From patchwork Wed Oct 13 16:15:31 2010
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Subject: [PATCH v3 5/6] x86: update iomem_resource end based on CPU physical
	address capabilities
To: Jesse Barnes <jbarnes@virtuousgeek.org>
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Bob Picco <bpicco@redhat.com>, Brian Bloniarz <phunge0@hotmail.com>,
	Charles Butterfield <charles.butterfield@nextcentury.com>,
	Denys Vlasenko <dvlasenk@redhat.com>, linux-pci@vger.kernel.org,
	"Horst H. von Brand" <vonbrand@inf.utfsm.cl>,
	linux-kernel@vger.kernel.org, Stefan Becker <chemobejk@gmail.com>,
	"H. Peter Anvin" <hpa@zytor.com>, Yinghai Lu <yinghai@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>
Date: Wed, 13 Oct 2010 10:15:31 -0600
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diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c3a4fbb..922b5a1 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -788,6 +788,7 @@ void __init setup_arch(char **cmdline_p)
 
 	x86_init.oem.arch_setup();
 
+	iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
 	setup_memory_map();
 	parse_setup_data();
 	/* update the e820_saved too */