Re: [PATCH v2] qemu-kvm: Remove icache flush from cpu_physical_memory_rw

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On 01/19/2012 12:04 PM, Jan Kiszka wrote:
> On 2012-01-19 18:54, Marcelo Tosatti wrote:
>> On Thu, Jan 19, 2012 at 01:39:24PM +0100, Jan Kiszka wrote:
>>> This is at best a PPC topi but according to [1] even there unneeded. In
>>> any case, remove this diff to upstream, it should be handled there if
>>> actually needed.
>>
>> [1] ? 
>>
> 
> Oops.
> 
> --------8<---------
> 
> This is at best a PPC topi but according to [1] even there unneeded. In
> any case, remove this diff to upstream, it should be handled there if
> actually needed.
> 
> [1] http://thread.gmane.org/gmane.comp.emulators.qemu/119022/focus=119086

That says that it's unneeded on (some?) IBM Power systems.  We need it
on Freescale chips.  I submitted an upstream-QEMU patch to do this flush
(referenced in that thread, still not applied) because I was seeing
cache problems when loading images.

-Scott

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