From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53FA9C64E7A for ; Tue, 1 Dec 2020 19:44:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E22C3206F9 for ; Tue, 1 Dec 2020 19:44:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="QyfQHzxc"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="IV+1qwmc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392472AbgLAToc (ORCPT ); Tue, 1 Dec 2020 14:44:32 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:57580 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388204AbgLATob (ORCPT ); Tue, 1 Dec 2020 14:44:31 -0500 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606851829; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=oZMSZJ9B+pz4ruoX5S7orWGoTaF0HgBc602QZCF7JU0=; b=QyfQHzxckn7qkBjfSV1pVAqUbTsikduDPHWrdQAG4HTwq3CU87bm9fh86gPlw6fEmGjQRu FsIWiMLLpu8hq2exqVwQAmoAX/A9ua6qeL+qEQurSj2OvookL6Bfwym7sj+lxqoxq8Fkyy F22enYcGxORliy0GZB+lzqdE0V2En9mFxRrmdLXvh2gRd7d0+CB2vnghntpG9TiOp7kwfg 2xYQO2IGZp/p29qKcHwRwJEGDte9MrezEjaoJL72J7zA8Gmd3Nw+EJkLg4JUH05w/l04le 6TC0fOtF0Zkq9x9ETfEjMfGTXQgUv/lfOXL/WGRT37ZDof1+UXmE8zuC4J7Z2A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606851829; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=oZMSZJ9B+pz4ruoX5S7orWGoTaF0HgBc602QZCF7JU0=; b=IV+1qwmcMVimGabIbOlbCXyCdVSW8AFP3DTZ8qkuiNlrV6sVb/EFXVJQPGl2uW/HuMh/2E AMwe7s/QlMKY39AA== To: Maxim Levitsky , kvm@vger.kernel.org Cc: Paolo Bonzini , Oliver Upton , Ingo Molnar , Sean Christopherson , open list , Marcelo Tosatti , Jonathan Corbet , Wanpeng Li , Borislav Petkov , Jim Mattson , "H. Peter Anvin" , "open list\:DOCUMENTATION" , Joerg Roedel , "maintainer\:X86 ARCHITECTURE \(32-BIT AND 64-BIT\)" , Vitaly Kuznetsov , Maxim Levitsky Subject: Re: [PATCH 1/2] KVM: x86: implement KVM_SET_TSC_PRECISE/KVM_GET_TSC_PRECISE In-Reply-To: <20201130133559.233242-2-mlevitsk@redhat.com> References: <20201130133559.233242-1-mlevitsk@redhat.com> <20201130133559.233242-2-mlevitsk@redhat.com> Date: Tue, 01 Dec 2020 20:43:49 +0100 Message-ID: <87h7p5fh1m.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 30 2020 at 15:35, Maxim Levitsky wrote: > + struct kvm_tsc_info { > + __u32 flags; > + __u64 nsec; > + __u64 tsc; > + __u64 tsc_adjust; > + }; > + > +flags values for ``struct kvm_tsc_info``: > + > +``KVM_TSC_INFO_TSC_ADJUST_VALID`` > + > + ``tsc_adjust`` contains valid IA32_TSC_ADJUST value Why exposing TSC_ADJUST at all? Just because? Thanks, tglx