From patchwork Thu Nov 10 06:15:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Xin3" X-Patchwork-Id: 13038333 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 5A1DDC4332F for ; Thu, 10 Nov 2022 06:39:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232360AbiKJGjT (ORCPT ); Thu, 10 Nov 2022 01:39:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232269AbiKJGjR (ORCPT ); Thu, 10 Nov 2022 01:39:17 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D3A113E24; Wed, 9 Nov 2022 22:39:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1668062357; x=1699598357; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1ciQPXm/Sal2C1n/qXvgFnHDwndHE3vgyvJaW4yWXlY=; b=l0ltCQAulhV54S19UBjGh4mql6NT2dh/N6c2O1lPxtmIiz3dIw+GPL3N 6rmEVPAr+hm3tYLFkPzzYeUXV099XgA/hAwNWP7gS/99s6frcrGHRI0pK nRGubC0hEnsLC7fc1IUxUU77WlbEfx8/hNN8o/wvya/bwA4wurx8ZS7xz thtbjTFzUASp3rD0GDxtxZykQ79SlrNeFCOlYNv5r2KkYI7HtBl3T2M2k NpNGHzNz35LQpTQ9ke1kMqOMUKqYuiBtHttYk55OTxTUdJMJnM5EUF8xZ wxABjwBJWpWJU1mgb3nT1IyDqCEoruHCFB3Puvpw0RUZTUk5XFZL0yYQ7 w==; X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="375473999" X-IronPort-AV: E=Sophos;i="5.96,153,1665471600"; d="scan'208";a="375473999" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2022 22:39:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="588057205" X-IronPort-AV: E=Sophos;i="5.96,153,1665471600"; d="scan'208";a="588057205" Received: from unknown (HELO fred..) ([172.25.112.68]) by orsmga003.jf.intel.com with ESMTP; 09 Nov 2022 22:39:15 -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, seanjc@google.com, pbonzini@redhat.com, kevin.tian@intel.com Subject: [RESEND PATCH 1/6] x86/traps: let common_interrupt() handle IRQ_MOVE_CLEANUP_VECTOR Date: Wed, 9 Nov 2022 22:15:40 -0800 Message-Id: <20221110061545.1531-2-xin3.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221110061545.1531-1-xin3.li@intel.com> References: <20221110061545.1531-1-xin3.li@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@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 spurios interrupt handling. Signed-off-by: H. Peter Anvin (Intel) 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();