diff options
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/ram.c | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/migration/ram.c b/migration/ram.c index 18620784c6..329153d97d 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1362,14 +1362,18 @@ static int find_dirty_block(RAMState *rs, PageSearchStatus *pss) pss->block = QLIST_NEXT_RCU(pss->block, next); if (!pss->block) { if (migrate_multifd() && - !migrate_multifd_flush_after_each_section()) { + (!migrate_multifd_flush_after_each_section() || + migrate_mapped_ram())) { QEMUFile *f = rs->pss[RAM_CHANNEL_PRECOPY].pss_channel; int ret = multifd_send_sync_main(); if (ret < 0) { return ret; } - qemu_put_be64(f, RAM_SAVE_FLAG_MULTIFD_FLUSH); - qemu_fflush(f); + + if (!migrate_mapped_ram()) { + qemu_put_be64(f, RAM_SAVE_FLAG_MULTIFD_FLUSH); + qemu_fflush(f); + } } /* * If memory migration starts over, we will meet a dirtied page @@ -3111,7 +3115,8 @@ static int ram_save_setup(QEMUFile *f, void *opaque) return ret; } - if (migrate_multifd() && !migrate_multifd_flush_after_each_section()) { + if (migrate_multifd() && !migrate_multifd_flush_after_each_section() + && !migrate_mapped_ram()) { qemu_put_be64(f, RAM_SAVE_FLAG_MULTIFD_FLUSH); } @@ -3242,7 +3247,8 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) out: if (ret >= 0 && migration_is_setup_or_active(migrate_get_current()->state)) { - if (migrate_multifd() && migrate_multifd_flush_after_each_section()) { + if (migrate_multifd() && migrate_multifd_flush_after_each_section() && + !migrate_mapped_ram()) { ret = multifd_send_sync_main(); if (ret < 0) { return ret; @@ -3334,7 +3340,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) } } - if (migrate_multifd() && !migrate_multifd_flush_after_each_section()) { + if (migrate_multifd() && !migrate_multifd_flush_after_each_section() && + !migrate_mapped_ram()) { qemu_put_be64(f, RAM_SAVE_FLAG_MULTIFD_FLUSH); } qemu_put_be64(f, RAM_SAVE_FLAG_EOS); @@ -4137,6 +4144,12 @@ static int ram_load_precopy(QEMUFile *f) invalid_flags |= RAM_SAVE_FLAG_COMPRESS_PAGE; } + if (migrate_mapped_ram()) { + invalid_flags |= (RAM_SAVE_FLAG_HOOK | RAM_SAVE_FLAG_MULTIFD_FLUSH | + RAM_SAVE_FLAG_PAGE | RAM_SAVE_FLAG_XBZRLE | + RAM_SAVE_FLAG_ZERO); + } + while (!ret && !(flags & RAM_SAVE_FLAG_EOS)) { ram_addr_t addr; void *host = NULL, *host_bak = NULL; @@ -4158,6 +4171,8 @@ static int ram_load_precopy(QEMUFile *f) addr &= TARGET_PAGE_MASK; if (flags & invalid_flags) { + error_report("Unexpected RAM flags: %d", flags & invalid_flags); + if (flags & invalid_flags & RAM_SAVE_FLAG_COMPRESS_PAGE) { error_report("Received an unexpected compressed page"); } @@ -4210,6 +4225,10 @@ static int ram_load_precopy(QEMUFile *f) switch (flags & ~RAM_SAVE_FLAG_CONTINUE) { case RAM_SAVE_FLAG_MEM_SIZE: ret = parse_ramblocks(f, addr); + + if (migrate_mapped_ram()) { + multifd_recv_sync_main(); + } break; case RAM_SAVE_FLAG_ZERO: @@ -4250,7 +4269,12 @@ static int ram_load_precopy(QEMUFile *f) case RAM_SAVE_FLAG_EOS: /* normal exit */ if (migrate_multifd() && - migrate_multifd_flush_after_each_section()) { + migrate_multifd_flush_after_each_section() && + /* + * Mapped-ram migration flushes once and for all after + * parsing ramblocks. Always ignore EOS for it. + */ + !migrate_mapped_ram()) { multifd_recv_sync_main(); } break; |