Re: [Xen-devel] [Patch V2 1/2] xen: prepare p2m list for memory hotplug

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

On Fri, Mar 20, 2015 at 01:55:38PM +0100, Juergen Gross wrote:
> Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
> virtual mapped sparse p2m list") introduced a regression regarding to
> memory hotplug for a pv-domain: as the virtual space for the p2m list
> is allocated for the to be expected memory size of the domain only,
> hotplugged memory above that size will not be usable by the domain.
>
> Correct this by using a configurable size for the p2m list in case of
> memory hotplug enabled (default supported memory size is 512 GB for
> 64 bit domains and 4 GB for 32 bit domains).
>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>

Daniel

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