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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 5E10BC35669 for ; Fri, 21 Feb 2020 21:24:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 32839206EF for ; Fri, 21 Feb 2020 21:24:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32839206EF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:36332 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j5FmR-0004uP-AW for qemu-devel@archiver.kernel.org; Fri, 21 Feb 2020 16:24:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:32864) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j5Fle-0003wK-K0 for qemu-devel@nongnu.org; Fri, 21 Feb 2020 16:23:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j5Fld-00058H-Je for qemu-devel@nongnu.org; Fri, 21 Feb 2020 16:23:26 -0500 Received: from mga07.intel.com ([134.134.136.100]:27825) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j5Flb-00053m-5a; Fri, 21 Feb 2020 16:23:23 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Feb 2020 13:23:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,469,1574150400"; d="scan'208";a="240446392" Received: from unknown (HELO localhost.ch.intel.com) ([10.2.28.117]) by orsmga006.jf.intel.com with ESMTP; 21 Feb 2020 13:23:19 -0800 From: Andrzej Jakowski To: keith.busch@intel.com, kwolf@redhat.com, mreitz@redhat.com Subject: [PATCH v2 0/1] Enable PMR feature from NVMe 1.4 spec to NVMe driver Date: Fri, 21 Feb 2020 14:23:26 -0700 Message-Id: <20200221212327.24616-1-andrzej.jakowski@linux.intel.com> X-Mailer: git-send-email 2.21.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.100 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: haozhong.zhang@intel.com, Andrzej Jakowski , qemu-block@nongnu.org, stefanha@gmail.com, qemu-devel@nongnu.org, dgilbert@redhat.com, yi.z.zhang@linux.intel.com, junyan.he@intel.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Changes since v1: - provided support for Bit 1 from PMRWBM register instead of Bit 0 to ensure improved performance in virtualized environment [1] (Stefan) - added check if pmr size is power of two in size (David) - addressed cross compilation build problems reported by CI environment [1]: https://nvmexpress.org/wp-content/uploads/NVM-Express-1_4-2019.06.10-Ratified.pdf [2]: https://lore.kernel.org/qemu-devel/20200218224811.30050-1-andrzej.jakowski@linux.intel.com/ --- Persistent Memory Region (PMR) is a new optional feature provided in NVMe 1.4 specification. This patch implements initial support for it in NVMe driver. Andrzej Jakowski (1): block/nvme: introduce PMR support from NVMe 1.4 spec hw/block/nvme.c | 165 +++++++++++++++++++++++++++++++++++++++- hw/block/nvme.h | 5 ++ hw/block/trace-events | 5 ++ include/block/nvme.h | 172 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 346 insertions(+), 1 deletion(-) -- 2.21.1