From patchwork Tue Oct 31 20:28:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 10035373 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 68748602B5 for ; Tue, 31 Oct 2017 20:28:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5C90A28858 for ; Tue, 31 Oct 2017 20:28:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5162828AF7; Tue, 31 Oct 2017 20:28:25 +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=-6.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_HI,RCVD_IN_SORBS_SPAM autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09BA828858 for ; Tue, 31 Oct 2017 20:28:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753797AbdJaU2M (ORCPT ); Tue, 31 Oct 2017 16:28:12 -0400 Received: from mail-io0-f194.google.com ([209.85.223.194]:45411 "EHLO mail-io0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753659AbdJaU2L (ORCPT ); Tue, 31 Oct 2017 16:28:11 -0400 Received: by mail-io0-f194.google.com with SMTP id i38so1633320iod.2 for ; Tue, 31 Oct 2017 13:28:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:subject:message-id:mime-version:content-disposition :user-agent; bh=m7r3nJmQ5Uq40HETgL3Oob5XUxtB118YWiFeRXGqgnY=; b=bzMaAG2QDYuNv8Sv4AC6ziYfGpLQ/PziubAN9JUjDT9cghQr9Sjg+KA2UV5BOunj66 rdknnwTtRsnVbh8fBZGgDJy4gPMfgppjhg1UbtEpbcqtikQ3iEDsIBumiLZOCa3JH2ih Zm1ihDU9yUCKojBSaGhnfe+X3uM69JrAhJVvPOpsmcaSULmVTX9+28FvJ9cHvjoZiOf8 yrfFISKmox+QmgtMKalN4yrfGsDIHhpv9RQCUvgKo19/YqqyO8IeDvyDjtfL12/0pUV+ wdLJTVNWX19CV6t6ajah3b9vt0dGMpE9Uy9pLuWyRgc+VerIlkZnW4hkMx+KrF7AtDeN MlNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition:user-agent; bh=m7r3nJmQ5Uq40HETgL3Oob5XUxtB118YWiFeRXGqgnY=; b=TyIELOOChW5vvsAsZUlNmG/1Ym8seNh26aqZWJbrZcY4xitcxhVTtYNXxaGE7IVBud Xkg5c8XUVTHWZQSE6XDsWbt6lmiq7Ra4mZIAECq+sK9YY0WhMOQ2XkVc4xjRn4zrzp7T 4399s/hqKIUFR2JyHV47SC8ewoi///qPilY6p7iWSIqOgODjx05NKxq8D3PspAgFmn7m rUg1ueOe6kw8omnMteawss/VdxXKIcyGvqz+NgkJVyL0l1YvkgdVJoGxlKe/XtJN/gom MNt47DXJGujWpCvYz3MlksBCjABpMtAUHL6pQYYkG/LO1akMtmjnQP8BbHJgJ8tJWbvR 3WBw== X-Gm-Message-State: AMCzsaXl0hJPdJWMPBGT4Au+1mDvGXTGD30YUFZ8Ea6NDvm7jsBe/nSy IKaoG5SD0czZ25jmWEsw9UCJAha/LhE= X-Google-Smtp-Source: ABhQp+TDTidlXdJdyClzXBbMQGr0vqBxlAFJv1hhkWcR7+9K90X2TDLOahUzAtr/0Xexrtvc4fbeYA== X-Received: by 10.36.68.146 with SMTP id o140mr4807410ita.74.1509481690929; Tue, 31 Oct 2017 13:28:10 -0700 (PDT) Received: from ziepe.ca (S010614cc2056d97f.ed.shawcable.net. [70.74.179.152]) by smtp.gmail.com with ESMTPSA id e34sm1045304ioj.83.2017.10.31.13.28.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 31 Oct 2017 13:28:10 -0700 (PDT) Received: from jgg by wakko.ziepe.ca with local (Exim 4.86_2) (envelope-from ) id 1e9d8r-0000LU-KR; Tue, 31 Oct 2017 14:28:09 -0600 Date: Tue, 31 Oct 2017 14:28:09 -0600 From: Jason Gunthorpe To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , Radim Krm , Paolo Bonzini Subject: [PATCH] kvm: Return -ENODEV from update_persistent_clock Message-ID: <20171031202809.GA1272@ziepe.ca> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP kvm does not support setting the RTC, so the correct result is -ENODEV. Returning -1 will cause sync_cmos_clock to keep trying to set the RTC every second. Signed-off-by: Jason Gunthorpe --- arch/x86/kernel/kvmclock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index d88967659098b5..5b609e28ce3f40 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -79,7 +79,7 @@ static void kvm_get_wallclock(struct timespec *now) static int kvm_set_wallclock(const struct timespec *now) { - return -1; + return -ENODEV; } static u64 kvm_clock_read(void)