- library to count cpus by probing acpi for local APICs

5 files changed, 1895 insertions, 0 deletions

diff --git a/isys/acpi.c b/isys/acpi.c
new file mode 100644
index 000000000..e74db2886
--- /dev/null
+++ b/isys/acpi.c
@@ -0,0 +1,1161 @@
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#if defined(__x86_64__) || defined(__i386__)
+
+#define APIC_DEFAULT_PHYS_BASE 0xfee00000
+
+#ifdef DIET
+typedef uint64_t u64;
+typedef uint32_t u32;
+typedef uint16_t u16;
+typedef uint8_t u8;
+#else
+typedef u_int64_t u64;
+typedef u_int32_t u32;
+typedef u_int16_t u16;
+typedef u_int8_t u8;
+#endif
+
+#define phys_to_virt(a) (a)
+#define __va(a) ((void *)a)
+#define __pa(a) ((void *)a)
+
+#define __init
+#define __initdata
+#define printk(format, ...)
+#define KERN_WARNING ""
+#define KERN_ERR ""
+#define KERN_DEBUG ""
+#define KERN_INFO
+
+static const int efi_enabled = 0;
+static const struct {
+    unsigned long acpi20;
+    unsigned long acpi;
+} efi = {0,0};
+
+static struct acpi_table_rsdp *rsdp = NULL;
+
+static void mp_register_lapic(u8 id, u8 enabled);
+
+static void *mem_chunk(size_t base, size_t len, const char *devmem)
+{
+	void *p;
+	int fd;
+	size_t mmoffset;
+	void *mmp;
+        size_t pgsz;
+
+#ifdef _SC_PAGESIZE
+	pgsz = sysconf(_SC_PAGESIZE);
+#else
+	pgsz = getpagesize();
+#endif /* _SC_PAGESIZE */
+
+        len = (len + (pgsz-1)) & ~(pgsz-1);
+        
+	if((fd=open(devmem, O_RDONLY))==-1)
+	{
+		//perror(devmem);
+		return NULL;
+	}
+	
+	if((p=malloc(len))==NULL)
+	{
+		//perror("malloc");
+		return NULL;
+	}
+	
+        mmoffset = base % pgsz;
+	/*
+	 * Please note that we don't use mmap() for performance reasons here,
+	 * but to workaround problems many people encountered when trying
+	 * to read from /dev/mem using regular read() calls.
+	 */
+	mmp=mmap(0, mmoffset+len, PROT_READ, MAP_SHARED, fd, base-mmoffset);
+	if(mmp==MAP_FAILED)
+	{
+		free(p);
+		return NULL;
+	}
+	
+	memcpy(p, (u8 *)mmp+mmoffset, len);
+
+	munmap(mmp, mmoffset+len);
+
+	close(fd);
+
+	return p;
+}
+
+#include "acpi/actbl.h"
+
+/* Root System Description Pointer (RSDP) */
+
+struct acpi_table_rsdp {
+	char			signature[8];
+	u8			checksum;
+	char			oem_id[6];
+	u8			revision;
+	u32			rsdt_address;
+} __attribute__ ((packed));
+
+struct acpi20_table_rsdp {
+	char			signature[8];
+	u8			checksum;
+	char			oem_id[6];
+	u8			revision;
+	u32			rsdt_address;
+	u32			length;
+	u64			xsdt_address;
+	u8			ext_checksum;
+	u8			reserved[3];
+} __attribute__ ((packed));
+
+typedef struct {
+	u8			type;
+	u8			length;
+} __attribute__ ((packed)) acpi_table_entry_header;
+
+/* Root System Description Table (RSDT) */
+
+struct acpi_table_rsdt {
+	struct acpi_table_header header;
+	u32			entry[8];
+} __attribute__ ((packed));
+
+/* Extended System Description Table (XSDT) */
+
+struct acpi_table_xsdt {
+	struct acpi_table_header header;
+	u64			entry[1];
+} __attribute__ ((packed));
+
+/* Fixed ACPI Description Table (FADT) */
+
+struct acpi_table_fadt {
+	struct acpi_table_header header;
+	u32 facs_addr;
+	u32 dsdt_addr;
+	/* ... */
+} __attribute__ ((packed));
+
+/* Multiple APIC Description Table (MADT) */
+
+struct acpi_table_madt {
+	struct acpi_table_header header;
+	u32			lapic_address;
+	struct {
+		u32			pcat_compat:1;
+		u32			reserved:31;
+	}			flags;
+} __attribute__ ((packed));
+
+enum acpi_madt_entry_id {
+	ACPI_MADT_LAPIC = 0,
+	ACPI_MADT_IOAPIC,
+	ACPI_MADT_INT_SRC_OVR,
+	ACPI_MADT_NMI_SRC,
+	ACPI_MADT_LAPIC_NMI,
+	ACPI_MADT_LAPIC_ADDR_OVR,
+	ACPI_MADT_IOSAPIC,
+	ACPI_MADT_LSAPIC,
+	ACPI_MADT_PLAT_INT_SRC,
+	ACPI_MADT_ENTRY_COUNT
+};
+
+typedef struct {
+	u16			polarity:2;
+	u16			trigger:2;
+	u16			reserved:12;
+} __attribute__ ((packed)) acpi_interrupt_flags;
+
+struct acpi_table_lapic {
+	acpi_table_entry_header	header;
+	u8			acpi_id;
+	u8			id;
+	struct {
+		u32			enabled:1;
+		u32			reserved:31;
+	}			flags;
+} __attribute__ ((packed));
+
+struct acpi_table_ioapic {
+	acpi_table_entry_header	header;
+	u8			id;
+	u8			reserved;
+	u32			address;
+	u32			global_irq_base;
+} __attribute__ ((packed));
+
+struct acpi_table_int_src_ovr {
+	acpi_table_entry_header	header;
+	u8			bus;
+	u8			bus_irq;
+	u32			global_irq;
+	acpi_interrupt_flags	flags;
+} __attribute__ ((packed));
+
+struct acpi_table_nmi_src {
+	acpi_table_entry_header	header;
+	acpi_interrupt_flags	flags;
+	u32			global_irq;
+} __attribute__ ((packed));
+
+struct acpi_table_lapic_nmi {
+	acpi_table_entry_header	header;
+	u8			acpi_id;
+	acpi_interrupt_flags	flags;
+	u8			lint;
+} __attribute__ ((packed));
+
+struct acpi_table_lapic_addr_ovr {
+	acpi_table_entry_header	header;
+	u8			reserved[2];
+	u64			address;
+} __attribute__ ((packed));
+
+struct acpi_table_iosapic {
+	acpi_table_entry_header	header;
+	u8			id;
+	u8			reserved;
+	u32			global_irq_base;
+	u64			address;
+} __attribute__ ((packed));
+
+struct acpi_table_lsapic {
+	acpi_table_entry_header	header;
+	u8			acpi_id;
+	u8			id;
+	u8			eid;
+	u8			reserved[3];
+	struct {
+		u32			enabled:1;
+		u32			reserved:31;
+	}			flags;
+} __attribute__ ((packed));
+
+struct acpi_table_plat_int_src {
+	acpi_table_entry_header	header;
+	acpi_interrupt_flags	flags;
+	u8			type;	/* See acpi_interrupt_type */
+	u8			id;
+	u8			eid;
+	u8			iosapic_vector;
+	u32			global_irq;
+	struct {
+		u32			cpei_override_flag:1;
+		u32			reserved:31;
+	}			plint_flags;
+} __attribute__ ((packed));
+
+enum acpi_interrupt_id {
+	ACPI_INTERRUPT_PMI	= 1,
+	ACPI_INTERRUPT_INIT,
+	ACPI_INTERRUPT_CPEI,
+	ACPI_INTERRUPT_COUNT
+};
+
+#define	ACPI_SPACE_MEM		0
+
+struct acpi_gen_regaddr {
+	u8  space_id;
+	u8  bit_width;
+	u8  bit_offset;
+	u8  resv;
+	u32 addrl;
+	u32 addrh;
+} __attribute__ ((packed));
+
+struct acpi_table_hpet {
+	struct acpi_table_header header;
+	u32 id;
+	struct acpi_gen_regaddr addr;
+	u8 number;
+	u16 min_tick;
+	u8 page_protect;
+} __attribute__ ((packed));
+
+/*
+ * Simple Boot Flags
+ * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx
+ */
+struct acpi_table_sbf
+{
+	u8 sbf_signature[4];
+	u32 sbf_len;
+	u8 sbf_revision;
+	u8 sbf_csum;
+	u8 sbf_oemid[6];
+	u8 sbf_oemtable[8];
+	u8 sbf_revdata[4];
+	u8 sbf_creator[4];
+	u8 sbf_crearev[4];
+	u8 sbf_cmos;
+	u8 sbf_spare[3];
+} __attribute__ ((packed));
+
+/*
+ * System Resource Affinity Table (SRAT)
+ * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx
+ */
+
+struct acpi_table_srat {
+	struct acpi_table_header header;
+	u32			table_revision;
+	u64			reserved;
+} __attribute__ ((packed));
+
+enum acpi_srat_entry_id {
+	ACPI_SRAT_PROCESSOR_AFFINITY = 0,
+	ACPI_SRAT_MEMORY_AFFINITY,
+	ACPI_SRAT_ENTRY_COUNT
+};
+
+struct acpi_table_processor_affinity {
+	acpi_table_entry_header	header;
+	u8			proximity_domain;
+	u8			apic_id;
+	struct {
+		u32			enabled:1;
+		u32			reserved:31;
+	}			flags;
+	u8			lsapic_eid;
+	u8			reserved[7];
+} __attribute__ ((packed));
+
+struct acpi_table_memory_affinity {
+	acpi_table_entry_header	header;
+	u8			proximity_domain;
+	u8			reserved1[5];
+	u32			base_addr_lo;
+	u32			base_addr_hi;
+	u32			length_lo;
+	u32			length_hi;
+	u32			memory_type;	/* See acpi_address_range_id */
+	struct {
+		u32			enabled:1;
+		u32			hot_pluggable:1;
+		u32			reserved:30;
+	}			flags;
+	u64			reserved2;
+} __attribute__ ((packed));
+
+enum acpi_address_range_id {
+	ACPI_ADDRESS_RANGE_MEMORY = 1,
+	ACPI_ADDRESS_RANGE_RESERVED = 2,
+	ACPI_ADDRESS_RANGE_ACPI = 3,
+	ACPI_ADDRESS_RANGE_NVS	= 4,
+	ACPI_ADDRESS_RANGE_COUNT
+};
+
+/*
+ * System Locality Information Table (SLIT)
+ *   see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf
+ */
+
+struct acpi_table_slit {
+	struct acpi_table_header header;
+	u64			localities;
+	u8			entry[1];	/* real size = localities^2 */
+} __attribute__ ((packed));
+
+/* Smart Battery Description Table (SBST) */
+
+struct acpi_table_sbst {
+	struct acpi_table_header header;
+	u32			warning;	/* Warn user */
+	u32			low;		/* Critical sleep */
+	u32			critical;	/* Critical shutdown */
+} __attribute__ ((packed));
+
+/* Embedded Controller Boot Resources Table (ECDT) */
+
+struct acpi_table_ecdt {
+	struct acpi_table_header 	header;
+	struct acpi_generic_address	ec_control;
+	struct acpi_generic_address	ec_data;
+	u32				uid;
+	u8				gpe_bit;
+	char				ec_id[0];
+} __attribute__ ((packed));
+
+/* PCI MMCONFIG */
+
+/* Defined in PCI Firmware Specification 3.0 */
+struct acpi_table_mcfg_config {
+	u32				base_address;
+	u32				base_reserved;
+	u16				pci_segment_group_number;
+	u8				start_bus_number;
+	u8				end_bus_number;
+	u8				reserved[4];
+} __attribute__ ((packed));
+struct acpi_table_mcfg {
+	struct acpi_table_header	header;
+	u8				reserved[8];
+	struct acpi_table_mcfg_config	config[0];
+} __attribute__ ((packed));
+
+/* Table Handlers */
+
+enum acpi_table_id {
+	ACPI_TABLE_UNKNOWN = 0,
+	ACPI_APIC,
+	ACPI_BOOT,
+	ACPI_DBGP,
+	ACPI_DSDT,
+	ACPI_ECDT,
+	ACPI_ETDT,
+	ACPI_FADT,
+	ACPI_FACS,
+	ACPI_OEMX,
+	ACPI_PSDT,
+	ACPI_SBST,
+	ACPI_SLIT,
+	ACPI_SPCR,
+	ACPI_SRAT,
+	ACPI_SSDT,
+	ACPI_SPMI,
+	ACPI_HPET,
+	ACPI_MCFG,
+	ACPI_TABLE_COUNT
+};
+
+typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size);
+
+extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT];
+
+typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end);
+
+static char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
+static void *acpi_find_rsdp (void);
+int acpi_boot_init (void);
+int acpi_boot_table_init (void);
+int acpi_numa_init (void);
+
+static int acpi_table_init (void);
+int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler);
+static int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
+static int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
+int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
+int acpi_parse_mcfg (unsigned long phys_addr, unsigned long size);
+
+/* from mpspec.h */
+#define MAX_APICS 255
+
+/* below here from drivers/acpi/tables.c */
+
+#define PREFIX			"ACPI: "
+
+#define ACPI_MAX_TABLES		128
+
+static char *acpi_table_signatures[ACPI_TABLE_COUNT] = {
+	[ACPI_TABLE_UNKNOWN] = "????",
+	[ACPI_APIC] = "APIC",
+	[ACPI_BOOT] = "BOOT",
+	[ACPI_DBGP] = "DBGP",
+	[ACPI_DSDT] = "DSDT",
+	[ACPI_ECDT] = "ECDT",
+	[ACPI_ETDT] = "ETDT",
+	[ACPI_FADT] = "FACP",
+	[ACPI_FACS] = "FACS",
+	[ACPI_OEMX] = "OEM",
+	[ACPI_PSDT] = "PSDT",
+	[ACPI_SBST] = "SBST",
+	[ACPI_SLIT] = "SLIT",
+	[ACPI_SPCR] = "SPCR",
+	[ACPI_SRAT] = "SRAT",
+	[ACPI_SSDT] = "SSDT",
+	[ACPI_SPMI] = "SPMI",
+	[ACPI_HPET] = "HPET",
+	[ACPI_MCFG] = "MCFG",
+};
+
+/* System Description Table (RSDT/XSDT) */
+struct acpi_table_sdt {
+	unsigned long pa;
+	enum acpi_table_id id;
+	unsigned long size;
+} __attribute__ ((packed));
+
+static unsigned long sdt_count;	/* Table count */
+
+static struct acpi_table_xsdt *mapped_xsdt = NULL;
+static struct acpi_table_rsdt *mapped_rsdt = NULL;
+
+static struct acpi_table_sdt sdt_entry[ACPI_MAX_TABLES] __initdata;
+
+
+/*
+ * acpi_get_table_header_early()
+ * for acpi_blacklisted(), acpi_table_get_sdt()
+ */
+static int __init
+acpi_get_table_header_early(enum acpi_table_id id,
+			    struct acpi_table_header **header)
+{
+	unsigned int i;
+	enum acpi_table_id temp_id;
+
+	/* DSDT is different from the rest */
+	if (id == ACPI_DSDT)
+		temp_id = ACPI_FADT;
+	else
+		temp_id = id;
+
+	/* Locate the table. */
+
+	for (i = 0; i < sdt_count; i++) {
+		if (sdt_entry[i].id != temp_id)
+			continue;
+		*header = (void *)
+		    __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size);
+		if (!*header) {
+			printk(KERN_WARNING PREFIX "Unable to map %s\n",
+			       acpi_table_signatures[temp_id]);
+			return -ENODEV;
+		}
+		break;
+	}
+
+	if (!*header) {
+		printk(KERN_WARNING PREFIX "%s not present\n",
+		       acpi_table_signatures[id]);
+		return -ENODEV;
+	}
+
+	/* Map the DSDT header via the pointer in the FADT */
+	if (id == ACPI_DSDT) {
+		struct fadt_descriptor_rev2 *fadt =
+		    (struct fadt_descriptor_rev2 *)*header;
+
+		if (fadt->revision == 3 && fadt->Xdsdt) {
+			*header = (void *)__acpi_map_table(fadt->Xdsdt,
+							   sizeof(struct
+								  acpi_table_header));
+		} else if (fadt->V1_dsdt) {
+			*header = (void *)__acpi_map_table(fadt->V1_dsdt,
+							   sizeof(struct
+								  acpi_table_header));
+		} else
+			*header = NULL;
+
+		if (!*header) {
+			printk(KERN_WARNING PREFIX "Unable to map DSDT\n");
+			return -ENODEV;
+		}
+	}
+
+	return 0;
+}
+
+static int __init
+acpi_table_parse_madt_family(enum acpi_table_id id,
+			     unsigned long madt_size,
+			     int entry_id,
+			     acpi_madt_entry_handler handler,
+			     unsigned int max_entries)
+{
+	void *madt = NULL;
+	acpi_table_entry_header *entry;
+	unsigned int count = 0;
+	unsigned long madt_end;
+	unsigned int i;
+
+	if (!handler)
+		return -EINVAL;
+
+	/* Locate the MADT (if exists). There should only be one. */
+
+	for (i = 0; i < sdt_count; i++) {
+		if (sdt_entry[i].id != id)
+			continue;
+		madt = (void *)
+		    __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size);
+		if (!madt) {
+			printk(KERN_WARNING PREFIX "Unable to map %s\n",
+			       acpi_table_signatures[id]);
+			return -ENODEV;
+		}
+		break;
+	}
+
+	if (!madt) {
+		printk(KERN_WARNING PREFIX "%s not present\n",
+		       acpi_table_signatures[id]);
+		return -ENODEV;
+	}
+
+	madt_end = (unsigned long)madt + sdt_entry[i].size;
+
+	/* Parse all entries looking for a match. */
+
+	entry = (acpi_table_entry_header *)
+	    ((unsigned long)madt + madt_size);
+
+	while (((unsigned long)entry) + sizeof(acpi_table_entry_header) <
+	       madt_end) {
+		if (entry->type == entry_id
+		    && (!max_entries || count++ < max_entries))
+			if (handler(entry, madt_end))
+				return -EINVAL;
+
+		entry = (acpi_table_entry_header *)
+		    ((unsigned long)entry + entry->length);
+	}
+	if (max_entries && count > max_entries) {
+		printk(KERN_WARNING PREFIX "[%s:0x%02x] ignored %i entries of "
+		       "%i found\n", acpi_table_signatures[id], entry_id,
+		       count - max_entries, count);
+	}
+
+	return count;
+}
+
+static int __init
+acpi_table_parse_madt(enum acpi_madt_entry_id id,
+		      acpi_madt_entry_handler handler, unsigned int max_entries)
+{
+	return acpi_table_parse_madt_family(ACPI_APIC,
+					    sizeof(struct acpi_table_madt), id,
+					    handler, max_entries);
+}
+
+static int
+acpi_table_compute_checksum(void *table_pointer, unsigned long length)
+{
+	u8 *p = (u8 *) table_pointer;
+	unsigned long remains = length;
+	unsigned long sum = 0;
+
+	if (!p || !length)
+		return -EINVAL;
+
+	while (remains--)
+		sum += *p++;
+
+	return (sum & 0xFF);
+}
+
+
+/* from arch/i386/kernel/acpi/boot.c */
+static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
+
+#define MAX_MADT_ENTRIES	256
+u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] =
+    {[0 ... MAX_MADT_ENTRIES - 1] = 0xff };
+
+#define BAD_MADT_ENTRY(entry, end) (					    \
+		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
+		((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+
+static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) {
+    return 0;
+}
+
+static void acpi_table_print(struct acpi_table_header *header, unsigned long phys_addr)
+{
+	char *name = NULL;
+
+	if (!header)
+		return;
+
+	/* Some table signatures aren't good table names */
+
+	if (!strncmp((char *)&header->signature,
+		     acpi_table_signatures[ACPI_APIC],
+		     sizeof(header->signature))) {
+		name = "MADT";
+	} else if (!strncmp((char *)&header->signature,
+			    acpi_table_signatures[ACPI_FADT],
+			    sizeof(header->signature))) {
+		name = "FADT";
+	} else
+		name = header->signature;
+
+	printk(KERN_DEBUG PREFIX
+	       "%.4s (v%3.3d %6.6s %8.8s 0x%08x %.4s 0x%08x) @ 0x%p\n", name,
+	       header->revision, header->oem_id, header->oem_table_id,
+	       header->oem_revision, header->asl_compiler_id,
+	       header->asl_compiler_revision, (void *)phys_addr);
+}
+
+#if 0
+static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
+{
+	struct acpi_table_madt *madt = NULL;
+
+	if (!phys_addr || !size)
+		return -EINVAL;
+
+	madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
+	if (!madt) {
+		printk(KERN_WARNING PREFIX "Unable to map MADT\n");
+		return -ENODEV;
+	}
+
+	if (madt->lapic_address) {
+		acpi_lapic_addr = (u64) madt->lapic_address;
+
+		printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n",
+		       madt->lapic_address);
+	}
+
+	acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id);
+
+	return 0;
+}
+#endif
+
+static int __init
+acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end)
+{
+	struct acpi_table_lapic *processor = NULL;
+
+	processor = (struct acpi_table_lapic *)header;
+
+	if (BAD_MADT_ENTRY(processor, end))
+		return -EINVAL;
+
+	/* Record local apic id only when enabled */
+	if (processor->flags.enabled)
+		x86_acpiid_to_apicid[processor->acpi_id] = processor->id;
+
+	/*
+	 * We need to register disabled CPU as well to permit
+	 * counting disabled CPUs. This allows us to size
+	 * cpus_possible_map more accurately, to permit
+	 * to not preallocating memory for all NR_CPUS
+	 * when we use CPU hotplug.
+	 */
+	mp_register_lapic(processor->id,	/* APIC ID */
+			  processor->flags.enabled);	/* Enabled? */
+
+	return 0;
+}
+
+static int __init
+acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header,
+			  const unsigned long end)
+{
+	struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL;
+
+	lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header;
+
+	if (BAD_MADT_ENTRY(lapic_addr_ovr, end))
+		return -EINVAL;
+
+	acpi_lapic_addr = lapic_addr_ovr->address;
+
+	return 0;
+}
+
+static int __init
+acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end)
+{
+	struct acpi_table_lapic_nmi *lapic_nmi = NULL;
+
+	lapic_nmi = (struct acpi_table_lapic_nmi *)header;
+
+	if (BAD_MADT_ENTRY(lapic_nmi, end))
+		return -EINVAL;
+
+	if (lapic_nmi->lint != 1)
+		printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n");
+
+	return 0;
+}
+
+static void *__init
+acpi_scan_rsdp(unsigned long start, unsigned long length)
+{
+	unsigned long offset = 0;
+	unsigned long sig_len = sizeof("RSD PTR ") - 1;
+        char *ptr;
+
+
+	/*
+	 * Scan all 16-byte boundaries of the physical memory region for the
+	 * RSDP signature.
+	 */
+        ptr = mem_chunk(0, 4096 * 4096, "/dev/mem");
+        if (!ptr)
+            return 0;
+
+	for (offset = 0; offset < length; offset += 16) {
+		if (strncmp(ptr+start+offset, "RSD PTR ", sig_len))
+			continue;
+                free(ptr);
+		return (void *)start + offset;
+	}
+
+	return 0;
+}
+
+static void * __init acpi_find_rsdp(void)
+{
+	void *rsdp_phys = 0;
+
+	if (efi_enabled) {
+		if (efi.acpi20)
+			return __pa(efi.acpi20);
+		else if (efi.acpi)
+			return __pa(efi.acpi);
+	}
+	/*
+	 * Scan memory looking for the RSDP signature. First search EBDA (low
+	 * memory) paragraphs and then search upper memory (E0000-FFFFF).
+	 */
+	rsdp_phys = acpi_scan_rsdp(0, 0x400);
+	if (!rsdp_phys)
+		rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000);
+
+	return rsdp_phys;
+}
+
+static int __init acpi_parse_madt_lapic_entries(void)
+{
+	int count;
+
+	/* 
+	 * Note that the LAPIC address is obtained from the MADT (32-bit value)
+	 * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
+	 */
+
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR,
+				  acpi_parse_lapic_addr_ovr, 0);
+	if (count < 0) {
+		printk(KERN_ERR PREFIX
+		       "Error parsing LAPIC address override entry\n");
+		return count;
+	}
+
+#if 0
+	mp_register_lapic_address(acpi_lapic_addr);
+#endif
+
+	count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic,
+				      MAX_APICS);
+	if (!count) {
+		printk(KERN_ERR PREFIX "No LAPIC entries present\n");
+		/* TBD: Cleanup to allow fallback to MPS */
+		return -ENODEV;
+	} else if (count < 0) {
+		printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n");
+		/* TBD: Cleanup to allow fallback to MPS */
+		return count;
+	}
+
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0);
+	if (count < 0) {
+		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
+		/* TBD: Cleanup to allow fallback to MPS */
+		return count;
+	}
+	return 0;
+}
+
+static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
+{
+	struct acpi_table_header *header = NULL;
+	unsigned int i, id = 0;
+        unsigned long sdt_pa;	/* Physical Address */
+
+	if (!rsdp)
+		return -EINVAL;
+
+	/* First check XSDT (but only on ACPI 2.0-compatible systems) */
+
+	if ((rsdp->revision >= 2) &&
+	    (((struct acpi20_table_rsdp *)rsdp)->xsdt_address)) {
+
+		struct acpi_table_xsdt *mapped_xsdt = NULL;
+
+		sdt_pa = ((struct acpi20_table_rsdp *)rsdp)->xsdt_address;
+
+		/* map in just the header */
+		header = (struct acpi_table_header *)
+		    __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header));
+
+		if (!header) {
+			printk(KERN_WARNING PREFIX
+			       "Unable to map XSDT header\n");
+                        free(header);
+			return -ENODEV;
+		}
+
+		/* remap in the entire table before processing */
+		mapped_xsdt = (struct acpi_table_xsdt *)
+		    __acpi_map_table(sdt_pa, header->length);
+                free(header);
+		if (!mapped_xsdt) {
+			printk(KERN_WARNING PREFIX "Unable to map XSDT\n");
+                        free(mapped_xsdt);
+                        mapped_xsdt = NULL;
+			return -ENODEV;
+		}
+		header = &mapped_xsdt->header;
+
+		if (strncmp(header->signature, "XSDT", 4)) {
+			printk(KERN_WARNING PREFIX
+			       "XSDT signature incorrect\n");
+                        free(header);
+                        free(mapped_xsdt);
+                        mapped_xsdt = NULL;
+			return -ENODEV;
+		}
+
+		if (acpi_table_compute_checksum(header, header->length)) {
+			printk(KERN_WARNING PREFIX "Invalid XSDT checksum\n");
+                        free(header);
+                        free(mapped_xsdt);
+                        mapped_xsdt = NULL;
+			return -ENODEV;
+		}
+
+		sdt_count =
+		    (header->length - sizeof(struct acpi_table_header)) >> 3;
+		if (sdt_count > ACPI_MAX_TABLES) {
+			printk(KERN_WARNING PREFIX
+			       "Truncated %lu XSDT entries\n",
+			       (sdt_count - ACPI_MAX_TABLES));
+			sdt_count = ACPI_MAX_TABLES;
+		}
+
+		for (i = 0; i < sdt_count; i++)
+			sdt_entry[i].pa = (unsigned long)mapped_xsdt->entry[i];
+                free(header);
+	}
+
+	/* Then check RSDT */
+
+	else if (rsdp->rsdt_address) {
+
+		sdt_pa = rsdp->rsdt_address;
+
+		/* map in just the header */
+		header = (struct acpi_table_header *)
+		    __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header));
+		if (!header) {
+			printk(KERN_WARNING PREFIX
+			       "Unable to map RSDT header\n");
+                        free(header);
+			return -ENODEV;
+		}
+
+		/* remap in the entire table before processing */
+		mapped_rsdt = (struct acpi_table_rsdt *)
+		    __acpi_map_table((unsigned long)sdt_pa, header->length);
+                free(header);
+		if (!mapped_rsdt) {
+			printk(KERN_WARNING PREFIX "Unable to map RSDT\n");
+                        free(mapped_rsdt);
+                        mapped_rsdt = NULL;
+			return -ENODEV;
+		}
+		header = &mapped_rsdt->header;
+
+		if (strncmp(header->signature, "RSDT", 4)) {
+			printk(KERN_WARNING PREFIX
+			       "RSDT signature incorrect\n");
+                        free(header);
+                        free(mapped_rsdt);
+                        mapped_rsdt = NULL;
+			return -ENODEV;
+		}
+
+		if (acpi_table_compute_checksum(header, header->length)) {
+			printk(KERN_WARNING PREFIX "Invalid RSDT checksum\n");
+                        free(header);
+                        free(mapped_rsdt);
+                        mapped_rsdt = NULL;
+			return -ENODEV;
+		}
+
+		sdt_count =
+		    (header->length - sizeof(struct acpi_table_header)) >> 2;
+		if (sdt_count > ACPI_MAX_TABLES) {
+			printk(KERN_WARNING PREFIX
+			       "Truncated %lu RSDT entries\n",
+			       (sdt_count - ACPI_MAX_TABLES));
+			sdt_count = ACPI_MAX_TABLES;
+		}
+
+		for (i = 0; i < sdt_count; i++)
+			sdt_entry[i].pa = (unsigned long)mapped_rsdt->entry[i];
+                free(header);
+	}
+
+	else {
+		printk(KERN_WARNING PREFIX
+		       "No System Description Table (RSDT/XSDT) specified in RSDP\n");
+		return -ENODEV;
+	}
+
+	acpi_table_print(header, sdt_pa);
+
+	for (i = 0; i < sdt_count; i++) {
+                struct acpi_table_header *h1;
+
+		/* map in just the header */
+		header = (struct acpi_table_header *)
+		    __acpi_map_table(sdt_entry[i].pa,
+				     sizeof(struct acpi_table_header));
+		if (!header)
+			continue;
+
+		/* remap in the entire table before processing */
+                h1 = header;
+		header = (struct acpi_table_header *)
+		    __acpi_map_table(sdt_entry[i].pa, header->length);
+                free(h1);
+		if (!header)
+			continue;
+
+		acpi_table_print(header, sdt_entry[i].pa);
+
+		if (acpi_table_compute_checksum(header, header->length)) {
+			printk(KERN_WARNING "  >>> ERROR: Invalid checksum\n");
+			continue;
+		}
+
+		sdt_entry[i].size = header->length;
+
+		for (id = 0; id < ACPI_TABLE_COUNT; id++) {
+			if (!strncmp((char *)&header->signature,
+				     acpi_table_signatures[id],
+				     sizeof(header->signature))) {
+				sdt_entry[i].id = id;
+			}
+		}
+	}
+
+	/* 
+	 * The DSDT is *not* in the RSDT (why not? no idea.) but we want
+	 * to print its info, because this is what people usually blacklist
+	 * against. Unfortunately, we don't know the phys_addr, so just
+	 * print 0. Maybe no one will notice.
+	 */
+	if (!acpi_get_table_header_early(ACPI_DSDT, &header))
+		acpi_table_print(header, 0);
+
+        free(header);
+	return 0;
+}
+
+/*
+ * acpi_table_init()
+ *
+ * find RSDP, find and checksum SDT/XSDT.
+ * checksum all tables, print SDT/XSDT
+ * 
+ * result: sdt_entry[] is initialized
+ */
+
+static int acpi_table_init(void)
+{
+	void *rsdp_phys = 0;
+	int result = 0;
+
+	/* Locate and map the Root System Description Table (RSDP) */
+
+	rsdp_phys = acpi_find_rsdp();
+	if (!rsdp_phys) {
+		printk(KERN_ERR PREFIX "Unable to locate RSDP\n");
+		return -ENODEV;
+	}
+
+	rsdp = mem_chunk((unsigned long)rsdp_phys, sizeof (*rsdp), "/dev/mem");
+	if (!rsdp) {
+		printk(KERN_WARNING PREFIX "Unable to map RSDP\n");
+		return -ENODEV;
+	}
+
+	printk(KERN_DEBUG PREFIX
+	       "RSDP (v%3.3d %6.6s                                ) @ 0x%p\n",
+	       rsdp->revision, rsdp->oem_id, (void *)rsdp_phys);
+
+	if (rsdp->revision < 2)
+		result =
+		    acpi_table_compute_checksum(rsdp,
+						sizeof(struct acpi_table_rsdp));
+	else
+		result =
+		    acpi_table_compute_checksum(rsdp,
+						((struct acpi20_table_rsdp *)
+						 rsdp)->length);
+
+	if (result) {
+		printk(KERN_WARNING "  >>> ERROR: Invalid checksum\n");
+                free(rsdp);
+                rsdp = NULL;
+		return -ENODEV;
+	}
+
+	/* Locate and map the System Description table (RSDT/XSDT) */
+
+	result = acpi_table_get_sdt(rsdp);
+	if (result) {
+            free(rsdp);
+            rsdp = NULL;
+            return -ENODEV;
+        }
+
+	return 0;
+}
+
+/* original code */
+
+/* not actually from arch/i386/kernel/acpi/boot.c... */
+static char *__acpi_map_table(unsigned long phys, unsigned long size)
+{
+    char *ret = mem_chunk(phys, size, "/dev/mem");
+
+    return ret;
+}
+
+static int ncpus=0;
+
+static void mp_register_lapic(u8 id, u8 enabled)
+{
+    ncpus++;
+}
+
+int detectAcpiCpusAvailable(void)
+{
+    int result;
+
+    result = acpi_table_init();
+    if (result < 0) {
+        return 0;
+    }
+    acpi_parse_madt_lapic_entries();
+    if (mapped_xsdt)
+        free(mapped_xsdt);
+    if (mapped_rsdt)
+        free(mapped_rsdt);
+    free(rsdp);
+
+    return ncpus;
+}
+#else /* !defined(__i386__) && !defined(__x86_64__) */
+
+int detectAcpiCpusAvailable(void)
+{
+    return 0;
+}
+
+#endif
diff --git a/isys/acpi.h b/isys/acpi.h
new file mode 100644
index 000000000..f7a731177
--- /dev/null
+++ b/isys/acpi.h
@@ -0,0 +1,6 @@
+#ifndef ISYS_ACPI_H
+#define ISYS_ACPI_H 1
+
+extern int detectAcpiCpusAvailable(void);
+
+#endif /* ISYS_ACPI_H */
diff --git a/isys/acpi/actbl.h b/isys/acpi/actbl.h
new file mode 100644
index 000000000..ed53f842d
--- /dev/null
+++ b/isys/acpi/actbl.h
@@ -0,0 +1,316 @@
+/******************************************************************************
+ *
+ * Name: actbl.h - Table data structures defined in ACPI specification
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2006, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACTBL_H__
+#define __ACTBL_H__
+
+/*
+ * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * This is the only type that is even remotely portable. Anything else is not
+ * portable, so do not use any other bitfield types.
+ */
+
+/*
+ *  Values for description table header signatures
+ */
+#define RSDP_NAME               "RSDP"
+#define RSDP_SIG                "RSD PTR "	/* RSDT Pointer signature */
+#define APIC_SIG                "APIC"	/* Multiple APIC Description Table */
+#define DSDT_SIG                "DSDT"	/* Differentiated System Description Table */
+#define FADT_SIG                "FACP"	/* Fixed ACPI Description Table */
+#define FACS_SIG                "FACS"	/* Firmware ACPI Control Structure */
+#define PSDT_SIG                "PSDT"	/* Persistent System Description Table */
+#define RSDT_SIG                "RSDT"	/* Root System Description Table */
+#define XSDT_SIG                "XSDT"	/* Extended  System Description Table */
+#define SSDT_SIG                "SSDT"	/* Secondary System Description Table */
+#define SBST_SIG                "SBST"	/* Smart Battery Specification Table */
+#define SPIC_SIG                "SPIC"	/* IOSAPIC table */
+#define BOOT_SIG                "BOOT"	/* Boot table */
+
+#define GL_OWNED                0x02	/* Ownership of global lock is bit 1 */
+
+/*
+ * Common table types.  The base code can remain
+ * constant if the underlying tables are changed
+ */
+#define RSDT_DESCRIPTOR         struct rsdt_descriptor_rev2
+#define XSDT_DESCRIPTOR         struct xsdt_descriptor_rev2
+#define FACS_DESCRIPTOR         struct facs_descriptor_rev2
+#define FADT_DESCRIPTOR         struct fadt_descriptor_rev2
+
+#pragma pack(1)
+
+/*
+ * ACPI Version-independent tables
+ *
+ * NOTE: The tables that are specific to ACPI versions (1.0, 2.0, etc.)
+ * are in separate files.
+ */
+struct rsdp_descriptor {	/* Root System Descriptor Pointer */
+	char signature[8];	/* ACPI signature, contains "RSD PTR " */
+	u8 checksum;		/* ACPI 1.0 checksum */
+	char oem_id[6];		/* OEM identification */
+	u8 revision;		/* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
+	u32 rsdt_physical_address;	/* 32-bit physical address of the RSDT */
+	u32 length;		/* XSDT Length in bytes, including header */
+	u64 xsdt_physical_address;	/* 64-bit physical address of the XSDT */
+	u8 extended_checksum;	/* Checksum of entire table (ACPI 2.0) */
+	char reserved[3];	/* Reserved, must be zero */
+};
+
+struct acpi_common_facs {	/* Common FACS for internal use */
+	u32 *global_lock;
+	u64 *firmware_waking_vector;
+	u8 vector_width;
+};
+
+#define ACPI_TABLE_HEADER_DEF   /* ACPI common table header */ \
+	char                            signature[4];           /* ASCII table signature */\
+	u32                             length;                 /* Length of table in bytes, including this header */\
+	u8                              revision;               /* ACPI Specification minor version # */\
+	u8                              checksum;               /* To make sum of entire table == 0 */\
+	char                            oem_id[6];              /* ASCII OEM identification */\
+	char                            oem_table_id[8];        /* ASCII OEM table identification */\
+	u32                             oem_revision;           /* OEM revision number */\
+	char                            asl_compiler_id [4];    /* ASCII ASL compiler vendor ID */\
+	u32                             asl_compiler_revision;	/* ASL compiler version */
+
+struct acpi_table_header {	/* ACPI common table header */
+ACPI_TABLE_HEADER_DEF};
+
+/*
+ * MADT values and structures
+ */
+
+/* Values for MADT PCATCompat */
+
+#define DUAL_PIC                0
+#define MULTIPLE_APIC           1
+
+/* Master MADT */
+
+struct multiple_apic_table {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	u32 local_apic_address;	/* Physical address of local APIC */
+
+	/* Flags (32 bits) */
+
+	u8 PCATcompat:1;	/* 00:    System also has dual 8259s */
+	 u8:7;			/* 01-07: Reserved, must be zero */
+	u8 reserved1[3];	/* 08-31: Reserved, must be zero */
+};
+
+/* Values for Type in APIC_HEADER_DEF */
+
+#define APIC_PROCESSOR          0
+#define APIC_IO                 1
+#define APIC_XRUPT_OVERRIDE     2
+#define APIC_NMI                3
+#define APIC_LOCAL_NMI          4
+#define APIC_ADDRESS_OVERRIDE   5
+#define APIC_IO_SAPIC           6
+#define APIC_LOCAL_SAPIC        7
+#define APIC_XRUPT_SOURCE       8
+#define APIC_RESERVED           9	/* 9 and greater are reserved */
+
+/*
+ * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE)
+ */
+#define APIC_HEADER_DEF                     /* Common APIC sub-structure header */\
+	u8                              type; \
+	u8                              length;
+
+struct apic_header {
+APIC_HEADER_DEF};
+
+/* Values for MPS INTI flags */
+
+#define POLARITY_CONFORMS       0
+#define POLARITY_ACTIVE_HIGH    1
+#define POLARITY_RESERVED       2
+#define POLARITY_ACTIVE_LOW     3
+
+#define TRIGGER_CONFORMS        0
+#define TRIGGER_EDGE            1
+#define TRIGGER_RESERVED        2
+#define TRIGGER_LEVEL           3
+
+/* Common flag definitions (16 bits each) */
+
+#define MPS_INTI_FLAGS \
+	u8                              polarity        : 2;    /* 00-01: Polarity of APIC I/O input signals */\
+	u8                              trigger_mode    : 2;    /* 02-03: Trigger mode of APIC input signals */\
+	u8                                              : 4;    /* 04-07: Reserved, must be zero */\
+	u8                              reserved1;	/* 08-15: Reserved, must be zero */
+
+#define LOCAL_APIC_FLAGS \
+	u8                              processor_enabled: 1;   /* 00:    Processor is usable if set */\
+	u8                                              : 7;    /* 01-07: Reserved, must be zero */\
+	u8                              reserved2;	/* 08-15: Reserved, must be zero */
+
+/* Sub-structures for MADT */
+
+struct madt_processor_apic {
+	APIC_HEADER_DEF u8 processor_id;	/* ACPI processor id */
+	u8 local_apic_id;	/* Processor's local APIC id */
+ LOCAL_APIC_FLAGS};
+
+struct madt_io_apic {
+	APIC_HEADER_DEF u8 io_apic_id;	/* I/O APIC ID */
+	u8 reserved;		/* Reserved - must be zero */
+	u32 address;		/* APIC physical address */
+	u32 interrupt;		/* Global system interrupt where INTI
+				 * lines start */
+};
+
+struct madt_interrupt_override {
+	APIC_HEADER_DEF u8 bus;	/* 0 - ISA */
+	u8 source;		/* Interrupt source (IRQ) */
+	u32 interrupt;		/* Global system interrupt */
+ MPS_INTI_FLAGS};
+
+struct madt_nmi_source {
+	APIC_HEADER_DEF MPS_INTI_FLAGS u32 interrupt;	/* Global system interrupt */
+};
+
+struct madt_local_apic_nmi {
+	APIC_HEADER_DEF u8 processor_id;	/* ACPI processor id */
+	MPS_INTI_FLAGS u8 lint;	/* LINTn to which NMI is connected */
+};
+
+struct madt_address_override {
+	APIC_HEADER_DEF u16 reserved;	/* Reserved, must be zero */
+	u64 address;		/* APIC physical address */
+};
+
+struct madt_io_sapic {
+	APIC_HEADER_DEF u8 io_sapic_id;	/* I/O SAPIC ID */
+	u8 reserved;		/* Reserved, must be zero */
+	u32 interrupt_base;	/* Glocal interrupt for SAPIC start */
+	u64 address;		/* SAPIC physical address */
+};
+
+struct madt_local_sapic {
+	APIC_HEADER_DEF u8 processor_id;	/* ACPI processor id */
+	u8 local_sapic_id;	/* SAPIC ID */
+	u8 local_sapic_eid;	/* SAPIC EID */
+	u8 reserved[3];		/* Reserved, must be zero */
+	 LOCAL_APIC_FLAGS u32 processor_uID;	/* Numeric UID - ACPI 3.0 */
+	char processor_uIDstring[1];	/* String UID  - ACPI 3.0 */
+};
+
+struct madt_interrupt_source {
+	APIC_HEADER_DEF MPS_INTI_FLAGS u8 interrupt_type;	/* 1=PMI, 2=INIT, 3=corrected */
+	u8 processor_id;	/* Processor ID */
+	u8 processor_eid;	/* Processor EID */
+	u8 io_sapic_vector;	/* Vector value for PMI interrupts */
+	u32 interrupt;		/* Global system interrupt */
+	u32 flags;		/* Interrupt Source Flags */
+};
+
+/*
+ * Smart Battery
+ */
+struct smart_battery_table {
+	ACPI_TABLE_HEADER_DEF u32 warning_level;
+	u32 low_level;
+	u32 critical_level;
+};
+
+#pragma pack()
+
+/*
+ * ACPI Table information.  We save the table address, length,
+ * and type of memory allocation (mapped or allocated) for each
+ * table for 1) when we exit, and 2) if a new table is installed
+ */
+#define ACPI_MEM_NOT_ALLOCATED  0
+#define ACPI_MEM_ALLOCATED      1
+#define ACPI_MEM_MAPPED         2
+
+/* Definitions for the Flags bitfield member of struct acpi_table_support */
+
+#define ACPI_TABLE_SINGLE       0x00
+#define ACPI_TABLE_MULTIPLE     0x01
+#define ACPI_TABLE_EXECUTABLE   0x02
+
+#define ACPI_TABLE_ROOT         0x00
+#define ACPI_TABLE_PRIMARY      0x10
+#define ACPI_TABLE_SECONDARY    0x20
+#define ACPI_TABLE_ALL          0x30
+#define ACPI_TABLE_TYPE_MASK    0x30
+
+/* Data about each known table type */
+
+struct acpi_table_support {
+	char *name;
+	char *signature;
+	void **global_ptr;
+	u8 sig_length;
+	u8 flags;
+};
+
+/*
+ * Get the ACPI version-specific tables
+ */
+#include "actbl1.h"		/* Acpi 1.0 table definitions */
+#include "actbl2.h"		/* Acpi 2.0 table definitions */
+
+extern u8 acpi_fadt_is_v1;	/* is set to 1 if FADT is revision 1,
+				 * needed for certain workarounds */
+
+#pragma pack(1)
+/*
+ * High performance timer
+ */
+struct hpet_table {
+	ACPI_TABLE_HEADER_DEF u32 hardware_id;
+	struct acpi_generic_address base_address;
+	u8 hpet_number;
+	u16 clock_tick;
+	u8 attributes;
+};
+
+#pragma pack()
+
+#endif				/* __ACTBL_H__ */
diff --git a/isys/acpi/actbl1.h b/isys/acpi/actbl1.h
new file mode 100644
index 000000000..cd428d57a
--- /dev/null
+++ b/isys/acpi/actbl1.h
@@ -0,0 +1,135 @@
+/******************************************************************************
+ *
+ * Name: actbl1.h - ACPI 1.0 tables
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2006, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACTBL1_H__
+#define __ACTBL1_H__
+
+#pragma pack(1)
+
+/*
+ * ACPI 1.0 Root System Description Table (RSDT)
+ */
+struct rsdt_descriptor_rev1 {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	u32 table_offset_entry[1];	/* Array of pointers to ACPI tables */
+};
+
+/*
+ * ACPI 1.0 Firmware ACPI Control Structure (FACS)
+ */
+struct facs_descriptor_rev1 {
+	char signature[4];	/* ASCII table signature */
+	u32 length;		/* Length of structure in bytes */
+	u32 hardware_signature;	/* Hardware configuration signature */
+	u32 firmware_waking_vector;	/* ACPI OS waking vector */
+	u32 global_lock;	/* Global Lock */
+
+	/* Flags (32 bits) */
+
+	u8 S4bios_f:1;		/* 00:    S4BIOS support is present */
+	 u8:7;			/* 01-07: Reserved, must be zero */
+	u8 reserved1[3];	/* 08-31: Reserved, must be zero */
+
+	u8 reserved2[40];	/* Reserved, must be zero */
+};
+
+/*
+ * ACPI 1.0 Fixed ACPI Description Table (FADT)
+ */
+struct fadt_descriptor_rev1 {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	u32 firmware_ctrl;	/* Physical address of FACS */
+	u32 dsdt;		/* Physical address of DSDT */
+	u8 model;		/* System Interrupt Model */
+	u8 reserved1;		/* Reserved, must be zero */
+	u16 sci_int;		/* System vector of SCI interrupt */
+	u32 smi_cmd;		/* Port address of SMI command port */
+	u8 acpi_enable;		/* Value to write to smi_cmd to enable ACPI */
+	u8 acpi_disable;	/* Value to write to smi_cmd to disable ACPI */
+	u8 S4bios_req;		/* Value to write to SMI CMD to enter S4BIOS state */
+	u8 reserved2;		/* Reserved, must be zero */
+	u32 pm1a_evt_blk;	/* Port address of Power Mgt 1a acpi_event Reg Blk */
+	u32 pm1b_evt_blk;	/* Port address of Power Mgt 1b acpi_event Reg Blk */
+	u32 pm1a_cnt_blk;	/* Port address of Power Mgt 1a Control Reg Blk */
+	u32 pm1b_cnt_blk;	/* Port address of Power Mgt 1b Control Reg Blk */
+	u32 pm2_cnt_blk;	/* Port address of Power Mgt 2 Control Reg Blk */
+	u32 pm_tmr_blk;		/* Port address of Power Mgt Timer Ctrl Reg Blk */
+	u32 gpe0_blk;		/* Port addr of General Purpose acpi_event 0 Reg Blk */
+	u32 gpe1_blk;		/* Port addr of General Purpose acpi_event 1 Reg Blk */
+	u8 pm1_evt_len;		/* Byte length of ports at pm1_x_evt_blk */
+	u8 pm1_cnt_len;		/* Byte length of ports at pm1_x_cnt_blk */
+	u8 pm2_cnt_len;		/* Byte Length of ports at pm2_cnt_blk */
+	u8 pm_tm_len;		/* Byte Length of ports at pm_tm_blk */
+	u8 gpe0_blk_len;	/* Byte Length of ports at gpe0_blk */
+	u8 gpe1_blk_len;	/* Byte Length of ports at gpe1_blk */
+	u8 gpe1_base;		/* Offset in gpe model where gpe1 events start */
+	u8 reserved3;		/* Reserved, must be zero */
+	u16 plvl2_lat;		/* Worst case HW latency to enter/exit C2 state */
+	u16 plvl3_lat;		/* Worst case HW latency to enter/exit C3 state */
+	u16 flush_size;		/* Size of area read to flush caches */
+	u16 flush_stride;	/* Stride used in flushing caches */
+	u8 duty_offset;		/* Bit location of duty cycle field in p_cnt reg */
+	u8 duty_width;		/* Bit width of duty cycle field in p_cnt reg */
+	u8 day_alrm;		/* Index to day-of-month alarm in RTC CMOS RAM */
+	u8 mon_alrm;		/* Index to month-of-year alarm in RTC CMOS RAM */
+	u8 century;		/* Index to century in RTC CMOS RAM */
+	u8 reserved4[3];	/* Reserved, must be zero */
+
+	/* Flags (32 bits) */
+
+	u8 wb_invd:1;		/* 00:    The wbinvd instruction works properly */
+	u8 wb_invd_flush:1;	/* 01:    The wbinvd flushes but does not invalidate */
+	u8 proc_c1:1;		/* 02:    All processors support C1 state */
+	u8 plvl2_up:1;		/* 03:    C2 state works on MP system */
+	u8 pwr_button:1;	/* 04:    Power button is handled as a generic feature */
+	u8 sleep_button:1;	/* 05:    Sleep button is handled as a generic feature, or not present */
+	u8 fixed_rTC:1;		/* 06:    RTC wakeup stat not in fixed register space */
+	u8 rtcs4:1;		/* 07:    RTC wakeup stat not possible from S4 */
+	u8 tmr_val_ext:1;	/* 08:    tmr_val width is 32 bits (0 = 24 bits) */
+	 u8:7;			/* 09-15: Reserved, must be zero */
+	u8 reserved5[2];	/* 16-31: Reserved, must be zero */
+};
+
+#pragma pack()
+
+#endif				/* __ACTBL1_H__ */
diff --git a/isys/acpi/actbl2.h b/isys/acpi/actbl2.h
new file mode 100644
index 000000000..dfc7ac109
--- /dev/null
+++ b/isys/acpi/actbl2.h
@@ -0,0 +1,277 @@
+/******************************************************************************
+ *
+ * Name: actbl2.h - ACPI Specification Revision 2.0 Tables
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2006, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACTBL2_H__
+#define __ACTBL2_H__
+
+/*
+ * Prefered Power Management Profiles
+ */
+#define PM_UNSPECIFIED                  0
+#define PM_DESKTOP                      1
+#define PM_MOBILE                       2
+#define PM_WORKSTATION                  3
+#define PM_ENTERPRISE_SERVER            4
+#define PM_SOHO_SERVER                  5
+#define PM_APPLIANCE_PC                 6
+
+/*
+ * ACPI Boot Arch Flags
+ */
+#define BAF_LEGACY_DEVICES              0x0001
+#define BAF_8042_KEYBOARD_CONTROLLER    0x0002
+
+#define FADT2_REVISION_ID               3
+#define FADT2_MINUS_REVISION_ID         2
+
+#pragma pack(1)
+
+/*
+ * ACPI 2.0 Root System Description Table (RSDT)
+ */
+struct rsdt_descriptor_rev2 {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	u32 table_offset_entry[1];	/* Array of pointers to ACPI tables */
+};
+
+/*
+ * ACPI 2.0 Extended System Description Table (XSDT)
+ */
+struct xsdt_descriptor_rev2 {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	u64 table_offset_entry[1];	/* Array of pointers to ACPI tables */
+};
+
+/*
+ * ACPI 2.0 Firmware ACPI Control Structure (FACS)
+ */
+struct facs_descriptor_rev2 {
+	char signature[4];	/* ASCII table signature */
+	u32 length;		/* Length of structure, in bytes */
+	u32 hardware_signature;	/* Hardware configuration signature */
+	u32 firmware_waking_vector;	/* 32-bit physical address of the Firmware Waking Vector. */
+	u32 global_lock;	/* Global Lock used to synchronize access to shared hardware resources */
+
+	/* Flags (32 bits) */
+
+	u8 S4bios_f:1;		/* 00:    S4BIOS support is present */
+	 u8:7;			/* 01-07: Reserved, must be zero */
+	u8 reserved1[3];	/* 08-31: Reserved, must be zero */
+
+	u64 xfirmware_waking_vector;	/* 64-bit physical address of the Firmware Waking Vector. */
+	u8 version;		/* Version of this table */
+	u8 reserved3[31];	/* Reserved, must be zero */
+};
+
+/*
+ * ACPI 2.0+ Generic Address Structure (GAS)
+ */
+struct acpi_generic_address {
+	u8 address_space_id;	/* Address space where struct or register exists. */
+	u8 register_bit_width;	/* Size in bits of given register */
+	u8 register_bit_offset;	/* Bit offset within the register */
+	u8 access_width;	/* Minimum Access size (ACPI 3.0) */
+	u64 address;		/* 64-bit address of struct or register */
+};
+
+#define FADT_REV2_COMMON \
+	u32                             V1_firmware_ctrl;   /* 32-bit physical address of FACS */ \
+	u32                             V1_dsdt;            /* 32-bit physical address of DSDT */ \
+	u8                              reserved1;          /* System Interrupt Model isn't used in ACPI 2.0*/ \
+	u8                              prefer_PM_profile;  /* Conveys preferred power management profile to OSPM. */ \
+	u16                             sci_int;            /* System vector of SCI interrupt */ \
+	u32                             smi_cmd;            /* Port address of SMI command port */ \
+	u8                              acpi_enable;        /* Value to write to smi_cmd to enable ACPI */ \
+	u8                              acpi_disable;       /* Value to write to smi_cmd to disable ACPI */ \
+	u8                              S4bios_req;         /* Value to write to SMI CMD to enter S4BIOS state */ \
+	u8                              pstate_cnt;         /* Processor performance state control*/ \
+	u32                             V1_pm1a_evt_blk;    /* Port address of Power Mgt 1a acpi_event Reg Blk */ \
+	u32                             V1_pm1b_evt_blk;    /* Port address of Power Mgt 1b acpi_event Reg Blk */ \
+	u32                             V1_pm1a_cnt_blk;    /* Port address of Power Mgt 1a Control Reg Blk */ \
+	u32                             V1_pm1b_cnt_blk;    /* Port address of Power Mgt 1b Control Reg Blk */ \
+	u32                             V1_pm2_cnt_blk;     /* Port address of Power Mgt 2 Control Reg Blk */ \
+	u32                             V1_pm_tmr_blk;      /* Port address of Power Mgt Timer Ctrl Reg Blk */ \
+	u32                             V1_gpe0_blk;        /* Port addr of General Purpose acpi_event 0 Reg Blk */ \
+	u32                             V1_gpe1_blk;        /* Port addr of General Purpose acpi_event 1 Reg Blk */ \
+	u8                              pm1_evt_len;        /* Byte length of ports at pm1_x_evt_blk */ \
+	u8                              pm1_cnt_len;        /* Byte length of ports at pm1_x_cnt_blk */ \
+	u8                              pm2_cnt_len;        /* Byte Length of ports at pm2_cnt_blk */ \
+	u8                              pm_tm_len;          /* Byte Length of ports at pm_tm_blk */ \
+	u8                              gpe0_blk_len;       /* Byte Length of ports at gpe0_blk */ \
+	u8                              gpe1_blk_len;       /* Byte Length of ports at gpe1_blk */ \
+	u8                              gpe1_base;          /* Offset in gpe model where gpe1 events start */ \
+	u8                              cst_cnt;            /* Support for the _CST object and C States change notification.*/ \
+	u16                             plvl2_lat;          /* Worst case HW latency to enter/exit C2 state */ \
+	u16                             plvl3_lat;          /* Worst case HW latency to enter/exit C3 state */ \
+	u16                             flush_size;         /* Number of flush strides that need to be read */ \
+	u16                             flush_stride;       /* Processor's memory cache line width, in bytes */ \
+	u8                              duty_offset;        /* Processor's duty cycle index in processor's P_CNT reg*/ \
+	u8                              duty_width;         /* Processor's duty cycle value bit width in P_CNT register.*/ \
+	u8                              day_alrm;           /* Index to day-of-month alarm in RTC CMOS RAM */ \
+	u8                              mon_alrm;           /* Index to month-of-year alarm in RTC CMOS RAM */ \
+	u8                              century;            /* Index to century in RTC CMOS RAM */ \
+	u16                             iapc_boot_arch;     /* IA-PC Boot Architecture Flags. See Table 5-10 for description*/
+
+/*
+ * ACPI 2.0+ Fixed ACPI Description Table (FADT)
+ */
+struct fadt_descriptor_rev2 {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	FADT_REV2_COMMON u8 reserved2;	/* Reserved, must be zero */
+
+	/* Flags (32 bits) */
+
+	u8 wb_invd:1;		/* 00:    The wbinvd instruction works properly */
+	u8 wb_invd_flush:1;	/* 01:    The wbinvd flushes but does not invalidate */
+	u8 proc_c1:1;		/* 02:    All processors support C1 state */
+	u8 plvl2_up:1;		/* 03:    C2 state works on MP system */
+	u8 pwr_button:1;	/* 04:    Power button is handled as a generic feature */
+	u8 sleep_button:1;	/* 05:    Sleep button is handled as a generic feature, or not present */
+	u8 fixed_rTC:1;		/* 06:    RTC wakeup stat not in fixed register space */
+	u8 rtcs4:1;		/* 07:    RTC wakeup stat not possible from S4 */
+	u8 tmr_val_ext:1;	/* 08:    tmr_val is 32 bits 0=24-bits */
+	u8 dock_cap:1;		/* 09:    Docking supported */
+	u8 reset_reg_sup:1;	/* 10:    System reset via the FADT RESET_REG supported */
+	u8 sealed_case:1;	/* 11:    No internal expansion capabilities and case is sealed */
+	u8 headless:1;		/* 12:    No local video capabilities or local input devices */
+	u8 cpu_sw_sleep:1;	/* 13:    Must execute native instruction after writing SLP_TYPx register */
+
+	u8 pci_exp_wak:1;	/* 14:    System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
+	u8 use_platform_clock:1;	/* 15:    OSPM should use platform-provided timer (ACPI 3.0) */
+	u8 S4rtc_sts_valid:1;	/* 16:    Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
+	u8 remote_power_on_capable:1;	/* 17:    System is compatible with remote power on (ACPI 3.0) */
+	u8 force_apic_cluster_model:1;	/* 18:    All local APICs must use cluster model (ACPI 3.0) */
+	u8 force_apic_physical_destination_mode:1;	/* 19:   all local x_aPICs must use physical dest mode (ACPI 3.0) */
+	 u8:4;			/* 20-23: Reserved, must be zero */
+	u8 reserved3;		/* 24-31: Reserved, must be zero */
+
+	struct acpi_generic_address reset_register;	/* Reset register address in GAS format */
+	u8 reset_value;		/* Value to write to the reset_register port to reset the system */
+	u8 reserved4[3];	/* These three bytes must be zero */
+	u64 xfirmware_ctrl;	/* 64-bit physical address of FACS */
+	u64 Xdsdt;		/* 64-bit physical address of DSDT */
+	struct acpi_generic_address xpm1a_evt_blk;	/* Extended Power Mgt 1a acpi_event Reg Blk address */
+	struct acpi_generic_address xpm1b_evt_blk;	/* Extended Power Mgt 1b acpi_event Reg Blk address */
+	struct acpi_generic_address xpm1a_cnt_blk;	/* Extended Power Mgt 1a Control Reg Blk address */
+	struct acpi_generic_address xpm1b_cnt_blk;	/* Extended Power Mgt 1b Control Reg Blk address */
+	struct acpi_generic_address xpm2_cnt_blk;	/* Extended Power Mgt 2 Control Reg Blk address */
+	struct acpi_generic_address xpm_tmr_blk;	/* Extended Power Mgt Timer Ctrl Reg Blk address */
+	struct acpi_generic_address xgpe0_blk;	/* Extended General Purpose acpi_event 0 Reg Blk address */
+	struct acpi_generic_address xgpe1_blk;	/* Extended General Purpose acpi_event 1 Reg Blk address */
+};
+
+/* "Down-revved" ACPI 2.0 FADT descriptor */
+
+struct fadt_descriptor_rev2_minus {
+	ACPI_TABLE_HEADER_DEF	/* ACPI common table header */
+	FADT_REV2_COMMON u8 reserved2;	/* Reserved, must be zero */
+	u32 flags;
+	struct acpi_generic_address reset_register;	/* Reset register address in GAS format */
+	u8 reset_value;		/* Value to write to the reset_register port to reset the system. */
+	u8 reserved7[3];	/* Reserved, must be zero */
+};
+
+/* ECDT - Embedded Controller Boot Resources Table */
+
+struct ec_boot_resources {
+	ACPI_TABLE_HEADER_DEF struct acpi_generic_address ec_control;	/* Address of EC command/status register */
+	struct acpi_generic_address ec_data;	/* Address of EC data register */
+	u32 uid;		/* Unique ID - must be same as the EC _UID method */
+	u8 gpe_bit;		/* The GPE for the EC */
+	u8 ec_id[1];		/* Full namepath of the EC in the ACPI namespace */
+};
+
+/* SRAT - System Resource Affinity Table */
+
+struct static_resource_alloc {
+	u8 type;
+	u8 length;
+	u8 proximity_domain_lo;
+	u8 apic_id;
+
+	/* Flags (32 bits) */
+
+	u8 enabled:1;		/* 00:    Use affinity structure */
+	 u8:7;			/* 01-07: Reserved, must be zero */
+	u8 reserved3[3];	/* 08-31: Reserved, must be zero */
+
+	u8 local_sapic_eid;
+	u8 proximity_domain_hi[3];
+	u32 reserved4;		/* Reserved, must be zero */
+};
+
+struct memory_affinity {
+	u8 type;
+	u8 length;
+	u32 proximity_domain;
+	u16 reserved3;
+	u64 base_address;
+	u64 address_length;
+	u32 reserved4;
+
+	/* Flags (32 bits) */
+
+	u8 enabled:1;		/* 00:    Use affinity structure */
+	u8 hot_pluggable:1;	/* 01:    Memory region is hot pluggable */
+	u8 non_volatile:1;	/* 02:    Memory is non-volatile */
+	 u8:5;			/* 03-07: Reserved, must be zero */
+	u8 reserved5[3];	/* 08-31: Reserved, must be zero */
+
+	u64 reserved6;		/* Reserved, must be zero */
+};
+
+struct system_resource_affinity {
+	ACPI_TABLE_HEADER_DEF u32 reserved1;	/* Must be value '1' */
+	u64 reserved2;		/* Reserved, must be zero */
+};
+
+/* SLIT - System Locality Distance Information Table */
+
+struct system_locality_info {
+	ACPI_TABLE_HEADER_DEF u64 locality_count;
+	u8 entry[1][1];
+};
+
+#pragma pack()
+
+#endif				/* __ACTBL2_H__ */