[rtems-libbsd commit] i386: Port to RTEMS

Sebastian Huber sebh at rtems.org
Mon Feb 10 09:49:55 UTC 2020


Module:    rtems-libbsd
Branch:    master
Commit:    af291fa3a04222bb7fe99b7ce1eab3036e529f29
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=af291fa3a04222bb7fe99b7ce1eab3036e529f29

Author:    Jan Sommer <jan.sommer at dlr.de>
Date:      Fri Feb  7 12:40:13 2020 +0100

i386: Port to RTEMS

- Update imported files to compile rtems-libbsd for i386 based BSPs
- Currently does not support the option "dev_nic_e1000 = on"

---

 freebsd/sbin/sysctl/sysctl.c               |    8 +
 freebsd/sys/dev/pci/pci_pci.c              |    2 +
 freebsd/sys/i386/i386/legacy.c             |  381 ----------
 freebsd/sys/i386/include/machine/cpufunc.h |    2 +
 freebsd/sys/sys/mbuf.h                     |    2 +
 freebsd/sys/x86/pci/pci_bus.c              |    4 +
 freebsd/sys/x86/x86/legacy.c               |   14 +
 rtemsbsd/i386/include/machine/clock.h      |    2 +
 rtemsbsd/include/x86/bus.h                 | 1109 +++++++++++++++++++++++++++
 rtemsbsd/include/x86/legacyvar.h           |    1 +
 rtemsbsd/include/x86/metadata.h            |    1 +
 rtemsbsd/include/x86/specialreg.h          | 1143 ++++++++++++++++++++++++++++
 rtemsbsd/include/x86/x86_var.h             |  145 ++++
 13 files changed, 2433 insertions(+), 381 deletions(-)

diff --git a/freebsd/sbin/sysctl/sysctl.c b/freebsd/sbin/sysctl/sysctl.c
index 30ebe5f..035c1db 100644
--- a/freebsd/sbin/sysctl/sysctl.c
+++ b/freebsd/sbin/sysctl/sysctl.c
@@ -69,7 +69,9 @@ static const char rcsid[] =
 #endif
 
 #if defined(__amd64__) || defined(__i386__)
+#ifndef __rtems__
 #include <machine/pc/bios.h>
+#endif /* __rtems__ */
 #endif
 
 #include <assert.h>
@@ -832,6 +834,7 @@ S_efi_map(size_t l2, void *p)
 #endif
 
 #if defined(__amd64__) || defined(__i386__)
+#ifndef __rtems__
 static int
 S_bios_smap_xattr(size_t l2, void *p)
 {
@@ -850,6 +853,7 @@ S_bios_smap_xattr(size_t l2, void *p)
 		    (uintmax_t)smap->length);
 	return (0);
 }
+#endif /* __rtems__ */
 #endif
 
 static int
@@ -1061,7 +1065,11 @@ show_var(int *oid, int nlen)
 #endif
 #if defined(__amd64__) || defined(__i386__)
 		else if (strcmp(fmt, "S,bios_smap_xattr") == 0)
+#ifndef __rtems__
 			func = S_bios_smap_xattr;
+#else /* __rtems__ */
+			func = NULL;
+#endif /* __rtems__ */
 #endif
 		else {
 			func = NULL;
diff --git a/freebsd/sys/dev/pci/pci_pci.c b/freebsd/sys/dev/pci/pci_pci.c
index cdcba15..7b048c8 100644
--- a/freebsd/sys/dev/pci/pci_pci.c
+++ b/freebsd/sys/dev/pci/pci_pci.c
@@ -1593,6 +1593,7 @@ pcib_attach_common(device_t dev)
 	sc->flags |= PCIB_SUBTRACTIVE;
 	break;
 
+#ifndef __rtems__
 #if !(defined(NEW_PCIB) && defined(PCI_RES_BUS))
     /* Compaq R3000 BIOS sets wrong subordinate bus number. */
     case 0x00dd10de:
@@ -1620,6 +1621,7 @@ pcib_attach_common(device_t dev)
 	    break;
 	}
 #endif
+#endif /* __rtems__ */
     }
 
     if (pci_msi_device_blacklisted(dev))
diff --git a/freebsd/sys/i386/i386/legacy.c b/freebsd/sys/i386/i386/legacy.c
deleted file mode 100644
index 50fa9aa..0000000
--- a/freebsd/sys/i386/i386/legacy.c
+++ /dev/null
@@ -1,381 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-/*-
- * Copyright 1998 Massachusetts Institute of Technology
- *
- * Permission to use, copy, modify, and distribute this software and
- * its documentation for any purpose and without fee is hereby
- * granted, provided that both the above copyright notice and this
- * permission notice appear in all copies, that both the above
- * copyright notice and this permission notice appear in all
- * supporting documentation, and that the name of M.I.T. not be used
- * in advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.  M.I.T. makes
- * no representations about the suitability of this software for any
- * purpose.  It is provided "as is" without express or implied
- * warranty.
- * 
- * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
- * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
- * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * 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 DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * This code implements a system driver for legacy systems that do not
- * support ACPI or when ACPI support is not present in the kernel.
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/cpu.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/module.h>
-#include <machine/bus.h>
-#include <sys/pcpu.h>
-#include <sys/rman.h>
-#include <sys/smp.h>
-
-#include <rtems/bsd/local/opt_mca.h>
-#ifdef DEV_MCA
-#include <i386/bios/mca_machdep.h>
-#endif
-
-#include <machine/clock.h>
-#include <machine/legacyvar.h>
-#include <machine/resource.h>
-
-static MALLOC_DEFINE(M_LEGACYDEV, "legacydrv", "legacy system device");
-struct legacy_device {
-	int	lg_pcibus;
-	int	lg_pcislot;
-	int	lg_pcifunc;
-};
-
-#define DEVTOAT(dev)	((struct legacy_device *)device_get_ivars(dev))
-
-static	int legacy_probe(device_t);
-static	int legacy_attach(device_t);
-static	int legacy_print_child(device_t, device_t);
-static device_t legacy_add_child(device_t bus, u_int order, const char *name,
-				int unit);
-static	int legacy_read_ivar(device_t, device_t, int, uintptr_t *);
-static	int legacy_write_ivar(device_t, device_t, int, uintptr_t);
-
-static device_method_t legacy_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,		legacy_probe),
-	DEVMETHOD(device_attach,	legacy_attach),
-	DEVMETHOD(device_detach,	bus_generic_detach),
-	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
-	DEVMETHOD(device_suspend,	bus_generic_suspend),
-	DEVMETHOD(device_resume,	bus_generic_resume),
-
-	/* Bus interface */
-	DEVMETHOD(bus_print_child,	legacy_print_child),
-	DEVMETHOD(bus_add_child,	legacy_add_child),
-	DEVMETHOD(bus_read_ivar,	legacy_read_ivar),
-	DEVMETHOD(bus_write_ivar,	legacy_write_ivar),
-	DEVMETHOD(bus_alloc_resource,	bus_generic_alloc_resource),
-	DEVMETHOD(bus_adjust_resource,	bus_generic_adjust_resource),
-	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
-	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
-	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
-	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
-	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
-
-	{ 0, 0 }
-};
-
-static driver_t legacy_driver = {
-	"legacy",
-	legacy_methods,
-	1,			/* no softc */
-};
-static devclass_t legacy_devclass;
-
-DRIVER_MODULE(legacy, nexus, legacy_driver, legacy_devclass, 0, 0);
-
-static int
-legacy_probe(device_t dev)
-{
-
-	device_set_desc(dev, "legacy system");
-	device_quiet(dev);
-	return (0);
-}
-
-static int
-legacy_attach(device_t dev)
-{
-	device_t child;
-
-	/*
-	 * Let our child drivers identify any child devices that they
-	 * can find.  Once that is done attach any devices that we
-	 * found.
-	 */
-	bus_generic_probe(dev);
-	bus_generic_attach(dev);
-
-#ifndef PC98
-	/*
-	 * If we didn't see EISA or ISA on a pci bridge, create some
-	 * connection points now so they show up "on motherboard".
-	 */
-	if (!devclass_get_device(devclass_find("eisa"), 0)) {
-		child = BUS_ADD_CHILD(dev, 0, "eisa", 0);
-		if (child == NULL)
-			panic("legacy_attach eisa");
-		device_probe_and_attach(child);
-	}
-#endif
-#ifdef DEV_MCA
-	if (MCA_system && !devclass_get_device(devclass_find("mca"), 0)) {
-        	child = BUS_ADD_CHILD(dev, 0, "mca", 0);
-        	if (child == 0)
-                	panic("legacy_probe mca");
-		device_probe_and_attach(child);
-	}
-#endif
-	if (!devclass_get_device(devclass_find("isa"), 0)) {
-		child = BUS_ADD_CHILD(dev, 0, "isa", 0);
-		if (child == NULL)
-			panic("legacy_attach isa");
-		device_probe_and_attach(child);
-	}
-
-	return 0;
-}
-
-static int
-legacy_print_child(device_t bus, device_t child)
-{
-	struct legacy_device *atdev = DEVTOAT(child);
-	int retval = 0;
-
-	retval += bus_print_child_header(bus, child);
-	if (atdev->lg_pcibus != -1)
-		retval += printf(" pcibus %d", atdev->lg_pcibus);
-	retval += printf(" on motherboard\n");	/* XXX "motherboard", ick */
-
-	return (retval);
-}
-
-static device_t
-legacy_add_child(device_t bus, u_int order, const char *name, int unit)
-{
-	device_t child;
-	struct legacy_device *atdev;
-
-	atdev = malloc(sizeof(struct legacy_device), M_LEGACYDEV,
-	    M_NOWAIT | M_ZERO);
-	if (atdev == NULL)
-		return(NULL);
-	atdev->lg_pcibus = -1;
-	atdev->lg_pcislot = -1;
-	atdev->lg_pcifunc = -1;
-
-	child = device_add_child_ordered(bus, order, name, unit);
-	if (child == NULL)
-		free(atdev, M_LEGACYDEV);
-	else
-		/* should we free this in legacy_child_detached? */
-		device_set_ivars(child, atdev);
-
-	return (child);
-}
-
-static int
-legacy_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
-{
-	struct legacy_device *atdev = DEVTOAT(child);
-
-	switch (which) {
-	case LEGACY_IVAR_PCIDOMAIN:
-		*result = 0;
-		break;
-	case LEGACY_IVAR_PCIBUS:
-		*result = atdev->lg_pcibus;
-		break;
-	case LEGACY_IVAR_PCISLOT:
-		*result = atdev->lg_pcislot;
-		break;
-	case LEGACY_IVAR_PCIFUNC:
-		*result = atdev->lg_pcifunc;
-		break;
-	default:
-		return ENOENT;
-	}
-	return 0;
-}
-	
-
-static int
-legacy_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
-{
-	struct legacy_device *atdev = DEVTOAT(child);
-
-	switch (which) {
-	case LEGACY_IVAR_PCIDOMAIN:
-		return EINVAL;
-	case LEGACY_IVAR_PCIBUS:
-		atdev->lg_pcibus = value;
-		break;
-	case LEGACY_IVAR_PCISLOT:
-		atdev->lg_pcislot = value;
-		break;
-	case LEGACY_IVAR_PCIFUNC:
-		atdev->lg_pcifunc = value;
-		break;
-	default:
-		return ENOENT;
-	}
-	return 0;
-}
-
-/*
- * Legacy CPU attachment when ACPI is not available.  Drivers like
- * cpufreq(4) hang off this.
- */
-static void	cpu_identify(driver_t *driver, device_t parent);
-static int	cpu_read_ivar(device_t dev, device_t child, int index,
-		    uintptr_t *result);
-static device_t cpu_add_child(device_t bus, u_int order, const char *name,
-		    int unit);
-static struct resource_list *cpu_get_rlist(device_t dev, device_t child);
-
-struct cpu_device {
-	struct resource_list cd_rl;
-#ifndef __rtems__
-	struct pcpu *cd_pcpu;
-#endif /* __rtems__ */
-};
-
-static device_method_t cpu_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_identify,	cpu_identify),
-	DEVMETHOD(device_probe,		bus_generic_probe),
-	DEVMETHOD(device_attach,	bus_generic_attach),
-	DEVMETHOD(device_detach,	bus_generic_detach),
-	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
-	DEVMETHOD(device_suspend,	bus_generic_suspend),
-	DEVMETHOD(device_resume,	bus_generic_resume),
-
-	/* Bus interface */
-	DEVMETHOD(bus_add_child,	cpu_add_child),
-	DEVMETHOD(bus_read_ivar,	cpu_read_ivar),
-	DEVMETHOD(bus_get_resource_list, cpu_get_rlist),
-	DEVMETHOD(bus_get_resource,	bus_generic_rl_get_resource),
-	DEVMETHOD(bus_set_resource,	bus_generic_rl_set_resource),
-	DEVMETHOD(bus_alloc_resource,	bus_generic_rl_alloc_resource),
-	DEVMETHOD(bus_release_resource,	bus_generic_rl_release_resource),
-	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
-	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
-	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
-	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
-
-	DEVMETHOD_END
-};
-
-static driver_t cpu_driver = {
-	"cpu",
-	cpu_methods,
-	1,		/* no softc */
-};
-static devclass_t cpu_devclass;
-DRIVER_MODULE(cpu, legacy, cpu_driver, cpu_devclass, 0, 0);
-
-static void
-cpu_identify(driver_t *driver, device_t parent)
-{
-	device_t child;
-	int i;
-
-	/*
-	 * Attach a cpuX device for each CPU.  We use an order of 150
-	 * so that these devices are attached after the Host-PCI
-	 * bridges (which are added at order 100).
-	 */
-	CPU_FOREACH(i) {
-		child = BUS_ADD_CHILD(parent, 150, "cpu", i);
-		if (child == NULL)
-			panic("legacy_attach cpu");
-	}
-}
-
-static device_t
-cpu_add_child(device_t bus, u_int order, const char *name, int unit)
-{
-	struct cpu_device *cd;
-	device_t child;
-#ifndef __rtems__
-	struct pcpu *pc;
-#endif /* __rtems__ */
-
-	if ((cd = malloc(sizeof(*cd), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL)
-		return (NULL);
-
-	resource_list_init(&cd->cd_rl);
-#ifndef __rtems__
-	pc = pcpu_find(device_get_unit(bus));
-	cd->cd_pcpu = pc;
-#endif /* __rtems__ */
-
-	child = device_add_child_ordered(bus, order, name, unit);
-	if (child != NULL) {
-#ifndef __rtems__
-		pc->pc_device = child;
-#endif /* __rtems__ */
-		device_set_ivars(child, cd);
-	} else
-		free(cd, M_DEVBUF);
-	return (child);
-}
-
-static struct resource_list *
-cpu_get_rlist(device_t dev, device_t child)
-{
-	struct cpu_device *cpdev;
-
-	cpdev = device_get_ivars(child);
-	return (&cpdev->cd_rl);
-}
-
-static int
-cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
-{
-	struct cpu_device *cpdev;
-
-	switch (index) {
-#ifndef __rtems__
-	case CPU_IVAR_PCPU:
-		cpdev = device_get_ivars(child);
-		*result = (uintptr_t)cpdev->cd_pcpu;
-		break;
-	case CPU_IVAR_NOMINAL_MHZ:
-		if (tsc_is_invariant) {
-			*result = (uintptr_t)(atomic_load_acq_64(&tsc_freq) /
-			    1000000);
-			break;
-		}
-		/* FALLTHROUGH */
-#endif /* __rtems__ */
-	default:
-		return (ENOENT);
-	}
-	return (0);
-}
diff --git a/freebsd/sys/i386/include/machine/cpufunc.h b/freebsd/sys/i386/include/machine/cpufunc.h
index a029da3..e50ef9d 100644
--- a/freebsd/sys/i386/include/machine/cpufunc.h
+++ b/freebsd/sys/i386/include/machine/cpufunc.h
@@ -233,11 +233,13 @@ fls(int mask)
 
 #define	HAVE_INLINE_FLSL
 
+#ifndef __rtems__
 static __inline __pure2 int
 flsl(long mask)
 {
 	return (fls((int)mask));
 }
+#endif /* __rtems__ */
 
 #endif /* _KERNEL */
 
diff --git a/freebsd/sys/sys/mbuf.h b/freebsd/sys/sys/mbuf.h
index ba2e187..bf48acb 100644
--- a/freebsd/sys/sys/mbuf.h
+++ b/freebsd/sys/sys/mbuf.h
@@ -348,6 +348,7 @@ struct mbuf_ext_pgs {
 	vm_paddr_t	pa[MBUF_PEXT_MAX_PGS];	/* phys addrs of pages */
 	char		hdr[MBUF_PEXT_HDR_LEN];	/* TLS header */
 	struct ktls_session *tls;		/* TLS session */
+#if defined(__rtems__) && !defined(__i386__)
 #if defined(__i386__) || \
     (defined(__powerpc__) && !defined(__powerpc64__) && defined(BOOKE))
 	/*
@@ -356,6 +357,7 @@ struct mbuf_ext_pgs {
 	 */
 	uint32_t	pad;
 #endif
+#endif /* __rtems__ && !__i386__ */
 	union {
 		char	trail[MBUF_PEXT_TRAIL_LEN]; /* TLS trailer */
 		struct {
diff --git a/freebsd/sys/x86/pci/pci_bus.c b/freebsd/sys/x86/pci/pci_bus.c
index 0db41c1..ff4ef68 100644
--- a/freebsd/sys/x86/pci/pci_bus.c
+++ b/freebsd/sys/x86/pci/pci_bus.c
@@ -49,7 +49,11 @@ __FBSDID("$FreeBSD$");
 #ifdef CPU_ELAN
 #include <machine/md_var.h>
 #endif
+#ifdef __rtems__
+#include <machine/legacyvar.h>
+#else /* __rtems__ */
 #include <x86/legacyvar.h>
+#endif /* __rtems__ */
 #include <machine/pci_cfgreg.h>
 #include <machine/resource.h>
 
diff --git a/freebsd/sys/x86/x86/legacy.c b/freebsd/sys/x86/x86/legacy.c
index 4c2174b..9297f1f 100644
--- a/freebsd/sys/x86/x86/legacy.c
+++ b/freebsd/sys/x86/x86/legacy.c
@@ -115,6 +115,7 @@ legacy_probe(device_t dev)
 	return (0);
 }
 
+#ifndef __rtems__
 /*
  * Grope around in the PCI config space to see if this is a chipset
  * that is capable of doing memory-mapped config cycles.  This also
@@ -154,13 +155,16 @@ legacy_pci_cfgregopen(device_t dev)
 	if (bootverbose && cfgmech == CFGMECH_PCIE)
 		device_printf(dev, "Enabled ECAM PCIe accesses\n");
 }
+#endif /* __rtems__ */
 
 static int
 legacy_attach(device_t dev)
 {
 	device_t child;
 
+#ifndef __rtems__
 	legacy_pci_cfgregopen(dev);
+#endif /* __rtems__ */
 
 	/*
 	 * Let our child drivers identify any child devices that they
@@ -282,7 +286,9 @@ static struct resource_list *cpu_get_rlist(device_t dev, device_t child);
 
 struct cpu_device {
 	struct resource_list cd_rl;
+#ifndef __rtems__
 	struct pcpu *cd_pcpu;
+#endif /* __rtems__ */
 };
 
 static device_method_t cpu_methods[] = {
@@ -342,18 +348,24 @@ cpu_add_child(device_t bus, u_int order, const char *name, int unit)
 {
 	struct cpu_device *cd;
 	device_t child;
+#ifndef __rtems__
 	struct pcpu *pc;
+#endif /* __rtems__ */
 
 	if ((cd = malloc(sizeof(*cd), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL)
 		return (NULL);
 
 	resource_list_init(&cd->cd_rl);
+#ifndef __rtems__
 	pc = pcpu_find(device_get_unit(bus));
 	cd->cd_pcpu = pc;
+#endif /* __rtems__ */
 
 	child = device_add_child_ordered(bus, order, name, unit);
 	if (child != NULL) {
+#ifndef __rtems__
 		pc->pc_device = child;
+#endif /* __rtems__ */
 		device_set_ivars(child, cd);
 	} else
 		free(cd, M_DEVBUF);
@@ -375,6 +387,7 @@ cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
 	struct cpu_device *cpdev;
 
 	switch (index) {
+#ifndef __rtems__
 	case CPU_IVAR_PCPU:
 		cpdev = device_get_ivars(child);
 		*result = (uintptr_t)cpdev->cd_pcpu;
@@ -386,6 +399,7 @@ cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
 			break;
 		}
 		/* FALLTHROUGH */
+#endif /* __rtems__ */
 	default:
 		return (ENOENT);
 	}
diff --git a/rtemsbsd/i386/include/machine/clock.h b/rtemsbsd/i386/include/machine/clock.h
new file mode 100644
index 0000000..415e2b5
--- /dev/null
+++ b/rtemsbsd/i386/include/machine/clock.h
@@ -0,0 +1,2 @@
+extern int tsc_is_invariant;
+extern uint64_t tsc_freq;
diff --git a/rtemsbsd/include/x86/bus.h b/rtemsbsd/include/x86/bus.h
new file mode 100644
index 0000000..2427ae5
--- /dev/null
+++ b/rtemsbsd/include/x86/bus.h
@@ -0,0 +1,1109 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause AND BSD-2-Clause-NetBSDE
+ *
+ * Copyright (c) KATO Takenori, 1999.
+ *
+ * All rights reserved.  Unpublished rights reserved under the copyright
+ * laws of Japan.
+ *
+ * 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 as
+ *    the first lines of this file unmodified.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, 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 DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*	$NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $	*/
+
+/*-
+ * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ */
+
+/*-
+ * Copyright (c) 1996 Charles M. Hannum.  All rights reserved.
+ * Copyright (c) 1996 Christopher G. Demetriou.  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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou
+ *	for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, 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 DAMAGE.
+ */
+
+#ifndef _X86_BUS_H_
+#define _X86_BUS_H_
+
+#include <machine/_bus.h>
+#include <machine/cpufunc.h>
+
+#ifndef __GNUCLIKE_ASM
+#error "no assembler code for your compiler"
+#endif
+
+/*
+ * Values for the x86 bus space tag, not to be used directly by MI code.
+ */
+#define	X86_BUS_SPACE_IO	0	/* space is i/o space */
+#define	X86_BUS_SPACE_MEM	1	/* space is mem space */
+
+#define BUS_SPACE_MAXSIZE_24BIT	0xFFFFFF
+#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
+#if defined(__amd64__)
+#define BUS_SPACE_MAXSIZE	0xFFFFFFFFFFFFFFFFULL
+#else
+#define BUS_SPACE_MAXSIZE	0xFFFFFFFF
+#endif
+#define BUS_SPACE_MAXADDR_24BIT	0xFFFFFF
+#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
+#if defined(__amd64__) || defined(PAE)
+#define BUS_SPACE_MAXADDR_48BIT	0xFFFFFFFFFFFFULL
+#define BUS_SPACE_MAXADDR	0xFFFFFFFFFFFFFFFFULL
+#else
+#define BUS_SPACE_MAXADDR	0xFFFFFFFF
+#endif
+
+#define BUS_SPACE_INVALID_DATA	(~0)
+#define BUS_SPACE_UNRESTRICTED	(~0)
+
+/*
+ * Map a region of device bus space into CPU virtual address space.
+ */
+
+int bus_space_map(bus_space_tag_t tag, bus_addr_t addr, bus_size_t size,
+    int flags, bus_space_handle_t *bshp);
+
+/*
+ * Unmap a region of device bus space.
+ */
+
+void bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t bsh,
+    bus_size_t size);
+
+/*
+ * Get a new handle for a subregion of an already-mapped area of bus space.
+ */
+
+static __inline int bus_space_subregion(bus_space_tag_t t,
+					bus_space_handle_t bsh,
+					bus_size_t offset, bus_size_t size,
+					bus_space_handle_t *nbshp);
+
+static __inline int
+bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
+		    bus_size_t offset, bus_size_t size __unused,
+		    bus_space_handle_t *nbshp)
+{
+
+	*nbshp = bsh + offset;
+	return (0);
+}
+
+/*
+ * Allocate a region of memory that is accessible to devices in bus space.
+ */
+
+int	bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
+			bus_addr_t rend, bus_size_t size, bus_size_t align,
+			bus_size_t boundary, int flags, bus_addr_t *addrp,
+			bus_space_handle_t *bshp);
+
+/*
+ * Free a region of bus space accessible memory.
+ */
+
+static __inline void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
+				    bus_size_t size);
+
+static __inline void
+bus_space_free(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
+	       bus_size_t size __unused)
+{
+}
+
+
+/*
+ * Read a 1, 2, 4, or 8 byte quantity from bus space
+ * described by tag/handle/offset.
+ */
+static __inline u_int8_t bus_space_read_1(bus_space_tag_t tag,
+					  bus_space_handle_t handle,
+					  bus_size_t offset);
+
+static __inline u_int16_t bus_space_read_2(bus_space_tag_t tag,
+					   bus_space_handle_t handle,
+					   bus_size_t offset);
+
+static __inline u_int32_t bus_space_read_4(bus_space_tag_t tag,
+					   bus_space_handle_t handle,
+					   bus_size_t offset);
+
+#ifdef __amd64__
+static __inline uint64_t bus_space_read_8(bus_space_tag_t tag,
+					  bus_space_handle_t handle,
+					  bus_size_t offset);
+#endif
+
+static __inline u_int8_t
+bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle,
+		 bus_size_t offset)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		return (inb(handle + offset));
+	return (*(volatile u_int8_t *)(handle + offset));
+}
+
+static __inline u_int16_t
+bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle,
+		 bus_size_t offset)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		return (inw(handle + offset));
+	return (*(volatile u_int16_t *)(handle + offset));
+}
+
+static __inline u_int32_t
+bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle,
+		 bus_size_t offset)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		return (inl(handle + offset));
+	return (*(volatile u_int32_t *)(handle + offset));
+}
+
+#ifdef __amd64__
+static __inline uint64_t
+bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t handle,
+		 bus_size_t offset)
+{
+
+	if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
+		return (BUS_SPACE_INVALID_DATA);
+	return (*(volatile uint64_t *)(handle + offset));
+}
+#endif
+
+/*
+ * Read `count' 1, 2, 4, or 8 byte quantities from bus space
+ * described by tag/handle/offset and copy into buffer provided.
+ */
+static __inline void bus_space_read_multi_1(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int8_t *addr,
+					    size_t count);
+
+static __inline void bus_space_read_multi_2(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int16_t *addr,
+					    size_t count);
+
+static __inline void bus_space_read_multi_4(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int32_t *addr,
+					    size_t count);
+
+static __inline void
+bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int8_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		insb(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	movb (%2),%%al				\n\
+			stosb					\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory");
+#endif
+	}
+}
+
+static __inline void
+bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int16_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		insw(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	movw (%2),%%ax				\n\
+			stosw					\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory");
+#endif
+	}
+}
+
+static __inline void
+bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int32_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		insl(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	movl (%2),%%eax				\n\
+			stosl					\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory");
+#endif
+	}
+}
+
+#if 0	/* Cause a link error for bus_space_read_multi_8 */
+#define	bus_space_read_multi_8	!!! bus_space_read_multi_8 unimplemented !!!
+#endif
+
+/*
+ * Read `count' 1, 2, 4, or 8 byte quantities from bus space
+ * described by tag/handle and starting at `offset' and copy into
+ * buffer provided.
+ */
+static __inline void bus_space_read_region_1(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset, u_int8_t *addr,
+					     size_t count);
+
+static __inline void bus_space_read_region_2(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset, u_int16_t *addr,
+					     size_t count);
+
+static __inline void bus_space_read_region_4(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset, u_int32_t *addr,
+					     size_t count);
+
+
+static __inline void
+bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, u_int8_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	inb %w2,%%al				\n\
+			stosb					\n\
+			incl %2					\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count), "=d" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsb"					:
+		    "=D" (addr), "=c" (count), "=S" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, u_int16_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	inw %w2,%%ax				\n\
+			stosw					\n\
+			addl $2,%2				\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count), "=d" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsw"					:
+		    "=D" (addr), "=c" (count), "=S" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, u_int32_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	inl %w2,%%eax				\n\
+			stosl					\n\
+			addl $4,%2				\n\
+			loop 1b"				:
+		    "=D" (addr), "=c" (count), "=d" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsl"					:
+		    "=D" (addr), "=c" (count), "=S" (_port_)	:
+		    "0" (addr), "1" (count), "2" (_port_)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+#if 0	/* Cause a link error for bus_space_read_region_8 */
+#define	bus_space_read_region_8	!!! bus_space_read_region_8 unimplemented !!!
+#endif
+
+/*
+ * Write the 1, 2, 4, or 8 byte value `value' to bus space
+ * described by tag/handle/offset.
+ */
+
+static __inline void bus_space_write_1(bus_space_tag_t tag,
+				       bus_space_handle_t bsh,
+				       bus_size_t offset, u_int8_t value);
+
+static __inline void bus_space_write_2(bus_space_tag_t tag,
+				       bus_space_handle_t bsh,
+				       bus_size_t offset, u_int16_t value);
+
+static __inline void bus_space_write_4(bus_space_tag_t tag,
+				       bus_space_handle_t bsh,
+				       bus_size_t offset, u_int32_t value);
+
+#ifdef __amd64__
+static __inline void bus_space_write_8(bus_space_tag_t tag,
+				       bus_space_handle_t bsh,
+				       bus_size_t offset, uint64_t value);
+#endif
+
+static __inline void
+bus_space_write_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int8_t value)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outb(bsh + offset, value);
+	else
+		*(volatile u_int8_t *)(bsh + offset) = value;
+}
+
+static __inline void
+bus_space_write_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int16_t value)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outw(bsh + offset, value);
+	else
+		*(volatile u_int16_t *)(bsh + offset) = value;
+}
+
+static __inline void
+bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int32_t value)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outl(bsh + offset, value);
+	else
+		*(volatile u_int32_t *)(bsh + offset) = value;
+}
+
+#ifdef __amd64__
+static __inline void
+bus_space_write_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+		  bus_size_t offset, uint64_t value)
+{
+
+	if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
+		return;
+	else
+		*(volatile uint64_t *)(bsh + offset) = value;
+}
+#endif
+
+/*
+ * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
+ * provided to bus space described by tag/handle/offset.
+ */
+
+static __inline void bus_space_write_multi_1(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset,
+					     const u_int8_t *addr,
+					     size_t count);
+static __inline void bus_space_write_multi_2(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset,
+					     const u_int16_t *addr,
+					     size_t count);
+
+static __inline void bus_space_write_multi_4(bus_space_tag_t tag,
+					     bus_space_handle_t bsh,
+					     bus_size_t offset,
+					     const u_int32_t *addr,
+					     size_t count);
+
+static __inline void
+bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, const u_int8_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outsb(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsb					\n\
+			movb %%al,(%2)				\n\
+			loop 1b"				:
+		    "=S" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, const u_int16_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outsw(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsw					\n\
+			movw %%ax,(%2)				\n\
+			loop 1b"				:
+		    "=S" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+			bus_size_t offset, const u_int32_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO)
+		outsl(bsh + offset, addr, count);
+	else {
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsl					\n\
+			movl %%eax,(%2)				\n\
+			loop 1b"				:
+		    "=S" (addr), "=c" (count)			:
+		    "r" (bsh + offset), "0" (addr), "1" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	}
+}
+
+#if 0	/* Cause a link error for bus_space_write_multi_8 */
+#define	bus_space_write_multi_8(t, h, o, a, c)				\
+			!!! bus_space_write_multi_8 unimplemented !!!
+#endif
+
+/*
+ * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
+ * to bus space described by tag/handle starting at `offset'.
+ */
+
+static __inline void bus_space_write_region_1(bus_space_tag_t tag,
+					      bus_space_handle_t bsh,
+					      bus_size_t offset,
+					      const u_int8_t *addr,
+					      size_t count);
+static __inline void bus_space_write_region_2(bus_space_tag_t tag,
+					      bus_space_handle_t bsh,
+					      bus_size_t offset,
+					      const u_int16_t *addr,
+					      size_t count);
+static __inline void bus_space_write_region_4(bus_space_tag_t tag,
+					      bus_space_handle_t bsh,
+					      bus_size_t offset,
+					      const u_int32_t *addr,
+					      size_t count);
+
+static __inline void
+bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+			 bus_size_t offset, const u_int8_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsb					\n\
+			outb %%al,%w0				\n\
+			incl %0					\n\
+			loop 1b"				:
+		    "=d" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsb"					:
+		    "=D" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+			 bus_size_t offset, const u_int16_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsw					\n\
+			outw %%ax,%w0				\n\
+			addl $2,%0				\n\
+			loop 1b"				:
+		    "=d" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsw"					:
+		    "=D" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+static __inline void
+bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+			 bus_size_t offset, const u_int32_t *addr, size_t count)
+{
+
+	if (tag == X86_BUS_SPACE_IO) {
+		int _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+		1:	lodsl					\n\
+			outl %%eax,%w0				\n\
+			addl $4,%0				\n\
+			loop 1b"				:
+		    "=d" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "%eax", "memory", "cc");
+#endif
+	} else {
+		bus_space_handle_t _port_ = bsh + offset;
+#ifdef __GNUCLIKE_ASM
+		__asm __volatile("				\n\
+			cld					\n\
+			repne					\n\
+			movsl"					:
+		    "=D" (_port_), "=S" (addr), "=c" (count)	:
+		    "0" (_port_), "1" (addr), "2" (count)	:
+		    "memory", "cc");
+#endif
+	}
+}
+
+#if 0	/* Cause a link error for bus_space_write_region_8 */
+#define	bus_space_write_region_8					\
+			!!! bus_space_write_region_8 unimplemented !!!
+#endif
+
+/*
+ * Write the 1, 2, 4, or 8 byte value `val' to bus space described
+ * by tag/handle/offset `count' times.
+ */
+
+static __inline void bus_space_set_multi_1(bus_space_tag_t tag,
+					   bus_space_handle_t bsh,
+					   bus_size_t offset,
+					   u_int8_t value, size_t count);
+static __inline void bus_space_set_multi_2(bus_space_tag_t tag,
+					   bus_space_handle_t bsh,
+					   bus_size_t offset,
+					   u_int16_t value, size_t count);
+static __inline void bus_space_set_multi_4(bus_space_tag_t tag,
+					   bus_space_handle_t bsh,
+					   bus_size_t offset,
+					   u_int32_t value, size_t count);
+
+static __inline void
+bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+		      bus_size_t offset, u_int8_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		while (count--)
+			outb(addr, value);
+	else
+		while (count--)
+			*(volatile u_int8_t *)(addr) = value;
+}
+
+static __inline void
+bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+		     bus_size_t offset, u_int16_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		while (count--)
+			outw(addr, value);
+	else
+		while (count--)
+			*(volatile u_int16_t *)(addr) = value;
+}
+
+static __inline void
+bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+		      bus_size_t offset, u_int32_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		while (count--)
+			outl(addr, value);
+	else
+		while (count--)
+			*(volatile u_int32_t *)(addr) = value;
+}
+
+#if 0	/* Cause a link error for bus_space_set_multi_8 */
+#define	bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
+#endif
+
+/*
+ * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
+ * by tag/handle starting at `offset'.
+ */
+
+static __inline void bus_space_set_region_1(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int8_t value,
+					    size_t count);
+static __inline void bus_space_set_region_2(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int16_t value,
+					    size_t count);
+static __inline void bus_space_set_region_4(bus_space_tag_t tag,
+					    bus_space_handle_t bsh,
+					    bus_size_t offset, u_int32_t value,
+					    size_t count);
+
+static __inline void
+bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int8_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		for (; count != 0; count--, addr++)
+			outb(addr, value);
+	else
+		for (; count != 0; count--, addr++)
+			*(volatile u_int8_t *)(addr) = value;
+}
+
+static __inline void
+bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int16_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		for (; count != 0; count--, addr += 2)
+			outw(addr, value);
+	else
+		for (; count != 0; count--, addr += 2)
+			*(volatile u_int16_t *)(addr) = value;
+}
+
+static __inline void
+bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
+		       bus_size_t offset, u_int32_t value, size_t count)
+{
+	bus_space_handle_t addr = bsh + offset;
+
+	if (tag == X86_BUS_SPACE_IO)
+		for (; count != 0; count--, addr += 4)
+			outl(addr, value);
+	else
+		for (; count != 0; count--, addr += 4)
+			*(volatile u_int32_t *)(addr) = value;
+}
+
+#if 0	/* Cause a link error for bus_space_set_region_8 */
+#define	bus_space_set_region_8	!!! bus_space_set_region_8 unimplemented !!!
+#endif
+
+/*
+ * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
+ * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
+ */
+
+static __inline void bus_space_copy_region_1(bus_space_tag_t tag,
+					     bus_space_handle_t bsh1,
+					     bus_size_t off1,
+					     bus_space_handle_t bsh2,
+					     bus_size_t off2, size_t count);
+
+static __inline void bus_space_copy_region_2(bus_space_tag_t tag,
+					     bus_space_handle_t bsh1,
+					     bus_size_t off1,
+					     bus_space_handle_t bsh2,
+					     bus_size_t off2, size_t count);
+
+static __inline void bus_space_copy_region_4(bus_space_tag_t tag,
+					     bus_space_handle_t bsh1,
+					     bus_size_t off1,
+					     bus_space_handle_t bsh2,
+					     bus_size_t off2, size_t count);
+
+static __inline void
+bus_space_copy_region_1(bus_space_tag_t tag, bus_space_handle_t bsh1,
+			bus_size_t off1, bus_space_handle_t bsh2,
+			bus_size_t off2, size_t count)
+{
+	bus_space_handle_t addr1 = bsh1 + off1;
+	bus_space_handle_t addr2 = bsh2 + off2;
+
+	if (tag == X86_BUS_SPACE_IO) {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1++, addr2++)
+				outb(addr2, inb(addr1));
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += (count - 1), addr2 += (count - 1);
+			    count != 0; count--, addr1--, addr2--)
+				outb(addr2, inb(addr1));
+		}
+	} else {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1++, addr2++)
+				*(volatile u_int8_t *)(addr2) =
+				    *(volatile u_int8_t *)(addr1);
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += (count - 1), addr2 += (count - 1);
+			    count != 0; count--, addr1--, addr2--)
+				*(volatile u_int8_t *)(addr2) =
+				    *(volatile u_int8_t *)(addr1);
+		}
+	}
+}
+
+static __inline void
+bus_space_copy_region_2(bus_space_tag_t tag, bus_space_handle_t bsh1,
+			bus_size_t off1, bus_space_handle_t bsh2,
+			bus_size_t off2, size_t count)
+{
+	bus_space_handle_t addr1 = bsh1 + off1;
+	bus_space_handle_t addr2 = bsh2 + off2;
+
+	if (tag == X86_BUS_SPACE_IO) {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1 += 2, addr2 += 2)
+				outw(addr2, inw(addr1));
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
+			    count != 0; count--, addr1 -= 2, addr2 -= 2)
+				outw(addr2, inw(addr1));
+		}
+	} else {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1 += 2, addr2 += 2)
+				*(volatile u_int16_t *)(addr2) =
+				    *(volatile u_int16_t *)(addr1);
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
+			    count != 0; count--, addr1 -= 2, addr2 -= 2)
+				*(volatile u_int16_t *)(addr2) =
+				    *(volatile u_int16_t *)(addr1);
+		}
+	}
+}
+
+static __inline void
+bus_space_copy_region_4(bus_space_tag_t tag, bus_space_handle_t bsh1,
+			bus_size_t off1, bus_space_handle_t bsh2,
+			bus_size_t off2, size_t count)
+{
+	bus_space_handle_t addr1 = bsh1 + off1;
+	bus_space_handle_t addr2 = bsh2 + off2;
+
+	if (tag == X86_BUS_SPACE_IO) {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1 += 4, addr2 += 4)
+				outl(addr2, inl(addr1));
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
+			    count != 0; count--, addr1 -= 4, addr2 -= 4)
+				outl(addr2, inl(addr1));
+		}
+	} else {
+		if (addr1 >= addr2) {
+			/* src after dest: copy forward */
+			for (; count != 0; count--, addr1 += 4, addr2 += 4)
+				*(volatile u_int32_t *)(addr2) =
+				    *(volatile u_int32_t *)(addr1);
+		} else {
+			/* dest after src: copy backwards */
+			for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
+			    count != 0; count--, addr1 -= 4, addr2 -= 4)
+				*(volatile u_int32_t *)(addr2) =
+				    *(volatile u_int32_t *)(addr1);
+		}
+	}
+}
+
+#if 0	/* Cause a link error for bus_space_copy_8 */
+#define	bus_space_copy_region_8	!!! bus_space_copy_region_8 unimplemented !!!
+#endif
+
+/*
+ * Bus read/write barrier methods.
+ *
+ *	void bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t bsh,
+ *			       bus_size_t offset, bus_size_t len, int flags);
+ *
+ *
+ * Note that BUS_SPACE_BARRIER_WRITE doesn't do anything other than
+ * prevent reordering by the compiler; all Intel x86 processors currently
+ * retire operations outside the CPU in program order.
+ */
+#define	BUS_SPACE_BARRIER_READ	0x01		/* force read barrier */
+#define	BUS_SPACE_BARRIER_WRITE	0x02		/* force write barrier */
+
+static __inline void
+bus_space_barrier(bus_space_tag_t tag __unused, bus_space_handle_t bsh __unused,
+		  bus_size_t offset __unused, bus_size_t len __unused, int flags)
+{
+#ifdef __GNUCLIKE_ASM
+	if (flags & BUS_SPACE_BARRIER_READ)
+#ifdef __amd64__
+		__asm __volatile("lock; addl $0,0(%%rsp)" : : : "memory");
+#else
+		__asm __volatile("lock; addl $0,0(%%esp)" : : : "memory");
+#endif
+	else
+		__compiler_membar();
+#endif
+}
+
+#ifdef BUS_SPACE_NO_LEGACY
+#undef inb
+#undef outb
+#define inb(a) compiler_error
+#define inw(a) compiler_error
+#define inl(a) compiler_error
+#define outb(a, b) compiler_error
+#define outw(a, b) compiler_error
+#define outl(a, b) compiler_error
+#endif
+
+#include <machine/bus_dma.h>
+
+/*
+ * Stream accesses are the same as normal accesses on x86; there are no
+ * supported bus systems with an endianess different from the host one.
+ */
+#define	bus_space_read_stream_1(t, h, o)	bus_space_read_1((t), (h), (o))
+#define	bus_space_read_stream_2(t, h, o)	bus_space_read_2((t), (h), (o))
+#define	bus_space_read_stream_4(t, h, o)	bus_space_read_4((t), (h), (o))
+
+#define	bus_space_read_multi_stream_1(t, h, o, a, c) \
+	bus_space_read_multi_1((t), (h), (o), (a), (c))
+#define	bus_space_read_multi_stream_2(t, h, o, a, c) \
+	bus_space_read_multi_2((t), (h), (o), (a), (c))
+#define	bus_space_read_multi_stream_4(t, h, o, a, c) \
+	bus_space_read_multi_4((t), (h), (o), (a), (c))
+
+#define	bus_space_write_stream_1(t, h, o, v) \
+	bus_space_write_1((t), (h), (o), (v))
+#define	bus_space_write_stream_2(t, h, o, v) \
+	bus_space_write_2((t), (h), (o), (v))
+#define	bus_space_write_stream_4(t, h, o, v) \
+	bus_space_write_4((t), (h), (o), (v))
+
+#define	bus_space_write_multi_stream_1(t, h, o, a, c) \
+	bus_space_write_multi_1((t), (h), (o), (a), (c))
+#define	bus_space_write_multi_stream_2(t, h, o, a, c) \
+	bus_space_write_multi_2((t), (h), (o), (a), (c))
+#define	bus_space_write_multi_stream_4(t, h, o, a, c) \
+	bus_space_write_multi_4((t), (h), (o), (a), (c))
+
+#define	bus_space_set_multi_stream_1(t, h, o, v, c) \
+	bus_space_set_multi_1((t), (h), (o), (v), (c))
+#define	bus_space_set_multi_stream_2(t, h, o, v, c) \
+	bus_space_set_multi_2((t), (h), (o), (v), (c))
+#define	bus_space_set_multi_stream_4(t, h, o, v, c) \
+	bus_space_set_multi_4((t), (h), (o), (v), (c))
+
+#define	bus_space_read_region_stream_1(t, h, o, a, c) \
+	bus_space_read_region_1((t), (h), (o), (a), (c))
+#define	bus_space_read_region_stream_2(t, h, o, a, c) \
+	bus_space_read_region_2((t), (h), (o), (a), (c))
+#define	bus_space_read_region_stream_4(t, h, o, a, c) \
+	bus_space_read_region_4((t), (h), (o), (a), (c))
+
+#define	bus_space_write_region_stream_1(t, h, o, a, c) \
+	bus_space_write_region_1((t), (h), (o), (a), (c))
+#define	bus_space_write_region_stream_2(t, h, o, a, c) \
+	bus_space_write_region_2((t), (h), (o), (a), (c))
+#define	bus_space_write_region_stream_4(t, h, o, a, c) \
+	bus_space_write_region_4((t), (h), (o), (a), (c))
+
+#define	bus_space_set_region_stream_1(t, h, o, v, c) \
+	bus_space_set_region_1((t), (h), (o), (v), (c))
+#define	bus_space_set_region_stream_2(t, h, o, v, c) \
+	bus_space_set_region_2((t), (h), (o), (v), (c))
+#define	bus_space_set_region_stream_4(t, h, o, v, c) \
+	bus_space_set_region_4((t), (h), (o), (v), (c))
+
+#define	bus_space_copy_region_stream_1(t, h1, o1, h2, o2, c) \
+	bus_space_copy_region_1((t), (h1), (o1), (h2), (o2), (c))
+#define	bus_space_copy_region_stream_2(t, h1, o1, h2, o2, c) \
+	bus_space_copy_region_2((t), (h1), (o1), (h2), (o2), (c))
+#define	bus_space_copy_region_stream_4(t, h1, o1, h2, o2, c) \
+	bus_space_copy_region_4((t), (h1), (o1), (h2), (o2), (c))
+
+#endif /* _X86_BUS_H_ */
diff --git a/rtemsbsd/include/x86/legacyvar.h b/rtemsbsd/include/x86/legacyvar.h
new file mode 100644
index 0000000..6f8573b
--- /dev/null
+++ b/rtemsbsd/include/x86/legacyvar.h
@@ -0,0 +1 @@
+#include <machine/legacyvar.h>
diff --git a/rtemsbsd/include/x86/metadata.h b/rtemsbsd/include/x86/metadata.h
new file mode 100644
index 0000000..3c27eb9
--- /dev/null
+++ b/rtemsbsd/include/x86/metadata.h
@@ -0,0 +1 @@
+#include <metadata.h>
diff --git a/rtemsbsd/include/x86/specialreg.h b/rtemsbsd/include/x86/specialreg.h
new file mode 100644
index 0000000..f528bad
--- /dev/null
+++ b/rtemsbsd/include/x86/specialreg.h
@@ -0,0 +1,1143 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1991 The Regents of the University of California.
+ * 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ *
+ *	from: @(#)specialreg.h	7.1 (Berkeley) 5/9/91
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_SPECIALREG_H_
+#define	_MACHINE_SPECIALREG_H_
+
+/*
+ * Bits in 386 special registers:
+ */
+#define	CR0_PE	0x00000001	/* Protected mode Enable */
+#define	CR0_MP	0x00000002	/* "Math" (fpu) Present */
+#define	CR0_EM	0x00000004	/* EMulate FPU instructions. (trap ESC only) */
+#define	CR0_TS	0x00000008	/* Task Switched (if MP, trap ESC and WAIT) */
+#define	CR0_PG	0x80000000	/* PaGing enable */
+
+/*
+ * Bits in 486 special registers:
+ */
+#define	CR0_NE	0x00000020	/* Numeric Error enable (EX16 vs IRQ13) */
+#define	CR0_WP	0x00010000	/* Write Protect (honor page protect in
+							   all modes) */
+#define	CR0_AM	0x00040000	/* Alignment Mask (set to enable AC flag) */
+#define	CR0_NW  0x20000000	/* Not Write-through */
+#define	CR0_CD  0x40000000	/* Cache Disable */
+
+#define	CR3_PCID_SAVE 0x8000000000000000
+#define	CR3_PCID_MASK 0xfff
+
+/*
+ * Bits in PPro special registers
+ */
+#define	CR4_VME	0x00000001	/* Virtual 8086 mode extensions */
+#define	CR4_PVI	0x00000002	/* Protected-mode virtual interrupts */
+#define	CR4_TSD	0x00000004	/* Time stamp disable */
+#define	CR4_DE	0x00000008	/* Debugging extensions */
+#define	CR4_PSE	0x00000010	/* Page size extensions */
+#define	CR4_PAE	0x00000020	/* Physical address extension */
+#define	CR4_MCE	0x00000040	/* Machine check enable */
+#define	CR4_PGE	0x00000080	/* Page global enable */
+#define	CR4_PCE	0x00000100	/* Performance monitoring counter enable */
+#define	CR4_FXSR 0x00000200	/* Fast FPU save/restore used by OS */
+#define	CR4_XMM	0x00000400	/* enable SIMD/MMX2 to use except 16 */
+#define	CR4_VMXE 0x00002000	/* enable VMX operation (Intel-specific) */
+#define	CR4_FSGSBASE 0x00010000	/* Enable FS/GS BASE accessing instructions */
+#define	CR4_PCIDE 0x00020000	/* Enable Context ID */
+#define	CR4_XSAVE 0x00040000	/* XSETBV/XGETBV */
+#define	CR4_SMEP 0x00100000	/* Supervisor-Mode Execution Prevention */
+#define	CR4_SMAP 0x00200000	/* Supervisor-Mode Access Prevention */
+#define	CR4_PKE	0x00400000	/* Protection Keys Enable */
+
+/*
+ * Bits in AMD64 special registers.  EFER is 64 bits wide.
+ */
+#define	EFER_SCE 0x000000001	/* System Call Extensions (R/W) */
+#define	EFER_LME 0x000000100	/* Long mode enable (R/W) */
+#define	EFER_LMA 0x000000400	/* Long mode active (R) */
+#define	EFER_NXE 0x000000800	/* PTE No-Execute bit enable (R/W) */
+#define	EFER_SVM 0x000001000	/* SVM enable bit for AMD, reserved for Intel */
+#define	EFER_LMSLE 0x000002000	/* Long Mode Segment Limit Enable */
+#define	EFER_FFXSR 0x000004000	/* Fast FXSAVE/FSRSTOR */
+#define	EFER_TCE   0x000008000	/* Translation Cache Extension */
+
+/*
+ * Intel Extended Features registers
+ */
+#define	XCR0	0		/* XFEATURE_ENABLED_MASK register */
+
+#define	XFEATURE_ENABLED_X87		0x00000001
+#define	XFEATURE_ENABLED_SSE		0x00000002
+#define	XFEATURE_ENABLED_YMM_HI128	0x00000004
+#define	XFEATURE_ENABLED_AVX		XFEATURE_ENABLED_YMM_HI128
+#define	XFEATURE_ENABLED_BNDREGS	0x00000008
+#define	XFEATURE_ENABLED_BNDCSR		0x00000010
+#define	XFEATURE_ENABLED_OPMASK		0x00000020
+#define	XFEATURE_ENABLED_ZMM_HI256	0x00000040
+#define	XFEATURE_ENABLED_HI16_ZMM	0x00000080
+
+#define	XFEATURE_AVX					\
+    (XFEATURE_ENABLED_X87 | XFEATURE_ENABLED_SSE | XFEATURE_ENABLED_AVX)
+#define	XFEATURE_AVX512						\
+    (XFEATURE_ENABLED_OPMASK | XFEATURE_ENABLED_ZMM_HI256 |	\
+    XFEATURE_ENABLED_HI16_ZMM)
+#define	XFEATURE_MPX					\
+    (XFEATURE_ENABLED_BNDREGS | XFEATURE_ENABLED_BNDCSR)
+
+/*
+ * CPUID instruction features register
+ */
+#define	CPUID_FPU	0x00000001
+#define	CPUID_VME	0x00000002
+#define	CPUID_DE	0x00000004
+#define	CPUID_PSE	0x00000008
+#define	CPUID_TSC	0x00000010
+#define	CPUID_MSR	0x00000020
+#define	CPUID_PAE	0x00000040
+#define	CPUID_MCE	0x00000080
+#define	CPUID_CX8	0x00000100
+#define	CPUID_APIC	0x00000200
+#define	CPUID_B10	0x00000400
+#define	CPUID_SEP	0x00000800
+#define	CPUID_MTRR	0x00001000
+#define	CPUID_PGE	0x00002000
+#define	CPUID_MCA	0x00004000
+#define	CPUID_CMOV	0x00008000
+#define	CPUID_PAT	0x00010000
+#define	CPUID_PSE36	0x00020000
+#define	CPUID_PSN	0x00040000
+#define	CPUID_CLFSH	0x00080000
+#define	CPUID_B20	0x00100000
+#define	CPUID_DS	0x00200000
+#define	CPUID_ACPI	0x00400000
+#define	CPUID_MMX	0x00800000
+#define	CPUID_FXSR	0x01000000
+#define	CPUID_SSE	0x02000000
+#define	CPUID_XMM	0x02000000
+#define	CPUID_SSE2	0x04000000
+#define	CPUID_SS	0x08000000
+#define	CPUID_HTT	0x10000000
+#define	CPUID_TM	0x20000000
+#define	CPUID_IA64	0x40000000
+#define	CPUID_PBE	0x80000000
+
+#define	CPUID2_SSE3	0x00000001
+#define	CPUID2_PCLMULQDQ 0x00000002
+#define	CPUID2_DTES64	0x00000004
+#define	CPUID2_MON	0x00000008
+#define	CPUID2_DS_CPL	0x00000010
+#define	CPUID2_VMX	0x00000020
+#define	CPUID2_SMX	0x00000040
+#define	CPUID2_EST	0x00000080
+#define	CPUID2_TM2	0x00000100
+#define	CPUID2_SSSE3	0x00000200
+#define	CPUID2_CNXTID	0x00000400
+#define	CPUID2_SDBG	0x00000800
+#define	CPUID2_FMA	0x00001000
+#define	CPUID2_CX16	0x00002000
+#define	CPUID2_XTPR	0x00004000
+#define	CPUID2_PDCM	0x00008000
+#define	CPUID2_PCID	0x00020000
+#define	CPUID2_DCA	0x00040000
+#define	CPUID2_SSE41	0x00080000
+#define	CPUID2_SSE42	0x00100000
+#define	CPUID2_X2APIC	0x00200000
+#define	CPUID2_MOVBE	0x00400000
+#define	CPUID2_POPCNT	0x00800000
+#define	CPUID2_TSCDLT	0x01000000
+#define	CPUID2_AESNI	0x02000000
+#define	CPUID2_XSAVE	0x04000000
+#define	CPUID2_OSXSAVE	0x08000000
+#define	CPUID2_AVX	0x10000000
+#define	CPUID2_F16C	0x20000000
+#define	CPUID2_RDRAND	0x40000000
+#define	CPUID2_HV	0x80000000
+
+/*
+ * Important bits in the Thermal and Power Management flags
+ * CPUID.6 EAX and ECX.
+ */
+#define	CPUTPM1_SENSOR	0x00000001
+#define	CPUTPM1_TURBO	0x00000002
+#define	CPUTPM1_ARAT	0x00000004
+#define	CPUTPM1_HWP	0x00000080
+#define	CPUTPM1_HWP_NOTIFICATION	0x00000100
+#define	CPUTPM1_HWP_ACTIVITY_WINDOW	0x00000200
+#define	CPUTPM1_HWP_PERF_PREF	0x00000400
+#define	CPUTPM1_HWP_PKG	0x00000800
+#define	CPUTPM1_HWP_FLEXIBLE	0x00020000
+#define	CPUTPM2_EFFREQ	0x00000001
+
+/* Intel Processor Trace CPUID. */
+
+/* Leaf 0 ebx. */
+#define	CPUPT_CR3		(1 << 0)	/* CR3 Filtering Support */
+#define	CPUPT_PSB		(1 << 1)	/* Configurable PSB and Cycle-Accurate Mode Supported */
+#define	CPUPT_IPF		(1 << 2)	/* IP Filtering and TraceStop supported */
+#define	CPUPT_MTC		(1 << 3)	/* MTC Supported */
+#define	CPUPT_PRW		(1 << 4)	/* PTWRITE Supported */
+#define	CPUPT_PWR		(1 << 5)	/* Power Event Trace Supported */
+
+/* Leaf 0 ecx. */
+#define	CPUPT_TOPA		(1 << 0)	/* ToPA Output Supported */
+#define	CPUPT_TOPA_MULTI	(1 << 1)	/* ToPA Tables Allow Multiple Output Entries */
+#define	CPUPT_SINGLE		(1 << 2)	/* Single-Range Output Supported */
+#define	CPUPT_TT_OUT		(1 << 3)	/* Output to Trace Transport Subsystem Supported */
+#define	CPUPT_LINEAR_IP		(1 << 31)	/* IP Payloads are Linear IP, otherwise IP is effective */
+
+/* Leaf 1 eax. */
+#define	CPUPT_NADDR_S		0	/* Number of Address Ranges */
+#define	CPUPT_NADDR_M		(0x7 << CPUPT_NADDR_S)
+#define	CPUPT_MTC_BITMAP_S	16	/* Bitmap of supported MTC Period Encodings */
+#define	CPUPT_MTC_BITMAP_M	(0xffff << CPUPT_MTC_BITMAP_S)
+
+/* Leaf 1 ebx. */
+#define	CPUPT_CT_BITMAP_S	0	/* Bitmap of supported Cycle Threshold values */
+#define	CPUPT_CT_BITMAP_M	(0xffff << CPUPT_CT_BITMAP_S)
+#define	CPUPT_PFE_BITMAP_S	16	/* Bitmap of supported Configurable PSB Frequency encoding */
+#define	CPUPT_PFE_BITMAP_M	(0xffff << CPUPT_PFE_BITMAP_S)
+
+/*
+ * Important bits in the AMD extended cpuid flags
+ */
+#define	AMDID_SYSCALL	0x00000800
+#define	AMDID_MP	0x00080000
+#define	AMDID_NX	0x00100000
+#define	AMDID_EXT_MMX	0x00400000
+#define	AMDID_FFXSR	0x02000000
+#define	AMDID_PAGE1GB	0x04000000
+#define	AMDID_RDTSCP	0x08000000
+#define	AMDID_LM	0x20000000
+#define	AMDID_EXT_3DNOW	0x40000000
+#define	AMDID_3DNOW	0x80000000
+
+#define	AMDID2_LAHF	0x00000001
+#define	AMDID2_CMP	0x00000002
+#define	AMDID2_SVM	0x00000004
+#define	AMDID2_EXT_APIC	0x00000008
+#define	AMDID2_CR8	0x00000010
+#define	AMDID2_ABM	0x00000020
+#define	AMDID2_SSE4A	0x00000040
+#define	AMDID2_MAS	0x00000080
+#define	AMDID2_PREFETCH	0x00000100
+#define	AMDID2_OSVW	0x00000200
+#define	AMDID2_IBS	0x00000400
+#define	AMDID2_XOP	0x00000800
+#define	AMDID2_SKINIT	0x00001000
+#define	AMDID2_WDT	0x00002000
+#define	AMDID2_LWP	0x00008000
+#define	AMDID2_FMA4	0x00010000
+#define	AMDID2_TCE	0x00020000
+#define	AMDID2_NODE_ID	0x00080000
+#define	AMDID2_TBM	0x00200000
+#define	AMDID2_TOPOLOGY	0x00400000
+#define	AMDID2_PCXC	0x00800000
+#define	AMDID2_PNXC	0x01000000
+#define	AMDID2_DBE	0x04000000
+#define	AMDID2_PTSC	0x08000000
+#define	AMDID2_PTSCEL2I	0x10000000
+#define	AMDID2_MWAITX	0x20000000
+
+/*
+ * CPUID instruction 1 eax info
+ */
+#define	CPUID_STEPPING		0x0000000f
+#define	CPUID_MODEL		0x000000f0
+#define	CPUID_FAMILY		0x00000f00
+#define	CPUID_EXT_MODEL		0x000f0000
+#define	CPUID_EXT_FAMILY	0x0ff00000
+#ifdef __i386__
+#define	CPUID_TO_MODEL(id) \
+    ((((id) & CPUID_MODEL) >> 4) | \
+    ((((id) & CPUID_FAMILY) >= 0x600) ? \
+    (((id) & CPUID_EXT_MODEL) >> 12) : 0))
+#define	CPUID_TO_FAMILY(id) \
+    ((((id) & CPUID_FAMILY) >> 8) + \
+    ((((id) & CPUID_FAMILY) == 0xf00) ? \
+    (((id) & CPUID_EXT_FAMILY) >> 20) : 0))
+#else
+#define	CPUID_TO_MODEL(id) \
+    ((((id) & CPUID_MODEL) >> 4) | \
+    (((id) & CPUID_EXT_MODEL) >> 12))
+#define	CPUID_TO_FAMILY(id) \
+    ((((id) & CPUID_FAMILY) >> 8) + \
+    (((id) & CPUID_EXT_FAMILY) >> 20))
+#endif
+
+/*
+ * CPUID instruction 1 ebx info
+ */
+#define	CPUID_BRAND_INDEX	0x000000ff
+#define	CPUID_CLFUSH_SIZE	0x0000ff00
+#define	CPUID_HTT_CORES		0x00ff0000
+#define	CPUID_LOCAL_APIC_ID	0xff000000
+
+/*
+ * CPUID instruction 5 info
+ */
+#define	CPUID5_MON_MIN_SIZE	0x0000ffff	/* eax */
+#define	CPUID5_MON_MAX_SIZE	0x0000ffff	/* ebx */
+#define	CPUID5_MON_MWAIT_EXT	0x00000001	/* ecx */
+#define	CPUID5_MWAIT_INTRBREAK	0x00000002	/* ecx */
+
+/*
+ * MWAIT cpu power states.  Lower 4 bits are sub-states.
+ */
+#define	MWAIT_C0	0xf0
+#define	MWAIT_C1	0x00
+#define	MWAIT_C2	0x10
+#define	MWAIT_C3	0x20
+#define	MWAIT_C4	0x30
+
+/*
+ * MWAIT extensions.
+ */
+/* Interrupt breaks MWAIT even when masked. */
+#define	MWAIT_INTRBREAK		0x00000001
+
+/*
+ * CPUID instruction 6 ecx info
+ */
+#define	CPUID_PERF_STAT		0x00000001
+#define	CPUID_PERF_BIAS		0x00000008
+
+/* 
+ * CPUID instruction 0xb ebx info.
+ */
+#define	CPUID_TYPE_INVAL	0
+#define	CPUID_TYPE_SMT		1
+#define	CPUID_TYPE_CORE		2
+
+/*
+ * CPUID instruction 0xd Processor Extended State Enumeration Sub-leaf 1
+ */
+#define	CPUID_EXTSTATE_XSAVEOPT	0x00000001
+#define	CPUID_EXTSTATE_XSAVEC	0x00000002
+#define	CPUID_EXTSTATE_XINUSE	0x00000004
+#define	CPUID_EXTSTATE_XSAVES	0x00000008
+
+/*
+ * AMD extended function 8000_0007h ebx info
+ */
+#define	AMDRAS_MCA_OF_RECOV	0x00000001
+#define	AMDRAS_SUCCOR		0x00000002
+#define	AMDRAS_HW_ASSERT	0x00000004
+#define	AMDRAS_SCALABLE_MCA	0x00000008
+#define	AMDRAS_PFEH_SUPPORT	0x00000010
+
+/*
+ * AMD extended function 8000_0007h edx info
+ */
+#define	AMDPM_TS		0x00000001
+#define	AMDPM_FID		0x00000002
+#define	AMDPM_VID		0x00000004
+#define	AMDPM_TTP		0x00000008
+#define	AMDPM_TM		0x00000010
+#define	AMDPM_STC		0x00000020
+#define	AMDPM_100MHZ_STEPS	0x00000040
+#define	AMDPM_HW_PSTATE		0x00000080
+#define	AMDPM_TSC_INVARIANT	0x00000100
+#define	AMDPM_CPB		0x00000200
+
+/*
+ * AMD extended function 8000_0008h ebx info (amd_extended_feature_extensions)
+ */
+#define	AMDFEID_CLZERO		0x00000001
+#define	AMDFEID_IRPERF		0x00000002
+#define	AMDFEID_XSAVEERPTR	0x00000004
+#define	AMDFEID_IBPB		0x00001000
+#define	AMDFEID_IBRS		0x00004000
+#define	AMDFEID_STIBP		0x00008000
+/* The below are only defined if the corresponding base feature above exists. */
+#define	AMDFEID_IBRS_ALWAYSON	0x00010000
+#define	AMDFEID_STIBP_ALWAYSON	0x00020000
+#define	AMDFEID_PREFER_IBRS	0x00040000
+#define	AMDFEID_SSBD		0x01000000
+/* SSBD via MSRC001_011F instead of MSR 0x48: */
+#define	AMDFEID_VIRT_SSBD	0x02000000
+#define	AMDFEID_SSB_NO		0x04000000
+
+/*
+ * AMD extended function 8000_0008h ecx info
+ */
+#define	AMDID_CMP_CORES		0x000000ff
+#define	AMDID_COREID_SIZE	0x0000f000
+#define	AMDID_COREID_SIZE_SHIFT	12
+
+/*
+ * CPUID instruction 7 Structured Extended Features, leaf 0 ebx info
+ */
+#define	CPUID_STDEXT_FSGSBASE	0x00000001
+#define	CPUID_STDEXT_TSC_ADJUST	0x00000002
+#define	CPUID_STDEXT_SGX	0x00000004
+#define	CPUID_STDEXT_BMI1	0x00000008
+#define	CPUID_STDEXT_HLE	0x00000010
+#define	CPUID_STDEXT_AVX2	0x00000020
+#define	CPUID_STDEXT_FDP_EXC	0x00000040
+#define	CPUID_STDEXT_SMEP	0x00000080
+#define	CPUID_STDEXT_BMI2	0x00000100
+#define	CPUID_STDEXT_ERMS	0x00000200
+#define	CPUID_STDEXT_INVPCID	0x00000400
+#define	CPUID_STDEXT_RTM	0x00000800
+#define	CPUID_STDEXT_PQM	0x00001000
+#define	CPUID_STDEXT_NFPUSG	0x00002000
+#define	CPUID_STDEXT_MPX	0x00004000
+#define	CPUID_STDEXT_PQE	0x00008000
+#define	CPUID_STDEXT_AVX512F	0x00010000
+#define	CPUID_STDEXT_AVX512DQ	0x00020000
+#define	CPUID_STDEXT_RDSEED	0x00040000
+#define	CPUID_STDEXT_ADX	0x00080000
+#define	CPUID_STDEXT_SMAP	0x00100000
+#define	CPUID_STDEXT_AVX512IFMA	0x00200000
+#define	CPUID_STDEXT_PCOMMIT	0x00400000
+#define	CPUID_STDEXT_CLFLUSHOPT	0x00800000
+#define	CPUID_STDEXT_CLWB	0x01000000
+#define	CPUID_STDEXT_PROCTRACE	0x02000000
+#define	CPUID_STDEXT_AVX512PF	0x04000000
+#define	CPUID_STDEXT_AVX512ER	0x08000000
+#define	CPUID_STDEXT_AVX512CD	0x10000000
+#define	CPUID_STDEXT_SHA	0x20000000
+#define	CPUID_STDEXT_AVX512BW	0x40000000
+#define	CPUID_STDEXT_AVX512VL	0x80000000
+
+/*
+ * CPUID instruction 7 Structured Extended Features, leaf 0 ecx info
+ */
+#define	CPUID_STDEXT2_PREFETCHWT1 	0x00000001
+#define	CPUID_STDEXT2_AVX512VBMI	0x00000002
+#define	CPUID_STDEXT2_UMIP		0x00000004
+#define	CPUID_STDEXT2_PKU		0x00000008
+#define	CPUID_STDEXT2_OSPKE		0x00000010
+#define	CPUID_STDEXT2_WAITPKG		0x00000020
+#define	CPUID_STDEXT2_AVX512VBMI2	0x00000040
+#define	CPUID_STDEXT2_GFNI		0x00000100
+#define	CPUID_STDEXT2_VAES		0x00000200
+#define	CPUID_STDEXT2_VPCLMULQDQ	0x00000400
+#define	CPUID_STDEXT2_AVX512VNNI	0x00000800
+#define	CPUID_STDEXT2_AVX512BITALG	0x00001000
+#define	CPUID_STDEXT2_AVX512VPOPCNTDQ	0x00004000
+#define	CPUID_STDEXT2_RDPID		0x00400000
+#define	CPUID_STDEXT2_CLDEMOTE		0x02000000
+#define	CPUID_STDEXT2_MOVDIRI		0x08000000
+#define	CPUID_STDEXT2_MOVDIRI64B	0x10000000
+#define	CPUID_STDEXT2_ENQCMD		0x20000000
+#define	CPUID_STDEXT2_SGXLC		0x40000000
+
+/*
+ * CPUID instruction 7 Structured Extended Features, leaf 0 edx info
+ */
+#define	CPUID_STDEXT3_AVX5124VNNIW	0x00000004
+#define	CPUID_STDEXT3_AVX5124FMAPS	0x00000008
+#define	CPUID_STDEXT3_AVX512VP2INTERSECT	0x00000100
+#define	CPUID_STDEXT3_MD_CLEAR		0x00000400
+#define	CPUID_STDEXT3_TSXFA		0x00002000
+#define	CPUID_STDEXT3_PCONFIG		0x00040000
+#define	CPUID_STDEXT3_IBPB		0x04000000
+#define	CPUID_STDEXT3_STIBP		0x08000000
+#define	CPUID_STDEXT3_L1D_FLUSH		0x10000000
+#define	CPUID_STDEXT3_ARCH_CAP		0x20000000
+#define	CPUID_STDEXT3_CORE_CAP		0x40000000
+#define	CPUID_STDEXT3_SSBD		0x80000000
+
+/* MSR IA32_ARCH_CAP(ABILITIES) bits */
+#define	IA32_ARCH_CAP_RDCL_NO	0x00000001
+#define	IA32_ARCH_CAP_IBRS_ALL	0x00000002
+#define	IA32_ARCH_CAP_RSBA	0x00000004
+#define	IA32_ARCH_CAP_SKIP_L1DFL_VMENTRY	0x00000008
+#define	IA32_ARCH_CAP_SSB_NO	0x00000010
+#define	IA32_ARCH_CAP_MDS_NO	0x00000020
+
+/*
+ * CPUID manufacturers identifiers
+ */
+#define	AMD_VENDOR_ID		"AuthenticAMD"
+#define	CENTAUR_VENDOR_ID	"CentaurHauls"
+#define	CYRIX_VENDOR_ID		"CyrixInstead"
+#define	INTEL_VENDOR_ID		"GenuineIntel"
+#define	NEXGEN_VENDOR_ID	"NexGenDriven"
+#define	NSC_VENDOR_ID		"Geode by NSC"
+#define	RISE_VENDOR_ID		"RiseRiseRise"
+#define	SIS_VENDOR_ID		"SiS SiS SiS "
+#define	TRANSMETA_VENDOR_ID	"GenuineTMx86"
+#define	UMC_VENDOR_ID		"UMC UMC UMC "
+
+/*
+ * Model-specific registers for the i386 family
+ */
+#define	MSR_P5_MC_ADDR		0x000
+#define	MSR_P5_MC_TYPE		0x001
+#define	MSR_TSC			0x010
+#define	MSR_P5_CESR		0x011
+#define	MSR_P5_CTR0		0x012
+#define	MSR_P5_CTR1		0x013
+#define	MSR_IA32_PLATFORM_ID	0x017
+#define	MSR_APICBASE		0x01b
+#define	MSR_EBL_CR_POWERON	0x02a
+#define	MSR_TEST_CTL		0x033
+#define	MSR_IA32_FEATURE_CONTROL 0x03a
+#define	MSR_IA32_SPEC_CTRL	0x048
+#define	MSR_IA32_PRED_CMD	0x049
+#define	MSR_BIOS_UPDT_TRIG	0x079
+#define	MSR_BBL_CR_D0		0x088
+#define	MSR_BBL_CR_D1		0x089
+#define	MSR_BBL_CR_D2		0x08a
+#define	MSR_BIOS_SIGN		0x08b
+#define	MSR_PERFCTR0		0x0c1
+#define	MSR_PERFCTR1		0x0c2
+#define	MSR_PLATFORM_INFO	0x0ce
+#define	MSR_MPERF		0x0e7
+#define	MSR_APERF		0x0e8
+#define	MSR_IA32_EXT_CONFIG	0x0ee	/* Undocumented. Core Solo/Duo only */
+#define	MSR_MTRRcap		0x0fe
+#define	MSR_IA32_ARCH_CAP	0x10a
+#define	MSR_IA32_FLUSH_CMD	0x10b
+#define	MSR_TSX_FORCE_ABORT	0x10f
+#define	MSR_BBL_CR_ADDR		0x116
+#define	MSR_BBL_CR_DECC		0x118
+#define	MSR_BBL_CR_CTL		0x119
+#define	MSR_BBL_CR_TRIG		0x11a
+#define	MSR_BBL_CR_BUSY		0x11b
+#define	MSR_BBL_CR_CTL3		0x11e
+#define	MSR_SYSENTER_CS_MSR	0x174
+#define	MSR_SYSENTER_ESP_MSR	0x175
+#define	MSR_SYSENTER_EIP_MSR	0x176
+#define	MSR_MCG_CAP		0x179
+#define	MSR_MCG_STATUS		0x17a
+#define	MSR_MCG_CTL		0x17b
+#define	MSR_EVNTSEL0		0x186
+#define	MSR_EVNTSEL1		0x187
+#define	MSR_THERM_CONTROL	0x19a
+#define	MSR_THERM_INTERRUPT	0x19b
+#define	MSR_THERM_STATUS	0x19c
+#define	MSR_IA32_MISC_ENABLE	0x1a0
+#define	MSR_IA32_TEMPERATURE_TARGET	0x1a2
+#define	MSR_TURBO_RATIO_LIMIT	0x1ad
+#define	MSR_TURBO_RATIO_LIMIT1	0x1ae
+#define	MSR_DEBUGCTLMSR		0x1d9
+#define	MSR_LASTBRANCHFROMIP	0x1db
+#define	MSR_LASTBRANCHTOIP	0x1dc
+#define	MSR_LASTINTFROMIP	0x1dd
+#define	MSR_LASTINTTOIP		0x1de
+#define	MSR_ROB_CR_BKUPTMPDR6	0x1e0
+#define	MSR_MTRRVarBase		0x200
+#define	MSR_MTRR64kBase		0x250
+#define	MSR_MTRR16kBase		0x258
+#define	MSR_MTRR4kBase		0x268
+#define	MSR_PAT			0x277
+#define	MSR_MC0_CTL2		0x280
+#define	MSR_MTRRdefType		0x2ff
+#define	MSR_MC0_CTL		0x400
+#define	MSR_MC0_STATUS		0x401
+#define	MSR_MC0_ADDR		0x402
+#define	MSR_MC0_MISC		0x403
+#define	MSR_MC1_CTL		0x404
+#define	MSR_MC1_STATUS		0x405
+#define	MSR_MC1_ADDR		0x406
+#define	MSR_MC1_MISC		0x407
+#define	MSR_MC2_CTL		0x408
+#define	MSR_MC2_STATUS		0x409
+#define	MSR_MC2_ADDR		0x40a
+#define	MSR_MC2_MISC		0x40b
+#define	MSR_MC3_CTL		0x40c
+#define	MSR_MC3_STATUS		0x40d
+#define	MSR_MC3_ADDR		0x40e
+#define	MSR_MC3_MISC		0x40f
+#define	MSR_MC4_CTL		0x410
+#define	MSR_MC4_STATUS		0x411
+#define	MSR_MC4_ADDR		0x412
+#define	MSR_MC4_MISC		0x413
+#define	MSR_RAPL_POWER_UNIT	0x606
+#define	MSR_PKG_ENERGY_STATUS	0x611
+#define	MSR_DRAM_ENERGY_STATUS	0x619
+#define	MSR_PP0_ENERGY_STATUS	0x639
+#define	MSR_PP1_ENERGY_STATUS	0x641
+#define	MSR_PPERF		0x64e
+#define	MSR_TSC_DEADLINE	0x6e0	/* Writes are not serializing */
+#define	MSR_IA32_PM_ENABLE	0x770
+#define	MSR_IA32_HWP_CAPABILITIES	0x771
+#define	MSR_IA32_HWP_REQUEST_PKG	0x772
+#define	MSR_IA32_HWP_INTERRUPT		0x773
+#define	MSR_IA32_HWP_REQUEST	0x774
+#define	MSR_IA32_HWP_STATUS	0x777
+
+/*
+ * VMX MSRs
+ */
+#define	MSR_VMX_BASIC		0x480
+#define	MSR_VMX_PINBASED_CTLS	0x481
+#define	MSR_VMX_PROCBASED_CTLS	0x482
+#define	MSR_VMX_EXIT_CTLS	0x483
+#define	MSR_VMX_ENTRY_CTLS	0x484
+#define	MSR_VMX_CR0_FIXED0	0x486
+#define	MSR_VMX_CR0_FIXED1	0x487
+#define	MSR_VMX_CR4_FIXED0	0x488
+#define	MSR_VMX_CR4_FIXED1	0x489
+#define	MSR_VMX_PROCBASED_CTLS2	0x48b
+#define	MSR_VMX_EPT_VPID_CAP	0x48c
+#define	MSR_VMX_TRUE_PINBASED_CTLS	0x48d
+#define	MSR_VMX_TRUE_PROCBASED_CTLS	0x48e
+#define	MSR_VMX_TRUE_EXIT_CTLS	0x48f
+#define	MSR_VMX_TRUE_ENTRY_CTLS	0x490
+
+/*
+ * X2APIC MSRs.
+ * Writes are not serializing.
+ */
+#define	MSR_APIC_000		0x800
+#define	MSR_APIC_ID		0x802
+#define	MSR_APIC_VERSION	0x803
+#define	MSR_APIC_TPR		0x808
+#define	MSR_APIC_EOI		0x80b
+#define	MSR_APIC_LDR		0x80d
+#define	MSR_APIC_SVR		0x80f
+#define	MSR_APIC_ISR0		0x810
+#define	MSR_APIC_ISR1		0x811
+#define	MSR_APIC_ISR2		0x812
+#define	MSR_APIC_ISR3		0x813
+#define	MSR_APIC_ISR4		0x814
+#define	MSR_APIC_ISR5		0x815
+#define	MSR_APIC_ISR6		0x816
+#define	MSR_APIC_ISR7		0x817
+#define	MSR_APIC_TMR0		0x818
+#define	MSR_APIC_IRR0		0x820
+#define	MSR_APIC_ESR		0x828
+#define	MSR_APIC_LVT_CMCI	0x82F
+#define	MSR_APIC_ICR		0x830
+#define	MSR_APIC_LVT_TIMER	0x832
+#define	MSR_APIC_LVT_THERMAL	0x833
+#define	MSR_APIC_LVT_PCINT	0x834
+#define	MSR_APIC_LVT_LINT0	0x835
+#define	MSR_APIC_LVT_LINT1	0x836
+#define	MSR_APIC_LVT_ERROR	0x837
+#define	MSR_APIC_ICR_TIMER	0x838
+#define	MSR_APIC_CCR_TIMER	0x839
+#define	MSR_APIC_DCR_TIMER	0x83e
+#define	MSR_APIC_SELF_IPI	0x83f
+
+#define	MSR_IA32_XSS		0xda0
+
+/*
+ * Intel Processor Trace (PT) MSRs.
+ */
+#define	MSR_IA32_RTIT_OUTPUT_BASE	0x560	/* Trace Output Base Register (R/W) */
+#define	MSR_IA32_RTIT_OUTPUT_MASK_PTRS	0x561	/* Trace Output Mask Pointers Register (R/W) */
+#define	MSR_IA32_RTIT_CTL		0x570	/* Trace Control Register (R/W) */
+#define	 RTIT_CTL_TRACEEN	(1 << 0)
+#define	 RTIT_CTL_CYCEN		(1 << 1)
+#define	 RTIT_CTL_OS		(1 << 2)
+#define	 RTIT_CTL_USER		(1 << 3)
+#define	 RTIT_CTL_PWREVTEN	(1 << 4)
+#define	 RTIT_CTL_FUPONPTW	(1 << 5)
+#define	 RTIT_CTL_FABRICEN	(1 << 6)
+#define	 RTIT_CTL_CR3FILTER	(1 << 7)
+#define	 RTIT_CTL_TOPA		(1 << 8)
+#define	 RTIT_CTL_MTCEN		(1 << 9)
+#define	 RTIT_CTL_TSCEN		(1 << 10)
+#define	 RTIT_CTL_DISRETC	(1 << 11)
+#define	 RTIT_CTL_PTWEN		(1 << 12)
+#define	 RTIT_CTL_BRANCHEN	(1 << 13)
+#define	 RTIT_CTL_MTC_FREQ_S	14
+#define	 RTIT_CTL_MTC_FREQ(n)	((n) << RTIT_CTL_MTC_FREQ_S)
+#define	 RTIT_CTL_MTC_FREQ_M	(0xf << RTIT_CTL_MTC_FREQ_S)
+#define	 RTIT_CTL_CYC_THRESH_S	19
+#define	 RTIT_CTL_CYC_THRESH_M	(0xf << RTIT_CTL_CYC_THRESH_S)
+#define	 RTIT_CTL_PSB_FREQ_S	24
+#define	 RTIT_CTL_PSB_FREQ_M	(0xf << RTIT_CTL_PSB_FREQ_S)
+#define	 RTIT_CTL_ADDR_CFG_S(n) (32 + (n) * 4)
+#define	 RTIT_CTL_ADDR0_CFG_S	32
+#define	 RTIT_CTL_ADDR0_CFG_M	(0xfULL << RTIT_CTL_ADDR0_CFG_S)
+#define	 RTIT_CTL_ADDR1_CFG_S	36
+#define	 RTIT_CTL_ADDR1_CFG_M	(0xfULL << RTIT_CTL_ADDR1_CFG_S)
+#define	 RTIT_CTL_ADDR2_CFG_S	40
+#define	 RTIT_CTL_ADDR2_CFG_M	(0xfULL << RTIT_CTL_ADDR2_CFG_S)
+#define	 RTIT_CTL_ADDR3_CFG_S	44
+#define	 RTIT_CTL_ADDR3_CFG_M	(0xfULL << RTIT_CTL_ADDR3_CFG_S)
+#define	MSR_IA32_RTIT_STATUS		0x571	/* Tracing Status Register (R/W) */
+#define	 RTIT_STATUS_FILTEREN	(1 << 0)
+#define	 RTIT_STATUS_CONTEXTEN	(1 << 1)
+#define	 RTIT_STATUS_TRIGGEREN	(1 << 2)
+#define	 RTIT_STATUS_ERROR	(1 << 4)
+#define	 RTIT_STATUS_STOPPED	(1 << 5)
+#define	 RTIT_STATUS_PACKETBYTECNT_S	32
+#define	 RTIT_STATUS_PACKETBYTECNT_M	(0x1ffffULL << RTIT_STATUS_PACKETBYTECNT_S)
+#define	MSR_IA32_RTIT_CR3_MATCH		0x572	/* Trace Filter CR3 Match Register (R/W) */
+#define	MSR_IA32_RTIT_ADDR_A(n)		(0x580 + (n) * 2)
+#define	MSR_IA32_RTIT_ADDR_B(n)		(0x581 + (n) * 2)
+#define	MSR_IA32_RTIT_ADDR0_A		0x580	/* Region 0 Start Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR0_B		0x581	/* Region 0 End Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR1_A		0x582	/* Region 1 Start Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR1_B		0x583	/* Region 1 End Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR2_A		0x584	/* Region 2 Start Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR2_B		0x585	/* Region 2 End Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR3_A		0x586	/* Region 3 Start Address (R/W) */
+#define	MSR_IA32_RTIT_ADDR3_B		0x587	/* Region 3 End Address (R/W) */
+
+/* Intel Processor Trace Table of Physical Addresses (ToPA). */
+#define	TOPA_SIZE_S	6
+#define	TOPA_SIZE_M	(0xf << TOPA_SIZE_S)
+#define	TOPA_SIZE_4K	(0 << TOPA_SIZE_S)
+#define	TOPA_SIZE_8K	(1 << TOPA_SIZE_S)
+#define	TOPA_SIZE_16K	(2 << TOPA_SIZE_S)
+#define	TOPA_SIZE_32K	(3 << TOPA_SIZE_S)
+#define	TOPA_SIZE_64K	(4 << TOPA_SIZE_S)
+#define	TOPA_SIZE_128K	(5 << TOPA_SIZE_S)
+#define	TOPA_SIZE_256K	(6 << TOPA_SIZE_S)
+#define	TOPA_SIZE_512K	(7 << TOPA_SIZE_S)
+#define	TOPA_SIZE_1M	(8 << TOPA_SIZE_S)
+#define	TOPA_SIZE_2M	(9 << TOPA_SIZE_S)
+#define	TOPA_SIZE_4M	(10 << TOPA_SIZE_S)
+#define	TOPA_SIZE_8M	(11 << TOPA_SIZE_S)
+#define	TOPA_SIZE_16M	(12 << TOPA_SIZE_S)
+#define	TOPA_SIZE_32M	(13 << TOPA_SIZE_S)
+#define	TOPA_SIZE_64M	(14 << TOPA_SIZE_S)
+#define	TOPA_SIZE_128M	(15 << TOPA_SIZE_S)
+#define	TOPA_STOP	(1 << 4)
+#define	TOPA_INT	(1 << 2)
+#define	TOPA_END	(1 << 0)
+
+/*
+ * Constants related to MSR's.
+ */
+#define	APICBASE_RESERVED	0x000002ff
+#define	APICBASE_BSP		0x00000100
+#define	APICBASE_X2APIC		0x00000400
+#define	APICBASE_ENABLED	0x00000800
+#define	APICBASE_ADDRESS	0xfffff000
+
+/* MSR_IA32_FEATURE_CONTROL related */
+#define	IA32_FEATURE_CONTROL_LOCK	0x01	/* lock bit */
+#define	IA32_FEATURE_CONTROL_SMX_EN	0x02	/* enable VMX inside SMX */
+#define	IA32_FEATURE_CONTROL_VMX_EN	0x04	/* enable VMX outside SMX */
+
+/* MSR IA32_MISC_ENABLE */
+#define	IA32_MISC_EN_FASTSTR	0x0000000000000001ULL
+#define	IA32_MISC_EN_ATCCE	0x0000000000000008ULL
+#define	IA32_MISC_EN_PERFMON	0x0000000000000080ULL
+#define	IA32_MISC_EN_PEBSU	0x0000000000001000ULL
+#define	IA32_MISC_EN_ESSTE	0x0000000000010000ULL
+#define	IA32_MISC_EN_MONE	0x0000000000040000ULL
+#define	IA32_MISC_EN_LIMCPUID	0x0000000000400000ULL
+#define	IA32_MISC_EN_xTPRD	0x0000000000800000ULL
+#define	IA32_MISC_EN_XDD	0x0000000400000000ULL
+
+/*
+ * IA32_SPEC_CTRL and IA32_PRED_CMD MSRs are described in the Intel'
+ * document 336996-001 Speculative Execution Side Channel Mitigations.
+ *
+ * AMD uses the same MSRs and bit definitions, as described in 111006-B
+ * "Indirect Branch Control Extension" and 124441 "Speculative Store Bypass
+ * Disable."
+ */
+/* MSR IA32_SPEC_CTRL */
+#define	IA32_SPEC_CTRL_IBRS	0x00000001
+#define	IA32_SPEC_CTRL_STIBP	0x00000002
+#define	IA32_SPEC_CTRL_SSBD	0x00000004
+
+/* MSR IA32_PRED_CMD */
+#define	IA32_PRED_CMD_IBPB_BARRIER	0x0000000000000001ULL
+
+/* MSR IA32_FLUSH_CMD */
+#define	IA32_FLUSH_CMD_L1D	0x00000001
+
+/* MSR IA32_HWP_CAPABILITIES */
+#define	IA32_HWP_CAPABILITIES_HIGHEST_PERFORMANCE(x)	(((x) >> 0) & 0xff)
+#define	IA32_HWP_CAPABILITIES_GUARANTEED_PERFORMANCE(x)	(((x) >> 8) & 0xff)
+#define	IA32_HWP_CAPABILITIES_EFFICIENT_PERFORMANCE(x)	(((x) >> 16) & 0xff)
+#define	IA32_HWP_CAPABILITIES_LOWEST_PERFORMANCE(x)	(((x) >> 24) & 0xff)
+
+/* MSR IA32_HWP_REQUEST */
+#define	IA32_HWP_REQUEST_MINIMUM_VALID			(1ULL << 63)
+#define	IA32_HWP_REQUEST_MAXIMUM_VALID			(1ULL << 62)
+#define	IA32_HWP_REQUEST_DESIRED_VALID			(1ULL << 61)
+#define	IA32_HWP_REQUEST_EPP_VALID 			(1ULL << 60)
+#define	IA32_HWP_REQUEST_ACTIVITY_WINDOW_VALID		(1ULL << 59)
+#define	IA32_HWP_REQUEST_PACKAGE_CONTROL		(1ULL << 42)
+#define	IA32_HWP_ACTIVITY_WINDOW			(0x3ffULL << 32)
+#define	IA32_HWP_REQUEST_ENERGY_PERFORMANCE_PREFERENCE	(0xffULL << 24)
+#define	IA32_HWP_DESIRED_PERFORMANCE			(0xffULL << 16)
+#define	IA32_HWP_REQUEST_MAXIMUM_PERFORMANCE		(0xffULL << 8)
+#define	IA32_HWP_MINIMUM_PERFORMANCE			(0xffULL << 0)
+
+/*
+ * PAT modes.
+ */
+#define	PAT_UNCACHEABLE		0x00
+#define	PAT_WRITE_COMBINING	0x01
+#define	PAT_WRITE_THROUGH	0x04
+#define	PAT_WRITE_PROTECTED	0x05
+#define	PAT_WRITE_BACK		0x06
+#define	PAT_UNCACHED		0x07
+#define	PAT_VALUE(i, m)		((long long)(m) << (8 * (i)))
+#define	PAT_MASK(i)		PAT_VALUE(i, 0xff)
+
+/*
+ * Constants related to MTRRs
+ */
+#define	MTRR_UNCACHEABLE	0x00
+#define	MTRR_WRITE_COMBINING	0x01
+#define	MTRR_WRITE_THROUGH	0x04
+#define	MTRR_WRITE_PROTECTED	0x05
+#define	MTRR_WRITE_BACK		0x06
+#define	MTRR_N64K		8	/* numbers of fixed-size entries */
+#define	MTRR_N16K		16
+#define	MTRR_N4K		64
+#define	MTRR_CAP_WC		0x0000000000000400
+#define	MTRR_CAP_FIXED		0x0000000000000100
+#define	MTRR_CAP_VCNT		0x00000000000000ff
+#define	MTRR_DEF_ENABLE		0x0000000000000800
+#define	MTRR_DEF_FIXED_ENABLE	0x0000000000000400
+#define	MTRR_DEF_TYPE		0x00000000000000ff
+#define	MTRR_PHYSBASE_PHYSBASE	0x000ffffffffff000
+#define	MTRR_PHYSBASE_TYPE	0x00000000000000ff
+#define	MTRR_PHYSMASK_PHYSMASK	0x000ffffffffff000
+#define	MTRR_PHYSMASK_VALID	0x0000000000000800
+
+/*
+ * Cyrix configuration registers, accessible as IO ports.
+ */
+#define	CCR0			0xc0	/* Configuration control register 0 */
+#define	CCR0_NC0		0x01	/* First 64K of each 1M memory region is
+								   non-cacheable */
+#define	CCR0_NC1		0x02	/* 640K-1M region is non-cacheable */
+#define	CCR0_A20M		0x04	/* Enables A20M# input pin */
+#define	CCR0_KEN		0x08	/* Enables KEN# input pin */
+#define	CCR0_FLUSH		0x10	/* Enables FLUSH# input pin */
+#define	CCR0_BARB		0x20	/* Flushes internal cache when entering hold
+								   state */
+#define	CCR0_CO			0x40	/* Cache org: 1=direct mapped, 0=2x set
+								   assoc */
+#define	CCR0_SUSPEND	0x80	/* Enables SUSP# and SUSPA# pins */
+
+#define	CCR1			0xc1	/* Configuration control register 1 */
+#define	CCR1_RPL		0x01	/* Enables RPLSET and RPLVAL# pins */
+#define	CCR1_SMI		0x02	/* Enables SMM pins */
+#define	CCR1_SMAC		0x04	/* System management memory access */
+#define	CCR1_MMAC		0x08	/* Main memory access */
+#define	CCR1_NO_LOCK	0x10	/* Negate LOCK# */
+#define	CCR1_SM3		0x80	/* SMM address space address region 3 */
+
+#define	CCR2			0xc2
+#define	CCR2_WB			0x02	/* Enables WB cache interface pins */
+#define	CCR2_SADS		0x02	/* Slow ADS */
+#define	CCR2_LOCK_NW	0x04	/* LOCK NW Bit */
+#define	CCR2_SUSP_HLT	0x08	/* Suspend on HALT */
+#define	CCR2_WT1		0x10	/* WT region 1 */
+#define	CCR2_WPR1		0x10	/* Write-protect region 1 */
+#define	CCR2_BARB		0x20	/* Flushes write-back cache when entering
+								   hold state. */
+#define	CCR2_BWRT		0x40	/* Enables burst write cycles */
+#define	CCR2_USE_SUSP	0x80	/* Enables suspend pins */
+
+#define	CCR3			0xc3
+#define	CCR3_SMILOCK	0x01	/* SMM register lock */
+#define	CCR3_NMI		0x02	/* Enables NMI during SMM */
+#define	CCR3_LINBRST	0x04	/* Linear address burst cycles */
+#define	CCR3_SMMMODE	0x08	/* SMM Mode */
+#define	CCR3_MAPEN0		0x10	/* Enables Map0 */
+#define	CCR3_MAPEN1		0x20	/* Enables Map1 */
+#define	CCR3_MAPEN2		0x40	/* Enables Map2 */
+#define	CCR3_MAPEN3		0x80	/* Enables Map3 */
+
+#define	CCR4			0xe8
+#define	CCR4_IOMASK		0x07
+#define	CCR4_MEM		0x08	/* Enables momory bypassing */
+#define	CCR4_DTE		0x10	/* Enables directory table entry cache */
+#define	CCR4_FASTFPE	0x20	/* Fast FPU exception */
+#define	CCR4_CPUID		0x80	/* Enables CPUID instruction */
+
+#define	CCR5			0xe9
+#define	CCR5_WT_ALLOC	0x01	/* Write-through allocate */
+#define	CCR5_SLOP		0x02	/* LOOP instruction slowed down */
+#define	CCR5_LBR1		0x10	/* Local bus region 1 */
+#define	CCR5_ARREN		0x20	/* Enables ARR region */
+
+#define	CCR6			0xea
+
+#define	CCR7			0xeb
+
+/* Performance Control Register (5x86 only). */
+#define	PCR0			0x20
+#define	PCR0_RSTK		0x01	/* Enables return stack */
+#define	PCR0_BTB		0x02	/* Enables branch target buffer */
+#define	PCR0_LOOP		0x04	/* Enables loop */
+#define	PCR0_AIS		0x08	/* Enables all instrcutions stalled to
+								   serialize pipe. */
+#define	PCR0_MLR		0x10	/* Enables reordering of misaligned loads */
+#define	PCR0_BTBRT		0x40	/* Enables BTB test register. */
+#define	PCR0_LSSER		0x80	/* Disable reorder */
+
+/* Device Identification Registers */
+#define	DIR0			0xfe
+#define	DIR1			0xff
+
+/*
+ * Machine Check register constants.
+ */
+#define	MCG_CAP_COUNT		0x000000ff
+#define	MCG_CAP_CTL_P		0x00000100
+#define	MCG_CAP_EXT_P		0x00000200
+#define	MCG_CAP_CMCI_P		0x00000400
+#define	MCG_CAP_TES_P		0x00000800
+#define	MCG_CAP_EXT_CNT		0x00ff0000
+#define	MCG_CAP_SER_P		0x01000000
+#define	MCG_STATUS_RIPV		0x00000001
+#define	MCG_STATUS_EIPV		0x00000002
+#define	MCG_STATUS_MCIP		0x00000004
+#define	MCG_CTL_ENABLE		0xffffffffffffffff
+#define	MCG_CTL_DISABLE		0x0000000000000000
+#define	MSR_MC_CTL(x)		(MSR_MC0_CTL + (x) * 4)
+#define	MSR_MC_STATUS(x)	(MSR_MC0_STATUS + (x) * 4)
+#define	MSR_MC_ADDR(x)		(MSR_MC0_ADDR + (x) * 4)
+#define	MSR_MC_MISC(x)		(MSR_MC0_MISC + (x) * 4)
+#define	MSR_MC_CTL2(x)		(MSR_MC0_CTL2 + (x))	/* If MCG_CAP_CMCI_P */
+#define	MC_STATUS_MCA_ERROR	0x000000000000ffff
+#define	MC_STATUS_MODEL_ERROR	0x00000000ffff0000
+#define	MC_STATUS_OTHER_INFO	0x01ffffff00000000
+#define	MC_STATUS_COR_COUNT	0x001fffc000000000	/* If MCG_CAP_CMCI_P */
+#define	MC_STATUS_TES_STATUS	0x0060000000000000	/* If MCG_CAP_TES_P */
+#define	MC_STATUS_AR		0x0080000000000000	/* If MCG_CAP_TES_P */
+#define	MC_STATUS_S		0x0100000000000000	/* If MCG_CAP_TES_P */
+#define	MC_STATUS_PCC		0x0200000000000000
+#define	MC_STATUS_ADDRV		0x0400000000000000
+#define	MC_STATUS_MISCV		0x0800000000000000
+#define	MC_STATUS_EN		0x1000000000000000
+#define	MC_STATUS_UC		0x2000000000000000
+#define	MC_STATUS_OVER		0x4000000000000000
+#define	MC_STATUS_VAL		0x8000000000000000
+#define	MC_MISC_RA_LSB		0x000000000000003f	/* If MCG_CAP_SER_P */
+#define	MC_MISC_ADDRESS_MODE	0x00000000000001c0	/* If MCG_CAP_SER_P */
+#define	MC_CTL2_THRESHOLD	0x0000000000007fff
+#define	MC_CTL2_CMCI_EN		0x0000000040000000
+#define	MC_AMDNB_BANK		4
+#define	MC_MISC_AMD_VAL		0x8000000000000000	/* Counter presence valid */
+#define	MC_MISC_AMD_CNTP	0x4000000000000000	/* Counter present */
+#define	MC_MISC_AMD_LOCK	0x2000000000000000	/* Register locked */
+#define	MC_MISC_AMD_INTP	0x1000000000000000	/* Int. type can generate interrupts */
+#define	MC_MISC_AMD_LVT_MASK	0x00f0000000000000	/* Extended LVT offset */
+#define	MC_MISC_AMD_LVT_SHIFT	52
+#define	MC_MISC_AMD_CNTEN	0x0008000000000000	/* Counter enabled */
+#define	MC_MISC_AMD_INT_MASK	0x0006000000000000	/* Interrupt type */
+#define	MC_MISC_AMD_INT_LVT	0x0002000000000000	/* Interrupt via Extended LVT */
+#define	MC_MISC_AMD_INT_SMI	0x0004000000000000	/* SMI */
+#define	MC_MISC_AMD_OVERFLOW	0x0001000000000000	/* Counter overflow */
+#define	MC_MISC_AMD_CNT_MASK	0x00000fff00000000	/* Counter value */
+#define	MC_MISC_AMD_CNT_SHIFT	32
+#define	MC_MISC_AMD_CNT_MAX	0xfff
+#define	MC_MISC_AMD_PTR_MASK	0x00000000ff000000	/* Pointer to additional registers */
+#define	MC_MISC_AMD_PTR_SHIFT	24
+
+/* AMD Scalable MCA */
+#define MSR_SMCA_MC0_CTL          0xc0002000
+#define MSR_SMCA_MC0_STATUS       0xc0002001
+#define MSR_SMCA_MC0_ADDR         0xc0002002
+#define MSR_SMCA_MC0_MISC0        0xc0002003
+#define MSR_SMCA_MC_CTL(x)       (MSR_SMCA_MC0_CTL + 0x10 * (x))
+#define MSR_SMCA_MC_STATUS(x)    (MSR_SMCA_MC0_STATUS + 0x10 * (x))
+#define MSR_SMCA_MC_ADDR(x)      (MSR_SMCA_MC0_ADDR + 0x10 * (x))
+#define MSR_SMCA_MC_MISC(x)      (MSR_SMCA_MC0_MISC0 + 0x10 * (x))
+
+/*
+ * The following four 3-byte registers control the non-cacheable regions.
+ * These registers must be written as three separate bytes.
+ *
+ * NCRx+0: A31-A24 of starting address
+ * NCRx+1: A23-A16 of starting address
+ * NCRx+2: A15-A12 of starting address | NCR_SIZE_xx.
+ *
+ * The non-cacheable region's starting address must be aligned to the
+ * size indicated by the NCR_SIZE_xx field.
+ */
+#define	NCR1	0xc4
+#define	NCR2	0xc7
+#define	NCR3	0xca
+#define	NCR4	0xcd
+
+#define	NCR_SIZE_0K	0
+#define	NCR_SIZE_4K	1
+#define	NCR_SIZE_8K	2
+#define	NCR_SIZE_16K	3
+#define	NCR_SIZE_32K	4
+#define	NCR_SIZE_64K	5
+#define	NCR_SIZE_128K	6
+#define	NCR_SIZE_256K	7
+#define	NCR_SIZE_512K	8
+#define	NCR_SIZE_1M	9
+#define	NCR_SIZE_2M	10
+#define	NCR_SIZE_4M	11
+#define	NCR_SIZE_8M	12
+#define	NCR_SIZE_16M	13
+#define	NCR_SIZE_32M	14
+#define	NCR_SIZE_4G	15
+
+/*
+ * The address region registers are used to specify the location and
+ * size for the eight address regions.
+ *
+ * ARRx + 0: A31-A24 of start address
+ * ARRx + 1: A23-A16 of start address
+ * ARRx + 2: A15-A12 of start address | ARR_SIZE_xx
+ */
+#define	ARR0	0xc4
+#define	ARR1	0xc7
+#define	ARR2	0xca
+#define	ARR3	0xcd
+#define	ARR4	0xd0
+#define	ARR5	0xd3
+#define	ARR6	0xd6
+#define	ARR7	0xd9
+
+#define	ARR_SIZE_0K		0
+#define	ARR_SIZE_4K		1
+#define	ARR_SIZE_8K		2
+#define	ARR_SIZE_16K	3
+#define	ARR_SIZE_32K	4
+#define	ARR_SIZE_64K	5
+#define	ARR_SIZE_128K	6
+#define	ARR_SIZE_256K	7
+#define	ARR_SIZE_512K	8
+#define	ARR_SIZE_1M		9
+#define	ARR_SIZE_2M		10
+#define	ARR_SIZE_4M		11
+#define	ARR_SIZE_8M		12
+#define	ARR_SIZE_16M	13
+#define	ARR_SIZE_32M	14
+#define	ARR_SIZE_4G		15
+
+/*
+ * The region control registers specify the attributes associated with
+ * the ARRx addres regions.
+ */
+#define	RCR0	0xdc
+#define	RCR1	0xdd
+#define	RCR2	0xde
+#define	RCR3	0xdf
+#define	RCR4	0xe0
+#define	RCR5	0xe1
+#define	RCR6	0xe2
+#define	RCR7	0xe3
+
+#define	RCR_RCD	0x01	/* Disables caching for ARRx (x = 0-6). */
+#define	RCR_RCE	0x01	/* Enables caching for ARR7. */
+#define	RCR_WWO	0x02	/* Weak write ordering. */
+#define	RCR_WL	0x04	/* Weak locking. */
+#define	RCR_WG	0x08	/* Write gathering. */
+#define	RCR_WT	0x10	/* Write-through. */
+#define	RCR_NLB	0x20	/* LBA# pin is not asserted. */
+
+/* AMD Write Allocate Top-Of-Memory and Control Register */
+#define	AMD_WT_ALLOC_TME	0x40000	/* top-of-memory enable */
+#define	AMD_WT_ALLOC_PRE	0x20000	/* programmable range enable */
+#define	AMD_WT_ALLOC_FRE	0x10000	/* fixed (A0000-FFFFF) range enable */
+
+/* AMD64 MSR's */
+#define	MSR_EFER	0xc0000080	/* extended features */
+#define	MSR_STAR	0xc0000081	/* legacy mode SYSCALL target/cs/ss */
+#define	MSR_LSTAR	0xc0000082	/* long mode SYSCALL target rip */
+#define	MSR_CSTAR	0xc0000083	/* compat mode SYSCALL target rip */
+#define	MSR_SF_MASK	0xc0000084	/* syscall flags mask */
+#define	MSR_FSBASE	0xc0000100	/* base address of the %fs "segment" */
+#define	MSR_GSBASE	0xc0000101	/* base address of the %gs "segment" */
+#define	MSR_KGSBASE	0xc0000102	/* base address of the kernel %gs */
+#define	MSR_TSC_AUX	0xc0000103
+#define	MSR_PERFEVSEL0	0xc0010000
+#define	MSR_PERFEVSEL1	0xc0010001
+#define	MSR_PERFEVSEL2	0xc0010002
+#define	MSR_PERFEVSEL3	0xc0010003
+#define	MSR_K7_PERFCTR0	0xc0010004
+#define	MSR_K7_PERFCTR1	0xc0010005
+#define	MSR_K7_PERFCTR2	0xc0010006
+#define	MSR_K7_PERFCTR3	0xc0010007
+#define	MSR_SYSCFG	0xc0010010
+#define	MSR_HWCR	0xc0010015
+#define	MSR_IORRBASE0	0xc0010016
+#define	MSR_IORRMASK0	0xc0010017
+#define	MSR_IORRBASE1	0xc0010018
+#define	MSR_IORRMASK1	0xc0010019
+#define	MSR_TOP_MEM	0xc001001a	/* boundary for ram below 4G */
+#define	MSR_TOP_MEM2	0xc001001d	/* boundary for ram above 4G */
+#define	MSR_NB_CFG1	0xc001001f	/* NB configuration 1 */
+#define	MSR_K8_UCODE_UPDATE 0xc0010020	/* update microcode */
+#define	MSR_MC0_CTL_MASK 0xc0010044
+#define	MSR_P_STATE_LIMIT 0xc0010061	/* P-state Current Limit Register */
+#define	MSR_P_STATE_CONTROL 0xc0010062	/* P-state Control Register */
+#define	MSR_P_STATE_STATUS 0xc0010063	/* P-state Status Register */
+#define	MSR_P_STATE_CONFIG(n) (0xc0010064 + (n)) /* P-state Config */
+#define	MSR_SMM_ADDR	0xc0010112	/* SMM TSEG base address */
+#define	MSR_SMM_MASK	0xc0010113	/* SMM TSEG address mask */
+#define	MSR_VM_CR	0xc0010114	/* SVM: feature control */
+#define	MSR_VM_HSAVE_PA 0xc0010117	/* SVM: host save area address */
+#define	MSR_AMD_CPUID07	0xc0011002	/* CPUID 07 %ebx override */
+#define	MSR_EXTFEATURES	0xc0011005	/* Extended CPUID Features override */
+#define	MSR_LS_CFG	0xc0011020
+#define	MSR_IC_CFG	0xc0011021	/* Instruction Cache Configuration */
+
+/* MSR_VM_CR related */
+#define	VM_CR_SVMDIS		0x10	/* SVM: disabled by BIOS */
+
+/* VIA ACE crypto featureset: for via_feature_rng */
+#define	VIA_HAS_RNG		1	/* cpu has RNG */
+
+/* VIA ACE crypto featureset: for via_feature_xcrypt */
+#define	VIA_HAS_AES		1	/* cpu has AES */
+#define	VIA_HAS_SHA		2	/* cpu has SHA1 & SHA256 */
+#define	VIA_HAS_MM		4	/* cpu has RSA instructions */
+#define	VIA_HAS_AESCTR		8	/* cpu has AES-CTR instructions */
+
+/* Centaur Extended Feature flags */
+#define	VIA_CPUID_HAS_RNG	0x000004
+#define	VIA_CPUID_DO_RNG	0x000008
+#define	VIA_CPUID_HAS_ACE	0x000040
+#define	VIA_CPUID_DO_ACE	0x000080
+#define	VIA_CPUID_HAS_ACE2	0x000100
+#define	VIA_CPUID_DO_ACE2	0x000200
+#define	VIA_CPUID_HAS_PHE	0x000400
+#define	VIA_CPUID_DO_PHE	0x000800
+#define	VIA_CPUID_HAS_PMM	0x001000
+#define	VIA_CPUID_DO_PMM	0x002000
+
+/* VIA ACE xcrypt-* instruction context control options */
+#define	VIA_CRYPT_CWLO_ROUND_M		0x0000000f
+#define	VIA_CRYPT_CWLO_ALG_M		0x00000070
+#define	VIA_CRYPT_CWLO_ALG_AES		0x00000000
+#define	VIA_CRYPT_CWLO_KEYGEN_M		0x00000080
+#define	VIA_CRYPT_CWLO_KEYGEN_HW	0x00000000
+#define	VIA_CRYPT_CWLO_KEYGEN_SW	0x00000080
+#define	VIA_CRYPT_CWLO_NORMAL		0x00000000
+#define	VIA_CRYPT_CWLO_INTERMEDIATE	0x00000100
+#define	VIA_CRYPT_CWLO_ENCRYPT		0x00000000
+#define	VIA_CRYPT_CWLO_DECRYPT		0x00000200
+#define	VIA_CRYPT_CWLO_KEY128		0x0000000a	/* 128bit, 10 rds */
+#define	VIA_CRYPT_CWLO_KEY192		0x0000040c	/* 192bit, 12 rds */
+#define	VIA_CRYPT_CWLO_KEY256		0x0000080e	/* 256bit, 15 rds */
+
+#endif /* !_MACHINE_SPECIALREG_H_ */
diff --git a/rtemsbsd/include/x86/x86_var.h b/rtemsbsd/include/x86/x86_var.h
new file mode 100644
index 0000000..2028d73
--- /dev/null
+++ b/rtemsbsd/include/x86/x86_var.h
@@ -0,0 +1,145 @@
+/*-
+ * Copyright (c) 1995 Bruce D. Evans.
+ * 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _X86_X86_VAR_H_
+#define	_X86_X86_VAR_H_
+
+/*
+ * Miscellaneous machine-dependent declarations.
+ */
+
+extern	long	Maxmem;
+extern	u_int	basemem;
+extern	int	busdma_swi_pending;
+extern	u_int	cpu_exthigh;
+extern	u_int	cpu_feature;
+extern	u_int	cpu_feature2;
+extern	u_int	amd_feature;
+extern	u_int	amd_feature2;
+extern	u_int	amd_rascap;
+extern	u_int	amd_pminfo;
+extern	u_int	amd_extended_feature_extensions;
+extern	u_int	via_feature_rng;
+extern	u_int	via_feature_xcrypt;
+extern	u_int	cpu_clflush_line_size;
+extern	u_int	cpu_stdext_feature;
+extern	u_int	cpu_stdext_feature2;
+extern	u_int	cpu_stdext_feature3;
+extern	uint64_t cpu_ia32_arch_caps;
+extern	u_int	cpu_fxsr;
+extern	u_int	cpu_high;
+extern	u_int	cpu_id;
+extern	u_int	cpu_max_ext_state_size;
+extern	u_int	cpu_mxcsr_mask;
+extern	u_int	cpu_procinfo;
+extern	u_int	cpu_procinfo2;
+extern	char	cpu_vendor[];
+extern	u_int	cpu_vendor_id;
+extern	u_int	cpu_mon_mwait_flags;
+extern	u_int	cpu_mon_min_size;
+extern	u_int	cpu_mon_max_size;
+extern	u_int	cpu_maxphyaddr;
+extern	char	ctx_switch_xsave[];
+extern	u_int	hv_base;
+extern	u_int	hv_high;
+extern	char	hv_vendor[];
+extern	char	kstack[];
+extern	char	sigcode[];
+extern	int	szsigcode;
+extern	int	vm_page_dump_size;
+extern	int	workaround_erratum383;
+extern	int	_udatasel;
+extern	int	_ucodesel;
+extern	int	_ucode32sel;
+extern	int	_ufssel;
+extern	int	_ugssel;
+extern	int	use_xsave;
+extern	uint64_t xsave_mask;
+extern	u_int	max_apic_id;
+extern	int	i386_read_exec;
+extern	int	pti;
+extern	int	hw_ibrs_active;
+extern	int	hw_mds_disable;
+extern	int	hw_ssb_active;
+
+struct	pcb;
+struct	thread;
+struct	reg;
+struct	fpreg;
+struct  dbreg;
+struct	dumperinfo;
+struct	trapframe;
+
+/*
+ * The interface type of the interrupt handler entry point cannot be
+ * expressed in C.  Use simplest non-variadic function type as an
+ * approximation.
+ */
+typedef void alias_for_inthand_t(void);
+
+bool	acpi_get_fadt_bootflags(uint16_t *flagsp);
+void	*alloc_fpusave(int flags);
+void	busdma_swi(void);
+vm_paddr_t cpu_getmaxphyaddr(void);
+bool	cpu_mwait_usable(void);
+void	cpu_probe_amdc1e(void);
+void	cpu_setregs(void);
+bool	disable_wp(void);
+void	restore_wp(bool old_wp);
+void	dump_add_page(vm_paddr_t);
+void	dump_drop_page(vm_paddr_t);
+void	finishidentcpu(void);
+void	identify_cpu1(void);
+void	identify_cpu2(void);
+void	identify_cpu_fixup_bsp(void);
+void	identify_hypervisor(void);
+void	initializecpu(void);
+void	initializecpucache(void);
+bool	fix_cpuid(void);
+void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
+int	is_physical_memory(vm_paddr_t addr);
+int	isa_nmi(int cd);
+void	handle_ibrs_entry(void);
+void	handle_ibrs_exit(void);
+void	hw_ibrs_recalculate(void);
+void	hw_mds_recalculate(void);
+void	hw_ssb_recalculate(bool all_cpus);
+void	nmi_call_kdb(u_int cpu, u_int type, struct trapframe *frame);
+void	nmi_call_kdb_smp(u_int type, struct trapframe *frame);
+void	nmi_handle_intr(u_int type, struct trapframe *frame);
+void	pagecopy(void *from, void *to);
+void	printcpuinfo(void);
+int	pti_get_default(void);
+int	user_dbreg_trap(register_t dr6);
+int	minidumpsys(struct dumperinfo *);
+struct pcb *get_pcb_td(struct thread *td);
+
+#endif



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