xnu-6153.141.1.tar.gz

[apple/xnu.git] / osfmk / mach / i386 / vm_param.h

diff --git a/osfmk/mach/i386/vm_param.h b/osfmk/mach/i386/vm_param.h
index 965e596aec996ee66943853d4729d22a720d45a1..f140978d7e87ab221983285cbb55f2d908800fda 100644 (file)
--- a/osfmk/mach/i386/vm_param.h
+++ b/osfmk/mach/i386/vm_param.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.

- * 
+ *

  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,39 +22,39 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */

-/* 
+/*

  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  * All Rights Reserved.
  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  * All Rights Reserved.

- * 
+ *

  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.

- * 
+ *

  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.

- * 
+ *

  * Carnegie Mellon requests users of this software to return to
  * Carnegie Mellon requests users of this software to return to

- * 
+ *

  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890

- * 
+ *

  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
 
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
 

-/* 
+/*

  * Copyright (c) 1994 The University of Utah and
  * the Computer Systems Laboratory at the University of Utah (CSL).
  * All rights reserved.
  * Copyright (c) 1994 The University of Utah and
  * the Computer Systems Laboratory at the University of Utah (CSL).
  * All rights reserved.


@@ -87,17 +87,17 @@
  *     them.
  */
 
  *     them.
  */
 

-#ifndef        _MACH_I386_VM_PARAM_H_
+#ifndef _MACH_I386_VM_PARAM_H_

 #define _MACH_I386_VM_PARAM_H_
 
 #define _MACH_I386_VM_PARAM_H_
 

-#define BYTE_SIZE              8               /* byte size in bits */
+#define BYTE_SIZE               8               /* byte size in bits */

 
 

-#define I386_PGBYTES           4096            /* bytes per 80386 page */
-#define I386_PGSHIFT           12              /* bitshift for pages */
+#define I386_PGBYTES            4096            /* bytes per 80386 page */
+#define I386_PGSHIFT            12              /* bitshift for pages */

 
 

-#define        PAGE_SIZE               I386_PGBYTES
-#define        PAGE_SHIFT              I386_PGSHIFT
-#define        PAGE_MASK               (PAGE_SIZE - 1)
+#define PAGE_SIZE               I386_PGBYTES
+#define PAGE_SHIFT              I386_PGSHIFT
+#define PAGE_MASK               (PAGE_SIZE - 1)

 
 #define PAGE_MAX_SHIFT          PAGE_SHIFT
 #define PAGE_MAX_SIZE           PAGE_SIZE
 
 #define PAGE_MAX_SHIFT          PAGE_SHIFT
 #define PAGE_MAX_SIZE           PAGE_SIZE


@@ -107,19 +107,19 @@
 #define PAGE_MIN_SIZE           PAGE_SIZE
 #define PAGE_MIN_MASK           PAGE_MASK
 
 #define PAGE_MIN_SIZE           PAGE_SIZE
 #define PAGE_MIN_MASK           PAGE_MASK
 

-#define I386_LPGBYTES          2*1024*1024     /* bytes per large page */
-#define I386_LPGSHIFT          21              /* bitshift for large pages */
-#define I386_LPGMASK           (I386_LPGBYTES-1)
+#define I386_LPGBYTES           2*1024*1024     /* bytes per large page */
+#define I386_LPGSHIFT           21              /* bitshift for large pages */
+#define I386_LPGMASK            (I386_LPGBYTES-1)

 
 /*
  *     Convert bytes to pages and convert pages to bytes.
  *     No rounding is used.
  */
 
 
 /*
  *     Convert bytes to pages and convert pages to bytes.
  *     No rounding is used.
  */
 

-#define i386_btop(x)           ((ppnum_t)((x) >> I386_PGSHIFT))
-#define machine_btop(x)                i386_btop(x)
-#define i386_ptob(x)           (((pmap_paddr_t)(x)) << I386_PGSHIFT)
-#define machine_ptob(x)                i386_ptob(x)
+#define i386_btop(x)            ((ppnum_t)((x) >> I386_PGSHIFT))
+#define machine_btop(x)         i386_btop(x)
+#define i386_ptob(x)            (((pmap_paddr_t)(x)) << I386_PGSHIFT)
+#define machine_ptob(x)         i386_ptob(x)

 
 /*
  *     Round off or truncate to the nearest page.  These will work
 
 /*
  *     Round off or truncate to the nearest page.  These will work


@@ -127,25 +127,29 @@
  *     bytes.
  */
 
  *     bytes.
  */
 

-#define i386_round_page(x)     ((((pmap_paddr_t)(x)) + I386_PGBYTES - 1) & \
-                                       ~(I386_PGBYTES-1))
-#define i386_trunc_page(x)     (((pmap_paddr_t)(x)) & ~(I386_PGBYTES-1))
+#define i386_round_page(x)      ((((pmap_paddr_t)(x)) + I386_PGBYTES - 1) & \
+                                       ~(I386_PGBYTES-1))
+#define i386_trunc_page(x)      (((pmap_paddr_t)(x)) & ~(I386_PGBYTES-1))

 
 
 
 
 
 

-#define VM_MIN_ADDRESS64       ((user_addr_t) 0x0000000000000000ULL)
+#define VM_MIN_ADDRESS64        ((user_addr_t) 0x0000000000000000ULL)

 /*
  * default top of user stack... it grows down from here
  */
 /*
  * default top of user stack... it grows down from here
  */

-#define VM_USRSTACK64          ((user_addr_t) 0x00007FFF5FC00000ULL)
-#define VM_DYLD64              ((user_addr_t) 0x00007FFF5FC00000ULL)
-#define VM_LIB64_SHR_DATA      ((user_addr_t) 0x00007FFF60000000ULL)
-#define VM_LIB64_SHR_TEXT      ((user_addr_t) 0x00007FFF80000000ULL)
+#define VM_USRSTACK64           ((user_addr_t) 0x00007FFEEFC00000ULL)
+
+/*
+ * XXX TODO: Obsolete?
+ */
+#define VM_DYLD64               ((user_addr_t) 0x00007FFF5FC00000ULL)
+#define VM_LIB64_SHR_DATA       ((user_addr_t) 0x00007FFF60000000ULL)
+#define VM_LIB64_SHR_TEXT       ((user_addr_t) 0x00007FFF80000000ULL)

 /*
  * the end of the usable user address space , for now about 47 bits.
  * the 64 bit commpage is past the end of this
  */
 /*
  * the end of the usable user address space , for now about 47 bits.
  * the 64 bit commpage is past the end of this
  */

-#define VM_MAX_PAGE_ADDRESS    ((user_addr_t) 0x00007FFFFFE00000ULL)
+#define VM_MAX_PAGE_ADDRESS     ((user_addr_t) 0x00007FFFFFE00000ULL)

 /*
  * canonical end of user address space for limits checking
  */
 /*
  * canonical end of user address space for limits checking
  */


@@ -153,32 +157,31 @@
 
 
 /* system-wide values */
 
 
 /* system-wide values */

-#define MACH_VM_MIN_ADDRESS            ((mach_vm_offset_t) 0)
-#define MACH_VM_MAX_ADDRESS            ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
+#define MACH_VM_MIN_ADDRESS             ((mach_vm_offset_t) 0)
+#define MACH_VM_MAX_ADDRESS             ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)

 
 /* process-relative values (all 32-bit legacy only for now) */
 
 /* process-relative values (all 32-bit legacy only for now) */

-#define VM_MIN_ADDRESS         ((vm_offset_t) 0)
-#define VM_USRSTACK32          ((vm_offset_t) 0xC0000000)      /* ASLR slides stack down by up to 1 MB */
-#define VM_MAX_ADDRESS         ((vm_offset_t) 0xFFE00000)
+#define VM_MIN_ADDRESS          ((vm_offset_t) 0)
+#define VM_USRSTACK32           ((vm_offset_t) 0xC0000000)      /* ASLR slides stack down by up to 1 MB */
+#define VM_MAX_ADDRESS          ((vm_offset_t) 0xFFE00000)

 
 
 
 

-#ifdef KERNEL_PRIVATE 
+#ifdef  KERNEL_PRIVATE

 
 #define TEST_PAGE_SIZE_16K      FALSE
 #define TEST_PAGE_SIZE_4K       TRUE
 
 /* Kernel-wide values */
 
 #define TEST_PAGE_SIZE_16K      FALSE
 #define TEST_PAGE_SIZE_4K       TRUE
 
 /* Kernel-wide values */

-
-#define KB             (1024ULL)               
-#define MB             (1024*KB)
-#define GB             (1024*MB)
+#define KB              (1024ULL)
+#define MB              (1024*KB)
+#define GB              (1024*MB)

 
 /*
  * Maximum physical memory supported.
  */
 
 /*
  * Maximum physical memory supported.
  */

-#define        K32_MAXMEM      (32*GB)
-#define        K64_MAXMEM      (252*GB)
-#define KERNEL_MAXMEM  K64_MAXMEM
+#define K32_MAXMEM      (32*GB)
+#define K64_MAXMEM      (1536*GB)
+#define KERNEL_MAXMEM   K64_MAXMEM

 
 /*
  * XXX
 
 /*
  * XXX


@@ -190,30 +193,44 @@
 
 
 #define KERNEL_IMAGE_TO_PHYS(x) (x)
 
 
 #define KERNEL_IMAGE_TO_PHYS(x) (x)

-#define VM_MIN_KERNEL_ADDRESS          ((vm_offset_t) 0xFFFFFF8000000000UL)
-#define VM_MIN_KERNEL_PAGE             ((ppnum_t)0)
-#define VM_MIN_KERNEL_AND_KEXT_ADDRESS (VM_MIN_KERNEL_ADDRESS - 0x80000000ULL)
-#define VM_MAX_KERNEL_ADDRESS          ((vm_offset_t) 0xFFFFFFFFFFFFEFFFUL)
-#define VM_MAX_KERNEL_ADDRESS_EFI32    ((vm_offset_t) 0xFFFFFF80FFFFEFFFUL)
+#define VM_KERNEL_POINTER_SIGNIFICANT_BITS 39
+#define VM_MIN_KERNEL_ADDRESS           ((vm_offset_t) 0xFFFFFF8000000000UL)
+#define VM_MIN_KERNEL_PAGE              ((ppnum_t)0)
+#define VM_MIN_KERNEL_AND_KEXT_ADDRESS  (VM_MIN_KERNEL_ADDRESS - 0x80000000ULL)
+#define VM_MAX_KERNEL_ADDRESS           ((vm_offset_t) 0xFFFFFFFFFFFFEFFFUL)
+#define VM_MAX_KERNEL_ADDRESS_EFI32     ((vm_offset_t) 0xFFFFFF80FFFFEFFFUL)

 #define KEXT_ALLOC_MAX_OFFSET (2 * 1024 * 1024 * 1024UL)
 #define KEXT_ALLOC_BASE(x)  ((x) - KEXT_ALLOC_MAX_OFFSET)
 #define KEXT_ALLOC_SIZE(x)  (KEXT_ALLOC_MAX_OFFSET - (x))
 
 #define KEXT_ALLOC_MAX_OFFSET (2 * 1024 * 1024 * 1024UL)
 #define KEXT_ALLOC_BASE(x)  ((x) - KEXT_ALLOC_MAX_OFFSET)
 #define KEXT_ALLOC_SIZE(x)  (KEXT_ALLOC_MAX_OFFSET - (x))
 

+#define VM_KERNEL_STRIP_PTR(_v) (_v)

 
 

-#define KERNEL_STACK_SIZE      (I386_PGBYTES*4)
+#define VM_KERNEL_ADDRESS(va)   ((((vm_address_t)(va))>=VM_MIN_KERNEL_AND_KEXT_ADDRESS) && \
+                               (((vm_address_t)(va))<=VM_MAX_KERNEL_ADDRESS))

 
 

-#define VM_MAP_MIN_ADDRESS     MACH_VM_MIN_ADDRESS
-#define VM_MAP_MAX_ADDRESS     MACH_VM_MAX_ADDRESS
+#define VM_MAP_MIN_ADDRESS      MACH_VM_MIN_ADDRESS
+#define VM_MAP_MAX_ADDRESS      MACH_VM_MAX_ADDRESS

 
 /* FIXME  - always leave like this? */
 
 /* FIXME  - always leave like this? */

-#define        INTSTACK_SIZE   (I386_PGBYTES*4)
-
-#ifdef MACH_KERNEL_PRIVATE
+#if KASAN
+/* Increase the stack sizes to account for the redzones that get added to every
+ * stack object. */
+# define INTSTACK_SIZE (I386_PGBYTES*4*4)
+# define KERNEL_STACK_SIZE (I386_PGBYTES*4*4)
+#elif DEBUG
+# define INTSTACK_SIZE (I386_PGBYTES*4)
+# define KERNEL_STACK_SIZE (I386_PGBYTES*6)
+#else
+# define INTSTACK_SIZE (I386_PGBYTES*4)
+# define KERNEL_STACK_SIZE (I386_PGBYTES*4)
+#endif
+
+#ifdef  MACH_KERNEL_PRIVATE

 
 /* For implementing legacy 32-bit interfaces */
 
 /* For implementing legacy 32-bit interfaces */

-#define VM32_SUPPORT                   1
-#define VM32_MIN_ADDRESS               ((vm32_offset_t) 0)
-#define VM32_MAX_ADDRESS               ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
+#define VM32_SUPPORT                    1
+#define VM32_MIN_ADDRESS                ((vm32_offset_t) 0)
+#define VM32_MAX_ADDRESS                ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))

 
 /*
  * kalloc() parameters:
 
 /*
  * kalloc() parameters:


@@ -229,13 +246,13 @@
  */
 
 
  */
 
 

-#define        KALLOC_MINSIZE          16      /* minimum allocation size */
-#define        KALLOC_LOG2_MINALIGN    4       /* log2 minimum alignment */
+#define KALLOC_MINSIZE          16      /* minimum allocation size */
+#define KALLOC_LOG2_MINALIGN    4       /* log2 minimum alignment */

 
 

-#define LINEAR_KERNEL_ADDRESS  ((vm_offset_t) 0x00000000)
+#define LINEAR_KERNEL_ADDRESS   ((vm_offset_t) 0x00000000)

 
 

-#define VM_MIN_KERNEL_LOADED_ADDRESS   ((vm_offset_t) 0xFFFFFF8000000000UL)
-#define VM_MAX_KERNEL_LOADED_ADDRESS   ((vm_offset_t) 0xFFFFFF801FFFFFFFUL)
+#define VM_MIN_KERNEL_LOADED_ADDRESS    ((vm_offset_t) 0xFFFFFF8000000000UL)
+#define VM_MAX_KERNEL_LOADED_ADDRESS    ((vm_offset_t) 0xFFFFFF801FFFFFFFUL)

 
 #define NCOPY_WINDOWS 0
 
 
 #define NCOPY_WINDOWS 0
 


@@ -245,30 +262,30 @@
  *     Conversion between 80386 pages and VM pages
  */
 
  *     Conversion between 80386 pages and VM pages
  */
 

-#define trunc_i386_to_vm(p)    (atop(trunc_page(i386_ptob(p))))
-#define round_i386_to_vm(p)    (atop(round_page(i386_ptob(p))))
-#define vm_to_i386(p)          (i386_btop(ptoa(p)))
+#define trunc_i386_to_vm(p)     (atop(trunc_page(i386_ptob(p))))
+#define round_i386_to_vm(p)     (atop(round_page(i386_ptob(p))))
+#define vm_to_i386(p)           (i386_btop(ptoa(p)))

 
 
 
 

-#define PMAP_SET_CACHE_ATTR(mem, object, cache_attr, batch_pmap_op)    \
-       MACRO_BEGIN                                                     \
-               pmap_set_cache_attributes(VM_PAGE_GET_PHYS_PAGE(mem), (cache_attr));    \
-               (object)->set_cache_attr = TRUE;                                \
-               (void) batch_pmap_op;                                   \
-       MACRO_END                                                       
+#define PMAP_SET_CACHE_ATTR(mem, object, cache_attr, batch_pmap_op)     \
+       MACRO_BEGIN                                                     \
+               pmap_set_cache_attributes(VM_PAGE_GET_PHYS_PAGE(mem), (cache_attr));    \
+               (object)->set_cache_attr = TRUE;                                \
+               (void) batch_pmap_op;                                   \
+       MACRO_END

 
 

-#define PMAP_BATCH_SET_CACHE_ATTR(object, user_page_list, cache_attr, num_pages, batch_pmap_op)\
-       MACRO_BEGIN                                                     \
-       (void) user_page_list;                                          \
-       (void) num_pages;                                               \
-       (void) batch_pmap_op;                                           \
+#define PMAP_BATCH_SET_CACHE_ATTR(object, user_page_list, cache_attr, num_pages, batch_pmap_op) \
+       MACRO_BEGIN                                                     \
+       (void) user_page_list;                                          \
+       (void) num_pages;                                               \
+       (void) batch_pmap_op;                                           \

        MACRO_END
 
        MACRO_END
 

-#define IS_USERADDR64_CANONICAL(addr)                  \
-       ((addr) < (VM_MAX_USER_PAGE_ADDRESS + PAGE_SIZE))
+#define IS_USERADDR64_CANONICAL(addr)                   \
+       ((addr) < (VM_MAX_USER_PAGE_ADDRESS))

 
 

-#endif /* MACH_KERNEL_PRIVATE */
+#endif  /* MACH_KERNEL_PRIVATE */

 
 

-#endif /* KERNEL_PRIVATE */
+#endif  /* KERNEL_PRIVATE */

 
 

-#endif /* _MACH_I386_VM_PARAM_H_ */
+#endif  /* _MACH_I386_VM_PARAM_H_ */