From patchwork Fri Oct 16 08:53:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 11841057 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E0CF661C for ; Fri, 16 Oct 2020 08:55:04 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A3B0F20663 for ; Fri, 16 Oct 2020 08:55:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="Z/J5gRoU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A3B0F20663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.7830.20617 (Exim 4.92) (envelope-from ) id 1kTLUq-0002Da-Ci; Fri, 16 Oct 2020 08:53:56 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 7830.20617; Fri, 16 Oct 2020 08:53:56 +0000 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" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kTLUq-0002DP-6w; Fri, 16 Oct 2020 08:53:56 +0000 Received: by outflank-mailman (input) for mailman id 7830; Fri, 16 Oct 2020 08:53:54 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kTLUo-0002Cw-Tc for xen-devel@lists.xenproject.org; Fri, 16 Oct 2020 08:53:54 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 472e706b-4829-411a-9c0b-844cf330e8d5; Fri, 16 Oct 2020 08:53:53 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 6DA3EADE4; Fri, 16 Oct 2020 08:53:52 +0000 (UTC) Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kTLUo-0002Cw-Tc for xen-devel@lists.xenproject.org; Fri, 16 Oct 2020 08:53:54 +0000 X-Inumbo-ID: 472e706b-4829-411a-9c0b-844cf330e8d5 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 472e706b-4829-411a-9c0b-844cf330e8d5; Fri, 16 Oct 2020 08:53:53 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1602838432; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=uflXsgCH4arUjU1zZLQaRsAU0C5CIOEyLH+JEYOYK6k=; b=Z/J5gRoUPV+PO0kMiJFFsSN9ei68GzUGczE6Ikc5e3ChHnTrra5NkAeHQp1r55ug+TJYZd MAmJZq3AcX+QjnHZ11ETXP0nh7i9IPnYraWD/PmYFuG6PYprTELD2AxYmX6ICkjGqBU8rh TdCsLxpUNxhcaRqyXLGsyEB/DcjHxRk= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 6DA3EADE4; Fri, 16 Oct 2020 08:53:52 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Cc: Juergen Gross , Jan Beulich , Andrew Cooper , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Wei Liu Subject: [PATCH v3 0/3] xen/x86: implement NMI continuation Date: Fri, 16 Oct 2020 10:53:47 +0200 Message-Id: <20201016085350.10233-1-jgross@suse.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Move sending of a virq event for oprofile to the local vcpu from NMI to normal interrupt context. This has been tested with a small test patch using the continuation framework of patch 1 for all NMIs and doing a print to console in the continuation handler. Version 1 of this small series was sent to the security list before. Changes in V3: - switched to self-IPI instead of softirq - added patch 3 Juergen Gross (3): xen/x86: add nmi continuation framework xen/oprofile: use set_nmi_continuation() for sending virq to guest xen/x86: issue pci_serr error message via NMI continuation xen/arch/x86/apic.c | 13 +++++-- xen/arch/x86/oprofile/nmi_int.c | 9 ++++- xen/arch/x86/traps.c | 61 +++++++++++++++++++++++++++++---- xen/include/asm-x86/nmi.h | 13 ++++++- xen/include/asm-x86/softirq.h | 5 ++- 5 files changed, 87 insertions(+), 14 deletions(-)