Re: [Qemu-devel] [PATCH] memory: simple memory tree printer

[Jan Kiszka]

On 2011-09-15 11:53, Avi Kivity wrote:
>>>   The host pci bridge remaps this as
>>>  0x1000000105-0x1000000106 in the memory address space space.  But
>>>  someone configured a cpu-local region at this address, so the cpu can't
>>>  reach it at all.
>>
>> Mapping PIO into MMIO space is special as it needs an intermediate layer
>> (ie. translation handlers).
> 
> Translation handlers aren't needed - you can simply add the pci pio 
> region as a subregion of the mmio space.

>From the outer perspective. But internally, there is still
memory_region_iorange_read/write.

The point is that no use case actually justifies memory_region_set_offset.

Jan

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