From patchwork Tue Aug 1 08:35:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Xin3" X-Patchwork-Id: 13335953 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 76C29C07E8B for ; Tue, 1 Aug 2023 09:04:46 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.573864.899022 (Exim 4.92) (envelope-from ) id 1qQlJ1-0008PV-Rv; Tue, 01 Aug 2023 09:04:39 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 573864.899022; Tue, 01 Aug 2023 09:04:39 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qQlJ1-0008OW-Nn; Tue, 01 Aug 2023 09:04:39 +0000 Received: by outflank-mailman (input) for mailman id 573864; Tue, 01 Aug 2023 09:04:38 +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 ) id 1qQlJ0-0007sM-Ak for xen-devel@lists.xenproject.org; Tue, 01 Aug 2023 09:04:38 +0000 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 6df44d94-304a-11ee-8613-37d641c3527e; Tue, 01 Aug 2023 11:04:36 +0200 (CEST) Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Aug 2023 02:04:34 -0700 Received: from unknown (HELO fred..) ([172.25.112.68]) by orsmga007.jf.intel.com with ESMTP; 01 Aug 2023 02:04:32 -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: 6df44d94-304a-11ee-8613-37d641c3527e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1690880676; x=1722416676; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QJo+FdezOu/7r5CtwRnG6EayDGJs/agjxSi0oClRDik=; b=LJ3fyLruDPs5uYPMxpUokpiz5GD2N0VvPWAkxd1zkcieDy89uuHZ5Utn G1SUgXRYaPZxQkByR4jv6sGpiMJOf14LZJRm8yhLmp9PX+ucPWLx/sr/A 8MkBxGSSdXQDeTOGpiMbSNRqawUBBLLbhOaCo1KAQi9y6GzCphEnIZ6zl WbHqjEyncD8mqNGs48Q3K3paoWSLYD0x2xzX31wXcWXQY7c2xz8f3mnoV KpHKWmaKcCKnk2kb4fX8FQt6Gi/o9u0t+jmBj/a4B8vWgyHDHtyHaD4SX 8kjOojzXY64Ro0VJH4Edyz5EywoqQ8LOf/xSBxeR2a+DZOMmvKo8htMK4 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10788"; a="366713612" X-IronPort-AV: E=Sophos;i="6.01,246,1684825200"; d="scan'208";a="366713612" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10788"; a="722420738" X-IronPort-AV: E=Sophos;i="6.01,246,1684825200"; d="scan'208";a="722420738" 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 , 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 RESEND v9 31/36] x86/traps: Export external_interrupt() for handling IRQ in IRQ induced VM exits Date: Tue, 1 Aug 2023 01:35:48 -0700 Message-Id: <20230801083553.8468-5-xin3.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230801083553.8468-1-xin3.li@intel.com> References: <20230801083553.8468-1-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)