xen/setup: Fix for incorrect xen_extra_mem_start initialization under 32-bit

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git commit 24bdb0b62c (xen: do not create
the extra e820 region at an addr lower than 4G) does not take into
account that ifdef CONFIG_X86_32 instead of e820_end_of_low_ram_pfn()
find_low_pfn_range() is called (both calls are from arch/x86/kernel/setup.c).
find_low_pfn_range() behaves correctly and does not require change in
xen_extra_mem_start initialization. Additionally, if xen_extra_mem_start
is initialized in the same way as ifdef CONFIG_X86_64 then memory hotplug
support for Xen balloon driver (under development) is broken.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Daniel Kiper 2011-05-11 22:34:38 +02:00 • committed by Konrad Rzeszutek Wilk

parent 15bfc09451

commit 0f16d0dfcd

1 changed files with 4 additions and 0 deletions

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arch/x86/xen/setup.c

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