Message ID | 20230504185938.232336513@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State | Superseded |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 C7335C7EE21 for <xen-devel@archiver.kernel.org>; Thu, 4 May 2023 19:09:26 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.529922.824982 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pueKB-0005HU-Nw; Thu, 04 May 2023 19:09:07 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 529922.824982; Thu, 04 May 2023 19:09:07 +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 1pueKB-0005HN-LL; Thu, 04 May 2023 19:09:07 +0000 Received: by outflank-mailman (input) for mailman id 529922; Thu, 04 May 2023 19:09:05 +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=srgM=AZ=linutronix.de=tglx@srs-se1.protection.inumbo.net>) id 1pueED-00042k-9y for xen-devel@lists.xenproject.org; Thu, 04 May 2023 19:02:57 +0000 Received: from galois.linutronix.de (galois.linutronix.de [193.142.43.55]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 47244339-eaae-11ed-8611-37d641c3527e; Thu, 04 May 2023 21:02:55 +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: 47244339-eaae-11ed-8611-37d641c3527e Message-ID: <20230504185938.232336513@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1683226975; 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=PaGuo8GAZ65ZbtTn7wzwCB2xmjp/8CcdVtBqqK3zJyY=; b=WBrmRYfVh8Hf7VAtaZM+773NG/l2NaZEQY2PbsMWpwgijTHlkaPZNZwTTqZqSePaJs28Tp huH2qX95r4oDUOSFSd9zA+6+RZv5lgr0xa0QdgDkEncw9LVXBvKPVIlHpBCwardNQlPmIT cajVqbzngFG+dnpn2I0UeA+RYWcEBwo1QkYYSYABAtHiWYiay4DXWTSDKMd3/FerfS7z8b xwX6otdMILDZ1YbCULvPsUARGQzswNTUUkZzB3iKqcysyV9JxG2dUxCWqjPi7FUYFLn/3T jkRxQ4LmxpZMkrdtxeZw1NAb25wiC+Tx1duuJ885D0xawxhq7zhP9DRXxAmkFA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1683226975; 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=PaGuo8GAZ65ZbtTn7wzwCB2xmjp/8CcdVtBqqK3zJyY=; b=G0tsDBn5b6jENP+Wz6pMSYtlj20+hRg4V3sQlU3KTcd+8sMa78JVCQNTfSLn2dU5TfjS5i VD5uznhB/0z5zkAQ== 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 V2 35/38] x86/apic: Save the APIC virtual base address References: <20230504185733.126511787@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Thu, 4 May 2023 21:02:55 +0200 (CEST) |
Series |
cpu/hotplug, x86: Reworked parallel CPU bringup
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expand
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--- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -196,6 +196,7 @@ extern void nmi_selftest(void); #endif extern unsigned int smpboot_control; +extern unsigned long apic_mmio_base; #endif /* !__ASSEMBLY__ */ --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -101,6 +101,9 @@ static int apic_extnmi __ro_after_init = */ static bool virt_ext_dest_id __ro_after_init; +/* For parallel bootup. */ +unsigned long apic_mmio_base __ro_after_init; + /* * Map cpu index to physical APIC ID */ @@ -2163,6 +2166,7 @@ void __init register_lapic_address(unsig if (!x2apic_mode) { set_fixmap_nocache(FIX_APIC_BASE, address); + apic_mmio_base = APIC_BASE; apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n", APIC_BASE, address); }