From patchwork Fri Aug 2 06:49:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiko Odaki X-Patchwork-Id: 13751148 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C91CFC52D70 for ; Fri, 2 Aug 2024 06:51:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sZm7a-0001Q3-7l; Fri, 02 Aug 2024 02:50:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sZm7Y-0001Ha-5J for qemu-devel@nongnu.org; Fri, 02 Aug 2024 02:50:36 -0400 Received: from mail-pg1-x535.google.com ([2607:f8b0:4864:20::535]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sZm7W-0000wb-Lf for qemu-devel@nongnu.org; Fri, 02 Aug 2024 02:50:35 -0400 Received: by mail-pg1-x535.google.com with SMTP id 41be03b00d2f7-6e7e23b42c3so4998127a12.1 for ; Thu, 01 Aug 2024 23:50:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1722581433; x=1723186233; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ZZGRu8v6oxuF32W/xrA/69BjX55/YFUQg7PXZsmlE7o=; b=bwQhuOwtdn8cs7TWkvhG7XUHPvhXg5Fop+3Imn0OTePQBH8Vn74GjoIC8HgSCN9Ee1 oWMb+GjiWmUKqhwxwVbIfbbIx08l4jqA46em7scmE/7o6ELYVYASuTRCPaOIj5wgD8UZ qs7Y3sZq2in73kjTuJV5EzGcAW4SNobmjhewfq+VhzBQqDqXiq3DwBzZyU9ufO14CXwb z/TdVFTQdo3wIrAtP+L6RSucybC4pnJ+mM6W4DCpSpBF72HcbrWFJ0CGq9LuypIA4yvo +ppOzFjv7UALEedynQ9eecLun3M6CE7r6KYCyif18JjkADlq/EID1WS+QyacK8fRDPHw ejaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722581433; x=1723186233; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZZGRu8v6oxuF32W/xrA/69BjX55/YFUQg7PXZsmlE7o=; b=PWxSls3jOms5GhqIHONgGQNtaR3m+oYza4jT5q4SLAAf2Nd7h0HiBmCi1s6x7VOPkB duh/tCEuBC46VjRo0KFRHjzwotEVswzOpqnEyM9sfmbvoL1s7kaMqk5DmlK+tcdA1a57 olW9ILj/4mo7mH1MoShhKYahGuDiXG4TqQYcJOMpY3s5va1SbKhs+deefJjV5dnHR9vC dyA+6FIblA4mQMAtrU0+1ca24zGi7pLSEonXpFQ1imcktfSgPvItIN+2T7vouF/a3/Ic bvRnrd+Dlnul+A0u8eZWzJ1citBkDycYifWN6MfCsa0Z0YobFvZb7mM6yqurlNL02BZf CuNg== X-Gm-Message-State: AOJu0YySFbSQ9PMwkCTGlyiTO4J7MX8rqTPLNnvt0rK+dTWNSaFcYrA3 ZBpSrSwKGyfY7Vvsm82eHukETOIoprD81jPSqcX+KejVrVR5CJMEp5BhQKVmTZU= X-Google-Smtp-Source: AGHT+IGwVSyhB8pGmmvcsq34mHa6UqBFBHAfw36HYcu5TpzyDqYgSyynLNp5G3/5WfJuDonlIjlRUQ== X-Received: by 2002:a05:6a21:b85:b0:1c4:a30a:c819 with SMTP id adf61e73a8af0-1c699559e30mr2937915637.21.1722581433243; Thu, 01 Aug 2024 23:50:33 -0700 (PDT) Received: from localhost ([157.82.201.15]) by smtp.gmail.com with UTF8SMTPSA id d9443c01a7336-1ff58f5a473sm9934605ad.106.2024.08.01.23.50.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Aug 2024 23:50:32 -0700 (PDT) From: Akihiko Odaki Date: Fri, 02 Aug 2024 15:49:47 +0900 Subject: [PATCH for-9.2 v6 3/9] pcie_sriov: Ensure PF and VF are mutually exclusive MIME-Version: 1.0 Message-Id: <20240802-sriov-v6-3-0c8ff49c4276@daynix.com> References: <20240802-sriov-v6-0-0c8ff49c4276@daynix.com> In-Reply-To: <20240802-sriov-v6-0-0c8ff49c4276@daynix.com> To: "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goa?= =?utf-8?q?ter?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Jason Wang , Sriram Yagnaraman , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Yui Washizu , Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: none client-ip=2607:f8b0:4864:20::535; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x535.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org A device cannot be a SR-IOV PF and a VF at the same time. Signed-off-by: Akihiko Odaki --- hw/pci/pcie_sriov.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 56523ab4e833..ec8fc0757b92 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -42,6 +42,11 @@ bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, uint8_t *cfg = dev->config + offset; uint8_t *wmask; + if (pci_is_vf(dev)) { + error_setg(errp, "a device cannot be a SR-IOV PF and a VF at the same time"); + return false; + } + if (total_vfs) { uint16_t ari_cap = pcie_find_capability(dev, PCI_EXT_CAP_ID_ARI); uint16_t first_vf_devfn = dev->devfn + vf_offset;