Re: [PATCH] arm: kvm: Update kvm/arm headers.

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On 10/17/2012 11:14 AM, Marc Zyngier wrote:
> On 17/10/12 05:52, Alexander Graf wrote:
>>
>> On 17.10.2012, at 04:36, Christoffer Dall<c.dall@xxxxxxxxxxxxxxxxxxxxxx>  wrote:
>>
>>> The offsets for the registers have changed, so this patch updates the
>>> headers and fixes the offsets and the compilation in one.
>> This means that any Linux internal change to pt_regs will break KVM ABI compatibility? I really dislike this automatic generation of one_reg ids based on struct offsets :(
> pt_regs are already part of the Linux/ARM ABI, and changing this
> structure would break much more than just KVM (gdb, strace, ptrace, to
> only name a few...)
>
> Consider ARM pt_regs to be cast in stone for the next century or so...

Ok, good :). Please be aware that the one_reg ids are ABI as well, thus 
need to stay stable over the next century too :)


Alex

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