Message ID | 20230914044805.301390-36-xin3.li@intel.com (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State | Superseded |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 94ED6EDE981 for <xen-devel@archiver.kernel.org>; Thu, 14 Sep 2023 05:32:19 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.601896.938228 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1qgexZ-0003Wd-U2; Thu, 14 Sep 2023 05:32:13 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 601896.938228; Thu, 14 Sep 2023 05:32:13 +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 1qgexZ-0003WW-RE; Thu, 14 Sep 2023 05:32:13 +0000 Received: by outflank-mailman (input) for mailman id 601896; Thu, 14 Sep 2023 05:32:12 +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=IZLI=E6=intel.com=xin3.li@srs-se1.protection.inumbo.net>) id 1qgelV-0001X7-8J for xen-devel@lists.xenproject.org; Thu, 14 Sep 2023 05:19:45 +0000 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 4d307762-52be-11ee-8787-cb3800f73035; Thu, 14 Sep 2023 07:19:39 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2023 22:17:47 -0700 Received: from unknown (HELO fred..) ([172.25.112.68]) by orsmga001.jf.intel.com with ESMTP; 13 Sep 2023 22:17:47 -0700 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: 4d307762-52be-11ee-8787-cb3800f73035 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694668779; x=1726204779; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JgWsUmRzFqYpgTYtV9G6HHx6xStONu7aAX4AcJEGcLI=; b=kWGhNP0X184bOBk7pdGc6glaNLtTR5hvhHGN9MWBUba+V2wbr0o44y1s VnfxzVPaTbvSsPDdHeygJeIn/GKvaKpuCwgapJaI5d2HD1jUW58fZ0hhO dP5uobBvhEpUYwMH+XNQUZEZx+RPb5LM7xZvFIVWqIu9rLdLv/3v2Lces +s1pzWQWljRpkkaUDspfwJ5tn5bfbcMnIDomcr5lYHaDEXTC5fvpfUXgi 2UafnoR0AKMZ3yrW/Lsc5vxxHLE49B+frfoEjpMYpfCT4uyUcl2ihpWPR kgdac7ArVKANwgMNmB2rIARv3CAbrXyMUHSbzNQdMzkvaKgDxI4HFQmMf Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="382661523" X-IronPort-AV: E=Sophos;i="6.02,145,1688454000"; d="scan'208";a="382661523" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="779488844" X-IronPort-AV: E=Sophos;i="6.02,145,1688454000"; d="scan'208";a="779488844" From: Xin Li <xin3.li@intel.com> To: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-hyperv@vger.kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, luto@kernel.org, pbonzini@redhat.com, seanjc@google.com, peterz@infradead.org, jgross@suse.com, ravi.v.shankar@intel.com, mhiramat@kernel.org, andrew.cooper3@citrix.com, jiangshanlai@gmail.com Subject: [PATCH v10 35/38] x86/syscall: Split IDT syscall setup code into idt_syscall_init() Date: Wed, 13 Sep 2023 21:48:02 -0700 Message-Id: <20230914044805.301390-36-xin3.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230914044805.301390-1-xin3.li@intel.com> References: <20230914044805.301390-1-xin3.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
Series |
x86: enable FRED for x86-64
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expand
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diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 42511209469b..d960b7276008 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -2070,10 +2070,8 @@ static void wrmsrl_cstar(unsigned long val) wrmsrl(MSR_CSTAR, val); } -/* May not be marked __init: used by software suspend */ -void syscall_init(void) +static inline void idt_syscall_init(void) { - wrmsr(MSR_STAR, 0, (__USER32_CS << 16) | __KERNEL_CS); wrmsrl(MSR_LSTAR, (unsigned long)entry_SYSCALL_64); #ifdef CONFIG_IA32_EMULATION @@ -2107,6 +2105,15 @@ void syscall_init(void) X86_EFLAGS_AC|X86_EFLAGS_ID); } +/* May not be marked __init: used by software suspend */ +void syscall_init(void) +{ + /* The default user and kernel segments */ + wrmsr(MSR_STAR, 0, (__USER32_CS << 16) | __KERNEL_CS); + + idt_syscall_init(); +} + #else /* CONFIG_X86_64 */ #ifdef CONFIG_STACKPROTECTOR