From patchwork Mon Nov 23 13:26:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 11925197 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E94FAC64E7B for ; Mon, 23 Nov 2020 13:27:26 +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 7BFA32080A for ; Mon, 23 Nov 2020 13:27:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="oOFoGa1/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7BFA32080A Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine 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.34274.65185 (Exim 4.92) (envelope-from ) id 1khBrv-0007PJ-0q; Mon, 23 Nov 2020 13:26:59 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 34274.65185; Mon, 23 Nov 2020 13:26:58 +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 1khBru-0007PC-U5; Mon, 23 Nov 2020 13:26:58 +0000 Received: by outflank-mailman (input) for mailman id 34274; Mon, 23 Nov 2020 13:26:57 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khBrt-0007P7-Jx for xen-devel@lists.xenproject.org; Mon, 23 Nov 2020 13:26:57 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id fe2199b3-d489-481a-909a-c1b57fabc7f1; Mon, 23 Nov 2020 13:26:56 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id E4179AC2E; Mon, 23 Nov 2020 13:26:55 +0000 (UTC) Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khBrt-0007P7-Jx for xen-devel@lists.xenproject.org; Mon, 23 Nov 2020 13:26:57 +0000 X-Inumbo-ID: fe2199b3-d489-481a-909a-c1b57fabc7f1 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id fe2199b3-d489-481a-909a-c1b57fabc7f1; Mon, 23 Nov 2020 13:26:56 +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=1606138016; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ermRl1yZ3mVSGF+O9FQRzJSxMX/19Is0gCXXBe7D0qQ=; b=oOFoGa1/XjQI1xXTaviyBRs30PTssMo2ZlRzH3gkpE38wyvAJI72E18R0x8x/2EuYSBU7j B7xvv3gZ+K4VRwYVo4G/2o440HlPqH/Q+1lrnxqNieA1eBQclE3BMefExOAePN3TRj7lxx jJcj4YvhM0PXbU1KJfcqZrzTzm9z3iM= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id E4179AC2E; Mon, 23 Nov 2020 13:26:55 +0000 (UTC) From: Jan Beulich Subject: [PATCH v3 0/5] evtchn: (not so) recent XSAs follow-on To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , George Dunlap , Ian Jackson , Julien Grall , Wei Liu , Stefano Stabellini Message-ID: <9d7a052a-6222-80ff-cbf1-612d4ca50c2a@suse.com> Date: Mon, 23 Nov 2020 14:26:55 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 Content-Language: en-US These are grouped into a series largely because of their origin, not so much because there are heavy dependencies among them. Compared to v2, there's a new patch resulting from review feedback, and the last patch should be fully usable now. See also the individual patches. 1: drop acquiring of per-channel lock from send_guest_{global,vcpu}_virq() 2: avoid access tearing for ->virq_to_evtchn[] accesses 3: convert vIRQ lock to an r/w one 4: convert domain event lock to an r/w one 5: don't call Xen consumer callback with per-channel lock held Jan