Message ID | 20230414232311.316352541@linutronix.de (mailing list archive) |
---|---|
State | Superseded |
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 DBDA5C77B71 for <xen-devel@archiver.kernel.org>; Fri, 14 Apr 2023 23:49:45 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.521347.810030 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pnTAe-0008RI-3H; Fri, 14 Apr 2023 23:49:36 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 521347.810030; Fri, 14 Apr 2023 23:49:36 +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 1pnTAd-0008Qb-So; Fri, 14 Apr 2023 23:49:35 +0000 Received: by outflank-mailman (input) for mailman id 521347; Fri, 14 Apr 2023 23:49:33 +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 <SRS0=ZCOw=AF=linutronix.de=tglx@srs-se1.protection.inumbo.net>) id 1pnT6N-0000zb-9T for xen-devel@lists.xenproject.org; Fri, 14 Apr 2023 23:45:11 +0000 Received: from galois.linutronix.de (galois.linutronix.de [193.142.43.55]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 6448a52f-db1e-11ed-8611-37d641c3527e; Sat, 15 Apr 2023 01:45:09 +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: 6448a52f-db1e-11ed-8611-37d641c3527e Message-ID: <20230414232311.316352541@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1681515909; 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=2PTnDdSuwes/9NjD8Pm7hXlACOxFTN9vJCNjWOfgGXM=; b=Jh6ZM0Us9GGh285BMnb5fEm77rslh++J6j/QuRkHBnu0IJ3u2WPmnGe/3gdgkhs+Itn6YC EYm2JHM+HCoiKXud+mnLR3pzE3sn62xS6OTtxoSRYTybybUo7HLhqrcnKqV1RwxPAi5wc5 OBp150tG8AHyoMw6+86zMyjFChURpnILiUkhTuUlpHCRtOIbCa3VMT62a8kcqkB8R+gKQ4 U9tfXpB5IVu1MhpvFCVN68arP6yea+vniJ2RVD3n3fNQwQKszlDZIcpnpbeZf4M7nBLa8W ZFeGomntJTFI5LAn96fL2tniH8jRiNy2rM7ZxO27HO46gpoe/qq365pH/j/4pA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1681515909; 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=2PTnDdSuwes/9NjD8Pm7hXlACOxFTN9vJCNjWOfgGXM=; b=JDEmTRQRnlWI2RxVIaPHzb6Y3x+BSeHE+/1j/fasD5aAeXT8ZfKeZ96xHuB6wXG5qxyGWZ eqmeypWBVFC7DyAA== From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: x86@kernel.org, David Woodhouse <dwmw@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>, David Woodhouse <dwmw@amazon.co.uk>, 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> Subject: [patch 34/37] x86/cpu/amd; Invoke detect_extended_topology_early() on boot CPU References: <20230414225551.858160935@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Sat, 15 Apr 2023 01:45:08 +0200 (CEST) |
Series |
cpu/hotplug, x86: Reworked parallel CPU bringup
|
expand
|
--- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -692,6 +692,8 @@ static void early_init_amd(struct cpuinf } } + detect_extended_topology_early(c); + if (cpu_has(c, X86_FEATURE_TOPOEXT)) smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1; }
The early detection stores the extended topology leaf number which is required for parallel hotplug. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/x86/kernel/cpu/amd.c | 2 ++ 1 file changed, 2 insertions(+)