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[200.206.229.93]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20b37d63971sm76061295ad.4.2024.10.01.18.03.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2024 18:03:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1727831023; x=1728435823; 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=7ndBHKwItEhsPkfiyUgybvSezK7tLcoBFEu2cfVadMc=; b=ov1FNUdouMa/VYh0q6C3RdhG7LZ7Y+cgT2q8VL3yiFQMOCcTVTZgeuIbVzA1YGtU9P KxFsloALVJUgbZVazCHRrmGkoo/ZhuOwsprCGm3ur4VWUQi4fVrCJ1XtgDol8gIiY10E yLuaKaulEen7Crxy/BYC7JJMTI1zSQudyHGxXwyDrP1jJTSYYrv/OdLwGzV8b6NnXCTk OMS5Bn0CR/PuKzDZ+1qumrAB7P9OBlqRL/33BeJxTgrDyUpSPjnfpkCkEZe2vRSehiit pK58yWCEn4d1WIU/RBQgiru7owasy055rHIrZ3WavTcRBCzU/lN78OtRLtNHGOgd48L3 dDEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727831023; x=1728435823; 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=7ndBHKwItEhsPkfiyUgybvSezK7tLcoBFEu2cfVadMc=; b=RKojMw192nTu1rz3nCLW3VKHLdPpFM+b56RMcLzNeS38ih87Zp7hl+X8vRWCXGv+jg L9iFTpsazTPVqPNRG3yaGAa51C8iL7lTzE6ISFZCt/+0Kx8tv3HoeAKNoEJwfM7QGc2d C+AjmAR81EBtS0vfza2tn/1s6YvTkStfPGYATWz4DhMnFBO4MfNAYqB4Vtt++ZUKl4xm kifxgPxozjUrBNdks9OJcOOn29cDDyaEFivf7ipKa5wrQmB6TQ8nfbMj6igHxrGdoQkC L/e8/leiTFNCmtkYffYMVLQBEp/VpcBIBpo8KjFylGcQP7VKlZnaUT1732AIHx/Nuidg 61iw== X-Gm-Message-State: AOJu0YzzhdBoauV3TTcbfZkA9AIpL5LGTo5lXs/2BdUJyMPHbnw3dRde phoZFRAKEmjnqBA9DvTshHyskxs/cSPtYk+DkwRPvCe5G1r6pnE7Y2cIVGgppoK7vPbFcbLpRVz R X-Google-Smtp-Source: AGHT+IHRf2KFNvBcvmIMOOJFj7ngfRf3VEMlOyrwxMko+j1LSZCt9pMmChu6z9MtrOeno75qtHyCWw== X-Received: by 2002:a17:902:d2cf:b0:20b:775f:505c with SMTP id d9443c01a7336-20bc5a688abmr18425725ad.52.1727831023350; Tue, 01 Oct 2024 18:03:43 -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, peter.maydell@linaro.org, Tomasz Jeznach , Daniel Henrique Barboza , Frank Chang Subject: [PATCH v8 06/12] hw/riscv/virt.c: support for RISC-V IOMMU PCIDevice hotplug Date: Tue, 1 Oct 2024 22:03:01 -0300 Message-ID: <20241002010314.1928515-7-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241002010314.1928515-1-dbarboza@ventanamicro.com> References: <20241002010314.1928515-1-dbarboza@ventanamicro.com> 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=2607:f8b0:4864:20::62e; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x62e.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ventanamicro.com) X-ZM-MESSAGEID: 1727831170758116600 Content-Type: text/plain; charset="utf-8" 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 cef41c150a..63d553ac98 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" @@ -1032,6 +1033,30 @@ static void create_fdt_virtio_iommu(RISCVVirtState *= s, uint16_t bdf) bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); } =20 +static void create_fdt_iommu(RISCVVirtState *s, uint16_t bdf) +{ + const char comp[] =3D "riscv,pci-iommu"; + void *fdt =3D MACHINE(s)->fdt; + uint32_t iommu_phandle; + g_autofree char *iommu_node =3D NULL; + g_autofree char *pci_node =3D NULL; + + pci_node =3D g_strdup_printf("/soc/pci@%lx", + (long) virt_memmap[VIRT_PCIE_ECAM].base); + iommu_node =3D g_strdup_printf("%s/iommu@%x", pci_node, bdf); + iommu_phandle =3D 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 =3D 1, irq_mmio_phandle =3D 1, msi_pcie_phandle =3D 1; @@ -1738,9 +1763,11 @@ static HotplugHandler *virt_machine_get_hotplug_hand= ler(MachineState *machine, MachineClass *mc =3D MACHINE_GET_CLASS(machine); =20 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; } =20 @@ -1761,6 +1788,10 @@ static void virt_machine_device_plug_cb(HotplugHandl= er *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))); + } } =20 static void virt_machine_class_init(ObjectClass *oc, void *data) --=20 2.45.2