tree 6bc58e53e500ea120ecd1780d0a195b656501ffc
parent 6c2681c863b24360098d1ba60f2af060a13a0561
author Juergen Gross <jgross@suse.com> 1437108695 +0200
committer David Vrabel <david.vrabel@citrix.com> 1440069864 +0100

xen: move p2m list if conflicting with e820 map

Check whether the hypervisor supplied p2m list is placed at a location
which is conflicting with the target E820 map. If this is the case
relocate it to a new area unused up to now and compliant to the E820
map.

As the p2m list might by huge (up to several GB) and is required to be
mapped virtually, set up a temporary mapping for the copied list.

For pvh domains just delete the p2m related information from start
info instead of reserving the p2m memory, as we don't need it at all.

For 32 bit kernels adjust the memblock_reserve() parameters in order
to cover the page tables only. This requires to memblock_reserve() the
start_info page on it's own.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>