Message ID | 20230508185218.183895955@linutronix.de (mailing list archive) |
---|---|
State | Accepted |
Commit | ab24eb9abb9c60c45119370731735b79ed79f36c |
Headers | show
Return-Path: <xen-devel-bounces@lists.xenproject.org> 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 4102BC7EE22 for <xen-devel@archiver.kernel.org>; Mon, 8 May 2023 19:48:01 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.531816.827793 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pw6ps-00011T-4V; Mon, 08 May 2023 19:47:52 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 531816.827793; Mon, 08 May 2023 19:47:51 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pw6pr-0000zA-K3; Mon, 08 May 2023 19:47:51 +0000 Received: by outflank-mailman (input) for mailman id 531816; Mon, 08 May 2023 19:47:49 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from <SRS0=49Re=A5=linutronix.de=tglx@srs-se1.protection.inumbo.net>) id 1pw6m4-0004GB-CO for xen-devel@lists.xenproject.org; Mon, 08 May 2023 19:43:56 +0000 Received: from galois.linutronix.de (galois.linutronix.de [2a0a:51c0:0:12e:550::1]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id aaa15205-edd8-11ed-b226-6b7b168915f2; Mon, 08 May 2023 21:43:55 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion <xen-devel.lists.xenproject.org> List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe> List-Post: <mailto:xen-devel@lists.xenproject.org> List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help> List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe> Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org> X-Inumbo-ID: aaa15205-edd8-11ed-b226-6b7b168915f2 Message-ID: <20230508185218.183895955@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1683575034; 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: references:references; bh=JFZgPCXfk4YqrkWgB2iOW/w2n4X/0HLpXczGoD+v1Vc=; b=dUhrJJpkQ4m0PAJlXgFQayguIDRYj4DbGKW+17HOquchCD5OkCNG5p+ivglj6Zp0QU+I0O sjDl2ZSA2qdGYXZhUvFPnbPFXnAtHugvx2GI+wQbJ19qs9tz5O+rWnDYC86GVW88KAAeKE Y1tCVHUnxg/G/GD2y2S3k8oy8xdR5u5wsZrKD02jMrshweqjIs0USPtzbNHtBjzyPjuZYP bnHk9lUQIZYMlOyOmAOBq9jij07nAxoPfgUgAqbfHUg2W+wm48VsfVgoz2u1VnDCsiAyNh 0QgIUd501thJfEkajmTlocFpAZEG7qATCMndUXAIFuG7nTRHlZ0qw32Bk/xexg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1683575034; 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: references:references; bh=JFZgPCXfk4YqrkWgB2iOW/w2n4X/0HLpXczGoD+v1Vc=; b=w6a2Le7411PlZc47ukf/lNrWYBsIfR8a67l/rnpzfLfXCU2HTbN7zdy8QxM7z6Q1BG3dst HEreuKgJSAkc7vCQ== From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: x86@kernel.org, David Woodhouse <dwmw2@infradead.org>, Andrew Cooper <andrew.cooper3@citrix.com>, Brian Gerst <brgerst@gmail.com>, Arjan van de Veen <arjan@linux.intel.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul McKenney <paulmck@kernel.org>, Tom Lendacky <thomas.lendacky@amd.com>, Sean Christopherson <seanjc@google.com>, Oleksandr Natalenko <oleksandr@natalenko.name>, Paul Menzel <pmenzel@molgen.mpg.de>, "Guilherme G. Piccoli" <gpiccoli@igalia.com>, Piotr Gorski <lucjan.lucjanov@gmail.com>, Usama Arif <usama.arif@bytedance.com>, Juergen Gross <jgross@suse.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, xen-devel@lists.xenproject.org, Russell King <linux@armlinux.org.uk>, Arnd Bergmann <arnd@arndb.de>, linux-arm-kernel@lists.infradead.org, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Guo Ren <guoren@kernel.org>, linux-csky@vger.kernel.org, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, linux-mips@vger.kernel.org, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, linux-riscv@lists.infradead.org, Mark Rutland <mark.rutland@arm.com>, Sabin Rapan <sabrapan@amazon.com>, "Michael Kelley (LINUX)" <mikelley@microsoft.com> Subject: [patch v3 17/36] x86/xen/hvm: Get rid of DEAD_FROZEN handling References: <20230508181633.089804905@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Mon, 8 May 2023 21:43:54 +0200 (CEST) |
Series |
cpu/hotplug, x86: Reworked parallel CPU bringup
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expand
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--- a/arch/x86/xen/enlighten_hvm.c +++ b/arch/x86/xen/enlighten_hvm.c @@ -161,13 +161,12 @@ static int xen_cpu_up_prepare_hvm(unsign int rc = 0; /* - * This can happen if CPU was offlined earlier and - * offlining timed out in common_cpu_die(). + * If a CPU was offlined earlier and offlining timed out then the + * lock mechanism is still initialized. Uninit it unconditionally + * as it's safe to call even if already uninited. Interrupts and + * timer have already been handled in xen_cpu_dead_hvm(). */ - if (cpu_report_state(cpu) == CPU_DEAD_FROZEN) { - xen_smp_intr_free(cpu); - xen_uninit_lock_cpu(cpu); - } + xen_uninit_lock_cpu(cpu); if (cpu_acpi_id(cpu) != U32_MAX) per_cpu(xen_vcpu_id, cpu) = cpu_acpi_id(cpu);