[PATCH] KVM: PPC: bookehv: Allow duplicate calls of DO_KVM macro

[Alexander Graf]

On 12.09.2012, at 23:38, Scott Wood <scottwood at freescale.com> wrote:

> On 09/12/2012 01:56 PM, Alexander Graf wrote:
>> 
>> 
>> On 12.09.2012, at 15:18, Mihai Caraman <mihai.caraman at freescale.com> wrote:
>> 
>>> The current form of DO_KVM macro restricts its use to one call per input
>>> parameter set. This is caused by kvmppc_resume_\intno\()_\srr1 symbol
>>> definition.
>>> Duplicate calls of DO_KVM are required by distinct implementations of
>>> exeption handlers which are delegated at runtime.
>> 
>> Not sure I understand what you're trying to achieve here. Please elaborate ;)
> 
> On 64-bit book3e we compile multiple versions of the TLB miss handlers,
> and choose from them at runtime.  

Why?

> Without this patch, we get duplicate
> label errors if more than one variant of the same exception uses DO_KVM.

Makes sense. The proposed solution also looks good. Just quickly walk me through the reasoning for the runtime check again please.


Alex

> 
> -Scott
> 
> 
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