exec-obsolete.h

   1 /*
   2  * Declarations for obsolete exec.c functions
   3  *
   4  * Copyright 2011 Red Hat, Inc. and/or its affiliates
   5  *
   6  * Authors:
   7  *  Avi Kivity <avi@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or
  10  * later.  See the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 /*
  15  * This header is for use by exec.c and memory.c ONLY.  Do not include it.
  16  * The functions declared here will be removed soon.
  17  */
  18
  19 #ifndef EXEC_OBSOLETE_H
  20 #define EXEC_OBSOLETE_H
  21
  22 #ifndef WANT_EXEC_OBSOLETE
  23 #error Do not include exec-obsolete.h
  24 #endif
  25
  26 #ifndef CONFIG_USER_ONLY
  27
  28 ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
  29                                    MemoryRegion *mr);
  30 ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr);
  31 void qemu_ram_free(ram_addr_t addr);
  32 void qemu_ram_free_from_ptr(ram_addr_t addr);
  33
  34 struct MemoryRegion;
  35 int cpu_register_io_memory(MemoryRegion *mr);
  36 void cpu_unregister_io_memory(int table_address);
  37
  38 struct MemoryRegionSection;
  39 void cpu_register_physical_memory_log(struct MemoryRegionSection *section,
  40                                       bool readonly);
  41
  42 void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
  43 void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
  44
  45 int cpu_physical_memory_set_dirty_tracking(int enable);
  46
  47 #define VGA_DIRTY_FLAG       0x01
  48 #define CODE_DIRTY_FLAG      0x02
  49 #define MIGRATION_DIRTY_FLAG 0x08
  50
  51 /* read dirty bit (return 0 or 1) */
  52 static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
  53 {
  54     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
  55 }
  56
  57 static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr)
  58 {
  59     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
  60 }
  61
  62 static inline int cpu_physical_memory_get_dirty(ram_addr_t start,
  63                                                 ram_addr_t length,
  64                                                 int dirty_flags)
  65 {
  66     int ret = 0;
  67     uint8_t *p;
  68     ram_addr_t addr, end;
  69
  70     end = TARGET_PAGE_ALIGN(start + length);
  71     start &= TARGET_PAGE_MASK;
  72     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
  73     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
  74         ret |= *p++ & dirty_flags;
  75     }
  76     return ret;
  77 }
  78
  79 static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
  80 {
  81     ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
  82 }
  83
  84 static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr,
  85                                                       int dirty_flags)
  86 {
  87     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
  88 }
  89
  90 static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
  91                                                        ram_addr_t length,
  92                                                        int dirty_flags)
  93 {
  94     uint8_t *p;
  95     ram_addr_t addr, end;
  96
  97     end = TARGET_PAGE_ALIGN(start + length);
  98     start &= TARGET_PAGE_MASK;
  99     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
 100     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
 101         *p++ |= dirty_flags;
 102     }
 103 }
 104
 105 static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
 106                                                         ram_addr_t length,
 107                                                         int dirty_flags)
 108 {
 109     int mask;
 110     uint8_t *p;
 111     ram_addr_t addr, end;
 112
 113     end = TARGET_PAGE_ALIGN(start + length);
 114     start &= TARGET_PAGE_MASK;
 115     mask = ~dirty_flags;
 116     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
 117     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
 118         *p++ &= mask;
 119     }
 120 }
 121
 122 void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
 123                                      int dirty_flags);
 124
 125 extern const IORangeOps memory_region_iorange_ops;
 126
 127 #endif
 128
 129 #endif