AddressSpace address_space_memory;
DMAContext dma_context_memory;
-MemoryRegion io_mem_ram, io_mem_rom, io_mem_unassigned, io_mem_notdirty;
-static MemoryRegion io_mem_subpage_ram;
+MemoryRegion io_mem_rom, io_mem_notdirty;
+static MemoryRegion io_mem_unassigned, io_mem_subpage_ram;
#endif
bool memory_region_is_unassigned(MemoryRegion *mr)
{
- return mr != &io_mem_ram && mr != &io_mem_rom
- && mr != &io_mem_notdirty && !mr->rom_device
+ return mr != &io_mem_rom && mr != &io_mem_notdirty && !mr->rom_device
&& mr != &io_mem_watch;
}
#endif
return ram_addr;
}
-static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
- unsigned size)
+static bool unassigned_mem_accepts(void *opaque, hwaddr addr,
+ unsigned size, bool is_write)
{
-#ifdef DEBUG_UNASSIGNED
- printf("Unassigned mem read " TARGET_FMT_plx "\n", addr);
-#endif
-#if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
- cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, size);
-#endif
- return 0;
-}
-
-static void unassigned_mem_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
-#ifdef DEBUG_UNASSIGNED
- printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val);
-#endif
-#if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
- cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size);
-#endif
-}
-
-static const MemoryRegionOps unassigned_mem_ops = {
- .read = unassigned_mem_read,
- .write = unassigned_mem_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static uint64_t error_mem_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- abort();
-}
-
-static void error_mem_write(void *opaque, hwaddr addr,
- uint64_t value, unsigned size)
-{
- abort();
+ return false;
}
-static const MemoryRegionOps error_mem_ops = {
- .read = error_mem_read,
- .write = error_mem_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static const MemoryRegionOps rom_mem_ops = {
- .read = error_mem_read,
- .write = unassigned_mem_write,
+const MemoryRegionOps unassigned_mem_ops = {
+ .valid.accepts = unassigned_mem_accepts,
.endianness = DEVICE_NATIVE_ENDIAN,
};
int dirty_flags;
dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr);
if (!(dirty_flags & CODE_DIRTY_FLAG)) {
-#if !defined(CONFIG_USER_ONLY)
tb_invalidate_phys_page_fast(ram_addr, size);
dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr);
-#endif
}
switch (size) {
case 1:
tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr);
}
+static bool notdirty_mem_accepts(void *opaque, hwaddr addr,
+ unsigned size, bool is_write)
+{
+ return is_write;
+}
+
static const MemoryRegionOps notdirty_mem_ops = {
- .read = error_mem_read,
.write = notdirty_mem_write,
+ .valid.accepts = notdirty_mem_accepts,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void io_mem_init(void)
{
- memory_region_init_io(&io_mem_ram, &error_mem_ops, NULL, "ram", UINT64_MAX);
- memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX);
+ memory_region_init_io(&io_mem_rom, &unassigned_mem_ops, NULL, "rom", UINT64_MAX);
memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL,
"unassigned", UINT64_MAX);
memory_region_init_io(&io_mem_notdirty, ¬dirty_mem_ops, NULL,