Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20170421' into staging

migration/next for 20170421

# gpg: Signature made Fri 21 Apr 2017 11:28:13 BST
# gpg:                using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* remotes/juanquintela/tags/migration/20170421: (65 commits)
  hmp: info migrate_parameters format tunes
  hmp: info migrate_capability format tunes
  migration: rename max_size to threshold_size
  migration: set current_active_state once
  virtio-rng: stop virtqueue while the CPU is stopped
  migration: don't close a file descriptor while it can be in use
  ram: Remove migration_bitmap_extend()
  migration: Disable hotplug/unplug during migration
  qdev: Move qdev_unplug() to qdev-monitor.c
  qdev: Export qdev_hot_removed
  qdev: qdev_hotplug is really a bool
  migration: Remove MigrationState parameter from migration_is_idle()
  ram: Use RAMBitmap type for coherence
  ram: rename last_ram_offset() last_ram_pages()
  ram: Use ramblock and page offset instead of absolute offset
  ram: Change offset field in PageSearchStatus to page
  ram: Remember last_page instead of last_offset
  ram: Use page number instead of an address for the bitmap operations
  ram: reorganize last_sent_block
  ram: ram_discard_range() don't use the mis parameter
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index dc80dbb67f..85fd8d72b3 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -123,7 +123,7 @@ bool postcopy_ram_supported_by_host(void)
     struct uffdio_range range_struct;
     uint64_t feature_mask;
 
-    if ((1ul << qemu_target_page_bits()) > pagesize) {
+    if (qemu_target_page_size() > pagesize) {
         error_report("Target page size bigger than host page size");
         goto out;
     }
@@ -213,8 +213,6 @@ out:
 static int init_range(const char *block_name, void *host_addr,
                       ram_addr_t offset, ram_addr_t length, void *opaque)
 {
-    MigrationIncomingState *mis = opaque;
-
     trace_postcopy_init_range(block_name, host_addr, offset, length);
 
     /*
@@ -223,7 +221,7 @@ static int init_range(const char *block_name, void *host_addr,
      * - we're going to get the copy from the source anyway.
      * (Precopy will just overwrite this data, so doesn't need the discard)
      */
-    if (ram_discard_range(mis, block_name, 0, length)) {
+    if (ram_discard_range(block_name, 0, length)) {
         return -1;
     }
 
@@ -271,7 +269,7 @@ static int cleanup_range(const char *block_name, void *host_addr,
  */
 int postcopy_ram_incoming_init(MigrationIncomingState *mis, size_t ram_pages)
 {
-    if (qemu_ram_foreach_block(init_range, mis)) {
+    if (qemu_ram_foreach_block(init_range, NULL)) {
         return -1;
     }
 
@@ -745,10 +743,10 @@ PostcopyDiscardState *postcopy_discard_send_init(MigrationState *ms,
 void postcopy_discard_send_range(MigrationState *ms, PostcopyDiscardState *pds,
                                 unsigned long start, unsigned long length)
 {
-    size_t tp_bits = qemu_target_page_bits();
+    size_t tp_size = qemu_target_page_size();
     /* Convert to byte offsets within the RAM block */
-    pds->start_list[pds->cur_entry] = (start - pds->offset) << tp_bits;
-    pds->length_list[pds->cur_entry] = length << tp_bits;
+    pds->start_list[pds->cur_entry] = (start - pds->offset) * tp_size;
+    pds->length_list[pds->cur_entry] = length * tp_size;
     trace_postcopy_discard_send_range(pds->ramblock_name, start, length);
     pds->cur_entry++;
     pds->nsentwords++;