/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
+ *
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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@
*/
-/*
+/*
* 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.
- *
+ *
* 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
- *
+ *
* 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.
*/
-/*
+/*
* Copyright (c) 1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
* them.
*/
-#ifndef _MACH_I386_VM_PARAM_H_
+#ifndef _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 PAGE_SIZE I386_PGBYTES
+#define PAGE_SHIFT I386_PGSHIFT
+#define PAGE_MASK (PAGE_SIZE - 1)
-#define I386_PGBYTES 4096 /* bytes per 80386 page */
-#define I386_PGSHIFT 12 /* number of bits to shift for pages */
+#define PAGE_MAX_SHIFT PAGE_SHIFT
+#define PAGE_MAX_SIZE PAGE_SIZE
+#define PAGE_MAX_MASK PAGE_MASK
-#define PAGE_SIZE I386_PGBYTES
-#define PAGE_SHIFT I386_PGSHIFT
-#define PAGE_MASK (PAGE_SIZE - 1)
+#define PAGE_MIN_SHIFT PAGE_SHIFT
+#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)
/*
* Convert bytes to pages and convert pages to bytes.
* No rounding is used.
*/
-#define i386_btop(x) (((pmap_paddr_t)(x)) >> I386_PGSHIFT)
-#define machine_btop(x) i386_btop(x)
-#define i386_ptob(x) (((pmap_paddr_t)(x)) << I386_PGSHIFT)
+#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
* 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)
+/*
+ * default top of user stack... it grows down from here
+ */
+#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
+ */
+#define VM_MAX_PAGE_ADDRESS ((user_addr_t) 0x00007FFFFFE00000ULL)
+/*
+ * canonical end of user address space for limits checking
+ */
+#define VM_MAX_USER_PAGE_ADDRESS ((user_addr_t)0x00007FFFFFFFF000ULL)
-#define VM_MAX_PAGE_ADDRESS 0x00000000C0000000ULL
/* 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) */
-#define VM_MIN_ADDRESS ((vm_offset_t) 0)
-#define VM_MAX_ADDRESS ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
+#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 VM_MIN_KERNEL_ADDRESS ((vm_offset_t) 0xC0000000U)
-#define VM_MAX_KERNEL_ADDRESS ((vm_offset_t) 0xFfffffffU)
-#define KERNEL_STACK_SIZE (I386_PGBYTES*4)
+#define KB (1024ULL)
+#define MB (1024*KB)
+#define GB (1024*MB)
+
+/*
+ * Maximum physical memory supported.
+ */
+#define K32_MAXMEM (32*GB)
+#define K64_MAXMEM (1536*GB)
+#define KERNEL_MAXMEM K64_MAXMEM
+
+/*
+ * XXX
+ * The kernel max VM address is limited to 0xFF3FFFFF for now because
+ * some data structures are explicitly allocated at 0xFF400000 without
+ * VM's knowledge (see osfmk/i386/locore.s for the allocation of PTmap and co.).
+ * We can't let VM allocate memory from there.
+ */
+
+
+#define KERNEL_IMAGE_TO_PHYS(x) (x)
+#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 VM_KERNEL_STRIP_PTR(_v) (_v)
+
+#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
/* FIXME - always leave like this? */
-#define INTSTACK_SIZE (I386_PGBYTES*4)
+#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
+#ifdef MACH_KERNEL_PRIVATE
/* For implementing legacy 32-bit interfaces */
-#define VM32_SUPPORT
-#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:
+ *
+ * Historically kalloc's underlying zones were power-of-2 sizes, with a
+ * KALLOC_MINSIZE of 16 bytes. The allocator ensured that
+ * (sizeof == alignof) >= 16 for all kalloc allocations.
+ *
+ * Today kalloc may use zones with intermediate sizes, constrained by
+ * KALLOC_MINSIZE and a minimum alignment, expressed by KALLOC_LOG2_MINALIGN.
+ *
+ * The common alignment for LP64 is for longs and pointers i.e. 8 bytes.
+ */
+
+
+#define KALLOC_MINSIZE 16 /* minimum allocation size */
+#define KALLOC_LOG2_MINALIGN 4 /* log2 minimum alignment */
+
+#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 NCOPY_WINDOWS 0
-#define LINEAR_KERNEL_ADDRESS ((vm_offset_t) 0xc0000000)
-#define VM_MIN_KERNEL_LOADED_ADDRESS ((vm_offset_t) 0x0c000000U)
-#define VM_MAX_KERNEL_LOADED_ADDRESS ((vm_offset_t) 0x1fffffffU)
/*
* 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 PMAP_ENTER(pmap, virtual_address, page, protection, flags, wired) \
- MACRO_BEGIN \
- pmap_t __pmap = (pmap); \
- vm_page_t __page = (page); \
- vm_prot_t __prot__ = \
- (protection) & ~(page)->page_lock; \
- \
- if (__pmap == kernel_pmap) { \
- __prot__ |= VM_PROT_WRITE; \
- } else { \
- assert(!__page->encrypted); \
- } \
- \
- pmap_enter( \
- __pmap, \
- (virtual_address), \
- __page->phys_page, \
- __prot__, \
- flags, \
- (wired) \
- ); \
+#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
-#endif /* MACH_KERNEL_PRIVATE */
+#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
+
+#define IS_USERADDR64_CANONICAL(addr) \
+ ((addr) < (VM_MAX_USER_PAGE_ADDRESS))
+
+#endif /* MACH_KERNEL_PRIVATE */
-#endif /* KERNEL_PRIVATE */
+#endif /* KERNEL_PRIVATE */
-#endif /* _MACH_I386_VM_PARAM_H_ */
+#endif /* _MACH_I386_VM_PARAM_H_ */
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