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 struct MemoryRegionSection;
  36 void cpu_register_physical_memory_log(struct MemoryRegionSection *section,
  37                                       bool readonly);
  38
  39 void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
  40 void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
  41
  42 int cpu_physical_memory_set_dirty_tracking(int enable);
  43
  44 #define VGA_DIRTY_FLAG       0x01
  45 #define CODE_DIRTY_FLAG      0x02
  46 #define MIGRATION_DIRTY_FLAG 0x08
  47
  48 /* read dirty bit (return 0 or 1) */
  49 static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
  50 {
  51     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
  52 }
  53
  54 static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr)
  55 {
  56     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
  57 }
  58
  59 static inline int cpu_physical_memory_get_dirty(ram_addr_t start,
  60                                                 ram_addr_t length,
  61                                                 int dirty_flags)
  62 {
  63     int ret = 0;
  64     uint8_t *p;
  65     ram_addr_t addr, end;
  66
  67     end = TARGET_PAGE_ALIGN(start + length);
  68     start &= TARGET_PAGE_MASK;
  69     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
  70     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
  71         ret |= *p++ & dirty_flags;
  72     }
  73     return ret;
  74 }
  75
  76 static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
  77 {
  78     ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
  79 }
  80
  81 static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr,
  82                                                       int dirty_flags)
  83 {
  84     return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
  85 }
  86
  87 static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
  88                                                        ram_addr_t length,
  89                                                        int dirty_flags)
  90 {
  91     uint8_t *p;
  92     ram_addr_t addr, end;
  93
  94     end = TARGET_PAGE_ALIGN(start + length);
  95     start &= TARGET_PAGE_MASK;
  96     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
  97     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
  98         *p++ |= dirty_flags;
  99     }
 100 }
 101
 102 static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
 103                                                         ram_addr_t length,
 104                                                         int dirty_flags)
 105 {
 106     int mask;
 107     uint8_t *p;
 108     ram_addr_t addr, end;
 109
 110     end = TARGET_PAGE_ALIGN(start + length);
 111     start &= TARGET_PAGE_MASK;
 112     mask = ~dirty_flags;
 113     p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
 114     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
 115         *p++ &= mask;
 116     }
 117 }
 118
 119 void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
 120                                      int dirty_flags);
 121
 122 extern const IORangeOps memory_region_iorange_ops;
 123
 124 #endif
 125
 126 #endif