vmstate, memory: decouple vmstate from memory API

Currently creating a memory region automatically registers it for
live migration.  This differs from other state (which is enumerated
in a VMStateDescription structure) and ties the live migration code
into the memory core.

Decouple the two by introducing a separate API, vmstate_register_ram(),
for registering a RAM block for migration.  Currently the same
implementation is reused, but later it can be moved into a separate list,
and registrations can be moved to VMStateDescription blocks.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-12-20 15:59:12 +02:00
parent 8991c79b57
commit c5705a7728
71 changed files with 286 additions and 154 deletions

View file

@ -146,10 +146,12 @@ static void mips_jazz_init(MemoryRegion *address_space,
qemu_register_reset(main_cpu_reset, env);
/* allocate RAM */
memory_region_init_ram(ram, NULL, "mips_jazz.ram", ram_size);
memory_region_init_ram(ram, "mips_jazz.ram", ram_size);
vmstate_register_ram_global(ram);
memory_region_add_subregion(address_space, 0, ram);
memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
memory_region_init_ram(bios, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
vmstate_register_ram_global(bios);
memory_region_set_readonly(bios, true);
memory_region_init_alias(bios2, "mips_jazz.bios", bios,
0, MAGNUM_BIOS_SIZE);
@ -208,7 +210,8 @@ static void mips_jazz_init(MemoryRegion *address_space,
{
/* Simple ROM, so user doesn't have to provide one */
MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000);
memory_region_init_ram(rom_mr, "g364fb.rom", 0x80000);
vmstate_register_ram_global(rom_mr);
memory_region_set_readonly(rom_mr, true);
uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
memory_region_add_subregion(address_space, 0x60000000, rom_mr);