From 78d07ae7ac74bcc7f79aeefbaff17fb142f44b4d Mon Sep 17 00:00:00 2001 From: Peter Lieven Date: Tue, 26 Mar 2013 10:58:36 +0100 Subject: [PATCH] migration: add an indicator for bulk state of ram migration the first round of ram transfer is special since all pages are dirty and thus all memory pages are transferred to the target. this patch adds a boolean variable to track this stage. Signed-off-by: Peter Lieven Reviewed-by: Eric Blake Reviewed-by: Orit Wasserman Signed-off-by: Juan Quintela --- arch_init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch_init.c b/arch_init.c index dd5deff..1291bd2 100644 --- a/arch_init.c +++ b/arch_init.c @@ -319,6 +319,7 @@ static ram_addr_t last_offset; static unsigned long *migration_bitmap; static uint64_t migration_dirty_pages; static uint32_t last_version; +static bool ram_bulk_stage; static inline ram_addr_t migration_bitmap_find_and_reset_dirty(MemoryRegion *mr, @@ -426,6 +427,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage) if (!block) { block = QTAILQ_FIRST(&ram_list.blocks); complete_round = true; + ram_bulk_stage = false; } } else { uint8_t *p; @@ -529,6 +531,7 @@ static void reset_ram_globals(void) last_sent_block = NULL; last_offset = 0; last_version = ram_list.version; + ram_bulk_stage = true; } #define MAX_WAIT 50 /* ms, half buffered_file limit */ -- 2.7.4