diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 9ba0b957d11f..040451e90a04 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -608,6 +608,10 @@ static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
 	acpi_fadt.sci_int = fadt->sci_int;
 #endif
 
+	/* initialize rev and apic_phys_dest_mode for x86_64 genapic */
+	acpi_fadt.revision = fadt->revision;
+	acpi_fadt.force_apic_physical_destination_mode = fadt->force_apic_physical_destination_mode;
+
 #ifdef CONFIG_X86_PM_TIMER
 	/* detect the location of the ACPI PM Timer */
 	if (fadt->revision >= FADT2_REVISION_ID) {
diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c
index d2c42fb99cb3..69b9c25a8fc4 100644
--- a/arch/x86_64/kernel/genapic.c
+++ b/arch/x86_64/kernel/genapic.c
@@ -20,6 +20,10 @@
 #include <asm/smp.h>
 #include <asm/ipi.h>
 
+#if defined(CONFIG_ACPI_BUS)
+#include <acpi/acpi_bus.h>
+#endif
+
 /* which logical CPU number maps to which CPU (physical APIC ID) */
 u8 x86_cpu_to_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
 EXPORT_SYMBOL(x86_cpu_to_apicid);
@@ -47,6 +51,18 @@ void __init clustered_apic_check(void)
 		goto print;
 	}
 
+#if defined(CONFIG_ACPI_BUS)
+	/*
+	 * Some x86_64 machines use physical APIC mode regardless of how many
+	 * procs/clusters are present (x86_64 ES7000 is an example).
+	 */
+	if (acpi_fadt.revision > FADT2_REVISION_ID)
+		if (acpi_fadt.force_apic_physical_destination_mode) {
+			genapic = &apic_cluster;
+			goto print;
+		}
+#endif
+
 	memset(cluster_cnt, 0, sizeof(cluster_cnt));
 
 	for (i = 0; i < NR_CPUS; i++) {