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xen: fix for xen guest with mem > 3.7G

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PFN_PHYS() can truncate large addresses unless its passed a suitable
large type.  This is fixed more generally in the patch series
introducing phys_addr_t, but we need a short-term fix to solve a
Xen regression reported by Roberto De Ioris.

Reported-by: Roberto De Ioris <roberto@unbit.it>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge 2008-09-14 07:42:23 -07:00 committed by Ingo Molnar
parent 0ad5bce740
commit 5670a43d71
1 changed files with 1 additions and 1 deletions
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arch/x86/xen/setup.c
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@ -42,7 +42,7 @@ char * __init xen_memory_setup(void)
e820.nr_map = 0;
e820_add_region(0, PFN_PHYS(max_pfn), E820_RAM);
e820_add_region(0, PFN_PHYS((u64)max_pfn), E820_RAM);
/*
* Even though this is normal, usable memory under Xen, reserve