On 07/25/2013 04:18 PM, Lei Li wrote:
Signed-off-by: Lei Li <li...@linux.vnet.ibm.com> --- arch_init.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-)diff --git a/arch_init.c b/arch_init.c index a418071..7eeb52f 100644 --- a/arch_init.c +++ b/arch_init.c @@ -757,6 +757,38 @@ static int ram_page_save(QEMUFile *f) return bytes_sent; } +static int ram_save_local(QEMUFile *f, void *opaque) +{ + uint64_t bytes_sent = 0; + uint64_t total_ram_bytes = ram_bytes_total(); + + qemu_mutex_lock_ramlist(); + + while (total_ram_bytes) { + void *ram; + MemoryRegion *mr; + + bytes_sent = ram_page_save(f); + /* No more ram pages. */ + if (bytes_sent == 0) { + return bytes_sent; + } + + mr = last_block_local->mr; + ram = memory_region_get_ram_ptr(mr) + last_offset_local; + + /* DONTNEED the ram page that has already copied. */ + qemu_madvise(ram, bytes_sent, QEMU_MADV_DONTNEED); + total_ram_bytes -= bytes_sent; + } + + qemu_mutex_unlock_ramlist(); + + qemu_put_be64(f, RAM_SAVE_FLAG_EOS); + + return bytes_sent; +} + static int load_xbzrle(QEMUFile *f, ram_addr_t addr, void *host) { int ret, rc = 0;
You need to create a new private structure "QEMUFileLocal". Then override f->save_page and point this to your own function. See migration-rdma.c for an example. - Michael
