xen: do not create the extra e820 region at an addr lower than 4G
Do not add the extra e820 region at a physical address lower than 4G because it breaks e820_end_of_low_ram_pfn(). It is OK for us to move the xen_extra_mem_start up and down because this is the index of the memory that can be ballooned in/out - it is memory not available to the kernel during bootup. Signed-off-by:Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent
f0e615c3
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