From patchwork Wed Sep 30 22:04:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keith Busch X-Patchwork-Id: 11810367 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 6E81C92C for ; Wed, 30 Sep 2020 22:08:08 +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 E51A6206CA for ; Wed, 30 Sep 2020 22:08:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Rh4u1lv8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E51A6206CA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:51926 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNkGd-0001ih-3s for patchwork-qemu-devel@patchwork.kernel.org; Wed, 30 Sep 2020 18:08:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56146) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNkD5-0005Pk-Pt; Wed, 30 Sep 2020 18:04:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:50484) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNkD3-0007vb-Rx; Wed, 30 Sep 2020 18:04:27 -0400 Received: from dhcp-10-100-145-180.wdl.wdc.com (unknown [199.255.45.60]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C70222075F; Wed, 30 Sep 2020 22:04:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601503464; bh=6vOfCl0cPNOBq9BzvEp/FihBm827xY1zLVzTTbpSz8g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Rh4u1lv8kPz86Y3Y2YZ9k9QfT36E/lJBHKLlrhvoHwTnGtkrh3s+lBuOIjI11smv4 xv6bqMGpiTDW5PLGRVL/ef8hKn3flp7k+okOk6HLpQwUY3V78DlcXsSYhtrrgW0dsC AKOvooh1XQ4WGkHcsuKTvIDpT2/KKa/MQMYbbSfk= From: Keith Busch To: qemu-block@nongnu.org, qemu-devel@nongnu.org, Klaus Jensen Subject: [PATCH 4/9] hw/block/nvme: validate command set selected Date: Wed, 30 Sep 2020 15:04:09 -0700 Message-Id: <20200930220414.562527-5-kbusch@kernel.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200930220414.562527-1-kbusch@kernel.org> References: <20200930220414.562527-1-kbusch@kernel.org> MIME-Version: 1.0 Received-SPF: pass client-ip=198.145.29.99; envelope-from=kbusch@kernel.org; helo=mail.kernel.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/30 18:04:21 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -75 X-Spam_score: -7.6 X-Spam_bar: ------- X-Spam_report: (-7.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.469, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-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: Dmitry Fomichev , Niklas Cassel , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Keith Busch , Kevin Wolf Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Fail to start the controller if the user requests a command set that the controller does not support. Signed-off-by: Keith Busch Reviewed-by: Klaus Jensen --- hw/block/nvme.c | 6 +++++- hw/block/trace-events | 1 + include/block/nvme.h | 4 ++++ 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 41389b2b09..6c582e6874 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -2049,6 +2049,10 @@ static int nvme_start_ctrl(NvmeCtrl *n) trace_pci_nvme_err_startfail_acq_misaligned(n->bar.acq); return -1; } + if (unlikely(!(NVME_CAP_CSS(n->bar.cap) & (1 << NVME_CC_CSS(n->bar.cc))))) { + trace_pci_nvme_err_startfail_css(NVME_CC_CSS(n->bar.cc)); + return -1; + } if (unlikely(NVME_CC_MPS(n->bar.cc) < NVME_CAP_MPSMIN(n->bar.cap))) { trace_pci_nvme_err_startfail_page_too_small( @@ -2750,7 +2754,7 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev) NVME_CAP_SET_MQES(n->bar.cap, 0x7ff); NVME_CAP_SET_CQR(n->bar.cap, 1); NVME_CAP_SET_TO(n->bar.cap, 0xf); - NVME_CAP_SET_CSS(n->bar.cap, 1); + NVME_CAP_SET_CSS(n->bar.cap, NVME_CAP_CSS_NVM); NVME_CAP_SET_MPSMAX(n->bar.cap, 4); n->bar.vs = NVME_SPEC_VER; diff --git a/hw/block/trace-events b/hw/block/trace-events index 446cca08e9..7720e1b4d9 100644 --- a/hw/block/trace-events +++ b/hw/block/trace-events @@ -133,6 +133,7 @@ pci_nvme_err_startfail_cqent_too_small(uint8_t log2ps, uint8_t maxlog2ps) "nvme_ pci_nvme_err_startfail_cqent_too_large(uint8_t log2ps, uint8_t maxlog2ps) "nvme_start_ctrl failed because the completion queue entry size is too large: log2size=%u, max=%u" pci_nvme_err_startfail_sqent_too_small(uint8_t log2ps, uint8_t maxlog2ps) "nvme_start_ctrl failed because the submission queue entry size is too small: log2size=%u, min=%u" pci_nvme_err_startfail_sqent_too_large(uint8_t log2ps, uint8_t maxlog2ps) "nvme_start_ctrl failed because the submission queue entry size is too large: log2size=%u, max=%u" +pci_nvme_err_startfail_css(uint8_t css) "nvme_start_ctrl failed because invalid command set selected:%u" pci_nvme_err_startfail_asqent_sz_zero(void) "nvme_start_ctrl failed because the admin submission queue size is zero" pci_nvme_err_startfail_acqent_sz_zero(void) "nvme_start_ctrl failed because the admin completion queue size is zero" pci_nvme_err_startfail(void) "setting controller enable bit failed" diff --git a/include/block/nvme.h b/include/block/nvme.h index 868cf53f0b..bc20a2ba5e 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -82,6 +82,10 @@ enum NvmeCapMask { #define NVME_CAP_SET_PMRS(cap, val) (cap |= (uint64_t)(val & CAP_PMR_MASK)\ << CAP_PMR_SHIFT) +enum NvmeCapCss { + NVME_CAP_CSS_NVM = 1 << 0, +}; + enum NvmeCcShift { CC_EN_SHIFT = 0, CC_CSS_SHIFT = 4,