diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 9e13763..1e99475 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -45,6 +45,7 @@
 obj-y			+= alternative.o i8253.o pci-nommu.o hw_breakpoint.o
 obj-y			+= tsc.o io_delay.o rtc.o
 obj-y			+= pci-iommu_table.o
+obj-y			+= resource.o
 
 obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
 obj-y				+= process.o
diff --git a/arch/x86/kernel/resource.c b/arch/x86/kernel/resource.c
new file mode 100644
index 0000000..407a900
--- /dev/null
+++ b/arch/x86/kernel/resource.c
@@ -0,0 +1,11 @@
+#include <linux/ioport.h>
+#include <asm/e820.h>
+
+void arch_remove_reservations(struct resource *avail)
+{
+	/* Trim out BIOS area (low 1MB) */
+	if (avail->flags & IORESOURCE_MEM) {
+		if (avail->start < BIOS_END)
+			avail->start = BIOS_END;
+	}
+}
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 8379c2c..b1805b7 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -72,9 +72,6 @@
 			return start;
 		if (start & 0x300)
 			start = (start + 0x3ff) & ~0x3ff;
-	} else if (res->flags & IORESOURCE_MEM) {
-		if (start < BIOS_END)
-			start = BIOS_END;
 	}
 	return start;
 }