migration: Export ram.c functions in its own file

All functions are internal except for ram_mig_init().  Create
migration/misc.h for this kind of functions.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

include/migration/migration.h

@@ -171,38 +171,6 @@ bool migration_in_postcopy(void);
 bool migration_in_postcopy_after_devices(MigrationState *);
 MigrationState *migrate_get_current(void);
 
-void migrate_compress_threads_create(void);
-void migrate_compress_threads_join(void);
-void migrate_decompress_threads_create(void);
-void migrate_decompress_threads_join(void);
-uint64_t ram_bytes_remaining(void);
-uint64_t ram_bytes_transferred(void);
-uint64_t ram_bytes_total(void);
-uint64_t ram_dirty_sync_count(void);
-uint64_t ram_dirty_pages_rate(void);
-uint64_t ram_postcopy_requests(void);
-void free_xbzrle_decoded_buf(void);
-
-void acct_update_position(QEMUFile *f, size_t size, bool zero);
-
-uint64_t dup_mig_pages_transferred(void);
-uint64_t norm_mig_pages_transferred(void);
-uint64_t xbzrle_mig_bytes_transferred(void);
-uint64_t xbzrle_mig_pages_transferred(void);
-uint64_t xbzrle_mig_pages_overflow(void);
-uint64_t xbzrle_mig_pages_cache_miss(void);
-double xbzrle_mig_cache_miss_rate(void);
-
-void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
-void ram_debug_dump_bitmap(unsigned long *todump, bool expected,
-                           unsigned long pages);
-/* For outgoing discard bitmap */
-int ram_postcopy_send_discard_bitmap(MigrationState *ms);
-/* For incoming postcopy discard */
-int ram_discard_range(const char *block_name, uint64_t start, size_t length);
-int ram_postcopy_incoming_init(MigrationIncomingState *mis);
-void ram_postcopy_migrated_memory_release(MigrationState *ms);
-
 bool migrate_release_ram(void);
 bool migrate_postcopy_ram(void);
 bool migrate_zero_blocks(void);
@@ -213,8 +181,6 @@ int migrate_use_xbzrle(void);
 int64_t migrate_xbzrle_cache_size(void);
 bool migrate_colo_enabled(void);
 
-int64_t xbzrle_cache_resize(int64_t new_size);
-
 bool migrate_use_block(void);
 bool migrate_use_block_incremental(void);
 
@@ -253,7 +219,6 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
                              ram_addr_t offset, size_t size,
                              uint64_t *bytes_sent);
 
-void ram_mig_init(void);
 void savevm_skip_section_footers(void);
 void register_global_state(void);
 void global_state_set_optional(void);
@@ -261,7 +226,4 @@ void savevm_skip_configuration(void);
 int global_state_store(void);
 void global_state_store_running(void);
 
-void migration_page_queue_free(void);
-int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
-uint64_t ram_pagesize_summary(void);
 #endif

include/migration/misc.h

@@ -0,0 +1,21 @@
+/*
+ * QEMU migration miscellaneus exported functions
+ *
+ * Copyright IBM, Corp. 2008
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef MIGRATION_MISC_H
+#define MIGRATION_MISC_H
+
+/* migration/ram.c */
+
+void ram_mig_init(void);
+
+#endif

migration/migration.c

@@ -22,6 +22,7 @@
 #include "fd.h"
 #include "socket.h"
 #include "rdma.h"
+#include "ram.h"
 #include "migration/migration.h"
 #include "savevm.h"
 #include "qemu-file-channel.h"

migration/postcopy-ram.c

@@ -24,6 +24,7 @@
 #include "qemu-file.h"
 #include "savevm.h"
 #include "postcopy-ram.h"
+#include "ram.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/balloon.h"
 #include "qemu/error-report.h"

migration/ram.c

@@ -36,7 +36,9 @@
 #include "qemu/timer.h"
 #include "qemu/main-loop.h"
 #include "xbzrle.h"
+#include "ram.h"
 #include "migration/migration.h"
+#include "migration/misc.h"
 #include "qemu-file.h"
 #include "migration/vmstate.h"
 #include "postcopy-ram.h"

migration/ram.h

@@ -0,0 +1,70 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2011-2015 Red Hat Inc
+ *
+ * Authors:
+ *  Juan Quintela <quintela@redhat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_MIGRATION_RAM_H
+#define QEMU_MIGRATION_RAM_H
+
+#include "qemu-common.h"
+#include "exec/cpu-common.h"
+
+int64_t xbzrle_cache_resize(int64_t new_size);
+uint64_t dup_mig_pages_transferred(void);
+uint64_t norm_mig_pages_transferred(void);
+uint64_t xbzrle_mig_bytes_transferred(void);
+uint64_t xbzrle_mig_pages_transferred(void);
+uint64_t xbzrle_mig_pages_cache_miss(void);
+double xbzrle_mig_cache_miss_rate(void);
+uint64_t xbzrle_mig_pages_overflow(void);
+uint64_t ram_bytes_transferred(void);
+uint64_t ram_bytes_remaining(void);
+uint64_t ram_dirty_sync_count(void);
+uint64_t ram_dirty_pages_rate(void);
+uint64_t ram_postcopy_requests(void);
+uint64_t ram_bytes_total(void);
+
+void migrate_compress_threads_create(void);
+void migrate_compress_threads_join(void);
+void migrate_decompress_threads_create(void);
+void migrate_decompress_threads_join(void);
+
+uint64_t ram_pagesize_summary(void);
+void migration_page_queue_free(void);
+int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
+void acct_update_position(QEMUFile *f, size_t size, bool zero);
+void free_xbzrle_decoded_buf(void);
+void ram_debug_dump_bitmap(unsigned long *todump, bool expected,
+                           unsigned long pages);
+void ram_postcopy_migrated_memory_release(MigrationState *ms);
+/* For outgoing discard bitmap */
+int ram_postcopy_send_discard_bitmap(MigrationState *ms);
+/* For incoming postcopy discard */
+int ram_discard_range(const char *block_name, uint64_t start, size_t length);
+int ram_postcopy_incoming_init(MigrationIncomingState *mis);
+
+void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
+#endif

migration/rdma.c

@@ -20,7 +20,7 @@
 #include "rdma.h"
 #include "migration/migration.h"
 #include "qemu-file.h"
-#include "exec/cpu-common.h"
+#include "ram.h"
 #include "qemu-file-channel.h"
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"

migration/savevm.c

@@ -36,6 +36,7 @@
 #include "qemu/timer.h"
 #include "migration/migration.h"
 #include "migration/snapshot.h"
+#include "ram.h"
 #include "qemu-file-channel.h"
 #include "qemu-file.h"
 #include "savevm.h"

vl.c

@@ -87,6 +87,7 @@ int main(int argc, char **argv)
 #include "sysemu/blockdev.h"
 #include "hw/block/block.h"
 #include "migration/block.h"
+#include "migration/misc.h"
 #include "migration/snapshot.h"
 #include "sysemu/tpm.h"
 #include "sysemu/dma.h"