x86/xen: add extra memory for remapped frames during setup

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If the non-RAM regions in the e820 memory map are larger than the size
of the initial balloon, a BUG was triggered as the frames are remaped
beyond the limit of the linear p2m.  The frames are remapped into the
initial balloon area (xen_extra_mem) but not enough of this is
available.

Ensure enough extra memory regions are added for these remapped
frames.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>

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This commit is contained in:

David Vrabel 2015-01-07 11:21:50 +00:00

parent bc7142cf79

commit a97dae1a2e

1 changed files with 9 additions and 4 deletions

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arch/x86/xen/setup.c

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