From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232254; cv=none; d=zohomail.com; s=zohoarc; b=gT3nzURkGFhgJ8jM6QV8ZNZhz7BdPkRbuwXOum13gaSoIJWYp4HbwL55h3Y0vXPRHJq9pLSp3mhtfpAfHkVge2UrpDzLWb/O5a5kAUjZfESzsYzs/AHONuNgnP77UUWZMPAKlGqmsAAmg+tq1+REZF968OR467HINQhywJoFWxE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1708232254; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=lANSO1jXSXyyYFwdiC0HZLY18b3MvIaJNcnJD+ikwbc=; b=T53MJ4K3akPMPVKNi7re0rso6Cp0sdcJ9kHMIDrt+KROiAFRSUSwOy5f9ayxZQ4KdJ8JuPbnJPQunM5y6QcraZAHZAEnBi0d4ME0B9VBgMrsJxuu4FnSS/LoT1L8OsQ9a7VtFa7b5NZmo52GVqLqxb/25GKubZKbXo3cTndbIN4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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 1708232254305370.4635224752217; Sat, 17 Feb 2024 20:57:34 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rbZEG-0001J2-Uu; Sat, 17 Feb 2024 23:56:40 -0500 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 1rbZEF-0001IZ-FV for qemu-devel@nongnu.org; Sat, 17 Feb 2024 23:56:39 -0500 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 1rbZEC-0003zN-0l for qemu-devel@nongnu.org; Sat, 17 Feb 2024 23:56:39 -0500 Received: by mail-pg1-x535.google.com with SMTP id 41be03b00d2f7-5d81b08d6f2so2114236a12.0 for ; Sat, 17 Feb 2024 20:56:35 -0800 (PST) Received: from localhost ([157.82.200.138]) by smtp.gmail.com with UTF8SMTPSA id qn11-20020a17090b3d4b00b00298f88c3e48sm2573753pjb.11.2024.02.17.20.56.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 17 Feb 2024 20:56:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1708232195; x=1708836995; 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=lANSO1jXSXyyYFwdiC0HZLY18b3MvIaJNcnJD+ikwbc=; b=KqUVa5XORA5TVed1RvoUi9ePWV9YrPSgUs0EM4fDp7gTwkqPHru31ghcclTffarEt2 OfxVUSTIQrXvtwNfTCvh1dCDITMuqIe11ryfcq+WYi9aRzz8vHEwWK77EFakjXG/8njA sbuUIdbSdWk9MEwEVN5ln0eZAzhE+iRrNyYlyg9k2Ir3WSHB2PvjRHJDQNfaHzkrjheG WPi85bUElTKXVc4j7Y0BR+DfvQ7JBfXXiIHw43DWmiWrzvZ87+at87rPOsMPxTsAKa5d raAHOwTnBzBSSbnfIbIP6JC5eqnXyVHR2dxB5lLkw197W8IHljjCD+3ls5Ss7IEVCIjP aRqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708232195; x=1708836995; 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=lANSO1jXSXyyYFwdiC0HZLY18b3MvIaJNcnJD+ikwbc=; b=vMdLKa1TxePO6Xo3kKhzpVxTkrW9FaW/SW8+9eHh6ghu/0HkXrCh7487Yq1z1HeFRa fKdqfWhNEylQ8LobuXNqoGaUS1bIZNdd4RRh54grDKnh5qGHziNF/knxSrQoeHxSs0Qg 207E0p8ER8QY6us1RMgxKQBXUTe0EyHd3T/etz3b570GNt93qQpxfzon7bfZqjgph7Cg 2tQrscIbe/6xFVxzps195533xhIiaq6zMi5nU3mWTJ6QPUd6GYhBsv5KiErcSBIC9STu umXb3CS4ALY22an6ve8Sa5R+q7DimLqIFgxYGDr0gy6kPufp608PQumrPDRzE7zewQLP frOQ== X-Gm-Message-State: AOJu0YyQHsi9WWcqYA3aaXvWwarLYZRc7w6xgYsSvPzNQvT7K271vfX0 YbKfIK4bTU8baUpPBKdn1V/8Fqb3ROaS5FenYnWj/bygsIq7EHeA7J55ulXjYe4= X-Google-Smtp-Source: AGHT+IElYIcBSLiSOm93qvIwbQ0glbg/m3UnUi6QNYsQGJar95QCMchWFq6ABpGWPvGwiwz9zFKmow== X-Received: by 2002:a05:6a20:e92:b0:19f:8639:c24f with SMTP id fk18-20020a056a200e9200b0019f8639c24fmr8547478pzb.17.1708232194773; Sat, 17 Feb 2024 20:56:34 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:06 +0900 Subject: [PATCH v5 01/11] hw/nvme: Use pcie_sriov_num_vfs() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-1-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki , qemu-stable@nongnu.org X-Mailer: b4 0.12.3 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: 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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232256177100008 nvme_sriov_pre_write_ctrl() used to directly inspect SR-IOV configurations to know the number of VFs being disabled due to SR-IOV configuration writes, but the logic was flawed and resulted in out-of-bound memory access. It assumed PCI_SRIOV_NUM_VF always has the number of currently enabled VFs, but it actually doesn't in the following cases: - PCI_SRIOV_NUM_VF has been set but PCI_SRIOV_CTRL_VFE has never been. - PCI_SRIOV_NUM_VF was written after PCI_SRIOV_CTRL_VFE was set. - VFs were only partially enabled because of realization failure. It is a responsibility of pcie_sriov to interpret SR-IOV configurations and pcie_sriov does it correctly, so use pcie_sriov_num_vfs(), which it provides, to get the number of enabled VFs before and after SR-IOV configuration writes. Cc: qemu-stable@nongnu.org Fixes: 11871f53ef8e ("hw/nvme: Add support for the Virtualization Managemen= t command") Suggested-by: Michael S. Tsirkin Signed-off-by: Akihiko Odaki Reviewed-by: Klaus Jensen --- hw/nvme/ctrl.c | 26 ++++++++------------------ 1 file changed, 8 insertions(+), 18 deletions(-) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index f026245d1e9e..7a56e7b79b4d 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -8466,36 +8466,26 @@ static void nvme_pci_reset(DeviceState *qdev) nvme_ctrl_reset(n, NVME_RESET_FUNCTION); } =20 -static void nvme_sriov_pre_write_ctrl(PCIDevice *dev, uint32_t address, - uint32_t val, int len) +static void nvme_sriov_post_write_config(PCIDevice *dev, uint16_t old_num_= vfs) { NvmeCtrl *n =3D NVME(dev); NvmeSecCtrlEntry *sctrl; - uint16_t sriov_cap =3D dev->exp.sriov_cap; - uint32_t off =3D address - sriov_cap; - int i, num_vfs; + int i; =20 - if (!sriov_cap) { - return; - } - - if (range_covers_byte(off, len, PCI_SRIOV_CTRL)) { - if (!(val & PCI_SRIOV_CTRL_VFE)) { - num_vfs =3D pci_get_word(dev->config + sriov_cap + PCI_SRIOV_N= UM_VF); - for (i =3D 0; i < num_vfs; i++) { - sctrl =3D &n->sec_ctrl_list.sec[i]; - nvme_virt_set_state(n, le16_to_cpu(sctrl->scid), false); - } - } + for (i =3D pcie_sriov_num_vfs(dev); i < old_num_vfs; i++) { + sctrl =3D &n->sec_ctrl_list.sec[i]; + nvme_virt_set_state(n, le16_to_cpu(sctrl->scid), false); } } =20 static void nvme_pci_write_config(PCIDevice *dev, uint32_t address, uint32_t val, int len) { - nvme_sriov_pre_write_ctrl(dev, address, val, len); + uint16_t old_num_vfs =3D pcie_sriov_num_vfs(dev); + pci_default_write_config(dev, address, val, len); pcie_cap_flr_write_config(dev, address, val, len); + nvme_sriov_post_write_config(dev, old_num_vfs); } =20 static const VMStateDescription nvme_vmstate =3D { --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232254; cv=none; d=zohomail.com; s=zohoarc; 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bh=uPDCa/8BciEuyUw+U03/RaoojU4wDhAm6Ya631m6yG4=; b=TQbCtyyoiAjotp0n5x396N4tXZE91b9wkpW/EfMzdHjyGpcEB1W/NXJWCSnGRdLnOe 0H8c3UlzwwZUKM0L6L9RNdv0Oj8I51UgA/DbLTqb4Q8CScgQxyYveD/q1QclEIKKwHHO A1yDP77QPaEbQ0qdTJ5+3JGf24x3BdYcEf7rhL3P1l1A+0EZERFXeGgxrr17bTumIG8H in2CDogjrtOhIHbQrMewLzf2GiOQUY7BBSrPDKEJ/5JFLZkoaI6qHGqU+OuBz9FX0Y+2 ByAHOVS8JvNMt3Ju/OByPfTAo6+4YO6WxJKigYdl0Q4kmpzxBmI1uhB9O9+uwj8AobQI IPmw== X-Gm-Message-State: AOJu0YxEBLaH6w7S0DDrlZUWxxjBEFRLxQDtNUL1Aw/jW6ExWDX2FktM ngQR0cWnYvyzOA10ifeGqelOZR5eH3lvI3MwbtZ/cpjYIb8BySpFOOmlHecaAxQ= X-Google-Smtp-Source: AGHT+IGsAvgtZd8rEkv4R1pP1pRp31NKRZ3Mq8LeLF9MymshddwSC9LC9NUTG0ZYeb5QtnQFP6blDg== X-Received: by 2002:a17:902:ec8f:b0:1db:cc11:8530 with SMTP id x15-20020a170902ec8f00b001dbcc118530mr3288132plg.25.1708232201950; Sat, 17 Feb 2024 20:56:41 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:07 +0900 Subject: [PATCH v5 02/11] pcie_sriov: Validate NumVFs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-2-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki , qemu-stable@nongnu.org X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::631; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x631.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232256166100007 The guest may write NumVFs greater than TotalVFs and that can lead to buffer overflow in VF implementations. Cc: qemu-stable@nongnu.org Fixes: 7c0fa8dff811 ("pcie: Add support for Single Root I/O Virtualization = (SR/IOV)") Signed-off-by: Akihiko Odaki --- hw/pci/pcie_sriov.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index a1fe65f5d801..da209b7f47fd 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -176,6 +176,9 @@ static void register_vfs(PCIDevice *dev) =20 assert(sriov_cap > 0); num_vfs =3D pci_get_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF); + if (num_vfs > pci_get_word(dev->config + sriov_cap + PCI_SRIOV_TOTAL_V= F)) { + return; + } =20 dev->exp.sriov_pf.vf =3D g_new(PCIDevice *, num_vfs); =20 --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232264; 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Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::c2f; envelope-from=akihiko.odaki@daynix.com; helo=mail-oo1-xc2f.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232265699100003 Currently there is no way to distinguish the case that rombar is explicitly specified as 1 and the case that rombar is not specified. Set rombar -1 by default to distinguish these cases just as it is done for addr and romsize. It was confirmed that changing the default value to -1 will not change the behavior by looking at occurences of rom_bar. $ git grep -w rom_bar hw/display/qxl.c:328: QXLRom *rom =3D memory_region_get_ram_ptr(&d->rom_= bar); hw/display/qxl.c:431: qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size); hw/display/qxl.c:1048: QXLRom *rom =3D memory_region_get_ram_ptr(&qxl->r= om_bar); hw/display/qxl.c:2131: memory_region_init_rom(&qxl->rom_bar, OBJECT(qxl)= , "qxl.vrom", hw/display/qxl.c:2154: PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar); hw/display/qxl.h:101: MemoryRegion rom_bar; hw/pci/pci.c:74: DEFINE_PROP_UINT32("rombar", PCIDevice, rom_bar, 1), hw/pci/pci.c:2329: if (!pdev->rom_bar) { hw/vfio/pci.c:1019: if (vdev->pdev.romfile || !vdev->pdev.rom_bar) { hw/xen/xen_pt_load_rom.c:29: if (dev->romfile || !dev->rom_bar) { include/hw/pci/pci_device.h:150: uint32_t rom_bar; rom_bar refers to a different variable in qxl. It is only tested if the value is 0 or not in the other places. Signed-off-by: Akihiko Odaki --- hw/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 6496d027ca61..47f38375bb09 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -71,7 +71,7 @@ static Property pci_props[] =3D { DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1), DEFINE_PROP_STRING("romfile", PCIDevice, romfile), DEFINE_PROP_UINT32("romsize", PCIDevice, romsize, -1), - DEFINE_PROP_UINT32("rombar", PCIDevice, rom_bar, 1), + DEFINE_PROP_UINT32("rombar", PCIDevice, rom_bar, -1), DEFINE_PROP_BIT("multifunction", PCIDevice, cap_present, QEMU_PCI_CAP_MULTIFUNCTION_BITNR, false), DEFINE_PROP_BIT("x-pcie-lnksta-dllla", PCIDevice, cap_present, --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; 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bh=0pI7/kgzAyUqVmg5oIUsMyi/X4fn9vaVlpf42x700uc=; b=ZVNdrvCZRfclnsB1rQKgzyGirGRFAvc2h58YktSVIKti9p+FNPOZo4/TloJIpoTpru /XoNBJCdurcRcBeiZ33SlejhHbuObQbPzLPxGiNHaJsVTP1NiwGVIlmIrdyPSgEkF9jO M2BPFqSiNejbnyHn4iN+kV1ccdhCmtumtWfn9j5Q2nKagO9EPrNAfPhkGGTtRdpL7xVq mH7kwZ17kDggJRaHldNqln4iU+2prag8cKdQHcv24KUDSO1eBc5xz6FXq8EsqMOa+b2u EtBqthVnfcYYU7FORgUZjrOtR/1OWPmK0ro7qXNBlPm8xmlW2jQpwmVf4obD3AhElLu7 FUKA== X-Gm-Message-State: AOJu0YwY1WLPz1KyYsHLCXqvVlUOZvcHujXta2hXCmyyBUw9Ig+hNXwm qB8AkPyl72LUJ+PTRI9DQnPdp6wR5sfKaBaLXWVSGIDooQTYxTNd/9leFMMcmzY= X-Google-Smtp-Source: AGHT+IEaExf+BkjnkyXkRywq0dPw1dg6kMWucDIcpKPmzB1kZPWB0qUXb2DBecP0OwLjPVPd9pQCAw== X-Received: by 2002:a17:90b:3911:b0:299:3bf6:f2eb with SMTP id ob17-20020a17090b391100b002993bf6f2ebmr4565244pjb.5.1708232215876; Sat, 17 Feb 2024 20:56:55 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:09 +0900 Subject: [PATCH v5 04/11] hw/pci: Determine if rombar is explicitly enabled MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-4-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::1035; envelope-from=akihiko.odaki@daynix.com; helo=mail-pj1-x1035.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232323737100006 vfio determines if rombar is explicitly enabled by inspecting QDict. Inspecting QDict is not nice because QDict is untyped and depends on the details on the external interface. Add an infrastructure to determine if rombar is explicitly enabled to hw/pci. Signed-off-by: Akihiko Odaki --- include/hw/pci/pci_device.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index d3dd0f64b273..54fa0676abf1 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -205,6 +205,11 @@ static inline uint16_t pci_get_bdf(PCIDevice *dev) return PCI_BUILD_BDF(pci_bus_num(pci_get_bus(dev)), dev->devfn); } =20 +static inline bool pci_rom_bar_explicitly_enabled(PCIDevice *dev) +{ + return dev->rom_bar && dev->rom_bar !=3D -1; +} + uint16_t pci_requester_id(PCIDevice *dev); =20 /* DMA access functions */ --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232273; cv=none; d=zohomail.com; s=zohoarc; b=UUAlNJh4KWs9z8DB2P6YVJ/w5W8fDo7+eWsmsPz1tcqVq5+Yt5H57nkikEV6moGSYeAPQT6DUbm+WREeCmcm0kmRJ3+Twl3txe8bC932gKxt7pQvx/k5tWlV6PNrXaTzr3qs9YALBbcML66g2U5sLzW9YNl3jThbOBwjpa7wsBA= ARC-Message-Signature: i=1; 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Sat, 17 Feb 2024 20:57:02 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:10 +0900 Subject: [PATCH v5 05/11] vfio: Avoid inspecting option QDict for rombar MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-5-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::c2b; envelope-from=akihiko.odaki@daynix.com; helo=mail-oo1-xc2b.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232275647100003 Use pci_rom_bar_explicitly_enabled() to determine if rombar is explicitly enabled. Signed-off-by: Akihiko Odaki --- hw/vfio/pci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 4fa387f0430d..647f15b2a060 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1012,7 +1012,6 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev) { uint32_t orig, size =3D cpu_to_le32((uint32_t)PCI_ROM_ADDRESS_MASK); off_t offset =3D vdev->config_offset + PCI_ROM_ADDRESS; - DeviceState *dev =3D DEVICE(vdev); char *name; int fd =3D vdev->vbasedev.fd; =20 @@ -1046,7 +1045,7 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev) } =20 if (vfio_opt_rom_in_denylist(vdev)) { - if (dev->opts && qdict_haskey(dev->opts, "rombar")) { + if (pci_rom_bar_explicitly_enabled(&vdev->pdev)) { warn_report("Device at %s is known to cause system instability" " issues during option rom execution", vdev->vbasedev.name); --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; 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Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::32e; envelope-from=akihiko.odaki@daynix.com; helo=mail-ot1-x32e.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232343823100004 It is no longer used. Signed-off-by: Akihiko Odaki Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- include/hw/qdev-core.h | 4 ---- hw/core/qdev.c | 1 - system/qdev-monitor.c | 12 +++++++----- 3 files changed, 7 insertions(+), 10 deletions(-) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 9228e96c87e9..5954404dcbfe 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -237,10 +237,6 @@ struct DeviceState { * @pending_deleted_expires_ms: optional timeout for deletion events */ int64_t pending_deleted_expires_ms; - /** - * @opts: QDict of options for the device - */ - QDict *opts; /** * @hotplugged: was device added after PHASE_MACHINE_READY? */ diff --git a/hw/core/qdev.c b/hw/core/qdev.c index c68d0f7c512f..7349c9a86be8 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -706,7 +706,6 @@ static void device_finalize(Object *obj) dev->canonical_path =3D NULL; } =20 - qobject_unref(dev->opts); g_free(dev->id); } =20 diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c index a13db763e5dd..71c00f62ee38 100644 --- a/system/qdev-monitor.c +++ b/system/qdev-monitor.c @@ -625,6 +625,7 @@ DeviceState *qdev_device_add_from_qdict(const QDict *op= ts, char *id; DeviceState *dev =3D NULL; BusState *bus =3D NULL; + QDict *properties; =20 driver =3D qdict_get_try_str(opts, "driver"); if (!driver) { @@ -705,13 +706,14 @@ DeviceState *qdev_device_add_from_qdict(const QDict *= opts, } =20 /* set properties */ - dev->opts =3D qdict_clone_shallow(opts); - qdict_del(dev->opts, "driver"); - qdict_del(dev->opts, "bus"); - qdict_del(dev->opts, "id"); + properties =3D qdict_clone_shallow(opts); + qdict_del(properties, "driver"); + qdict_del(properties, "bus"); + qdict_del(properties, "id"); =20 - object_set_properties_from_keyval(&dev->parent_obj, dev->opts, from_js= on, + object_set_properties_from_keyval(&dev->parent_obj, properties, from_j= son, errp); + qobject_unref(properties); if (*errp) { goto err_del_dev; } --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; 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Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::52a; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x52a.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232357845100003 pcie_sriov_pf_disable_vfs() is called when resetting the PF, but it only disables VFs and does not reset SR-IOV extended capability, leaking the state and making the VF Enable register inconsistent with the actual state. Replace pcie_sriov_pf_disable_vfs() with pcie_sriov_pf_reset(), which does not only disable VFs but also resets the capability. Signed-off-by: Akihiko Odaki --- include/hw/pci/pcie_sriov.h | 4 ++-- hw/net/igb.c | 2 +- hw/nvme/ctrl.c | 2 +- hw/pci/pcie_sriov.c | 26 ++++++++++++++++++-------- 4 files changed, 22 insertions(+), 12 deletions(-) diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index 095fb0c9edf9..b77eb7bf58ac 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -58,8 +58,8 @@ void pcie_sriov_pf_add_sup_pgsize(PCIDevice *dev, uint16_= t opt_sup_pgsize); void pcie_sriov_config_write(PCIDevice *dev, uint32_t address, uint32_t val, int len); =20 -/* Reset SR/IOV VF Enable bit to unregister all VFs */ -void pcie_sriov_pf_disable_vfs(PCIDevice *dev); +/* Reset SR/IOV */ +void pcie_sriov_pf_reset(PCIDevice *dev); =20 /* Get logical VF number of a VF - only valid for VFs */ uint16_t pcie_sriov_vf_number(PCIDevice *dev); diff --git a/hw/net/igb.c b/hw/net/igb.c index 0b5c31a58bba..9345506f81ec 100644 --- a/hw/net/igb.c +++ b/hw/net/igb.c @@ -493,7 +493,7 @@ static void igb_qdev_reset_hold(Object *obj) =20 trace_e1000e_cb_qdev_reset_hold(); =20 - pcie_sriov_pf_disable_vfs(d); + pcie_sriov_pf_reset(d); igb_core_reset(&s->core); } =20 diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 7a56e7b79b4d..7c0d3f108724 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -7116,7 +7116,7 @@ static void nvme_ctrl_reset(NvmeCtrl *n, NvmeResetTyp= e rst) } =20 if (rst !=3D NVME_RESET_CONTROLLER) { - pcie_sriov_pf_disable_vfs(pci_dev); + pcie_sriov_pf_reset(pci_dev); } } =20 diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index da209b7f47fd..51b66d1bb342 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -249,16 +249,26 @@ void pcie_sriov_config_write(PCIDevice *dev, uint32_t= address, } =20 =20 -/* Reset SR/IOV VF Enable bit to trigger an unregister of all VFs */ -void pcie_sriov_pf_disable_vfs(PCIDevice *dev) +/* Reset SR/IOV */ +void pcie_sriov_pf_reset(PCIDevice *dev) { uint16_t sriov_cap =3D dev->exp.sriov_cap; - if (sriov_cap) { - uint32_t val =3D pci_get_byte(dev->config + sriov_cap + PCI_SRIOV_= CTRL); - if (val & PCI_SRIOV_CTRL_VFE) { - val &=3D ~PCI_SRIOV_CTRL_VFE; - pcie_sriov_config_write(dev, sriov_cap + PCI_SRIOV_CTRL, val, = 1); - } + if (!sriov_cap) { + return; + } + + pci_set_word(dev->config + sriov_cap + PCI_SRIOV_CTRL, 0); + unregister_vfs(dev); + + /* + * Default is to use 4K pages, software can modify it + * to any of the supported bits + */ + pci_set_word(dev->config + sriov_cap + PCI_SRIOV_SYS_PGSIZE, 0x1); + + for (uint16_t i =3D 0; i < PCI_NUM_REGIONS; i++) { + pci_set_quad(dev->config + sriov_cap + PCI_SRIOV_BAR + i * 4, + dev->exp.sriov_pf.vf_bar_type[i]); } } =20 --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232342; cv=none; d=zohomail.com; s=zohoarc; b=MBbFMIGwV7Jx1TxVHwOVFWzxaHRjQKj7YFj6bwldQTVFXJUFklTrv/adSv9oCa/U5BMnLIE/XL398BVDGlPqT49MKrGI7c2kPB9n0GpdQfRbjEfPTUMZ1sPKhFMFycbGbChjGf1KKZtqUJPN+CQfQNwXDPDN2RoEOnwtbk/kXTE= ARC-Message-Signature: i=1; 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Sat, 17 Feb 2024 20:57:22 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:13 +0900 Subject: [PATCH v5 08/11] pcie_sriov: Do not reset NumVFs after disabling VFs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-8-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::230; envelope-from=akihiko.odaki@daynix.com; helo=mail-oi1-x230.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232343788100003 The spec does not NumVFs is reset after disabling VFs except when resetting the PF. Clearing it is guest visible and out of spec, even though Linux doesn't rely on this value being preserved, so we never noticed. Fixes: 7c0fa8dff811 ("pcie: Add support for Single Root I/O Virtualization = (SR/IOV)") Signed-off-by: Akihiko Odaki --- hw/pci/pcie_sriov.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 51b66d1bb342..e9b23221d713 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -215,7 +215,6 @@ static void unregister_vfs(PCIDevice *dev) g_free(dev->exp.sriov_pf.vf); dev->exp.sriov_pf.vf =3D NULL; dev->exp.sriov_pf.num_vfs =3D 0; - pci_set_word(dev->config + dev->exp.sriov_cap + PCI_SRIOV_NUM_VF, 0); } =20 void pcie_sriov_config_write(PCIDevice *dev, uint32_t address, @@ -260,6 +259,8 @@ void pcie_sriov_pf_reset(PCIDevice *dev) pci_set_word(dev->config + sriov_cap + PCI_SRIOV_CTRL, 0); unregister_vfs(dev); =20 + pci_set_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF, 0); + /* * Default is to use 4K pages, software can modify it * to any of the supported bits --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Sat, 17 Feb 2024 20:57:29 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:14 +0900 Subject: [PATCH v5 09/11] hw/pci: Always call pcie_sriov_pf_reset() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-9-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::430; envelope-from=akihiko.odaki@daynix.com; helo=mail-pf1-x430.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232297951100001 Call pcie_sriov_pf_reset() from pci_do_device_reset() just as we do for msi_reset() and msix_reset() to prevent duplicating code for each SR-IOV PF. Signed-off-by: Akihiko Odaki --- hw/net/igb.c | 2 -- hw/nvme/ctrl.c | 4 ---- hw/pci/pci.c | 1 + 3 files changed, 1 insertion(+), 6 deletions(-) diff --git a/hw/net/igb.c b/hw/net/igb.c index 9345506f81ec..9b37523d6df8 100644 --- a/hw/net/igb.c +++ b/hw/net/igb.c @@ -488,12 +488,10 @@ static void igb_pci_uninit(PCIDevice *pci_dev) =20 static void igb_qdev_reset_hold(Object *obj) { - PCIDevice *d =3D PCI_DEVICE(obj); IGBState *s =3D IGB(obj); =20 trace_e1000e_cb_qdev_reset_hold(); =20 - pcie_sriov_pf_reset(d); igb_core_reset(&s->core); } =20 diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 7c0d3f108724..c1af4b87b34a 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -7114,10 +7114,6 @@ static void nvme_ctrl_reset(NvmeCtrl *n, NvmeResetTy= pe rst) sctrl =3D &n->sec_ctrl_list.sec[i]; nvme_virt_set_state(n, le16_to_cpu(sctrl->scid), false); } - - if (rst !=3D NVME_RESET_CONTROLLER) { - pcie_sriov_pf_reset(pci_dev); - } } =20 if (rst !=3D NVME_RESET_CONTROLLER) { diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 47f38375bb09..3d37ddbb101e 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -409,6 +409,7 @@ static void pci_do_device_reset(PCIDevice *dev) =20 msi_reset(dev); msix_reset(dev); + pcie_sriov_pf_reset(dev); } =20 /* --=20 2.43.1 From nobody Fri Nov 1 05:40:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=1708232360; cv=none; d=zohomail.com; s=zohoarc; b=LBOjqctMSKQvOIes+y5jO0jLk71e6BE7clsRHekGijngBRmmuvzl8+Mbg37A8XupnppmTV8u3UnJ8ZpDUp3w4b13UpZZjO3WAihkFacQRYtnfh/AzzSy0mTbpkHIYqVGYjL7qHdwL94U1VwI0zICQw7Rf9DRInvBLrA3SG8P09k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1708232360; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=9Dt5tQ5uZ9hzL7haEhvwz3ceAUkLCui5MeuPY2TlXFo=; b=WxszdeqH1wBPG0O8LT4sdJcdSlb7Xnz4y1jk7mHWHBMHGeUGGM6DG/Tx1lJY4fGQ+CPw+/1g36Z1dBv25Os9zvp1vRt8immA96800RuZn0r9uTDECjb4wq7GtoF0Xu+S2pCj+yQJ67AOaokPp3jWwiJxBds2LqxYxicTIWbifMY= ARC-Authentication-Results: i=1; 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Sat, 17 Feb 2024 20:57:36 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:15 +0900 Subject: [PATCH v5 10/11] hw/pci: Rename has_power to enabled MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-10-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::635; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x635.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232361829100003 The renamed state will not only represent powering state of PFs, but also represent SR-IOV VF enablement in the future. Signed-off-by: Akihiko Odaki --- include/hw/pci/pci.h | 7 ++++++- include/hw/pci/pci_device.h | 2 +- hw/pci/pci.c | 14 +++++++------- hw/pci/pci_host.c | 4 ++-- 4 files changed, 16 insertions(+), 11 deletions(-) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index eaa3fc99d884..6c92b2f70008 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -642,6 +642,11 @@ static inline void pci_irq_pulse(PCIDevice *pci_dev) } =20 MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); -void pci_set_power(PCIDevice *pci_dev, bool state); +void pci_set_enabled(PCIDevice *pci_dev, bool state); + +static inline void pci_set_power(PCIDevice *pci_dev, bool state) +{ + pci_set_enabled(pci_dev, state); +} =20 #endif diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index 54fa0676abf1..cde53065e4fe 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -56,7 +56,7 @@ typedef struct PCIReqIDCache PCIReqIDCache; struct PCIDevice { DeviceState qdev; bool partially_hotplugged; - bool has_power; + bool enabled; =20 /* PCI config space */ uint8_t *config; diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 3d37ddbb101e..1543f284b255 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -1525,7 +1525,7 @@ static void pci_update_mappings(PCIDevice *d) continue; =20 new_addr =3D pci_bar_address(d, i, r->type, r->size); - if (!d->has_power) { + if (!d->enabled) { new_addr =3D PCI_BAR_UNMAPPED; } =20 @@ -1613,7 +1613,7 @@ void pci_default_write_config(PCIDevice *d, uint32_t = addr, uint32_t val_in, int pci_update_irq_disabled(d, was_irq_disabled); memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); + & PCI_COMMAND_MASTER) && d->enabled); } =20 msi_write_config(d, addr, val_in, l); @@ -2811,18 +2811,18 @@ MSIMessage pci_get_msi_message(PCIDevice *dev, int = vector) return msg; } =20 -void pci_set_power(PCIDevice *d, bool state) +void pci_set_enabled(PCIDevice *d, bool state) { - if (d->has_power =3D=3D state) { + if (d->enabled =3D=3D state) { return; } =20 - d->has_power =3D state; + d->enabled =3D state; pci_update_mappings(d); memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); - if (!d->has_power) { + & PCI_COMMAND_MASTER) && d->enabled); + if (!d->enabled) { pci_device_reset(d); } } diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c index dfe6fe618401..0d82727cc9dd 100644 --- a/hw/pci/pci_host.c +++ b/hw/pci/pci_host.c @@ -86,7 +86,7 @@ void pci_host_config_write_common(PCIDevice *pci_dev, uin= t32_t addr, * allowing direct removal of unexposed functions. */ if ((pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) || - !pci_dev->has_power || is_pci_dev_ejected(pci_dev)) { + !pci_dev->enabled || is_pci_dev_ejected(pci_dev)) { return; } =20 @@ -111,7 +111,7 @@ uint32_t pci_host_config_read_common(PCIDevice *pci_dev= , uint32_t addr, * allowing direct removal of unexposed functions. */ if ((pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) || - !pci_dev->has_power || is_pci_dev_ejected(pci_dev)) { + !pci_dev->enabled || is_pci_dev_ejected(pci_dev)) { return ~0x0; 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Sat, 17 Feb 2024 20:57:43 -0800 (PST) From: Akihiko Odaki Date: Sun, 18 Feb 2024 13:56:16 +0900 Subject: [PATCH v5 11/11] pcie_sriov: Reuse SR-IOV VF device instances MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240218-reuse-v5-11-e4fc1c19b5a9@daynix.com> References: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> In-Reply-To: <20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 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: none client-ip=2607:f8b0:4864:20::333; envelope-from=akihiko.odaki@daynix.com; helo=mail-ot1-x333.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1708232323736100005 Disable SR-IOV VF devices by reusing code to power down PCI devices instead of removing them when the guest requests to disable VFs. This allows to realize devices and report VF realization errors at PF realization time. Signed-off-by: Akihiko Odaki --- docs/pcie_sriov.txt | 8 ++-- include/hw/pci/pci.h | 5 -- include/hw/pci/pci_device.h | 15 ++++++ include/hw/pci/pcie_sriov.h | 6 +-- hw/net/igb.c | 13 ++++-- hw/nvme/ctrl.c | 24 ++++++---- hw/pci/pci.c | 2 +- hw/pci/pcie_sriov.c | 110 ++++++++++++++++++++--------------------= ---- 8 files changed, 99 insertions(+), 84 deletions(-) diff --git a/docs/pcie_sriov.txt b/docs/pcie_sriov.txt index a47aad0bfab0..ab2142807f79 100644 --- a/docs/pcie_sriov.txt +++ b/docs/pcie_sriov.txt @@ -52,9 +52,11 @@ setting up a BAR for a VF. ... =20 /* Add and initialize the SR/IOV capability */ - pcie_sriov_pf_init(d, 0x200, "your_virtual_dev", - vf_devid, initial_vfs, total_vfs, - fun_offset, stride); + if (!pcie_sriov_pf_init(d, 0x200, "your_virtual_dev", + vf_devid, initial_vfs, total_vfs, + fun_offset, stride, errp)) { + return; + } =20 /* Set up individual VF BARs (parameters as for normal BARs) */ pcie_sriov_pf_init_vf_bar( ... ) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 6c92b2f70008..442017b4865d 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -644,9 +644,4 @@ static inline void pci_irq_pulse(PCIDevice *pci_dev) MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); void pci_set_enabled(PCIDevice *pci_dev, bool state); =20 -static inline void pci_set_power(PCIDevice *pci_dev, bool state) -{ - pci_set_enabled(pci_dev, state); -} - #endif diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index cde53065e4fe..c4fdc96ef50d 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -210,6 +210,21 @@ static inline bool pci_rom_bar_explicitly_enabled(PCID= evice *dev) return dev->rom_bar && dev->rom_bar !=3D -1; } =20 +static inline void pci_set_power(PCIDevice *pci_dev, bool state) +{ + /* + * Don't change the enabled state of VFs when powering on/off the devi= ce. + * + * When powering on, VFs must not be enabled immediately but they must + * wait until the guest configures SR-IOV. + * When powering off, their corresponding PFs will be reset and disable + * VFs. + */ + if (!pci_is_vf(pci_dev)) { + pci_set_enabled(pci_dev, state); + } +} + uint16_t pci_requester_id(PCIDevice *dev); =20 /* DMA access functions */ diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index b77eb7bf58ac..4b1133f79e15 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -18,7 +18,6 @@ struct PCIESriovPF { uint16_t num_vfs; /* Number of virtual functions created */ uint8_t vf_bar_type[PCI_NUM_REGIONS]; /* Store type for each VF bar = */ - const char *vfname; /* Reference to the device type used for the VFs */ PCIDevice **vf; /* Pointer to an array of num_vfs VF devices */ }; =20 @@ -27,10 +26,11 @@ struct PCIESriovVF { uint16_t vf_number; /* Logical VF number of this function */ }; =20 -void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, +bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, const char *vfname, uint16_t vf_dev_id, uint16_t init_vfs, uint16_t total_vfs, - uint16_t vf_offset, uint16_t vf_stride); + uint16_t vf_offset, uint16_t vf_stride, + Error **errp); void pcie_sriov_pf_exit(PCIDevice *dev); =20 /* Set up a VF bar in the SR/IOV bar area */ diff --git a/hw/net/igb.c b/hw/net/igb.c index 9b37523d6df8..907259fd8b3b 100644 --- a/hw/net/igb.c +++ b/hw/net/igb.c @@ -447,9 +447,16 @@ static void igb_pci_realize(PCIDevice *pci_dev, Error = **errp) =20 pcie_ari_init(pci_dev, 0x150); =20 - pcie_sriov_pf_init(pci_dev, IGB_CAP_SRIOV_OFFSET, TYPE_IGBVF, - IGB_82576_VF_DEV_ID, IGB_MAX_VF_FUNCTIONS, IGB_MAX_VF_FUNCTIONS, - IGB_VF_OFFSET, IGB_VF_STRIDE); + if (!pcie_sriov_pf_init(pci_dev, IGB_CAP_SRIOV_OFFSET, + TYPE_IGBVF, IGB_82576_VF_DEV_ID, + IGB_MAX_VF_FUNCTIONS, IGB_MAX_VF_FUNCTIONS, + IGB_VF_OFFSET, IGB_VF_STRIDE, + errp)) { + pcie_cap_exit(pci_dev); + igb_cleanup_msix(s); + msi_uninit(pci_dev); + return; + } =20 pcie_sriov_pf_init_vf_bar(pci_dev, IGBVF_MMIO_BAR_IDX, PCI_BASE_ADDRESS_MEM_TYPE_64 | PCI_BASE_ADDRESS_MEM_PREFETCH, diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index c1af4b87b34a..98c3e942077c 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -8027,7 +8027,8 @@ static uint64_t nvme_bar_size(unsigned total_queues, = unsigned total_irqs, return bar_size; } =20 -static void nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offs= et) +static bool nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offs= et, + Error **errp) { uint16_t vf_dev_id =3D n->params.use_intel_id ? PCI_DEVICE_ID_INTEL_NVME : PCI_DEVICE_ID_REDHAT_N= VME; @@ -8036,12 +8037,17 @@ static void nvme_init_sriov(NvmeCtrl *n, PCIDevice = *pci_dev, uint16_t offset) le16_to_cpu(cap->vifrsm), NULL, NULL); =20 - pcie_sriov_pf_init(pci_dev, offset, "nvme", vf_dev_id, - n->params.sriov_max_vfs, n->params.sriov_max_vfs, - NVME_VF_OFFSET, NVME_VF_STRIDE); + if (!pcie_sriov_pf_init(pci_dev, offset, "nvme", vf_dev_id, + n->params.sriov_max_vfs, n->params.sriov_max_v= fs, + NVME_VF_OFFSET, NVME_VF_STRIDE, + errp)) { + return false; + } =20 pcie_sriov_pf_init_vf_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64, bar_size); + + return true; } =20 static int nvme_add_pm_capability(PCIDevice *pci_dev, uint8_t offset) @@ -8120,6 +8126,12 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pc= i_dev, Error **errp) return false; } =20 + if (!pci_is_vf(pci_dev) && n->params.sriov_max_vfs && + !nvme_init_sriov(n, pci_dev, 0x120, errp)) { + msix_uninit(pci_dev, &n->bar0, &n->bar0); + return false; + } + nvme_update_msixcap_ts(pci_dev, n->conf_msix_qsize); =20 if (n->params.cmb_size_mb) { @@ -8130,10 +8142,6 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pc= i_dev, Error **errp) nvme_init_pmr(n, pci_dev); } =20 - if (!pci_is_vf(pci_dev) && n->params.sriov_max_vfs) { - nvme_init_sriov(n, pci_dev, 0x120); - } - return true; } =20 diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 1543f284b255..b9d271b30bd5 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2822,7 +2822,7 @@ void pci_set_enabled(PCIDevice *d, bool state) memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) & PCI_COMMAND_MASTER) && d->enabled); - if (!d->enabled) { + if (d->qdev.realized) { pci_device_reset(d); } } diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index e9b23221d713..e40f9631ed93 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -20,15 +20,29 @@ #include "qapi/error.h" #include "trace.h" =20 -static PCIDevice *register_vf(PCIDevice *pf, int devfn, - const char *name, uint16_t vf_num); -static void unregister_vfs(PCIDevice *dev); +static void unrealize_vfs(PCIDevice *dev, uint16_t total_vfs) +{ + for (uint16_t i =3D 0; i < total_vfs; i++) { + Error *err =3D NULL; + PCIDevice *vf =3D dev->exp.sriov_pf.vf[i]; + if (!object_property_set_bool(OBJECT(vf), "realized", false, &err)= ) { + error_reportf_err(err, "Failed to unplug: "); + } + object_unparent(OBJECT(vf)); + object_unref(OBJECT(vf)); + } + g_free(dev->exp.sriov_pf.vf); + dev->exp.sriov_pf.vf =3D NULL; +} =20 -void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, +bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, const char *vfname, uint16_t vf_dev_id, uint16_t init_vfs, uint16_t total_vfs, - uint16_t vf_offset, uint16_t vf_stride) + uint16_t vf_offset, uint16_t vf_stride, + Error **errp) { + BusState *bus =3D qdev_get_parent_bus(&dev->qdev); + int32_t devfn =3D dev->devfn + vf_offset; uint8_t *cfg =3D dev->config + offset; uint8_t *wmask; =20 @@ -36,7 +50,6 @@ void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, offset, PCI_EXT_CAP_SRIOV_SIZEOF); dev->exp.sriov_cap =3D offset; dev->exp.sriov_pf.num_vfs =3D 0; - dev->exp.sriov_pf.vfname =3D g_strdup(vfname); dev->exp.sriov_pf.vf =3D NULL; =20 pci_set_word(cfg + PCI_SRIOV_VF_OFFSET, vf_offset); @@ -69,13 +82,35 @@ void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, pci_set_word(wmask + PCI_SRIOV_SYS_PGSIZE, 0x553); =20 qdev_prop_set_bit(&dev->qdev, "multifunction", true); + + dev->exp.sriov_pf.vf =3D g_new(PCIDevice *, total_vfs); + + for (uint16_t i =3D 0; i < total_vfs; i++) { + PCIDevice *vf =3D pci_new(devfn, vfname); + vf->exp.sriov_vf.pf =3D dev; + vf->exp.sriov_vf.vf_number =3D i; + + if (!qdev_realize(&vf->qdev, bus, errp)) { + unrealize_vfs(dev, i); + return false; + } + + /* set vid/did according to sr/iov spec - they are not used */ + pci_config_set_vendor_id(vf->config, 0xffff); + pci_config_set_device_id(vf->config, 0xffff); + + dev->exp.sriov_pf.vf[i] =3D vf; + devfn +=3D vf_stride; + } + + return true; } =20 void pcie_sriov_pf_exit(PCIDevice *dev) { - unregister_vfs(dev); - g_free((char *)dev->exp.sriov_pf.vfname); - dev->exp.sriov_pf.vfname =3D NULL; + uint8_t *cfg =3D dev->config + dev->exp.sriov_cap; + + unrealize_vfs(dev, pci_get_word(cfg + PCI_SRIOV_TOTAL_VF)); } =20 void pcie_sriov_pf_init_vf_bar(PCIDevice *dev, int region_num, @@ -141,38 +176,11 @@ void pcie_sriov_vf_register_bar(PCIDevice *dev, int r= egion_num, } } =20 -static PCIDevice *register_vf(PCIDevice *pf, int devfn, const char *name, - uint16_t vf_num) -{ - PCIDevice *dev =3D pci_new(devfn, name); - dev->exp.sriov_vf.pf =3D pf; - dev->exp.sriov_vf.vf_number =3D vf_num; - PCIBus *bus =3D pci_get_bus(pf); - Error *local_err =3D NULL; - - qdev_realize(&dev->qdev, &bus->qbus, &local_err); - if (local_err) { - error_report_err(local_err); - return NULL; - } - - /* set vid/did according to sr/iov spec - they are not used */ - pci_config_set_vendor_id(dev->config, 0xffff); - pci_config_set_device_id(dev->config, 0xffff); - - return dev; -} - static void register_vfs(PCIDevice *dev) { uint16_t num_vfs; uint16_t i; uint16_t sriov_cap =3D dev->exp.sriov_cap; - uint16_t vf_offset =3D - pci_get_word(dev->config + sriov_cap + PCI_SRIOV_VF_OFFSET); - uint16_t vf_stride =3D - pci_get_word(dev->config + sriov_cap + PCI_SRIOV_VF_STRIDE); - int32_t devfn =3D dev->devfn + vf_offset; =20 assert(sriov_cap > 0); num_vfs =3D pci_get_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF); @@ -180,18 +188,10 @@ static void register_vfs(PCIDevice *dev) return; } =20 - dev->exp.sriov_pf.vf =3D g_new(PCIDevice *, num_vfs); - trace_sriov_register_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { - dev->exp.sriov_pf.vf[i] =3D register_vf(dev, devfn, - dev->exp.sriov_pf.vfname, i); - if (!dev->exp.sriov_pf.vf[i]) { - num_vfs =3D i; - break; - } - devfn +=3D vf_stride; + pci_set_enabled(dev->exp.sriov_pf.vf[i], true); } dev->exp.sriov_pf.num_vfs =3D num_vfs; } @@ -204,16 +204,8 @@ static void unregister_vfs(PCIDevice *dev) trace_sriov_unregister_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { - Error *err =3D NULL; - PCIDevice *vf =3D dev->exp.sriov_pf.vf[i]; - if (!object_property_set_bool(OBJECT(vf), "realized", false, &err)= ) { - error_reportf_err(err, "Failed to unplug: "); - } - object_unparent(OBJECT(vf)); - object_unref(OBJECT(vf)); + pci_set_enabled(dev->exp.sriov_pf.vf[i], false); } - g_free(dev->exp.sriov_pf.vf); - dev->exp.sriov_pf.vf =3D NULL; dev->exp.sriov_pf.num_vfs =3D 0; } =20 @@ -235,14 +227,10 @@ void pcie_sriov_config_write(PCIDevice *dev, uint32_t= address, PCI_FUNC(dev->devfn), off, val, len); =20 if (range_covers_byte(off, len, PCI_SRIOV_CTRL)) { - if (dev->exp.sriov_pf.num_vfs) { - if (!(val & PCI_SRIOV_CTRL_VFE)) { - unregister_vfs(dev); - } + if (val & PCI_SRIOV_CTRL_VFE) { + register_vfs(dev); } else { - if (val & PCI_SRIOV_CTRL_VFE) { - register_vfs(dev); - } + unregister_vfs(dev); } } } --=20 2.43.1