Re: [Qemu-devel] [PATCH for-1.5 0/9] Disable expensive QOM cast debugging for official releases

[Andreas Färber]

Am 10.05.2013 16:46, schrieb Aurelien Jarno:
> We have changed a pointer access in a hot path (and more are likely to
> come as far as I know) to a complex function. The correct way to fix
> that is to remove the complex function.

FWIW I had started to investigate whether I can tweak TCG to use
CPUFooState for its offset calculations as-is but to call helpers with
FooCPU to get code in a uniform shape, not constantly coding casts as
first thing in helper functions. We'd need a pointer similar to
CPUState::env_ptr in the back part of CPU_COMMON, make FooCPU available
as ArchCPU define and tweak the helper templates to support cpu type
argument in addition to env. So far just an idea.

Andreas

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