From nobody Fri Nov 14 16:58:13 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1588711069; cv=none; d=zohomail.com; s=zohoarc; b=BNLUsEam+auALzrN82nDe/YVBlP/K4aUthdOdNuPQ4U/wL6ni3zWTY5UMof3eSH2wZ3QnatsvW6JD1xFc94OoNKJVXwM+b7l/uak4IjZndOrrc8jPazXwMRqvfTxjtvxVmZF2fLabD0FsZcZ7Jum4H/cj/XWPLFsw1+eX9VFHRE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1588711069; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=j6AUqAZYWh0iPZMTYZgWW10uRaeEqWHJxwTsturNngQ=; b=YBcPPlfOuhmrLGE7gJKVs7kmr3e8rCODTFUdYkaDC+iTPM2k8BsKLT5FSzfiie4rfGUCSeLrXolbIS2cwfB1bTeJSM7uiXpRgnekPn15Uk9wBtWch56J20ztOAOU0yCP4F01qrsrwjgke0I224tGiU4In+fbxHUVqgs0GYXXPoI= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1588711069490169.8697307049614; Tue, 5 May 2020 13:37:49 -0700 (PDT) Received: from localhost ([::1]:42972 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jW4K4-0006P6-6A for importer@patchew.org; Tue, 05 May 2020 16:37:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47398) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jW4Iu-0004hm-Gz; Tue, 05 May 2020 16:36:36 -0400 Received: from charlie.dont.surf ([128.199.63.193]:57576) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jW4Iq-0007px-P6; Tue, 05 May 2020 16:36:36 -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 2F3A2BF720; Tue, 5 May 2020 20:36:30 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH 1/2] hw/block/nvme: fix pin-based interrupt behavior Date: Tue, 5 May 2020 22:36:02 +0200 Message-Id: <20200505203603.278339-2-its@irrelevant.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200505203603.278339-1-its@irrelevant.dk> References: <20200505203603.278339-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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 = 2020/05/05 16:36:30 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Kevin Wolf , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Klaus Jensen First, since the device only supports MSI-X or pin-based interrupt, if MSI-X is not enabled, it should not accept interrupt vectors different from 0 when creating completion queues. Secondly, the irq_status NvmeCtrl member is meant to be compared to the INTMS register, so it should only be 32 bits wide. And it is really only useful when used with multi-message MSI. Third, since we do not force a 1-to-1 correspondence between cqid and interrupt vector, the irq_status register should not have bits set according to cqid, but according to the associated interrupt vector. Fix these issues, but keep irq_status available so we can easily support multi-message MSI down the line. Fixes: 5e9aa92eb1a5 ("hw/block: Fix pin-based interrupt behaviour of NVMe") Signed-off-by: Klaus Jensen --- hw/block/nvme.c | 12 ++++++++---- hw/block/nvme.h | 2 +- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 9b453423cf2c..2b072bbb21e7 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -127,8 +127,8 @@ static void nvme_irq_assert(NvmeCtrl *n, NvmeCQueue *cq) msix_notify(&(n->parent_obj), cq->vector); } else { trace_nvme_irq_pin(); - assert(cq->cqid < 64); - n->irq_status |=3D 1 << cq->cqid; + assert(cq->vector < 32); + n->irq_status |=3D 1 << cq->vector; nvme_irq_check(n); } } else { @@ -142,8 +142,8 @@ static void nvme_irq_deassert(NvmeCtrl *n, NvmeCQueue *= cq) if (msix_enabled(&(n->parent_obj))) { return; } else { - assert(cq->cqid < 64); - n->irq_status &=3D ~(1 << cq->cqid); + assert(cq->vector < 32); + n->irq_status &=3D ~(1 << cq->vector); nvme_irq_check(n); } } @@ -642,6 +642,10 @@ static uint16_t nvme_create_cq(NvmeCtrl *n, NvmeCmd *c= md) trace_nvme_err_invalid_create_cq_addr(prp1); return NVME_INVALID_FIELD | NVME_DNR; } + if (unlikely(!msix_enabled(&n->parent_obj) && vector)) { + trace_nvme_err_invalid_create_cq_vector(vector); + return NVME_INVALID_IRQ_VECTOR | NVME_DNR; + } if (unlikely(vector > n->num_queues)) { trace_nvme_err_invalid_create_cq_vector(vector); return NVME_INVALID_IRQ_VECTOR | NVME_DNR; diff --git a/hw/block/nvme.h b/hw/block/nvme.h index 6520a9f0bead..db62589247d7 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -78,7 +78,7 @@ typedef struct NvmeCtrl { uint32_t cmbsz; uint32_t cmbloc; uint8_t *cmbuf; - uint64_t irq_status; + uint32_t irq_status; uint64_t host_timestamp; /* Timestamp sent by the h= ost */ uint64_t timestamp_set_qemu_clock_ms; /* QEMU clock time */ =20 --=20 2.26.2