,
> --js
> As a post-script, can Darwin/PPC use a different mechanism for ATA at
> all, or is macio the sole ATA interface we support here?
> I want to see if I can pinpoint when a "good" bath and when a bad path
> diverges with respect to the disk contents ...
> Or if you have other ideas on how to identify the transfer that causes
> the issue, I'm all ears.

Mounting the ISO manually I can see there is CMD646ATA.kext in the
/System/Library/Extensions directory, so in theory you should be able to
add a CMD646 PCI interface (OpenBIOS will enumerate the PCI bus as
presented by QEMU) and it might work.



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