Merge tag 'migration-20230215-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request

This pull request contains:

* Add qemu_file_get_to_fd() a.k.a. make vfio happy(Avihai)
* migration/block is now DPRINTF() free zone (Philippe)
* remove res_compat and improve docs (me)

Please apply.

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# gpg: Signature made Wed 15 Feb 2023 20:05:44 GMT
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20230215-pull-request' of https://gitlab.com/juan.quintela/qemu:
  migration: Rename res_{postcopy,precopy}_only
  migration: Remove unused res_compatible
  migration: In case of postcopy, the memory ends in res_postcopy_only
  migration/block: Convert remaining DPRINTF() debug macro to trace events
  migration/qemu-file: Add qemu_file_get_to_fd()

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

1 files changed, 10 insertions, 18 deletions

diff --git a/migration/savevm.c b/migration/savevm.c
index b5e6962bb6..aa54a67fda 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1541,15 +1541,13 @@ flush:
  * the result is split into the amount for units that can and
  * for units that can't do postcopy.
  */
-void qemu_savevm_state_pending_estimate(uint64_t *res_precopy_only,
-                                        uint64_t *res_compatible,
-                                        uint64_t *res_postcopy_only)
+void qemu_savevm_state_pending_estimate(uint64_t *must_precopy,
+                                        uint64_t *can_postcopy)
 {
     SaveStateEntry *se;
 
-    *res_precopy_only = 0;
-    *res_compatible = 0;
-    *res_postcopy_only = 0;
+    *must_precopy = 0;
+    *can_postcopy = 0;
 
     QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
         if (!se->ops || !se->ops->state_pending_estimate) {
@@ -1560,21 +1558,17 @@ void qemu_savevm_state_pending_estimate(uint64_t *res_precopy_only,
                 continue;
             }
         }
-        se->ops->state_pending_estimate(se->opaque,
-                                        res_precopy_only, res_compatible,
-                                        res_postcopy_only);
+        se->ops->state_pending_estimate(se->opaque, must_precopy, can_postcopy);
     }
 }
 
-void qemu_savevm_state_pending_exact(uint64_t *res_precopy_only,
-                                     uint64_t *res_compatible,
-                                     uint64_t *res_postcopy_only)
+void qemu_savevm_state_pending_exact(uint64_t *must_precopy,
+                                     uint64_t *can_postcopy)
 {
     SaveStateEntry *se;
 
-    *res_precopy_only = 0;
-    *res_compatible = 0;
-    *res_postcopy_only = 0;
+    *must_precopy = 0;
+    *can_postcopy = 0;
 
     QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
         if (!se->ops || !se->ops->state_pending_exact) {
@@ -1585,9 +1579,7 @@ void qemu_savevm_state_pending_exact(uint64_t *res_precopy_only,
                 continue;
             }
         }
-        se->ops->state_pending_exact(se->opaque,
-                                     res_precopy_only, res_compatible,
-                                     res_postcopy_only);
+        se->ops->state_pending_exact(se->opaque, must_precopy, can_postcopy);
     }
 }