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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2EA55C64EC4 for ; Tue, 7 Mar 2023 03:05:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230233AbjCGDF1 (ORCPT ); Mon, 6 Mar 2023 22:05:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230176AbjCGDFS (ORCPT ); Mon, 6 Mar 2023 22:05:18 -0500 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A23446098; Mon, 6 Mar 2023 19:05:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678158311; x=1709694311; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CJ5cn83oehVUqkHaIiQkGH139f3gJuf37y85qUnwXYY=; b=HFPC4MWW2gq7b5gLkRRs1I+shOwuNJzvfNIJIPqtqRi3IPPWhZC1veWG 5FaAHrCVv1ed3iy3f9KXqrSR7RrlbytVgX3tQy+IAP96/zsd6Fu8cBnrU hoPougNGzgxrkD+4X/6GrkUupvsd2QyK7A/seqxCrdUh1j2yzdAFtmFHN QKqFyM7duHPfHzFHVU8u5yr0zHCDmUYpHCm0A4T9+Q7TpQJJBiOeQHlnT ShJ0QHJPMLp6uOD/0siPNimbCarzkLMOQi0i03aVVkTzPQ5OvdxixBYdA m5mKg5YyU5ly254/e/LzueaqNS/76Wdhrd37YLithoAYGj2RNX7sm5bva Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="338072313" X-IronPort-AV: E=Sophos;i="5.98,238,1673942400"; d="scan'208";a="338072313" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 19:05:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="676409688" X-IronPort-AV: E=Sophos;i="5.98,238,1673942400"; d="scan'208";a="676409688" Received: from unknown (HELO fred..) ([172.25.112.68]) by orsmga002.jf.intel.com with ESMTP; 06 Mar 2023 19:05:09 -0800 From: Xin Li To: linux-kernel@vger.kernel.org, x86@kernel.org, kvm@vger.kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, peterz@infradead.org, andrew.cooper3@citrix.com, seanjc@google.com, pbonzini@redhat.com, ravi.v.shankar@intel.com Subject: [PATCH v5 01/34] x86/traps: let common_interrupt() handle IRQ_MOVE_CLEANUP_VECTOR Date: Mon, 6 Mar 2023 18:39:13 -0800 Message-Id: <20230307023946.14516-2-xin3.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230307023946.14516-1-xin3.li@intel.com> References: <20230307023946.14516-1-xin3.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "H. Peter Anvin (Intel)" IRQ_MOVE_CLEANUP_VECTOR is the only one of the system IRQ vectors that is *below* FIRST_SYSTEM_VECTOR. It is a slow path, so just push it into common_interrupt() just before the spurious interrupt handling. Signed-off-by: H. Peter Anvin (Intel) Tested-by: Shan Kang Signed-off-by: Xin Li --- arch/x86/kernel/irq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 766ffe3ba313..7e125fff45ab 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -248,6 +248,10 @@ DEFINE_IDTENTRY_IRQ(common_interrupt) desc = __this_cpu_read(vector_irq[vector]); if (likely(!IS_ERR_OR_NULL(desc))) { handle_irq(desc, regs); +#ifdef CONFIG_SMP + } else if (vector == IRQ_MOVE_CLEANUP_VECTOR) { + sysvec_irq_move_cleanup(regs); +#endif } else { ack_APIC_irq(); -- 2.34.1