From: Jeremy Fitzhardinge Date: Sun, 14 Sep 2008 14:42:23 +0000 (-0700) Subject: xen: fix for xen guest with mem > 3.7G X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5670a43d710a12fcbbfaefd3991002768b488d82;p=linux-2.6 xen: fix for xen guest with mem > 3.7G 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 Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index b6acc3a0af..d679010838 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -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