From owner-freebsd-virtualization@freebsd.org Sun Jan 17 09:21:10 2021 Return-Path: Delivered-To: freebsd-virtualization@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BA3244E213E for ; Sun, 17 Jan 2021 09:21:10 +0000 (UTC) (envelope-from SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au) Received: from alto.onthenet.com.au (alto.OntheNet.com.au [203.13.68.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4DJTtY5ncBz4dt1 for ; Sun, 17 Jan 2021 09:21:09 +0000 (UTC) (envelope-from SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au) Received: from iredmail.onthenet.com.au (iredmail.onthenet.com.au [203.13.68.150]) by alto.onthenet.com.au (Postfix) with ESMTPS id 873742013A2F for ; Sun, 17 Jan 2021 19:21:04 +1000 (AEST) Received: from iredmail.onthenet.com.au (iredmail.onthenet.com.au [127.0.0.1]) by iredmail.onthenet.com.au (Postfix) with ESMTP id 763C720B4AA8 for ; Sun, 17 Jan 2021 19:21:04 +1000 (AEST) Received: from iredmail.onthenet.com.au ([127.0.0.1]) by iredmail.onthenet.com.au (iredmail.onthenet.com.au [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id EBZ1PNXyuxCi for ; Sun, 17 Jan 2021 19:21:04 +1000 (AEST) Received: from MacBook-Air-4.local (unknown [120.29.44.245]) by iredmail.onthenet.com.au (Postfix) with ESMTPSA id 1623720B4AA4; Sun, 17 Jan 2021 19:21:04 +1000 (AEST) Subject: Re: UEFI -l com1, stdio floods console/Windows Server SAC with "rdmsr to register 0x198 on vcpu..." To: Michael Dexter References: Cc: "freebsd-virtualization@freebsd.org" From: Peter Grehan Message-ID: <1dde1e58-3756-a9fd-f44d-6755f7788b1f@freebsd.org> Date: Sun, 17 Jan 2021 19:21:03 +1000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=BZdDLol2 c=1 sm=1 tr=0 a=A6CF0fG5TOl4vs6YHvqXgw==:117 a=vPr5hKY0Sloooc5EDKN//A==:17 a=IkcTkHD0fZMA:10 a=EmqxpYm9HcoA:10 a=6I5d2MoRAAAA:8 a=AWlJdlL5eI4BBi17F7MA:9 a=QEXdDO2ut3YA:10 a=Vw_nbHTFnJIA:10 a=oUM6bzERceAA:10 a=82-kyh_VXv8A:10 a=IjZwj45LgO3ly-622nXo:22 X-Rspamd-Queue-Id: 4DJTtY5ncBz4dt1 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au has no SPF policy when checking 203.13.68.12) smtp.mailfrom=SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au X-Spamd-Result: default: False [-1.90 / 15.00]; TO_DN_EQ_ADDR_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[203.13.68.12:from]; RCVD_TLS_LAST(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCPT_COUNT_TWO(0.00)[2]; FORGED_SENDER(0.30)[grehan@freebsd.org,SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au]; RCVD_IN_DNSWL_LOW(-0.10)[203.13.68.12:from]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[203.13.68.12:from]; ASN(0.00)[asn:9313, ipnet:203.13.68.0/23, country:AU]; MID_RHS_MATCH_FROM(0.00)[]; FROM_NEQ_ENVFROM(0.00)[grehan@freebsd.org,SRS0=dMrA=GU=freebsd.org=grehan@iredmail.onthenet.com.au]; R_DKIM_NA(0.00)[]; ARC_NA(0.00)[]; RCVD_COUNT_FIVE(0.00)[5]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-virtualization@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; AUTH_NA(1.00)[]; SPAMHAUS_ZRD(0.00)[203.13.68.12:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; R_SPF_NA(0.00)[no SPF record]; MAILMAN_DEST(0.00)[freebsd-virtualization] X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jan 2021 09:21:10 -0000 > Can the "rdmsr to register 0x198 on vcpu..." and similar messages on a > -l com1,stdio console when using UEFI firmware be redirected or > suppressed? The -w flag does not silence them, assuming, perhaps > incorrectly, they are unsupported MSRs. > > If redirected, should these be logged? Please file a PR (https://www.freebsd.org/support/bugreports.html) A simple workaround is to use an nmdm or pty device for com1 output. later, Peter.