diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 4518dc50090380b6676074b3f2466709ddea5a4b..e3d4a0daff57564248646ebb637c417221dd85c3 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -158,6 +158,7 @@ struct bootnode;
 
 #ifdef CONFIG_ACPI_NUMA
 extern int acpi_numa;
+extern int acpi_get_nodes(struct bootnode *physnodes);
 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
 extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index fda0032c25c6e3c874b3cf4fb612012d586fddf6..f89141982702564a3b4048d662922705c01ef2b4 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -938,11 +938,12 @@ void __init setup_arch(char **cmdline_p)
 	/*
 	 * Parse SRAT to discover nodes.
 	 */
-	acpi_numa_init();
+	acpi = acpi_numa_init();
 #endif
 
 #ifdef CONFIG_K8_NUMA
-	k8 = !k8_numa_init(0, max_pfn);
+	if (!acpi)
+		k8 = !k8_numa_init(0, max_pfn);
 #endif
 
 	initmem_init(0, max_pfn, acpi, k8);
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dad5f42dd35999335718be078ba4ef646a83ad5d..d1a3d94efc8ea3ad541a9b63c62592c0770ddf33 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -540,8 +540,8 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
 #endif
 
 #ifdef CONFIG_ACPI_NUMA
-	if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
-					  last_pfn << PAGE_SHIFT))
+	if (!numa_off && acpi && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
+						  last_pfn << PAGE_SHIFT))
 		return;
 	nodes_clear(node_possible_map);
 	nodes_clear(node_online_map);
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index dbb5381f7b3b58ec41f026cd65d592bc1c2871ff..891cbe65b2d5a7eb94389dfea2de9e4a91e3bbcc 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -290,8 +290,6 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
 	       start, end);
-	e820_register_active_regions(node, start >> PAGE_SHIFT,
-				     end >> PAGE_SHIFT);
 
 	if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) {
 		update_nodes_add(node, start, end);
@@ -338,6 +336,19 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
 
 void __init acpi_numa_arch_fixup(void) {}
 
+int __init acpi_get_nodes(struct bootnode *physnodes)
+{
+	int i;
+	int ret = 0;
+
+	for_each_node_mask(i, nodes_parsed) {
+		physnodes[ret].start = nodes[i].start;
+		physnodes[ret].end = nodes[i].end;
+		ret++;
+	}
+	return ret;
+}
+
 /* Use the information discovered above to actually set up the nodes. */
 int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 {
@@ -350,11 +361,6 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 	for (i = 0; i < MAX_NUMNODES; i++)
 		cutoff_node(i, start, end);
 
-	if (!nodes_cover_memory(nodes)) {
-		bad_srat();
-		return -1;
-	}
-
 	memnode_shift = compute_hash_shift(node_memblk_range, num_node_memblks,
 					   memblk_nodeid);
 	if (memnode_shift < 0) {
@@ -364,6 +370,14 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 		return -1;
 	}
 
+	for_each_node_mask(i, nodes_parsed)
+		e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+						nodes[i].end >> PAGE_SHIFT);
+	if (!nodes_cover_memory(nodes)) {
+		bad_srat();
+		return -1;
+	}
+
 	/* Account for nodes with cpus and no memory */
 	nodes_or(node_possible_map, nodes_parsed, cpu_nodes_parsed);
 
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 202dd0c976a32e4486bb358f90fa078885ac0dbe..2be2fb66204e53c18e63d30c9581dea4a9d71ade 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -283,22 +283,24 @@ acpi_table_parse_srat(enum acpi_srat_type id,
 
 int __init acpi_numa_init(void)
 {
+	int ret = 0;
+
 	/* SRAT: Static Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
 		acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY,
 				      acpi_parse_x2apic_affinity, NR_CPUS);
 		acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
 				      acpi_parse_processor_affinity, NR_CPUS);
-		acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
-				      acpi_parse_memory_affinity,
-				      NR_NODE_MEMBLKS);
+		ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
+					    acpi_parse_memory_affinity,
+					    NR_NODE_MEMBLKS);
 	}
 
 	/* SLIT: System Locality Information Table */
 	acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
 	acpi_numa_arch_fixup();
-	return 0;
+	return ret;
 }
 
 int acpi_get_pxm(acpi_handle h)