From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753835AbdJaU2N (ORCPT ); Tue, 31 Oct 2017 16:28:13 -0400 Received: from mail-io0-f195.google.com ([209.85.223.195]:51192 "EHLO mail-io0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752066AbdJaU2L (ORCPT ); Tue, 31 Oct 2017 16:28:11 -0400 X-Google-Smtp-Source: ABhQp+TDTidlXdJdyClzXBbMQGr0vqBxlAFJv1hhkWcR7+9K90X2TDLOahUzAtr/0Xexrtvc4fbeYA== 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-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) -- 2.7.4