From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33212) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Useq6-0002a2-8T for qemu-devel@nongnu.org; Fri, 28 Jun 2013 16:00:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Useq3-0000qU-E8 for qemu-devel@nongnu.org; Fri, 28 Jun 2013 16:00:14 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:57296) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Useq3-0000qA-9I for qemu-devel@nongnu.org; Fri, 28 Jun 2013 16:00:11 -0400 Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 28 Jun 2013 16:00:10 -0400 Received: from d01relay01.pok.ibm.com (d01relay01.pok.ibm.com [9.56.227.233]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id 84C34C90044 for ; Fri, 28 Jun 2013 16:00:06 -0400 (EDT) Received: from d01av05.pok.ibm.com (d01av05.pok.ibm.com [9.56.224.195]) by d01relay01.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r5SK07As259860 for ; Fri, 28 Jun 2013 16:00:07 -0400 Received: from d01av05.pok.ibm.com (loopback [127.0.0.1]) by d01av05.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r5SK07H4030364 for ; Fri, 28 Jun 2013 16:00:07 -0400 From: mrhines@linux.vnet.ibm.com Date: Fri, 28 Jun 2013 16:00:00 -0400 Message-Id: <1372449603-20431-6-git-send-email-mrhines@linux.vnet.ibm.com> In-Reply-To: <1372449603-20431-1-git-send-email-mrhines@linux.vnet.ibm.com> References: <1372449603-20431-1-git-send-email-mrhines@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v2 5/8] rdma: send pc.ram List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aliguori@us.ibm.com, quintela@redhat.com, knoel@redhat.com, owasserm@redhat.com, abali@us.ibm.com, mrhines@us.ibm.com, gokul@us.ibm.com, pbonzini@redhat.com, chegu_vinod@hp.com From: "Michael R. Hines" This takes advantages of the previous patches: 1. use the new QEMUFileOps hook 'save_page' 2. call out to the right accessor methods to invoke the iteration hooks defined in QEMUFileOps Reviewed-by: Paolo Bonzini Reviewed-by: Chegu Vinod Tested-by: Chegu Vinod Tested-by: Michael R. Hines Signed-off-by: Michael R. Hines --- arch_init.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/arch_init.c b/arch_init.c index 82657e4..b07bc52 100644 --- a/arch_init.c +++ b/arch_init.c @@ -115,6 +115,7 @@ const uint32_t arch_type = QEMU_ARCH; #define RAM_SAVE_FLAG_EOS 0x10 #define RAM_SAVE_FLAG_CONTINUE 0x20 #define RAM_SAVE_FLAG_XBZRLE 0x40 +/* 0x80 is reserved in migration.h start with 0x100 next */ static struct defconfig_file { @@ -447,6 +448,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage) ram_bulk_stage = false; } } else { + int ret; uint8_t *p; int cont = (block == last_sent_block) ? RAM_SAVE_FLAG_CONTINUE : 0; @@ -455,7 +457,18 @@ static int ram_save_block(QEMUFile *f, bool last_stage) /* In doubt sent page as normal */ bytes_sent = -1; - if (is_zero_page(p)) { + ret = ram_control_save_page(f, block->offset, + offset, TARGET_PAGE_SIZE, &bytes_sent); + + if (ret != RAM_SAVE_CONTROL_NOT_SUPP) { + if (ret != RAM_SAVE_CONTROL_DELAYED) { + if (bytes_sent > 0) { + acct_info.norm_pages++; + } else if (bytes_sent == 0) { + acct_info.dup_pages++; + } + } + } else if (is_zero_page(p)) { acct_info.dup_pages++; bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS); @@ -605,6 +618,10 @@ static int ram_save_setup(QEMUFile *f, void *opaque) } qemu_mutex_unlock_ramlist(); + + ram_control_before_iterate(f, RAM_CONTROL_SETUP); + ram_control_after_iterate(f, RAM_CONTROL_SETUP); + qemu_put_be64(f, RAM_SAVE_FLAG_EOS); return 0; @@ -623,6 +640,8 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) reset_ram_globals(); } + ram_control_before_iterate(f, RAM_CONTROL_ROUND); + t0 = qemu_get_clock_ns(rt_clock); i = 0; while ((ret = qemu_file_rate_limit(f)) == 0) { @@ -653,6 +672,12 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) qemu_mutex_unlock_ramlist(); + /* + * Must occur before EOS (or any QEMUFile operation) + * because of RDMA protocol. + */ + ram_control_after_iterate(f, RAM_CONTROL_ROUND); + if (ret < 0) { bytes_transferred += total_sent; return ret; @@ -670,6 +695,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) qemu_mutex_lock_ramlist(); migration_bitmap_sync(); + ram_control_before_iterate(f, RAM_CONTROL_FINISH); + /* try transferring iterative blocks of memory */ /* flush all remaining blocks regardless of rate limiting */ @@ -683,6 +710,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) } bytes_transferred += bytes_sent; } + + ram_control_after_iterate(f, RAM_CONTROL_FINISH); migration_end(); qemu_mutex_unlock_ramlist(); @@ -885,6 +914,8 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) ret = -EINVAL; goto done; } + } else if (flags & RAM_SAVE_FLAG_HOOK) { + ram_control_load_hook(f, flags); } error = qemu_file_get_error(f); if (error) { -- 1.7.10.4