Avi Kivity wrote:
> Hollis Blanchard wrote:
>> On Fri, 2007-10-26 at 10:21 +0200, Carsten Otte wrote:
>> 
>>> As Xiantao pointed out, x86 and ia64 can share the same memory setup
>>> code. But s390 and ppc don't. Therefore, I vote for putting it into
>>> x86 for now, and come up with an approach to share between x86 and
>>> ia64 later on. 
>>> 
>> 
>> The only thing in the current ioctl code that doesn't make sense for
>> PowerPC is the rmap stuff. The concept of "slots" as memory extents
>> is just fine. 
>> 
>> Originally, I think the only question was how to register the slots
>> on the kernel side. Today that is done with separate
>> KVM_SET_USER_MEMORY_REGION ioctls, one for each guest physical
>> region. 
>> 
> 
> Wht about aliases?  Aliases allow you go have two different physical
> addresses for the same page.  This is useful for mapping the
> framebuffer on x86 (both at the pci region and at 0xa0000, the
> traditional ISA location).
> 
> Are they useful for ia64?

Sure,  it also should benefit IA64 side :)
thanks 
Xiantao 

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