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Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
-rw-r--r--arch/x86/kernel/cpu/common.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 3ffdcfa9abdf..5b9cb8839cae 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -853,6 +853,9 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
numa_add_cpu(smp_processor_id());
#endif
+
+ /* Cap the iomem address space to what is addressable on all CPUs */
+ iomem_resource.end &= (1ULL << c->x86_phys_bits) - 1;
}
#ifdef CONFIG_X86_64