From patchwork Mon Jul 8 17:34:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Henrique Barboza X-Patchwork-Id: 13726946 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 9AD4CC3DA42 for ; Mon, 8 Jul 2024 17:37:52 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sQsHE-0006IU-8U; Mon, 08 Jul 2024 13:35:48 -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 1sQsH2-0005t3-MR for qemu-devel@nongnu.org; Mon, 08 Jul 2024 13:35:41 -0400 Received: from mail-pl1-x635.google.com ([2607:f8b0:4864:20::635]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sQsGy-00083q-B1 for qemu-devel@nongnu.org; Mon, 08 Jul 2024 13:35:34 -0400 Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-1f70c457823so17039705ad.3 for ; Mon, 08 Jul 2024 10:35:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1720460130; x=1721064930; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bSV5rwJs1l/4AVT07lE41oPs9+do5UeVJi0VZ15LYnU=; b=ccQpdZjzk3nIFNtUi+amEGIASasBHzLZILKI7dWFbMctJHIGOPK8+PUJz1oFUHBJSO PiR9IbeXGhq8mQLpXXrYq3mUnfs2tksV1D0Au0v+yOVAKHjhG0KvyWkjFpCvM5ghX7db Xss2pB98+RJUNIIff8kdz/TRBJ5D168L20HXgO1ldAU73FCZ1d2XNkga9zr0XCzfdfn8 vRsTdfjxpnDgQ+5j4qtU3V0QgAE/jI+wv9mwxVn9wjcmshyiRd6OOm6sGQGyIQABKQ09 cjj5nOH2szh550NQR9Nx354Wo45pmX80+u3g9IIyBmq7fhqiUq36jcREqNA7Wc6jDd8A PR5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720460130; x=1721064930; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bSV5rwJs1l/4AVT07lE41oPs9+do5UeVJi0VZ15LYnU=; b=wyY8vdNwH+S5cG6shlNObESMAoYo7/X+xfFsKS3g5OcpOr1nr42+mDVLPw3ncfkxoi vKkZL9jS1UuVGOrFZUdJPcYUEKBgeuDH0DQREWC70B+Di3SauEBQRewL7yM9zivQnsdQ UwHeladKvkS54Rb2qXvzm2AE42vagQq3Hd5MYt7Z65PjzsLpQwVLqw0MTGZEopHRAnS2 DGazTfn32envDY96Ft3szzX2gNPman1TkUBpE25/AlwqOfpXRHtQEq+c7SQczDgCLsNw +RxHYmM5Uk9pS0weL7u/xa4w/fnOE6+F5J11Swk1dDp5/AhdSgLEEt/pj40tiibNOdNB YNwg== X-Gm-Message-State: AOJu0Yxt4o4aFNbd2oEwwwloG35T++zsvpwaXGWgf9e5ktKzlMiSEwub H/uHPFMyL3lPDyEzNOmZzsoCCvo64KGtw6lSCYKM1vlUegPr27erIM1ujHZ6V/wVSYNZuYXaxO6 y X-Google-Smtp-Source: AGHT+IFt8DUMlq0xIKksdvztxxnc6TxhAvPq7zjCwadjVGGB9lC7KpUTwFglYkBggMKbOqRL4/3F9g== X-Received: by 2002:a17:902:ec8a:b0:1f9:c3e4:4c0f with SMTP id d9443c01a7336-1fbb6d2a53cmr2141845ad.34.1720460130126; Mon, 08 Jul 2024 10:35:30 -0700 (PDT) Received: from grind.dc1.ventanamicro.com ([179.193.8.43]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fbb6ad3829sm1153765ad.299.2024.07.08.10.35.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jul 2024 10:35:29 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, frank.chang@sifive.com, tjeznach@rivosinc.com, jason.chien@sifive.com, Daniel Henrique Barboza Subject: [PATCH v5 06/13] hw/riscv/virt.c: support for RISC-V IOMMU PCIDevice hotplug Date: Mon, 8 Jul 2024 14:34:53 -0300 Message-ID: <20240708173501.426225-7-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240708173501.426225-1-dbarboza@ventanamicro.com> References: <20240708173501.426225-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x635.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Tomasz Jeznach Generate device tree entry for riscv-iommu PCI device, along with mapping all PCI device identifiers to the single IOMMU device instance. Signed-off-by: Tomasz Jeznach Signed-off-by: Daniel Henrique Barboza Reviewed-by: Frank Chang Reviewed-by: Alistair Francis --- hw/riscv/virt.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index bc0893e087..8da1f1c9e9 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -32,6 +32,7 @@ #include "hw/core/sysbus-fdt.h" #include "target/riscv/pmu.h" #include "hw/riscv/riscv_hart.h" +#include "hw/riscv/iommu.h" #include "hw/riscv/virt.h" #include "hw/riscv/boot.h" #include "hw/riscv/numa.h" @@ -1024,6 +1025,30 @@ static void create_fdt_virtio_iommu(RISCVVirtState *s, uint16_t bdf) bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); } +static void create_fdt_iommu(RISCVVirtState *s, uint16_t bdf) +{ + const char comp[] = "riscv,pci-iommu"; + void *fdt = MACHINE(s)->fdt; + uint32_t iommu_phandle; + g_autofree char *iommu_node = NULL; + g_autofree char *pci_node = NULL; + + pci_node = g_strdup_printf("/soc/pci@%lx", + (long) virt_memmap[VIRT_PCIE_ECAM].base); + iommu_node = g_strdup_printf("%s/iommu@%x", pci_node, bdf); + iommu_phandle = qemu_fdt_alloc_phandle(fdt); + qemu_fdt_add_subnode(fdt, iommu_node); + + qemu_fdt_setprop(fdt, iommu_node, "compatible", comp, sizeof(comp)); + qemu_fdt_setprop_cell(fdt, iommu_node, "#iommu-cells", 1); + qemu_fdt_setprop_cell(fdt, iommu_node, "phandle", iommu_phandle); + qemu_fdt_setprop_cells(fdt, iommu_node, "reg", + bdf << 8, 0, 0, 0, 0); + qemu_fdt_setprop_cells(fdt, pci_node, "iommu-map", + 0, iommu_phandle, 0, bdf, + bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); +} + static void finalize_fdt(RISCVVirtState *s) { uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; @@ -1730,9 +1755,11 @@ static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, MachineClass *mc = MACHINE_GET_CLASS(machine); if (device_is_dynamic_sysbus(mc, dev) || - object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { + object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) || + object_dynamic_cast(OBJECT(dev), TYPE_RISCV_IOMMU_PCI)) { return HOTPLUG_HANDLER(machine); } + return NULL; } @@ -1753,6 +1780,10 @@ static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { create_fdt_virtio_iommu(s, pci_get_bdf(PCI_DEVICE(dev))); } + + if (object_dynamic_cast(OBJECT(dev), TYPE_RISCV_IOMMU_PCI)) { + create_fdt_iommu(s, pci_get_bdf(PCI_DEVICE(dev))); + } } static void virt_machine_class_init(ObjectClass *oc, void *data)