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Re: [Qemu-ppc] [PATCH 0/2] vfio: Another try to fix ROM BAR endianness
From: |
Alexey Kardashevskiy |
Subject: |
Re: [Qemu-ppc] [PATCH 0/2] vfio: Another try to fix ROM BAR endianness |
Date: |
Thu, 18 Sep 2014 23:55:07 +1000 |
User-agent: |
Mozilla/5.0 (X11; Linux i686 on x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 |
On 09/12/2014 11:30 AM, Alexey Kardashevskiy wrote:
> On 09/12/2014 07:20 AM, Alex Williamson wrote:
>> On Tue, 2014-09-09 at 21:34 +1000, Alexey Kardashevskiy wrote:
>>> I did some tests on LE/BE guest/host combinations and came up with
>>> these 2 patches. Please comment. Thanks.
>>
>> Have you tried BE guest/LE host?
>
> Yes.
Double checked, LE-BE host-guest work in any combination.
>> IIRC, the g3beige tcg guest on x86
>> host used to work with a vfio-pci NIC. The ROM is of course typically
>> useless in this mode, but it would be nice to make sure we haven't
>> broken BAR access for that combination. Do we have any better BE tcg
>> targets with PCI support these days? Thanks,
>
> pseries? PPC64 TCG can do VFIO.
And checked this too, VFIO works in BE TCG PPC64 guest running on PPC64 LE
host.
--
Alexey