Re: [Xen-devel] [PATCH] xen: limit memory to architectural maximum

From: Roger Pau MonnÃ
Date: Fri Sep 04 2015 - 10:10:16 EST

El 04/09/15 a les 14.18, Juergen Gross ha escrit:
> When a pv-domain (including dom0) is started it tries to size it's
> p2m list according to the maximum possible memory amount it ever can
> achieve. Limit the initial maximum memory size to the architectural
> limit of the hardware in order to avoid overflows during remapping
> of memory.
> This problem will occur when dom0 is started with an initial memory
> size being a multiple of 1GB, but without specifying it's maximum
> memory size. The kernel must be configured without
> CONFIG_XEN_BALLOON_MEMORY_HOTPLUG for the problem to happen.
> Reported-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Tested-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at