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| author | Avi Kivity <avi@redhat.com> | 2011-12-20 15:59:12 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-01-04 13:34:48 +0200 |
| commit | c5705a7728b4a6bc9e4f2d35911adbaf28042b25 (patch) | |
| tree | e96a1e0c9fbd0fa3624b5454038659775c81fba2 /hw/ivshmem.c | |
| parent | 8991c79b57b75fcdeb290df89b9b0adaccb0303c (diff) | |
| download | qemu-c5705a7728b4a6bc9e4f2d35911adbaf28042b25.tar.gz qemu-c5705a7728b4a6bc9e4f2d35911adbaf28042b25.tar.bz2 qemu-c5705a7728b4a6bc9e4f2d35911adbaf28042b25.zip | |
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>
Diffstat (limited to 'hw/ivshmem.c')
| -rw-r--r-- | hw/ivshmem.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/hw/ivshmem.c b/hw/ivshmem.c index 7b4dbf66a9..1aa9e3bfa1 100644 --- a/hw/ivshmem.c +++ b/hw/ivshmem.c @@ -335,8 +335,9 @@ static void create_shared_memory_BAR(IVShmemState *s, int fd) { ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); - memory_region_init_ram_ptr(&s->ivshmem, &s->dev.qdev, "ivshmem.bar2", + memory_region_init_ram_ptr(&s->ivshmem, "ivshmem.bar2", s->ivshmem_size, ptr); + vmstate_register_ram(&s->ivshmem, &s->dev.qdev); memory_region_add_subregion(&s->bar, 0, &s->ivshmem); /* region for shared memory */ @@ -451,8 +452,9 @@ static void ivshmem_read(void *opaque, const uint8_t * buf, int flags) /* mmap the region and map into the BAR2 */ map_ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED, incoming_fd, 0); - memory_region_init_ram_ptr(&s->ivshmem, &s->dev.qdev, + memory_region_init_ram_ptr(&s->ivshmem, "ivshmem.bar2", s->ivshmem_size, map_ptr); + vmstate_register_ram(&s->ivshmem, &s->dev.qdev); IVSHMEM_DPRINTF("guest h/w addr = %" PRIu64 ", size = %" PRIu64 "\n", s->ivshmem_offset, s->ivshmem_size); @@ -753,6 +755,7 @@ static int pci_ivshmem_uninit(PCIDevice *dev) memory_region_destroy(&s->ivshmem_mmio); memory_region_del_subregion(&s->bar, &s->ivshmem); + vmstate_unregister_ram(&s->ivshmem, &s->dev.qdev); memory_region_destroy(&s->ivshmem); memory_region_destroy(&s->bar); unregister_savevm(&dev->qdev, "ivshmem", s); |