From patchwork Wed Sep 14 07:58:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 9330923 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BAE126077F for ; Wed, 14 Sep 2016 08:42:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ABEE329B83 for ; Wed, 14 Sep 2016 08:42:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A087529B85; Wed, 14 Sep 2016 08:42:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5F9CA29B83 for ; Wed, 14 Sep 2016 08:42:08 +0000 (UTC) Received: from localhost ([::1]:54285 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk5lf-0005Ze-3I for patchwork-qemu-devel@patchwork.kernel.org; Wed, 14 Sep 2016 04:42:07 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40355) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk5eS-0008Kl-3P for qemu-devel@nongnu.org; Wed, 14 Sep 2016 04:34:40 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bk5eO-0006sm-Sj for qemu-devel@nongnu.org; Wed, 14 Sep 2016 04:34:40 -0400 Received: from isrv.corpit.ru ([86.62.121.231]:34544) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk5eO-0006rY-Kh; Wed, 14 Sep 2016 04:34:36 -0400 Received: from tsrv.tls.msk.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 6F9604184B; Wed, 14 Sep 2016 11:34:32 +0300 (MSK) Received: from tls.msk.ru (mjt.vpn.tls.msk.ru [192.168.177.99]) by tsrv.tls.msk.ru (Postfix) with SMTP id 6E221AEB; Wed, 14 Sep 2016 10:58:58 +0300 (MSK) Received: (nullmailer pid 17343 invoked by uid 1000); Wed, 14 Sep 2016 07:58:57 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Date: Wed, 14 Sep 2016 10:58:42 +0300 Message-Id: <22615ae878f8b923f5325bb13af83897f5452898.1473839869.git.mjt@msgid.tls.msk.ru> X-Mailer: git-send-email 2.1.4 In-Reply-To: References: In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 86.62.121.231 Subject: [Qemu-devel] [PULL 16/27] cpus: update comments X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-trivial@nongnu.org, Paolo Bonzini , Cao jin , Michael Tokarev , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Cao jin The returned value of cpu_get_clock() is plused with the offset, so it is the time elapsed in virtual machine when vm is active. Cc: Paolo Bonzini Cc Peter Crosthwaite Cc: Richard Henderson Signed-off-by: Cao jin Signed-off-by: Michael Tokarev --- cpus.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/cpus.c b/cpus.c index a70b536..5d5e374 100644 --- a/cpus.c +++ b/cpus.c @@ -191,7 +191,7 @@ int64_t cpu_icount_to_ns(int64_t icount) return icount << icount_time_shift; } -/* return the host CPU cycle counter and handle stop/restart */ +/* return the host CPU cycle counter */ /* Caller must hold the BQL */ int64_t cpu_get_ticks(void) { @@ -229,7 +229,8 @@ static int64_t cpu_get_clock_locked(void) return time; } -/* return the host CPU monotonic time */ +/* Return the monotonic time elapsed in VM, i.e., + * the time between vm_start and vm_stop */ int64_t cpu_get_clock(void) { int64_t ti;