From mboxrd@z Thu Jan 1 00:00:00 1970 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 7891AC433B4 for ; Wed, 21 Apr 2021 15:24:10 +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 1C98C61449 for ; Wed, 21 Apr 2021 15:24:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C98C61449 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.114839.218944 (Exim 4.92) (envelope-from ) id 1lZEhu-0003W3-4Z; Wed, 21 Apr 2021 15:24:02 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 114839.218944; Wed, 21 Apr 2021 15:24:02 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lZEhu-0003Vw-1T; Wed, 21 Apr 2021 15:24:02 +0000 Received: by outflank-mailman (input) for mailman id 114839; Wed, 21 Apr 2021 15:24:01 +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 1lZEht-0003Vo-5U for xen-devel@lists.xenproject.org; Wed, 21 Apr 2021 15:24:01 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 6097ea9a-8cde-4a89-9ea3-805289eac83e; Wed, 21 Apr 2021 15:24:00 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 4E0C3B4F4; Wed, 21 Apr 2021 15:23:59 +0000 (UTC) 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: 6097ea9a-8cde-4a89-9ea3-805289eac83e 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=1619018639; 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: in-reply-to:in-reply-to:references:references; bh=O55BFAVHl1k2hSCRXuwD9sObx1sD6Qj4tI/HRCtDbp8=; b=JNCPmm5gGZxnc0acgTiALBt2VkEkSS9OSLzElOJS3zJ66/9CjrINtQv0mzA+GxG39R1YOW iqhuVEXMHMDWsdPzM/YsSGlg8m/Lik6L30A4XuM7X3rAeXGSPZN+nplWB35sQ4ofVPZHIN mfmKlU3dK1sk+sv7BFtYZFg0+deVPgU= Subject: Ping: [PATCH v5 0/6] evtchn: (not so) recent XSAs follow-on From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , George Dunlap , Ian Jackson , Julien Grall , Wei Liu , Stefano Stabellini References: <306e62e8-9070-2db9-c959-858465c50c1d@suse.com> Message-ID: Date: Wed, 21 Apr 2021 17:23:58 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <306e62e8-9070-2db9-c959-858465c50c1d@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit On 27.01.2021 09:13, Jan Beulich wrote: > These are grouped into a series largely because of their origin, > not so much because there are (heavy) dependencies among them. > The main change from v4 is the dropping of the two patches trying > to do away with the double event lock acquires in interdomain > channel handling. See also the individual patches. > > 1: use per-channel lock where possible > 2: convert domain event lock to an r/w one > 3: slightly defer lock acquire where possible > 4: add helper for port_is_valid() + evtchn_from_port() > 5: type adjustments > 6: drop acquiring of per-channel lock from send_guest_{global,vcpu}_virq() Only patch 4 here has got an ack so far - may I ask for clear feedback as to at least some of these being acceptable (I can see the last one being controversial, and if this was the only one left I probably wouldn't even ping, despite thinking that it helps reduce unecessary overhead). Jan