Re: [Qemu-devel] [RFC v2 03/20] memory: merge adjacent segments of a single memory region

[Jan Kiszka]

On 2011-06-27 15:21, Avi Kivity wrote:
> Simple implementations of memory routers, for example the Cirrus VGA memory 
> banks
> or the 440FX PAM registers can generate adjacent memory regions which are 
> contiguous.
> Detect these and merge them; this saves kvm memory slots and shortens lookup 
> times.

That reminds me of KVM_CAP_JOIN_MEMORY_REGIONS_WORKS. Have you checked
if things still work in the absence of the feature or if we need to lift
our requirements on the host kernel (would be 2.6.30, not that problematic)?

Jan

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