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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35097C64ED9 for ; Tue, 21 Feb 2023 07:27:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233637AbjBUH1Z (ORCPT ); Tue, 21 Feb 2023 02:27:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232946AbjBUH1X (ORCPT ); Tue, 21 Feb 2023 02:27:23 -0500 Received: from vulcan.natalenko.name (vulcan.natalenko.name [104.207.131.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B9D07244BC; Mon, 20 Feb 2023 23:27:16 -0800 (PST) Received: from mail.natalenko.name (vulcan.natalenko.name [IPv6:2001:19f0:6c00:8846:5400:ff:fe0c:dfa0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by vulcan.natalenko.name (Postfix) with ESMTPSA id 71BE4123AAF7; Tue, 21 Feb 2023 08:27:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=natalenko.name; s=dkim-20170712; t=1676964433; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UktBiYkkeez87hMqM48Li63kPXU3FfbLk8UmzQ2RKWw=; b=QZC4Pw9o8MidWlTN/5L02j+LoMK6F2ufXZBjCK4usO7euEBOakN9aSoXgJap+ITrXS+acc rKXItmNG7yzx3G4PdBlbSCKQZpp9pjxSJOLXeyxUbu6xwHtgoNVIhJiqHouMgFXRfE2TkY EZyNZ8kvJVi7N//V3luu7IT/3pqfezc= MIME-Version: 1.0 Date: Tue, 21 Feb 2023 08:27:13 +0100 From: Oleksandr Natalenko To: David Woodhouse Cc: Kim Phillips , tglx@linutronix.de, Usama Arif , arjan@linux.intel.com, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, x86@kernel.org, pbonzini@redhat.com, paulmck@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, rcu@vger.kernel.org, mimoja@mimoja.de, hewenliang4@huawei.com, thomas.lendacky@amd.com, seanjc@google.com, pmenzel@molgen.mpg.de, fam.zheng@bytedance.com, punit.agrawal@bytedance.com, simon.evans@bytedance.com, liangma@liangbit.com, Piotr Gorski , "Limonciello, Mario" Subject: Re: [PATCH v9 0/8] Parallel CPU bringup for x86_64 In-Reply-To: <42dc683e2846ae8fc1e09715aaf7884660e1a386.camel@infradead.org> References: <20230215145425.420125-1-usama.arif@bytedance.com> <2668799.mvXUDI8C0e@natalenko.name> <2668869.mvXUDI8C0e@natalenko.name> <2a67f6cf18dd2c1879fad9fd8a28242918d3e5d2.camel@infradead.org> <982e1d6140705414e8fd60b990bd259a@natalenko.name> <715CBABF-4017-4784-8F30-5386F1524830@infradead.org> <67dbc69f-b712-8971-f1c9-5d07f506a19c@amd.com> <42dc683e2846ae8fc1e09715aaf7884660e1a386.camel@infradead.org> Message-ID: <37c18c3aeea2e558633b6da6886111d0@natalenko.name> X-Sender: oleksandr@natalenko.name Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21.02.2023 00:30, David Woodhouse wrote: > Oleksandr, please could you show the output of 'cpuid' after a > successful resume? I'm particularly looking for this part... > > > $ sudo cpuid | grep -A1 1/ebx > miscellaneous (1/ebx): > process local APIC physical ID = 0x0 (0) > -- > miscellaneous (1/ebx): > process local APIC physical ID = 0x2 (2) > ... For me this command doesn't produce any output. Also, no output from the command Kim used in response to you. With no `grep` it just dumps a table of raw hex data. It's `msr-tools` 1.3-4 from Arch. Should I run this command on a patched kernel booted with `no_parallel_bringup`, or on unpatched kernel (if that makes any difference)? -- Oleksandr Natalenko (post-factum)