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Commit 24bdb0b6 authored by Stefano Stabellini's avatar Stefano Stabellini Committed by Konrad Rzeszutek Wilk
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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: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent f0e615c3

arch/x86/xen/setup.c

+1 −1
Original line number Diff line number Diff line
@@ -227,7 +227,7 @@ char * __init xen_memory_setup(void) 


	memcpy(map_raw, map, sizeof(map));

	e820.nr_map = 0;

	xen_extra_mem_start = mem_end;

	xen_extra_mem_start = max((1ULL << 32), mem_end);

	for (i = 0; i < memmap.nr_entries; i++) {

		unsigned long long end;