/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
+ * 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,
* 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_LICENSE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 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.
*/
* section. [For machine-dependent section, see "machine/pmap.h".]
*/
-#ifndef _VM_PMAP_H_
+#ifndef _VM_PMAP_H_
#define _VM_PMAP_H_
-#include <sys/appleapiopts.h>
-
-#ifdef __APPLE_API_PRIVATE
-
#include <mach/kern_return.h>
#include <mach/vm_param.h>
#include <mach/vm_types.h>
#include <mach/boolean.h>
#include <mach/vm_prot.h>
+#include <kern/trustcache.h>
+
+#ifdef KERNEL_PRIVATE
+
/*
* The following is a description of the interface to the
* machine-dependent "physical map" data structure. The module
* many address spaces.
*/
-#if !defined(MACH_KERNEL_PRIVATE)
-
-typedef void *pmap_t;
-
-#else /* MACH_KERNEL_PRIVATE */
-
-typedef struct pmap *pmap_t;
+/* Copy between a physical page and a virtual address */
+/* LP64todo - switch to vm_map_offset_t when it grows */
+extern kern_return_t copypv(
+ addr64_t source,
+ addr64_t sink,
+ unsigned int size,
+ int which);
+#define cppvPsnk 1
+#define cppvPsnkb 31
+#define cppvPsrc 2
+#define cppvPsrcb 30
+#define cppvFsnk 4
+#define cppvFsnkb 29
+#define cppvFsrc 8
+#define cppvFsrcb 28
+#define cppvNoModSnk 16
+#define cppvNoModSnkb 27
+#define cppvNoRefSrc 32
+#define cppvNoRefSrcb 26
+#define cppvKmap 64 /* Use the kernel's vm_map */
+#define cppvKmapb 25
+
+extern boolean_t pmap_has_managed_page(ppnum_t first, ppnum_t last);
+
+#ifdef MACH_KERNEL_PRIVATE
+
+#include <mach_assert.h>
#include <machine/pmap.h>
+#include <vm/memory_types.h>
/*
* Routines used for initialization.
* There is traditionally also a pmap_bootstrap,
* used very early by machine-dependent code,
* but it is not part of the interface.
+ *
+ * LP64todo -
+ * These interfaces are tied to the size of the
+ * kernel pmap - and therefore use the "local"
+ * vm_offset_t, etc... types.
*/
-extern vm_offset_t pmap_steal_memory(vm_size_t size);
- /* During VM initialization,
- * steal a chunk of memory.
- */
-extern unsigned int pmap_free_pages(void); /* During VM initialization,
- * report remaining unused
- * physical pages.
- */
-extern void pmap_startup(
- vm_offset_t *startp,
- vm_offset_t *endp);
- /* During VM initialization,
- * use remaining physical pages
- * to allocate page frames.
- */
-extern void pmap_init(void); /* Initialization,
- * after kernel runs
- * in virtual memory.
- */
-
-#ifndef MACHINE_PAGES
+extern void *pmap_steal_memory(vm_size_t size); /* Early memory allocation */
+extern void *pmap_steal_freeable_memory(vm_size_t size); /* Early memory allocation */
+
+extern uint_t pmap_free_pages(void); /* report remaining unused physical pages */
+
+extern void pmap_startup(vm_offset_t *startp, vm_offset_t *endp); /* allocate vm_page structs */
+
+extern void pmap_init(void); /* Initialization, once we have kernel virtual memory. */
+
+extern void mapping_adjust(void); /* Adjust free mapping count */
+
+extern void mapping_free_prime(void); /* Primes the mapping block release list */
+
+#ifndef MACHINE_PAGES
/*
* If machine/pmap.h defines MACHINE_PAGES, it must implement
* the above functions. The pmap module has complete control.
- * Otherwise, it must implement
+ * Otherwise, it must implement the following functions:
* pmap_free_pages
* pmap_virtual_space
* pmap_next_page
* However, for best performance pmap_free_pages should be accurate.
*/
-extern boolean_t pmap_next_page(vm_offset_t *paddr);
- /* During VM initialization,
- * return the next unused
- * physical page.
- */
-extern void pmap_virtual_space(
- vm_offset_t *virtual_start,
- vm_offset_t *virtual_end);
- /* During VM initialization,
- * report virtual space
- * available for the kernel.
- */
-#endif /* MACHINE_PAGES */
-
/*
- * Routines to manage the physical map data structure.
+ * Routines to return the next unused physical page.
*/
-extern pmap_t pmap_create(vm_size_t size); /* Create a pmap_t. */
-extern pmap_t (pmap_kernel)(void); /* Return the kernel's pmap */
-extern void pmap_reference(pmap_t pmap); /* Gain a reference. */
-extern void pmap_destroy(pmap_t pmap); /* Release a reference. */
-extern void pmap_switch(pmap_t);
-
+extern boolean_t pmap_next_page(ppnum_t *pnum);
+extern boolean_t pmap_next_page_hi(ppnum_t *pnum, boolean_t might_free);
+#ifdef __x86_64__
+extern kern_return_t pmap_next_page_large(ppnum_t *pnum);
+extern void pmap_hi_pages_done(void);
+#endif
-extern void pmap_enter( /* Enter a mapping */
- pmap_t pmap,
- vm_offset_t v,
- vm_offset_t pa,
- vm_prot_t prot,
- unsigned int flags,
- boolean_t wired);
+/*
+ * Report virtual space available for the kernel.
+ */
+extern void pmap_virtual_space(
+ vm_offset_t *virtual_start,
+ vm_offset_t *virtual_end);
+#endif /* MACHINE_PAGES */
-extern void pmap_remove_some_phys(
- pmap_t pmap,
- vm_offset_t pa);
+/*
+ * Routines to manage the physical map data structure.
+ */
+extern pmap_t pmap_create_options( /* Create a pmap_t. */
+ ledger_t ledger,
+ vm_map_size_t size,
+ unsigned int flags);
+
+extern pmap_t(pmap_kernel)(void); /* Return the kernel's pmap */
+extern void pmap_reference(pmap_t pmap); /* Gain a reference. */
+extern void pmap_destroy(pmap_t pmap); /* Release a reference. */
+extern void pmap_switch(pmap_t);
+
+#if MACH_ASSERT
+extern void pmap_set_process(pmap_t pmap,
+ int pid,
+ char *procname);
+#endif /* MACH_ASSERT */
+
+extern kern_return_t pmap_enter( /* Enter a mapping */
+ pmap_t pmap,
+ vm_map_offset_t v,
+ ppnum_t pn,
+ vm_prot_t prot,
+ vm_prot_t fault_type,
+ unsigned int flags,
+ boolean_t wired);
+
+extern kern_return_t pmap_enter_options(
+ pmap_t pmap,
+ vm_map_offset_t v,
+ ppnum_t pn,
+ vm_prot_t prot,
+ vm_prot_t fault_type,
+ unsigned int flags,
+ boolean_t wired,
+ unsigned int options,
+ void *arg);
+
+extern void pmap_remove_some_phys(
+ pmap_t pmap,
+ ppnum_t pn);
+
+extern void pmap_lock_phys_page(
+ ppnum_t pn);
+
+extern void pmap_unlock_phys_page(
+ ppnum_t pn);
/*
* Routines that operate on physical addresses.
*/
-extern void pmap_page_protect( /* Restrict access to page. */
- vm_offset_t phys,
- vm_prot_t prot);
-
-extern void (pmap_zero_page)(
- vm_offset_t phys);
-
-extern void (pmap_zero_part_page)(
- vm_offset_t p,
- vm_offset_t offset,
- vm_size_t len);
-
-extern void (pmap_copy_page)(
- vm_offset_t src,
- vm_offset_t dest);
-
-extern void (pmap_copy_part_page)(
- vm_offset_t src,
- vm_offset_t src_offset,
- vm_offset_t dst,
- vm_offset_t dst_offset,
- vm_size_t len);
-
-extern void (pmap_copy_part_lpage)(
- vm_offset_t src,
- vm_offset_t dst,
- vm_offset_t dst_offset,
- vm_size_t len);
-
-extern void (pmap_copy_part_rpage)(
- vm_offset_t src,
- vm_offset_t src_offset,
- vm_offset_t dst,
- vm_size_t len);
+extern void pmap_page_protect( /* Restrict access to page. */
+ ppnum_t phys,
+ vm_prot_t prot);
+
+extern void pmap_page_protect_options( /* Restrict access to page. */
+ ppnum_t phys,
+ vm_prot_t prot,
+ unsigned int options,
+ void *arg);
+
+extern void(pmap_zero_page)(
+ ppnum_t pn);
+
+extern void(pmap_zero_part_page)(
+ ppnum_t pn,
+ vm_offset_t offset,
+ vm_size_t len);
+
+extern void(pmap_copy_page)(
+ ppnum_t src,
+ ppnum_t dest);
+
+extern void(pmap_copy_part_page)(
+ ppnum_t src,
+ vm_offset_t src_offset,
+ ppnum_t dst,
+ vm_offset_t dst_offset,
+ vm_size_t len);
+
+extern void(pmap_copy_part_lpage)(
+ vm_offset_t src,
+ ppnum_t dst,
+ vm_offset_t dst_offset,
+ vm_size_t len);
+
+extern void(pmap_copy_part_rpage)(
+ ppnum_t src,
+ vm_offset_t src_offset,
+ vm_offset_t dst,
+ vm_size_t len);
+
+extern unsigned int(pmap_disconnect)( /* disconnect mappings and return reference and change */
+ ppnum_t phys);
+
+extern unsigned int(pmap_disconnect_options)( /* disconnect mappings and return reference and change */
+ ppnum_t phys,
+ unsigned int options,
+ void *arg);
+
+extern kern_return_t(pmap_attribute_cache_sync)( /* Flush appropriate
+ * cache based on
+ * page number sent */
+ ppnum_t pn,
+ vm_size_t size,
+ vm_machine_attribute_t attribute,
+ vm_machine_attribute_val_t* value);
+
+extern unsigned int(pmap_cache_attributes)(
+ ppnum_t pn);
+
+/*
+ * Set (override) cache attributes for the specified physical page
+ */
+extern void pmap_set_cache_attributes(
+ ppnum_t,
+ unsigned int);
+
+extern void *pmap_map_compressor_page(
+ ppnum_t);
+
+extern void pmap_unmap_compressor_page(
+ ppnum_t,
+ void*);
+
+#if defined(__arm__) || defined(__arm64__)
+/* ARM64_TODO */
+extern boolean_t pmap_batch_set_cache_attributes(
+ ppnum_t,
+ unsigned int,
+ unsigned int,
+ unsigned int,
+ boolean_t,
+ unsigned int*);
+#endif
+extern void pmap_sync_page_data_phys(ppnum_t pa);
+extern void pmap_sync_page_attributes_phys(ppnum_t pa);
/*
* debug/assertions. pmap_verify_free returns true iff
* the given physical page is mapped into no pmap.
+ * pmap_assert_free() will panic() if pn is not free.
*/
-extern boolean_t pmap_verify_free(vm_offset_t paddr);
+extern boolean_t pmap_verify_free(ppnum_t pn);
+#if MACH_ASSERT
+extern void pmap_assert_free(ppnum_t pn);
+#endif
/*
* Statistics routines
*/
-extern int (pmap_resident_count)(pmap_t pmap);
+extern int(pmap_compressed)(pmap_t pmap);
+extern int(pmap_resident_count)(pmap_t pmap);
+extern int(pmap_resident_max)(pmap_t pmap);
/*
* Sundry required (internal) routines
*/
-extern void pmap_collect(pmap_t pmap);/* Perform garbage
- * collection, if any */
-
-
-extern vm_offset_t (pmap_phys_address)( /* Transform address returned
- * by device driver mapping
- * function to physical address
- * known to this module. */
- int frame);
-
-extern int (pmap_phys_to_frame)( /* Inverse of pmap_phys_addess,
- * for use by device driver
- * mapping function in
- * machine-independent
- * pseudo-devices. */
- vm_offset_t phys);
-
+#ifdef CURRENTLY_UNUSED_AND_UNTESTED
+extern void pmap_collect(pmap_t pmap);/* Perform garbage
+ * collection, if any */
+#endif
/*
* Optional routines
*/
-extern void (pmap_copy)( /* Copy range of mappings,
- * if desired. */
- pmap_t dest,
- pmap_t source,
- vm_offset_t dest_va,
- vm_size_t size,
- vm_offset_t source_va);
-
-extern kern_return_t (pmap_attribute)( /* Get/Set special memory
- * attributes */
- pmap_t pmap,
- vm_offset_t va,
- vm_size_t size,
- vm_machine_attribute_t attribute,
- vm_machine_attribute_val_t* value);
-
-extern kern_return_t (pmap_attribute_cache_sync)( /* Flush appropriate
- * cache based on
- * phys addr sent */
- vm_offset_t addr,
- vm_size_t size,
- vm_machine_attribute_t attribute,
- vm_machine_attribute_val_t* value);
+extern void(pmap_copy)( /* Copy range of mappings,
+ * if desired. */
+ pmap_t dest,
+ pmap_t source,
+ vm_map_offset_t dest_va,
+ vm_map_size_t size,
+ vm_map_offset_t source_va);
+
+extern kern_return_t(pmap_attribute)( /* Get/Set special memory
+ * attributes */
+ pmap_t pmap,
+ vm_map_offset_t va,
+ vm_map_size_t size,
+ vm_machine_attribute_t attribute,
+ vm_machine_attribute_val_t* value);
/*
* Routines defined as macros.
*/
#ifndef PMAP_ACTIVATE_USER
-#define PMAP_ACTIVATE_USER(act, cpu) { \
- pmap_t pmap; \
- \
- pmap = (act)->map->pmap; \
- if (pmap != pmap_kernel()) \
- PMAP_ACTIVATE(pmap, (act), (cpu)); \
+#ifndef PMAP_ACTIVATE
+#define PMAP_ACTIVATE_USER(thr, cpu)
+#else /* PMAP_ACTIVATE */
+#define PMAP_ACTIVATE_USER(thr, cpu) { \
+ pmap_t pmap; \
+ \
+ pmap = (thr)->map->pmap; \
+ if (pmap != pmap_kernel()) \
+ PMAP_ACTIVATE(pmap, (thr), (cpu)); \
}
+#endif /* PMAP_ACTIVATE */
#endif /* PMAP_ACTIVATE_USER */
#ifndef PMAP_DEACTIVATE_USER
-#define PMAP_DEACTIVATE_USER(act, cpu) { \
- pmap_t pmap; \
- \
- pmap = (act)->map->pmap; \
- if ((pmap) != pmap_kernel()) \
- PMAP_DEACTIVATE(pmap, (act), (cpu)); \
+#ifndef PMAP_DEACTIVATE
+#define PMAP_DEACTIVATE_USER(thr, cpu)
+#else /* PMAP_DEACTIVATE */
+#define PMAP_DEACTIVATE_USER(thr, cpu) { \
+ pmap_t pmap; \
+ \
+ pmap = (thr)->map->pmap; \
+ if ((pmap) != pmap_kernel()) \
+ PMAP_DEACTIVATE(pmap, (thr), (cpu)); \
}
+#endif /* PMAP_DEACTIVATE */
#endif /* PMAP_DEACTIVATE_USER */
-#ifndef PMAP_ACTIVATE_KERNEL
-#define PMAP_ACTIVATE_KERNEL(cpu) \
- PMAP_ACTIVATE(pmap_kernel(), THR_ACT_NULL, cpu)
-#endif /* PMAP_ACTIVATE_KERNEL */
-
-#ifndef PMAP_DEACTIVATE_KERNEL
-#define PMAP_DEACTIVATE_KERNEL(cpu) \
- PMAP_DEACTIVATE(pmap_kernel(), THR_ACT_NULL, cpu)
-#endif /* PMAP_DEACTIVATE_KERNEL */
-
-#ifndef PMAP_ENTER
+#ifndef PMAP_ACTIVATE_KERNEL
+#ifndef PMAP_ACTIVATE
+#define PMAP_ACTIVATE_KERNEL(cpu)
+#else /* PMAP_ACTIVATE */
+#define PMAP_ACTIVATE_KERNEL(cpu) \
+ PMAP_ACTIVATE(pmap_kernel(), THREAD_NULL, cpu)
+#endif /* PMAP_ACTIVATE */
+#endif /* PMAP_ACTIVATE_KERNEL */
+
+#ifndef PMAP_DEACTIVATE_KERNEL
+#ifndef PMAP_DEACTIVATE
+#define PMAP_DEACTIVATE_KERNEL(cpu)
+#else /* PMAP_DEACTIVATE */
+#define PMAP_DEACTIVATE_KERNEL(cpu) \
+ PMAP_DEACTIVATE(pmap_kernel(), THREAD_NULL, cpu)
+#endif /* PMAP_DEACTIVATE */
+#endif /* PMAP_DEACTIVATE_KERNEL */
+
+#ifndef PMAP_ENTER
/*
* Macro to be used in place of pmap_enter()
*/
-#define PMAP_ENTER(pmap, virtual_address, page, protection, flags, wired) \
- MACRO_BEGIN \
- pmap_enter( \
- (pmap), \
- (virtual_address), \
- (page)->phys_addr, \
- (protection) & ~(page)->page_lock, \
- flags, \
- (wired) \
- ); \
- MACRO_END
-#endif /* !PMAP_ENTER */
+#define PMAP_ENTER(pmap, virtual_address, page, protection, fault_type, \
+ flags, wired, result) \
+ MACRO_BEGIN \
+ pmap_t __pmap = (pmap); \
+ vm_page_t __page = (page); \
+ int __options = 0; \
+ vm_object_t __obj; \
+ \
+ PMAP_ENTER_CHECK(__pmap, __page) \
+ __obj = VM_PAGE_OBJECT(__page); \
+ if (__obj->internal) { \
+ __options |= PMAP_OPTIONS_INTERNAL; \
+ } \
+ if (__page->vmp_reusable || __obj->all_reusable) { \
+ __options |= PMAP_OPTIONS_REUSABLE; \
+ } \
+ result = pmap_enter_options(__pmap, \
+ (virtual_address), \
+ VM_PAGE_GET_PHYS_PAGE(__page), \
+ (protection), \
+ (fault_type), \
+ (flags), \
+ (wired), \
+ __options, \
+ NULL); \
+ MACRO_END
+#endif /* !PMAP_ENTER */
+
+#ifndef PMAP_ENTER_OPTIONS
+#define PMAP_ENTER_OPTIONS(pmap, virtual_address, page, protection, \
+ fault_type, flags, wired, options, result) \
+ MACRO_BEGIN \
+ pmap_t __pmap = (pmap); \
+ vm_page_t __page = (page); \
+ int __extra_options = 0; \
+ vm_object_t __obj; \
+ \
+ PMAP_ENTER_CHECK(__pmap, __page) \
+ __obj = VM_PAGE_OBJECT(__page); \
+ if (__obj->internal) { \
+ __extra_options |= PMAP_OPTIONS_INTERNAL; \
+ } \
+ if (__page->vmp_reusable || __obj->all_reusable) { \
+ __extra_options |= PMAP_OPTIONS_REUSABLE; \
+ } \
+ result = pmap_enter_options(__pmap, \
+ (virtual_address), \
+ VM_PAGE_GET_PHYS_PAGE(__page), \
+ (protection), \
+ (fault_type), \
+ (flags), \
+ (wired), \
+ (options) | __extra_options, \
+ NULL); \
+ MACRO_END
+#endif /* !PMAP_ENTER_OPTIONS */
+
+#ifndef PMAP_SET_CACHE_ATTR
+#define PMAP_SET_CACHE_ATTR(mem, object, cache_attr, batch_pmap_op) \
+ MACRO_BEGIN \
+ if (!batch_pmap_op) { \
+ pmap_set_cache_attributes(VM_PAGE_GET_PHYS_PAGE(mem), cache_attr); \
+ object->set_cache_attr = TRUE; \
+ } \
+ MACRO_END
+#endif /* PMAP_SET_CACHE_ATTR */
+
+#ifndef PMAP_BATCH_SET_CACHE_ATTR
+#if defined(__arm__) || defined(__arm64__)
+#define PMAP_BATCH_SET_CACHE_ATTR(object, user_page_list, \
+ cache_attr, num_pages, batch_pmap_op) \
+ MACRO_BEGIN \
+ if ((batch_pmap_op)) { \
+ unsigned int __page_idx=0; \
+ unsigned int res=0; \
+ boolean_t batch=TRUE; \
+ while (__page_idx < (num_pages)) { \
+ if (!pmap_batch_set_cache_attributes( \
+ user_page_list[__page_idx].phys_addr, \
+ (cache_attr), \
+ (num_pages), \
+ (__page_idx), \
+ FALSE, \
+ (&res))) { \
+ batch = FALSE; \
+ break; \
+ } \
+ __page_idx++; \
+ } \
+ __page_idx=0; \
+ res=0; \
+ while (__page_idx < (num_pages)) { \
+ if (batch) \
+ (void)pmap_batch_set_cache_attributes( \
+ user_page_list[__page_idx].phys_addr, \
+ (cache_attr), \
+ (num_pages), \
+ (__page_idx), \
+ TRUE, \
+ (&res)); \
+ else \
+ pmap_set_cache_attributes( \
+ user_page_list[__page_idx].phys_addr, \
+ (cache_attr)); \
+ __page_idx++; \
+ } \
+ (object)->set_cache_attr = TRUE; \
+ } \
+ MACRO_END
+#else
+#define PMAP_BATCH_SET_CACHE_ATTR(object, user_page_list, \
+ cache_attr, num_pages, batch_pmap_op) \
+ MACRO_BEGIN \
+ if ((batch_pmap_op)) { \
+ unsigned int __page_idx=0; \
+ while (__page_idx < (num_pages)) { \
+ pmap_set_cache_attributes( \
+ user_page_list[__page_idx].phys_addr, \
+ (cache_attr)); \
+ __page_idx++; \
+ } \
+ (object)->set_cache_attr = TRUE; \
+ } \
+ MACRO_END
+#endif
+#endif /* PMAP_BATCH_SET_CACHE_ATTR */
+
+#define PMAP_ENTER_CHECK(pmap, page) \
+{ \
+ if ((page)->vmp_error) { \
+ panic("VM page %p should not have an error\n", \
+ (page)); \
+ } \
+}
/*
* Routines to manage reference/modify bits based on
* physical addresses, simulating them if not provided
* by the hardware.
*/
- /* Clear reference bit */
-extern void pmap_clear_reference(vm_offset_t paddr);
- /* Return reference bit */
-extern boolean_t (pmap_is_referenced)(vm_offset_t paddr);
- /* Set modify bit */
-extern void pmap_set_modify(vm_offset_t paddr);
- /* Clear modify bit */
-extern void pmap_clear_modify(vm_offset_t paddr);
- /* Return modify bit */
-extern boolean_t pmap_is_modified(vm_offset_t paddr);
+struct pfc {
+ long pfc_cpus;
+ long pfc_invalid_global;
+};
+
+typedef struct pfc pmap_flush_context;
+
+/* Clear reference bit */
+extern void pmap_clear_reference(ppnum_t pn);
+/* Return reference bit */
+extern boolean_t(pmap_is_referenced)(ppnum_t pn);
+/* Set modify bit */
+extern void pmap_set_modify(ppnum_t pn);
+/* Clear modify bit */
+extern void pmap_clear_modify(ppnum_t pn);
+/* Return modify bit */
+extern boolean_t pmap_is_modified(ppnum_t pn);
+/* Return modified and referenced bits */
+extern unsigned int pmap_get_refmod(ppnum_t pn);
+/* Clear modified and referenced bits */
+extern void pmap_clear_refmod(ppnum_t pn, unsigned int mask);
+#define VM_MEM_MODIFIED 0x01 /* Modified bit */
+#define VM_MEM_REFERENCED 0x02 /* Referenced bit */
+extern void pmap_clear_refmod_options(ppnum_t pn, unsigned int mask, unsigned int options, void *);
+
+
+extern void pmap_flush_context_init(pmap_flush_context *);
+extern void pmap_flush(pmap_flush_context *);
/*
* Routines that operate on ranges of virtual addresses.
*/
-extern void pmap_protect( /* Change protections. */
- pmap_t map,
- vm_offset_t s,
- vm_offset_t e,
- vm_prot_t prot);
-
-extern void (pmap_pageable)(
- pmap_t pmap,
- vm_offset_t start,
- vm_offset_t end,
- boolean_t pageable);
-
-#endif /* MACH_KERNEL_PRIVATE */
+extern void pmap_protect( /* Change protections. */
+ pmap_t map,
+ vm_map_offset_t s,
+ vm_map_offset_t e,
+ vm_prot_t prot);
+
+extern void pmap_protect_options( /* Change protections. */
+ pmap_t map,
+ vm_map_offset_t s,
+ vm_map_offset_t e,
+ vm_prot_t prot,
+ unsigned int options,
+ void *arg);
+
+extern void(pmap_pageable)(
+ pmap_t pmap,
+ vm_map_offset_t start,
+ vm_map_offset_t end,
+ boolean_t pageable);
+
+
+extern uint64_t pmap_nesting_size_min;
+extern uint64_t pmap_nesting_size_max;
+
+extern kern_return_t pmap_nest(pmap_t,
+ pmap_t,
+ addr64_t,
+ addr64_t,
+ uint64_t);
+extern kern_return_t pmap_unnest(pmap_t,
+ addr64_t,
+ uint64_t);
+
+#define PMAP_UNNEST_CLEAN 1
+
+extern kern_return_t pmap_unnest_options(pmap_t,
+ addr64_t,
+ uint64_t,
+ unsigned int);
+extern boolean_t pmap_adjust_unnest_parameters(pmap_t, vm_map_offset_t *, vm_map_offset_t *);
+extern void pmap_advise_pagezero_range(pmap_t, uint64_t);
+#endif /* MACH_KERNEL_PRIVATE */
+
+extern boolean_t pmap_is_noencrypt(ppnum_t);
+extern void pmap_set_noencrypt(ppnum_t pn);
+extern void pmap_clear_noencrypt(ppnum_t pn);
/*
* JMM - This portion is exported to other kernel components right now,
* is provided in a cleaner manner.
*/
-#define PMAP_NULL ((pmap_t) 0)
-
-extern pmap_t kernel_pmap; /* The kernel's map */
-#define pmap_kernel() (kernel_pmap)
-
-/* machine independent WIMG bits */
-
-#define VM_MEM_GUARDED 0x1
-#define VM_MEM_COHERENT 0x2
-#define VM_MEM_NOT_CACHEABLE 0x4
-#define VM_MEM_WRITE_THROUGH 0x8
+extern pmap_t kernel_pmap; /* The kernel's map */
+#define pmap_kernel() (kernel_pmap)
-#define VM_WIMG_MASK 0xFF
-#define VM_WIMG_USE_DEFAULT 0x80000000
+#define VM_MEM_SUPERPAGE 0x100 /* map a superpage instead of a base page */
+#define VM_MEM_STACK 0x200
-extern void pmap_modify_pages( /* Set modify bit for pages */
- pmap_t map,
- vm_offset_t s,
- vm_offset_t e);
+/* N.B. These use the same numerical space as the PMAP_EXPAND_OPTIONS
+ * definitions in i386/pmap_internal.h
+ */
+#define PMAP_CREATE_64BIT 0x1
+#if __x86_64__
+#define PMAP_CREATE_EPT 0x2
+#define PMAP_CREATE_KNOWN_FLAGS (PMAP_CREATE_64BIT | PMAP_CREATE_EPT)
+#endif
+
+#define PMAP_OPTIONS_NOWAIT 0x1 /* don't block, return
+ * KERN_RESOURCE_SHORTAGE
+ * instead */
+#define PMAP_OPTIONS_NOENTER 0x2 /* expand pmap if needed
+ * but don't enter mapping
+ */
+#define PMAP_OPTIONS_COMPRESSOR 0x4 /* credit the compressor for
+ * this operation */
+#define PMAP_OPTIONS_INTERNAL 0x8 /* page from internal object */
+#define PMAP_OPTIONS_REUSABLE 0x10 /* page is "reusable" */
+#define PMAP_OPTIONS_NOFLUSH 0x20 /* delay flushing of pmap */
+#define PMAP_OPTIONS_NOREFMOD 0x40 /* don't need ref/mod on disconnect */
+#define PMAP_OPTIONS_ALT_ACCT 0x80 /* use alternate accounting scheme for page */
+#define PMAP_OPTIONS_REMOVE 0x100 /* removing a mapping */
+#define PMAP_OPTIONS_SET_REUSABLE 0x200 /* page is now "reusable" */
+#define PMAP_OPTIONS_CLEAR_REUSABLE 0x400 /* page no longer "reusable" */
+#define PMAP_OPTIONS_COMPRESSOR_IFF_MODIFIED 0x800 /* credit the compressor
+ * iff page was modified */
+#define PMAP_OPTIONS_PROTECT_IMMEDIATE 0x1000 /* allow protections to be
+ * be upgraded */
+#define PMAP_OPTIONS_CLEAR_WRITE 0x2000
+
+
+#if !defined(__LP64__)
+extern vm_offset_t pmap_extract(pmap_t pmap,
+ vm_map_offset_t va);
+#endif
+extern void pmap_change_wiring( /* Specify pageability */
+ pmap_t pmap,
+ vm_map_offset_t va,
+ boolean_t wired);
+
+/* LP64todo - switch to vm_map_offset_t when it grows */
+extern void pmap_remove( /* Remove mappings. */
+ pmap_t map,
+ vm_map_offset_t s,
+ vm_map_offset_t e);
+
+extern void pmap_remove_options( /* Remove mappings. */
+ pmap_t map,
+ vm_map_offset_t s,
+ vm_map_offset_t e,
+ int options);
+
+extern void fillPage(ppnum_t pa, unsigned int fill);
+
+#if defined(__LP64__)
+extern void pmap_pre_expand(pmap_t pmap, vm_map_offset_t vaddr);
+extern kern_return_t pmap_pre_expand_large(pmap_t pmap, vm_map_offset_t vaddr);
+extern vm_size_t pmap_query_pagesize(pmap_t map, vm_map_offset_t vaddr);
+#endif
+
+mach_vm_size_t pmap_query_resident(pmap_t pmap,
+ vm_map_offset_t s,
+ vm_map_offset_t e,
+ mach_vm_size_t *compressed_bytes_p);
+
+/* Inform the pmap layer that there is a JIT entry in this map. */
+extern void pmap_set_jit_entitled(pmap_t pmap);
-extern vm_offset_t pmap_extract(pmap_t pmap,
- vm_offset_t va);
+/*
+ * Tell the pmap layer what range within the nested region the VM intends to
+ * use.
+ */
+extern void pmap_trim(pmap_t grand, pmap_t subord, addr64_t vstart, addr64_t nstart, uint64_t size);
-extern void pmap_change_wiring( /* Specify pageability */
- pmap_t pmap,
- vm_offset_t va,
- boolean_t wired);
+/*
+ * Dump page table contents into the specified buffer. Returns the number of
+ * bytes copied, 0 if insufficient space, (size_t)-1 if unsupported.
+ * This is expected to only be called from kernel debugger context,
+ * so synchronization is not required.
+ */
-extern void pmap_remove( /* Remove mappings. */
- pmap_t map,
- vm_offset_t s,
- vm_offset_t e);
+extern size_t pmap_dump_page_tables(pmap_t pmap, void *bufp, void *buf_end);
-#endif /* __APPLE_API_PRIVATE */
+/*
+ * Indicates if any special policy is applied to this protection by the pmap
+ * layer.
+ */
+bool pmap_has_prot_policy(vm_prot_t prot);
-#endif /* _VM_PMAP_H_ */
+/*
+ * Causes the pmap to return any available pages that it can return cheaply to
+ * the VM.
+ */
+uint64_t pmap_release_pages_fast(void);
+
+#define PMAP_QUERY_PAGE_PRESENT 0x01
+#define PMAP_QUERY_PAGE_REUSABLE 0x02
+#define PMAP_QUERY_PAGE_INTERNAL 0x04
+#define PMAP_QUERY_PAGE_ALTACCT 0x08
+#define PMAP_QUERY_PAGE_COMPRESSED 0x10
+#define PMAP_QUERY_PAGE_COMPRESSED_ALTACCT 0x20
+extern kern_return_t pmap_query_page_info(
+ pmap_t pmap,
+ vm_map_offset_t va,
+ int *disp);
+
+#if CONFIG_PGTRACE
+int pmap_pgtrace_add_page(pmap_t pmap, vm_map_offset_t start, vm_map_offset_t end);
+int pmap_pgtrace_delete_page(pmap_t pmap, vm_map_offset_t start, vm_map_offset_t end);
+kern_return_t pmap_pgtrace_fault(pmap_t pmap, vm_map_offset_t va, arm_saved_state_t *ss);
+#endif
+
+
+#ifdef PLATFORM_BridgeOS
+struct pmap_legacy_trust_cache {
+ struct pmap_legacy_trust_cache *next;
+ uuid_t uuid;
+ uint32_t num_hashes;
+ uint8_t hashes[][CS_CDHASH_LEN];
+};
+#else
+struct pmap_legacy_trust_cache;
+#endif
+
+extern kern_return_t pmap_load_legacy_trust_cache(struct pmap_legacy_trust_cache *trust_cache,
+ const vm_size_t trust_cache_len);
+
+struct pmap_image4_trust_cache {
+ // Filled by pmap layer.
+ struct pmap_image4_trust_cache const *next; // linked list linkage
+ struct trust_cache_module1 const *module; // pointer into module (within data below)
+
+ // Filled by caller.
+ // data is either an image4,
+ // or just the trust cache payload itself if the image4 manifest is external.
+ size_t data_len;
+ uint8_t const data[];
+};
+
+typedef enum {
+ PMAP_TC_SUCCESS = 0,
+ PMAP_TC_UNKNOWN_FORMAT = -1,
+ PMAP_TC_TOO_SMALL_FOR_HEADER = -2,
+ PMAP_TC_TOO_SMALL_FOR_ENTRIES = -3,
+ PMAP_TC_UNKNOWN_VERSION = -4,
+ PMAP_TC_ALREADY_LOADED = -5,
+ PMAP_TC_TOO_BIG = -6,
+ PMAP_TC_RESOURCE_SHORTAGE = -7,
+ PMAP_TC_MANIFEST_TOO_BIG = -8,
+} pmap_tc_ret_t;
+
+extern pmap_tc_ret_t pmap_load_image4_trust_cache(
+ struct pmap_image4_trust_cache *trust_cache, vm_size_t trust_cache_len,
+ uint8_t const *img4_manifest,
+ vm_size_t img4_manifest_buffer_len,
+ vm_size_t img4_manifest_actual_len,
+ bool dry_run);
+
+extern bool pmap_is_trust_cache_loaded(const uuid_t uuid);
+extern uint32_t pmap_lookup_in_static_trust_cache(const uint8_t cdhash[CS_CDHASH_LEN]);
+extern bool pmap_lookup_in_loaded_trust_caches(const uint8_t cdhash[CS_CDHASH_LEN]);
+
+extern bool pmap_in_ppl(void);
+
+extern void *pmap_claim_reserved_ppl_page(void);
+extern void pmap_free_reserved_ppl_page(void *kva);
+
+extern void pmap_ledger_alloc_init(size_t);
+extern ledger_t pmap_ledger_alloc(void);
+extern void pmap_ledger_free(ledger_t);
+
+#endif /* KERNEL_PRIVATE */
+
+#endif /* _VM_PMAP_H_ */
projects / apple / xnu.git / blobdiff