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Re: [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG

On 24.03.20 13:00, Roger Pau Monné wrote:
Adding Juergen and Boris for feedback.

On Tue, Mar 24, 2020 at 11:57:48AM +0000, Ian Jackson wrote:
Ian Jackson writes ("Re: [PATCH OSSTEST] kernel-build: enable 
Roger Pau Monne writes ("[PATCH OSSTEST] kernel-build: enable 
This allows a PVH/HVM domain to use unpopulated memory ranges to map
foreign memory or grants, and is required for a PVH dom0 to function

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

I will push this to pretest immediately.

Now done.  Would you consider whether the default should be changed
in Linux and prepare a patch to do so if appropriate ?

DYK if there's any reason why this is not on by default?

AFAIK the default has been off since introduction in 2011.

I don't know the reason for that.




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