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authorJuergen Gross <jgross@suse.com>2015-07-17 06:51:35 +0200
committerDavid Vrabel <david.vrabel@citrix.com>2015-08-20 12:24:24 +0100
commit70e61199559a09c62714694cd5ac3c3640c41552 (patch)
tree6bc58e53e500ea120ecd1780d0a195b656501ffc /include/xen
parent6c2681c863b24360098d1ba60f2af060a13a0561 (diff)
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>
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