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 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 49371EE020D for ; Wed, 13 Sep 2023 20:31:59 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.601609.937717 (Exim 4.92) (envelope-from ) id 1qgWWa-0003A4-RN; Wed, 13 Sep 2023 20:31:48 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 601609.937717; Wed, 13 Sep 2023 20:31:48 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qgWWa-00039x-Mu; Wed, 13 Sep 2023 20:31:48 +0000 Received: by outflank-mailman (input) for mailman id 601609; Wed, 13 Sep 2023 20:31:46 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qgWWY-00036K-Dz for xen-devel@lists.xenproject.org; Wed, 13 Sep 2023 20:31:46 +0000 Received: from galois.linutronix.de (galois.linutronix.de [2a0a:51c0:0:12e:550::1]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 8dcdadda-5274-11ee-9b0d-b553b5be7939; Wed, 13 Sep 2023 22:31:44 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 8dcdadda-5274-11ee-9b0d-b553b5be7939 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1694637103; 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=QvkOsN1rW+cp52e2+U4Pd+r05FQCQ6lhz8OcOV4VJRg=; b=C6R/MqGX0vKqtOvLU3C+zB1Ud6qHIXTZENaw6i8p6l71u60mxd8dlKBzHfonNFw3slv6hk /un+sL9MS5Hpo1Ry3zGP58xwRyGilAKfe4gTKGOTjbO8Yz450mHvTShaRsKfwtZ1fVSipe sadVgwt4pQJlGVgPbIkL9kDrgU35Gy+yxJnCIrQWdoIH0JWqTQAHj+8EqeU0I9WFnsnmcE T9gV38fWLcZ/QAu3GYxKy0yqIinywKACLqP8t3ET8dkhUvSU5k/JSJiLL2DPFaQBBRo9hz JZDPEPIFkjeKbyAK4BOaxjRIPXwnChK6aBGw6XR9zdhrpvl/c2V5+ptX7fNsew== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1694637103; 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=QvkOsN1rW+cp52e2+U4Pd+r05FQCQ6lhz8OcOV4VJRg=; b=TKsu/hjOD1gx9+yb7ULkLNunmTjskubueADGLHtmCtevMFV3bUBtbtKEsvX0XDVbeuf2Xb zKVD0Jx6oGfA82Ag== To: Andrew Cooper , Jan Beulich Cc: Wei Liu , solene@openbsd.org, Marek =?utf-8?Q?Marczykowski?= =?utf-8?Q?-G=C3=B3recki?= , Demi Marie Obenour , Roger Pau Monne , xen-devel@lists.xenproject.org, the arch/x86 maintainers Subject: Re: [Xen PATCH] x86/amd: do not expose HWCR.TscFreqSel to guests In-Reply-To: References: <20230912162305.34339-1-roger.pau@citrix.com> <2cfcda8f-bd51-085b-997a-0ff31434d460@suse.com> Date: Wed, 13 Sep 2023 22:31:43 +0200 Message-ID: <87sf7hzufk.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain On Wed, Sep 13 2023 at 12:02, Andrew Cooper wrote: > The PSTATE MSRs are entirely model specific, fully read/write, and the > Enable bit is not an enable bit; its a "not valid yet" bit that firmware > is required to adjust to be consistent across the coherency fabric. > > Linux is simply wrong with it's printk() under virt, and wants adjusting. No objections from my side. Thanks, tglx