Message ID | 20230914044805.301390-8-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State | Superseded |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 6B4D2EDE987 for <xen-devel@archiver.kernel.org>; Thu, 14 Sep 2023 05:19:46 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.601775.937982 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1qgel7-0002LA-QV; Thu, 14 Sep 2023 05:19:21 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 601775.937982; Thu, 14 Sep 2023 05:19:21 +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 1qgel7-0002Je-Lq; Thu, 14 Sep 2023 05:19:21 +0000 Received: by outflank-mailman (input) for mailman id 601775; Thu, 14 Sep 2023 05:19:19 +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 1qgel5-0001X7-O3 for xen-devel@lists.xenproject.org; Thu, 14 Sep 2023 05:19:19 +0000 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 4137d9eb-52be-11ee-8787-cb3800f73035; Thu, 14 Sep 2023 07:19:18 +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 22:17:33 -0700 Received: from unknown (HELO fred..) ([172.25.112.68]) by orsmga001.jf.intel.com with ESMTP; 13 Sep 2023 22:17:32 -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: 4137d9eb-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=1694668759; x=1726204759; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AT3+uEfHqtt3VE+RUnzzRXk1GicJbCzWRed9aBLhDUA=; b=XPDghk5I4x97LdKu8z0HkNRPqkzJW8WqcRAyRfsxao+XO+59X+sr3fpn eH/zQ+ESAVsgubQysZhibsnyosmFFRo/baPgtGUCinaahrlITDHbsIWRB sc61yyWB7PcFaE8/dDRRfy2Lmwa3BgsoQLUclSdOIw8XpyHEuEx8y+Xvr yqbUI53ymZgs1WouLLg9RpT09aj+MvTLKefA5kwpY9lO3anY0f/FcGXk0 iHtzdzxEQ2MUydi8k9GpeqVBeLxW9ZmbyWUuBkdO3qAa7+eUy7J71eM1A OECAzgdo0lL5ymNpSuHngVC3pTz6XPJN9ZF2DkRCGFbpf4VRqwQNGXF8b w==; X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="382661156" X-IronPort-AV: E=Sophos;i="6.02,145,1688454000"; d="scan'208";a="382661156" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="779488756" X-IronPort-AV: E=Sophos;i="6.02,145,1688454000"; d="scan'208";a="779488756" 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 07/38] x86/fred: Add Kconfig option for FRED (CONFIG_X86_FRED) Date: Wed, 13 Sep 2023 21:47:34 -0700 Message-Id: <20230914044805.301390-8-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/Kconfig b/arch/x86/Kconfig index 3b3594f96330..cae126417427 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -496,6 +496,15 @@ config X86_CPU_RESCTRL Say N if unsure. +config X86_FRED + bool "Flexible Return and Event Delivery" + depends on X86_64 + help + When enabled, try to use Flexible Return and Event Delivery + instead of the legacy SYSCALL/SYSENTER/IDT architecture for + ring transitions and exception/interrupt handling if the + system supports. + if X86_32 config X86_BIGSMP bool "Support for big SMP systems with more than 8 CPUs"