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vmstate, memory: decouple vmstate from memory API

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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
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17
savevm.c
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@ -83,6 +83,7 @@
#include "qemu-queue.h"
#include "qemu-timer.h"
#include "cpus.h"
#include "memory.h"
#define SELF_ANNOUNCE_ROUNDS 5
@ -2280,3 +2281,19 @@ void do_info_snapshots(Monitor *mon)
g_free(available_snapshots);
}
void vmstate_register_ram(MemoryRegion *mr, DeviceState *dev)
{
qemu_ram_set_idstr(memory_region_get_ram_addr(mr),
memory_region_name(mr), dev);
}
void vmstate_unregister_ram(MemoryRegion *mr, DeviceState *dev)
{
/* Nothing do to while the implementation is in RAMBlock */
}
void vmstate_register_ram_global(MemoryRegion *mr)
{
vmstate_register_ram(mr, NULL);
}