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Re: [Qemu-devel] [PATCH v3 3/4] target-ppc: ppc can be either endian

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH v3 3/4] target-ppc: ppc can be either endian
Date: Wed, 7 May 2014 10:40:02 +0100

On 7 May 2014 10:37, Alexander Graf <address@hidden> wrote:
>> Am 07.05.2014 um 11:26 schrieb Peter Maydell <address@hidden>:
>>> On 7 May 2014 10:09, Alexander Graf <address@hidden> wrote:
>>> I don't think we should overengineer hacks for legacy virtio.
>> Agreed. So what's our final conclusion: virtio endianness
>> is the endianness of the guest kernel at the point where
>> it triggers a reset of the virtio device, yes?
> The interrupt endianness for book3s PPC. Since that's an arch
> specific thing I think we should just make the determination
> mechanism arch dependent and list it in the spec.
> Booke for example would be vastly different since there is no
> global LE flag - it's a bit in the TLB entries.

Sure, but I think we should also state the general principle
we're aiming to implement with the arch specific detail,
so that people figuring out what a new arch should do
have a guide to follow.

-- PMM

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