@@ -539,7 +539,7 @@ static int multifd_send_page(uint8_t *address)
qemu_cond_signal(&multifd_send[i].cond);
qemu_mutex_unlock(&multifd_send[i].mutex);
- return 0;
+ return i;
}
struct MultiFDRecvParams {
@@ -1056,6 +1056,7 @@ static int ram_multifd_page(QEMUFile *f, PageSearchStatus *pss,
bool last_stage, uint64_t *bytes_transferred)
{
int pages;
+ uint16_t fd_num;
uint8_t *p;
RAMBlock *block = pss->block;
ram_addr_t offset = pss->offset;
@@ -1069,8 +1070,10 @@ static int ram_multifd_page(QEMUFile *f, PageSearchStatus *pss,
if (pages == -1) {
*bytes_transferred +=
save_page_header(f, block, offset | RAM_SAVE_FLAG_MULTIFD_PAGE);
+ fd_num = multifd_send_page(p);
+ qemu_put_be16(f, fd_num);
+ *bytes_transferred += 2; /* size of fd_num */
qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
- multifd_send_page(p);
*bytes_transferred += TARGET_PAGE_SIZE;
pages = 1;
acct_info.norm_pages++;
@@ -2758,6 +2761,7 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
while (!postcopy_running && !ret && !(flags & RAM_SAVE_FLAG_EOS)) {
ram_addr_t addr, total_ram_bytes;
void *host = NULL;
+ uint16_t fd_num;
uint8_t ch;
addr = qemu_get_be64(f);
@@ -2843,6 +2847,11 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
break;
case RAM_SAVE_FLAG_MULTIFD_PAGE:
+ fd_num = qemu_get_be16(f);
+ if (fd_num != 0) {
+ /* this is yet an unused variable, changed later */
+ fd_num = 0;
+ }
qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
break;
We are still sending the page through the main channel, that would change later in the series Signed-off-by: Juan Quintela <quintela@redhat.com> --- migration/ram.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)