On Tue, 17 Jul 2012, Anthony PERARD wrote:
> This patch add some calls to xen_modified_memory to notify Xen about dirtybits
> during migration.
>
> Signed-off-by: Anthony PERARD <anthony.per...@citrix.com>
> ---
> exec.c | 4 ++++
> memory.c | 2 ++
> 2 files changed, 6 insertions(+), 0 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index c9fa17d..9f7a4f7 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -3438,6 +3438,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
> uint8_t *buf,
> cpu_physical_memory_set_dirty_flags(
> addr1, (0xff & ~CODE_DIRTY_FLAG));
> }
> + xen_modified_memory(addr1, TARGET_PAGE_SIZE);
> qemu_put_ram_ptr(ptr);
> }
> } else {
> @@ -3623,6 +3624,7 @@ void cpu_physical_memory_unmap(void *buffer,
> target_phys_addr_t len,
> if (buffer != bounce.buffer) {
> if (is_write) {
> ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer);
> + xen_modified_memory(addr1, access_len);
> while (access_len) {
> unsigned l;
> l = TARGET_PAGE_SIZE;
You need to add xen_modified_memory in cpu_physical_memory_map, rather
than cpu_physical_memory_unmap.
