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RE: [PATCH] qemu-kvm: Flush icache after dma operations for ia64

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Hi, Jes
    Have you verified whether it works for you ?  You may run kernel build in the guest with 4 vcpus,  if it can be done successfully without any error, it should be Okay I think, otherwise, we may need to investigate it further. :)
Xiantao 
 


	 

-----Original Message-----
From: Jes Sorensen [mailto:jes@xxxxxxx] 
Sent: Tuesday, June 02, 2009 6:57 PM
To: Avi Kivity
Cc: Zhang, Xiantao; kvm@xxxxxxxxxxxxxxx; kvm-ia64@xxxxxxxxxxxxxxx; Hollis Blanchard
Subject: Re: [PATCH] qemu-kvm: Flush icache after dma operations for ia64

Avi Kivity wrote:
> Zhang, Xiantao wrote:
>> Fine to me.  But seems the change in qemu_iovec_from_buffer is lost in 
>> this patch or that change is also not unnecessary ?
> 
> I think the fixed unmap handles that case.  Can you test to make sure?
> 

Avi and I went through the code and verified that it was all covered by
the unmap case. It was pretty messy to come to the conclusion, which is
why I tried to document it in the code and the patch description.

Cheers,
Jes
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