From patchwork Wed Sep 14 07:58:40 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 9330825 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 3EBF7607FD for ; Wed, 14 Sep 2016 08:23:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2E87829ACF for ; Wed, 14 Sep 2016 08:23:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1F3D429AD2; Wed, 14 Sep 2016 08:23:03 +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 A628929ACF for ; Wed, 14 Sep 2016 08:23:02 +0000 (UTC) Received: from localhost ([::1]:54155 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk5TB-0007FM-Dk for patchwork-qemu-devel@patchwork.kernel.org; Wed, 14 Sep 2016 04:23:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32823) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk561-0005mZ-GN for qemu-devel@nongnu.org; Wed, 14 Sep 2016 03:59:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bk55y-0004YY-N8 for qemu-devel@nongnu.org; Wed, 14 Sep 2016 03:59:05 -0400 Received: from isrv.corpit.ru ([86.62.121.231]:37558) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bk55y-0004Wa-FA; Wed, 14 Sep 2016 03:59:02 -0400 Received: from tsrv.tls.msk.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id A1B4D41847; Wed, 14 Sep 2016 10:58:58 +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 1D1CDAAB; Wed, 14 Sep 2016 10:58:58 +0300 (MSK) Received: (nullmailer pid 17339 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 10:58:40 +0300 Message-Id: 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 14/27] timer: 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 , Peter Maydell 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 comments is outdated. The patch has following changes: 1. tense correction. 2. all clock time value is returned in nanoseconds, so, they are same in precision. 3. virtual clock doesn't use cpu cycles. Cc: Paolo Bonzini Cc: Peter Maydell Signed-off-by: Cao jin Signed-off-by: Michael Tokarev --- include/qemu/timer.h | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/include/qemu/timer.h b/include/qemu/timer.h index 4bfcd35..bdfae00 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -22,23 +22,20 @@ * @QEMU_CLOCK_REALTIME: Real time clock * * The real time clock should be used only for stuff which does not - * change the virtual machine state, as it is run even if the virtual - * machine is stopped. The real time clock has a frequency of 1000 - * Hz. + * change the virtual machine state, as it runs even if the virtual + * machine is stopped. * * @QEMU_CLOCK_VIRTUAL: virtual clock * - * The virtual clock is only run during the emulation. It is stopped - * when the virtual machine is stopped. Virtual timers use a high - * precision clock, usually cpu cycles (use ticks_per_sec). + * The virtual clock only runs during the emulation. It stops + * when the virtual machine is stopped. * * @QEMU_CLOCK_HOST: host clock * - * The host clock should be use for device models that emulate accurate + * The host clock should be used for device models that emulate accurate * real time sources. It will continue to run when the virtual machine * is suspended, and it will reflect system time changes the host may - * undergo (e.g. due to NTP). The host clock has the same precision as - * the virtual clock. + * undergo (e.g. due to NTP). * * @QEMU_CLOCK_VIRTUAL_RT: realtime clock used for icount warp * @@ -77,10 +74,6 @@ struct QEMUTimer { extern QEMUTimerListGroup main_loop_tlg; /* - * QEMUClockType - */ - -/* * qemu_clock_get_ns; * @type: the clock type *