From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:39445) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UJ1e5-00058n-RT for qemu-devel@nongnu.org; Fri, 22 Mar 2013 09:04:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UJ1dz-0003Aw-PL for qemu-devel@nongnu.org; Fri, 22 Mar 2013 09:04:33 -0400 Received: from [2a02:248:0:30:223:aeff:fefe:7f1c] (port=45992 helo=dns.kamp-intra.net) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UJ1N4-0005Za-OW for qemu-devel@nongnu.org; Fri, 22 Mar 2013 08:46:58 -0400 From: Peter Lieven Date: Fri, 22 Mar 2013 13:46:07 +0100 Message-Id: <1363956370-23681-7-git-send-email-pl@kamp.de> In-Reply-To: <1363956370-23681-1-git-send-email-pl@kamp.de> References: <1363956370-23681-1-git-send-email-pl@kamp.de> Subject: [Qemu-devel] [PATCHv4 6/9] migration: add an indicator for bulk state of ram migration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: quintela@redhat.com, Stefan Hajnoczi , Peter Lieven , Orit Wasserman , Paolo Bonzini 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 --- arch_init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch_init.c b/arch_init.c index 9ebca83..4c4caf4 100644 --- a/arch_init.c +++ b/arch_init.c @@ -317,6 +317,7 @@ 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, @@ -424,6 +425,7 @@ 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; @@ -527,6 +529,7 @@ 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 */ -- 1.7.9.5