From patchwork Wed Jul 29 22:06:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 277279 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=-12.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 A27DAC433E0 for ; Wed, 29 Jul 2020 22:12:19 +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 6DF592075D for ; Wed, 29 Jul 2020 22:12:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=irrelevant.dk header.i=@irrelevant.dk header.b="RwsAA6SN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6DF592075D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34778 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k0uJ8-0007bz-NL for qemu-devel@archiver.kernel.org; Wed, 29 Jul 2020 18:12:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53910) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k0uED-0007i2-4u; Wed, 29 Jul 2020 18:07:13 -0400 Received: from charlie.dont.surf ([128.199.63.193]:34750) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k0uE9-00005S-Sx; Wed, 29 Jul 2020 18:07:12 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id 73821BFCD9; Wed, 29 Jul 2020 22:06:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=irrelevant.dk; s=default; t=1596060406; bh=qTyhklrZu762Q/Is/xOIluIjK97MW6jku9v2Mt0zX/E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RwsAA6SNyRMV/o99xKq7rXffI7DBHPfcLUQDc8vR0kld3JnELcfph/rwGsQXKk9if UOyxOh6T04N/+17KP7snPRsH3oikXkgAIxI+LthsWKT3n1EH5Jfix1JFIGl+sxzxu2 IMgocN9HeS/0xWzlrqk63S/7gWA+69ms6zYoFoKb9xASkwxAEek96wG6x2zEd/SI69 anw65M/9qhjqz0HcmEpTA5NWJrlC3YYpWVH4c3mkHGWs6F5cVHNIq8JIKdR1X6PcRW 4OokKiuOZ/qyCM3BY5NZe7HOXCKlVORDaXsPvqzi78PcQo4cc/wtM7Oi9NNA083qk8 ig4b9k1GBbyWA== From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v2 09/16] hw/block/nvme: verify validity of prp lists in the cmb Date: Thu, 30 Jul 2020 00:06:31 +0200 Message-Id: <20200729220638.344477-10-its@irrelevant.dk> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200729220638.344477-1-its@irrelevant.dk> References: <20200729220638.344477-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=128.199.63.193; envelope-from=its@irrelevant.dk; helo=charlie.dont.surf X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/29 14:23:15 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Fam Zheng , Kevin Wolf , qemu-block@nongnu.org, Klaus Jensen , Maxim Levitsky , Klaus Jensen , Andrzej Jakowski , Minwoo Im , Keith Busch , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen Before this patch the device already supported PRP lists in the CMB, but it did not check for the validity of it nor announced the support in the Identify Controller data structure LISTS field. If some of the PRPs in a PRP list are in the CMB, then ALL entries must be there. This patch makes sure that requirement is verified as well as properly announcing support for PRP lists in the CMB. Signed-off-by: Klaus Jensen Reviewed-by: Maxim Levitsky Reviewed-by: Minwoo Im --- hw/block/nvme.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 198a26890e0c..45e4060d52d9 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -273,6 +273,7 @@ static uint16_t nvme_map_prp(QEMUSGList *qsg, QEMUIOVector *iov, uint64_t prp1, trans_len = MIN(len, trans_len); int num_prps = (len >> n->page_bits) + 1; uint16_t status; + bool prp_list_in_cmb = false; trace_pci_nvme_map_prp(trans_len, len, prp1, prp2, num_prps); @@ -299,11 +300,16 @@ static uint16_t nvme_map_prp(QEMUSGList *qsg, QEMUIOVector *iov, uint64_t prp1, status = NVME_INVALID_FIELD | NVME_DNR; goto unmap; } + if (len > n->page_size) { uint64_t prp_list[n->max_prp_ents]; uint32_t nents, prp_trans; int i = 0; + if (nvme_addr_is_cmb(n, prp2)) { + prp_list_in_cmb = true; + } + nents = (len + n->page_size - 1) >> n->page_bits; prp_trans = MIN(n->max_prp_ents, nents) * sizeof(uint64_t); nvme_addr_read(n, prp2, (void *)prp_list, prp_trans); @@ -317,6 +323,11 @@ static uint16_t nvme_map_prp(QEMUSGList *qsg, QEMUIOVector *iov, uint64_t prp1, goto unmap; } + if (prp_list_in_cmb != nvme_addr_is_cmb(n, prp_ent)) { + status = NVME_INVALID_USE_OF_CMB | NVME_DNR; + goto unmap; + } + i = 0; nents = (len + n->page_size - 1) >> n->page_bits; prp_trans = MIN(n->max_prp_ents, nents) * sizeof(uint64_t); @@ -336,6 +347,7 @@ static uint16_t nvme_map_prp(QEMUSGList *qsg, QEMUIOVector *iov, uint64_t prp1, if (status) { goto unmap; } + len -= trans_len; i++; } @@ -2153,7 +2165,7 @@ static void nvme_init_cmb(NvmeCtrl *n, PCIDevice *pci_dev) NVME_CMBSZ_SET_SQS(n->bar.cmbsz, 1); NVME_CMBSZ_SET_CQS(n->bar.cmbsz, 0); - NVME_CMBSZ_SET_LISTS(n->bar.cmbsz, 0); + NVME_CMBSZ_SET_LISTS(n->bar.cmbsz, 1); NVME_CMBSZ_SET_RDS(n->bar.cmbsz, 1); NVME_CMBSZ_SET_WDS(n->bar.cmbsz, 1); NVME_CMBSZ_SET_SZU(n->bar.cmbsz, 2); /* MBs */