From patchwork Mon Jul 31 06:41:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Xin3" X-Patchwork-Id: 13333793 Return-Path: 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 0B180C001DF for ; Mon, 31 Jul 2023 07:10:28 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.572719.896738 (Exim 4.92) (envelope-from ) id 1qQN2r-0001is-5I; Mon, 31 Jul 2023 07:10:21 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 572719.896738; Mon, 31 Jul 2023 07:10:21 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qQN2r-0001ij-1R; Mon, 31 Jul 2023 07:10:21 +0000 Received: by outflank-mailman (input) for mailman id 572719; Mon, 31 Jul 2023 07:10:19 +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 ) id 1qQN2p-00082R-IE for xen-devel@lists.xenproject.org; Mon, 31 Jul 2023 07:10:19 +0000 Received: from mgamail.intel.com (unknown [134.134.136.31]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 4d45415c-2f71-11ee-b254-6b7b168915f2; Mon, 31 Jul 2023 09:10:18 +0200 (CEST) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Jul 2023 00:10:12 -0700 Received: from unknown (HELO fred..) ([172.25.112.68]) by fmsmga004.fm.intel.com with ESMTP; 31 Jul 2023 00:10:07 -0700 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 4d45415c-2f71-11ee-b254-6b7b168915f2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1690787418; x=1722323418; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QJo+FdezOu/7r5CtwRnG6EayDGJs/agjxSi0oClRDik=; b=LfoXMB8r+hnUS/QoVdG9KsBj24ApZYT41lva79JWYPpJFqsbH3//e7Ri ct1Q3BCelxp8i786I4ILda5ygS5ta3um0Nm5P0MxcgPZymcnmBffnMOR6 al9dE5Epiv4qK8CYURR2OcnTZStzSxLzGjx5Jl0JlMI4/MgTXPwHaQm84 JtifLBFPjG4JhVawC1ikNAng46K5g6/Uiu8Eq8mRa/JejWJHo1gY2sFLa 4f43jcoluu03A58dTNcjWyMGMqI8h0f6GO+SgTmC/M/mX6+X6oqbARyvc 5Rhbr8zaFDQmjl/p30frqFvSsg3EvoSDB5RuQwQ9rXksOsugaLWvly4Wd Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10787"; a="432750104" X-IronPort-AV: E=Sophos;i="6.01,244,1684825200"; d="scan'208";a="432750104" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10787"; a="798157781" X-IronPort-AV: E=Sophos;i="6.01,244,1684825200"; d="scan'208";a="798157781" From: Xin Li 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: Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Andy Lutomirski , Oleg Nesterov , Tony Luck , "K . Y . Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , Sean Christopherson , Peter Zijlstra , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Josh Poimboeuf , "Paul E . McKenney" , Catalin Marinas , Randy Dunlap , Steven Rostedt , Kim Phillips , Xin Li , Hyeonggon Yoo <42.hyeyoo@gmail.com>, "Liam R . Howlett" , Sebastian Reichel , "Kirill A . Shutemov" , Suren Baghdasaryan , Pawan Gupta , Jiaxi Chen , Babu Moger , Jim Mattson , Sandipan Das , Lai Jiangshan , Hans de Goede , Reinette Chatre , Daniel Sneddon , Breno Leitao , Nikunj A Dadhania , Brian Gerst , Sami Tolvanen , Alexander Potapenko , Andrew Morton , Arnd Bergmann , "Eric W . Biederman" , Kees Cook , Masami Hiramatsu , Masahiro Yamada , Ze Gao , Fei Li , Conghui , Ashok Raj , "Jason A . Donenfeld" , Mark Rutland , Jacob Pan , Jiapeng Chong , Jane Malalane , David Woodhouse , Boris Ostrovsky , Arnaldo Carvalho de Melo , Yantengsi , Christophe Leroy , Sathvika Vasireddy Subject: [PATCH v9 31/36] x86/traps: Export external_interrupt() for handling IRQ in IRQ induced VM exits Date: Sun, 30 Jul 2023 23:41:28 -0700 Message-Id: <20230731064133.3881-2-xin3.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230731064133.3881-1-xin3.li@intel.com> References: <20230731064133.3881-1-xin3.li@intel.com> MIME-Version: 1.0 Export external_interrupt() for handling IRQ in IRQ induced VM exits. Tested-by: Shan Kang Signed-off-by: Xin Li --- arch/x86/kernel/traps.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 90fdfcccee7a..6143ad56008e 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -1560,6 +1560,11 @@ int external_interrupt(struct pt_regs *regs) return 0; } +#if IS_ENABLED(CONFIG_KVM_INTEL) +/* For KVM VMX to handle IRQs in IRQ induced VM exits. */ +EXPORT_SYMBOL_GPL(external_interrupt); +#endif + #endif /* CONFIG_X86_64 */ void __init trap_init(void)