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Tue, 31 Aug 2021 11:06:49 +0000 From: Anup Patel To: Peter Maydell , Palmer Dabbelt , Alistair Francis , Sagar Karandikar Subject: [PATCH v4 3/4] hw/riscv: virt: Re-factor FDT generation Date: Tue, 31 Aug 2021 16:36:02 +0530 Message-Id: <20210831110603.338681-4-anup.patel@wdc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210831110603.338681-1-anup.patel@wdc.com> References: <20210831110603.338681-1-anup.patel@wdc.com> X-ClientProxiedBy: MAXPR01CA0111.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:5d::29) To SJ0PR04MB7821.namprd04.prod.outlook.com (2603:10b6:a03:3ac::8) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from wdc.com (122.171.35.197) by MAXPR01CA0111.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:5d::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4457.18 via Frontend Transport; Tue, 31 Aug 2021 11:06:46 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e8be1085-6ba3-4659-e79b-08d96c6f6dea X-MS-TrafficTypeDiagnostic: SJ0PR04MB7886: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: WDCIPOUTBOUND: EOP-TRUE X-MS-Oob-TLC-OOBClassifiers: OLM:353; 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envelope-from=prvs=870f666b0=Anup.Patel@wdc.com; helo=esa2.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: qemu-riscv@nongnu.org, Anup Patel , Anup Patel , qemu-devel@nongnu.org, Atish Patra , Alistair Francis , Bin Meng Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We re-factor and break the FDT generation into smaller functions so that it is easier to modify FDT generation for different configurations of virt machine. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Bin Meng --- hw/riscv/virt.c | 527 ++++++++++++++++++++++++++++++------------------ 1 file changed, 327 insertions(+), 200 deletions(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 1cd7ac1546..7f716901ef 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -176,214 +176,262 @@ static void create_pcie_irq_map(void *fdt, char *nodename, 0x1800, 0, 0, 0x7); } -static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, - uint64_t mem_size, const char *cmdline, bool is_32_bit) +static void create_fdt_socket_cpus(RISCVVirtState *s, int socket, + char *clust_name, uint32_t *phandle, + bool is_32_bit, uint32_t *intc_phandles) { - void *fdt; - int i, cpu, socket; + int cpu; + uint32_t cpu_phandle; MachineState *mc = MACHINE(s); + char *name, *cpu_name, *core_name, *intc_name; + + for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { + cpu_phandle = (*phandle)++; + + cpu_name = g_strdup_printf("/cpus/cpu@%d", + s->soc[socket].hartid_base + cpu); + qemu_fdt_add_subnode(mc->fdt, cpu_name); + qemu_fdt_setprop_string(mc->fdt, cpu_name, "mmu-type", + (is_32_bit) ? "riscv,sv32" : "riscv,sv48"); + name = riscv_isa_string(&s->soc[socket].harts[cpu]); + qemu_fdt_setprop_string(mc->fdt, cpu_name, "riscv,isa", name); + g_free(name); + qemu_fdt_setprop_string(mc->fdt, cpu_name, "compatible", "riscv"); + qemu_fdt_setprop_string(mc->fdt, cpu_name, "status", "okay"); + qemu_fdt_setprop_cell(mc->fdt, cpu_name, "reg", + s->soc[socket].hartid_base + cpu); + qemu_fdt_setprop_string(mc->fdt, cpu_name, "device_type", "cpu"); + riscv_socket_fdt_write_id(mc, mc->fdt, cpu_name, socket); + qemu_fdt_setprop_cell(mc->fdt, cpu_name, "phandle", cpu_phandle); + + intc_phandles[cpu] = (*phandle)++; + + intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name); + qemu_fdt_add_subnode(mc->fdt, intc_name); + qemu_fdt_setprop_cell(mc->fdt, intc_name, "phandle", + intc_phandles[cpu]); + qemu_fdt_setprop_string(mc->fdt, intc_name, "compatible", + "riscv,cpu-intc"); + qemu_fdt_setprop(mc->fdt, intc_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(mc->fdt, intc_name, "#interrupt-cells", 1); + + core_name = g_strdup_printf("%s/core%d", clust_name, cpu); + qemu_fdt_add_subnode(mc->fdt, core_name); + qemu_fdt_setprop_cell(mc->fdt, core_name, "cpu", cpu_phandle); + + g_free(core_name); + g_free(intc_name); + g_free(cpu_name); + } +} + +static void create_fdt_socket_memory(RISCVVirtState *s, + const MemMapEntry *memmap, int socket) +{ + char *mem_name; uint64_t addr, size; - uint32_t *clint_cells, *plic_cells; - unsigned long clint_addr, plic_addr; - uint32_t plic_phandle[MAX_NODES]; - uint32_t cpu_phandle, intc_phandle, test_phandle; - uint32_t phandle = 1, plic_mmio_phandle = 1; - uint32_t plic_pcie_phandle = 1, plic_virtio_phandle = 1; - char *mem_name, *cpu_name, *core_name, *intc_name; - char *name, *clint_name, *plic_name, *clust_name; - hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; - hwaddr flashbase = virt_memmap[VIRT_FLASH].base; + MachineState *mc = MACHINE(s); + + addr = memmap[VIRT_DRAM].base + riscv_socket_mem_offset(mc, socket); + size = riscv_socket_mem_size(mc, socket); + mem_name = g_strdup_printf("/memory@%lx", (long)addr); + qemu_fdt_add_subnode(mc->fdt, mem_name); + qemu_fdt_setprop_cells(mc->fdt, mem_name, "reg", + addr >> 32, addr, size >> 32, size); + qemu_fdt_setprop_string(mc->fdt, mem_name, "device_type", "memory"); + riscv_socket_fdt_write_id(mc, mc->fdt, mem_name, socket); + g_free(mem_name); +} + +static void create_fdt_socket_clint(RISCVVirtState *s, + const MemMapEntry *memmap, int socket, + uint32_t *intc_phandles) +{ + int cpu; + char *clint_name; + uint32_t *clint_cells; + unsigned long clint_addr; + MachineState *mc = MACHINE(s); static const char * const clint_compat[2] = { "sifive,clint0", "riscv,clint0" }; + + clint_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); + + for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { + clint_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); + clint_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); + clint_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); + clint_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); + } + + clint_addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); + clint_name = g_strdup_printf("/soc/clint@%lx", clint_addr); + qemu_fdt_add_subnode(mc->fdt, clint_name); + qemu_fdt_setprop_string_array(mc->fdt, clint_name, "compatible", + (char **)&clint_compat, + ARRAY_SIZE(clint_compat)); + qemu_fdt_setprop_cells(mc->fdt, clint_name, "reg", + 0x0, clint_addr, 0x0, memmap[VIRT_CLINT].size); + qemu_fdt_setprop(mc->fdt, clint_name, "interrupts-extended", + clint_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); + riscv_socket_fdt_write_id(mc, mc->fdt, clint_name, socket); + g_free(clint_name); + + g_free(clint_cells); +} + +static void create_fdt_socket_plic(RISCVVirtState *s, + const MemMapEntry *memmap, int socket, + uint32_t *phandle, uint32_t *intc_phandles, + uint32_t *plic_phandles) +{ + int cpu; + char *plic_name; + uint32_t *plic_cells; + unsigned long plic_addr; + MachineState *mc = MACHINE(s); static const char * const plic_compat[2] = { "sifive,plic-1.0.0", "riscv,plic0" }; - if (mc->dtb) { - fdt = mc->fdt = load_device_tree(mc->dtb, &s->fdt_size); - if (!fdt) { - error_report("load_device_tree() failed"); - exit(1); - } - goto update_bootargs; - } else { - fdt = mc->fdt = create_device_tree(&s->fdt_size); - if (!fdt) { - error_report("create_device_tree() failed"); - exit(1); - } + plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); + + for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { + plic_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); + plic_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT); + plic_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); + plic_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT); } - qemu_fdt_setprop_string(fdt, "/", "model", "riscv-virtio,qemu"); - qemu_fdt_setprop_string(fdt, "/", "compatible", "riscv-virtio"); - qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); - qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); + plic_phandles[socket] = (*phandle)++; + plic_addr = memmap[VIRT_PLIC].base + (memmap[VIRT_PLIC].size * socket); + plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr); + qemu_fdt_add_subnode(mc->fdt, plic_name); + qemu_fdt_setprop_cell(mc->fdt, plic_name, + "#address-cells", FDT_PLIC_ADDR_CELLS); + qemu_fdt_setprop_cell(mc->fdt, plic_name, + "#interrupt-cells", FDT_PLIC_INT_CELLS); + qemu_fdt_setprop_string_array(mc->fdt, plic_name, "compatible", + (char **)&plic_compat, + ARRAY_SIZE(plic_compat)); + qemu_fdt_setprop(mc->fdt, plic_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop(mc->fdt, plic_name, "interrupts-extended", + plic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); + qemu_fdt_setprop_cells(mc->fdt, plic_name, "reg", + 0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size); + qemu_fdt_setprop_cell(mc->fdt, plic_name, "riscv,ndev", VIRTIO_NDEV); + riscv_socket_fdt_write_id(mc, mc->fdt, plic_name, socket); + qemu_fdt_setprop_cell(mc->fdt, plic_name, "phandle", + plic_phandles[socket]); + g_free(plic_name); + + g_free(plic_cells); +} - qemu_fdt_add_subnode(fdt, "/soc"); - qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); - qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus"); - qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2); - qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2); +static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, + bool is_32_bit, uint32_t *phandle, + uint32_t *irq_mmio_phandle, + uint32_t *irq_pcie_phandle, + uint32_t *irq_virtio_phandle) +{ + int socket; + char *clust_name; + uint32_t *intc_phandles; + MachineState *mc = MACHINE(s); + uint32_t xplic_phandles[MAX_NODES]; - qemu_fdt_add_subnode(fdt, "/cpus"); - qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", + qemu_fdt_add_subnode(mc->fdt, "/cpus"); + qemu_fdt_setprop_cell(mc->fdt, "/cpus", "timebase-frequency", RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ); - qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); - qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); - qemu_fdt_add_subnode(fdt, "/cpus/cpu-map"); + qemu_fdt_setprop_cell(mc->fdt, "/cpus", "#size-cells", 0x0); + qemu_fdt_setprop_cell(mc->fdt, "/cpus", "#address-cells", 0x1); + qemu_fdt_add_subnode(mc->fdt, "/cpus/cpu-map"); for (socket = (riscv_socket_count(mc) - 1); socket >= 0; socket--) { clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); - qemu_fdt_add_subnode(fdt, clust_name); - - plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); - clint_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); - - for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { - cpu_phandle = phandle++; - - cpu_name = g_strdup_printf("/cpus/cpu@%d", - s->soc[socket].hartid_base + cpu); - qemu_fdt_add_subnode(fdt, cpu_name); - if (is_32_bit) { - qemu_fdt_setprop_string(fdt, cpu_name, "mmu-type", "riscv,sv32"); - } else { - qemu_fdt_setprop_string(fdt, cpu_name, "mmu-type", "riscv,sv48"); - } - name = riscv_isa_string(&s->soc[socket].harts[cpu]); - qemu_fdt_setprop_string(fdt, cpu_name, "riscv,isa", name); - g_free(name); - qemu_fdt_setprop_string(fdt, cpu_name, "compatible", "riscv"); - qemu_fdt_setprop_string(fdt, cpu_name, "status", "okay"); - qemu_fdt_setprop_cell(fdt, cpu_name, "reg", - s->soc[socket].hartid_base + cpu); - qemu_fdt_setprop_string(fdt, cpu_name, "device_type", "cpu"); - riscv_socket_fdt_write_id(mc, fdt, cpu_name, socket); - qemu_fdt_setprop_cell(fdt, cpu_name, "phandle", cpu_phandle); - - intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name); - qemu_fdt_add_subnode(fdt, intc_name); - intc_phandle = phandle++; - qemu_fdt_setprop_cell(fdt, intc_name, "phandle", intc_phandle); - qemu_fdt_setprop_string(fdt, intc_name, "compatible", - "riscv,cpu-intc"); - qemu_fdt_setprop(fdt, intc_name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop_cell(fdt, intc_name, "#interrupt-cells", 1); - - clint_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); - clint_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); - clint_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); - clint_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); - - plic_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); - plic_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT); - plic_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); - plic_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT); - - core_name = g_strdup_printf("%s/core%d", clust_name, cpu); - qemu_fdt_add_subnode(fdt, core_name); - qemu_fdt_setprop_cell(fdt, core_name, "cpu", cpu_phandle); - - g_free(core_name); - g_free(intc_name); - g_free(cpu_name); - } + qemu_fdt_add_subnode(mc->fdt, clust_name); + + intc_phandles = g_new0(uint32_t, s->soc[socket].num_harts); + + create_fdt_socket_cpus(s, socket, clust_name, phandle, + is_32_bit, intc_phandles); - addr = memmap[VIRT_DRAM].base + riscv_socket_mem_offset(mc, socket); - size = riscv_socket_mem_size(mc, socket); - mem_name = g_strdup_printf("/memory@%lx", (long)addr); - qemu_fdt_add_subnode(fdt, mem_name); - qemu_fdt_setprop_cells(fdt, mem_name, "reg", - addr >> 32, addr, size >> 32, size); - qemu_fdt_setprop_string(fdt, mem_name, "device_type", "memory"); - riscv_socket_fdt_write_id(mc, fdt, mem_name, socket); - g_free(mem_name); - - clint_addr = memmap[VIRT_CLINT].base + - (memmap[VIRT_CLINT].size * socket); - clint_name = g_strdup_printf("/soc/clint@%lx", clint_addr); - qemu_fdt_add_subnode(fdt, clint_name); - qemu_fdt_setprop_string_array(fdt, clint_name, "compatible", - (char **)&clint_compat, ARRAY_SIZE(clint_compat)); - qemu_fdt_setprop_cells(fdt, clint_name, "reg", - 0x0, clint_addr, 0x0, memmap[VIRT_CLINT].size); - qemu_fdt_setprop(fdt, clint_name, "interrupts-extended", - clint_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); - riscv_socket_fdt_write_id(mc, fdt, clint_name, socket); - g_free(clint_name); - - plic_phandle[socket] = phandle++; - plic_addr = memmap[VIRT_PLIC].base + (memmap[VIRT_PLIC].size * socket); - plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr); - qemu_fdt_add_subnode(fdt, plic_name); - qemu_fdt_setprop_cell(fdt, plic_name, - "#address-cells", FDT_PLIC_ADDR_CELLS); - qemu_fdt_setprop_cell(fdt, plic_name, - "#interrupt-cells", FDT_PLIC_INT_CELLS); - qemu_fdt_setprop_string_array(fdt, plic_name, "compatible", - (char **)&plic_compat, ARRAY_SIZE(plic_compat)); - qemu_fdt_setprop(fdt, plic_name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop(fdt, plic_name, "interrupts-extended", - plic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); - qemu_fdt_setprop_cells(fdt, plic_name, "reg", - 0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size); - qemu_fdt_setprop_cell(fdt, plic_name, "riscv,ndev", VIRTIO_NDEV); - riscv_socket_fdt_write_id(mc, fdt, plic_name, socket); - qemu_fdt_setprop_cell(fdt, plic_name, "phandle", plic_phandle[socket]); - g_free(plic_name); - - g_free(clint_cells); - g_free(plic_cells); + create_fdt_socket_memory(s, memmap, socket); + + create_fdt_socket_clint(s, memmap, socket, intc_phandles); + + create_fdt_socket_plic(s, memmap, socket, phandle, + intc_phandles, xplic_phandles); + + g_free(intc_phandles); g_free(clust_name); } for (socket = 0; socket < riscv_socket_count(mc); socket++) { if (socket == 0) { - plic_mmio_phandle = plic_phandle[socket]; - plic_virtio_phandle = plic_phandle[socket]; - plic_pcie_phandle = plic_phandle[socket]; + *irq_mmio_phandle = xplic_phandles[socket]; + *irq_virtio_phandle = xplic_phandles[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; } if (socket == 1) { - plic_virtio_phandle = plic_phandle[socket]; - plic_pcie_phandle = plic_phandle[socket]; + *irq_virtio_phandle = xplic_phandles[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; } if (socket == 2) { - plic_pcie_phandle = plic_phandle[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; } } - riscv_socket_fdt_write_distance_matrix(mc, fdt); + riscv_socket_fdt_write_distance_matrix(mc, mc->fdt); +} + +static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t irq_virtio_phandle) +{ + int i; + char *name; + MachineState *mc = MACHINE(s); for (i = 0; i < VIRTIO_COUNT; i++) { name = g_strdup_printf("/soc/virtio_mmio@%lx", (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size)); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_string(fdt, name, "compatible", "virtio,mmio"); - qemu_fdt_setprop_cells(fdt, name, "reg", + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", "virtio,mmio"); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 0x0, memmap[VIRT_VIRTIO].size); - qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", - plic_virtio_phandle); - qemu_fdt_setprop_cell(fdt, name, "interrupts", VIRTIO_IRQ + i); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupt-parent", + irq_virtio_phandle); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupts", VIRTIO_IRQ + i); g_free(name); } +} + +static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t irq_pcie_phandle) +{ + char *name; + MachineState *mc = MACHINE(s); name = g_strdup_printf("/soc/pci@%lx", (long) memmap[VIRT_PCIE_ECAM].base); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_cell(fdt, name, "#address-cells", FDT_PCI_ADDR_CELLS); - qemu_fdt_setprop_cell(fdt, name, "#interrupt-cells", FDT_PCI_INT_CELLS); - qemu_fdt_setprop_cell(fdt, name, "#size-cells", 0x2); - qemu_fdt_setprop_string(fdt, name, "compatible", "pci-host-ecam-generic"); - qemu_fdt_setprop_string(fdt, name, "device_type", "pci"); - qemu_fdt_setprop_cell(fdt, name, "linux,pci-domain", 0); - qemu_fdt_setprop_cells(fdt, name, "bus-range", 0, + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_cell(mc->fdt, name, "#address-cells", + FDT_PCI_ADDR_CELLS); + qemu_fdt_setprop_cell(mc->fdt, name, "#interrupt-cells", + FDT_PCI_INT_CELLS); + qemu_fdt_setprop_cell(mc->fdt, name, "#size-cells", 0x2); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", + "pci-host-ecam-generic"); + qemu_fdt_setprop_string(mc->fdt, name, "device_type", "pci"); + qemu_fdt_setprop_cell(mc->fdt, name, "linux,pci-domain", 0); + qemu_fdt_setprop_cells(mc->fdt, name, "bus-range", 0, memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); - qemu_fdt_setprop(fdt, name, "dma-coherent", NULL, 0); - qemu_fdt_setprop_cells(fdt, name, "reg", 0, + qemu_fdt_setprop(mc->fdt, name, "dma-coherent", NULL, 0); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", 0, memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size); - qemu_fdt_setprop_sized_cells(fdt, name, "ranges", + qemu_fdt_setprop_sized_cells(mc->fdt, name, "ranges", 1, FDT_PCI_RANGE_IOPORT, 2, 0, 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 1, FDT_PCI_RANGE_MMIO, @@ -393,66 +441,96 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); - create_pcie_irq_map(fdt, name, plic_pcie_phandle); + create_pcie_irq_map(mc->fdt, name, irq_pcie_phandle); g_free(name); +} - test_phandle = phandle++; +static void create_fdt_reset(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t *phandle) +{ + char *name; + uint32_t test_phandle; + MachineState *mc = MACHINE(s); + + test_phandle = (*phandle)++; name = g_strdup_printf("/soc/test@%lx", (long)memmap[VIRT_TEST].base); - qemu_fdt_add_subnode(fdt, name); + qemu_fdt_add_subnode(mc->fdt, name); { static const char * const compat[3] = { "sifive,test1", "sifive,test0", "syscon" }; - qemu_fdt_setprop_string_array(fdt, name, "compatible", (char **)&compat, - ARRAY_SIZE(compat)); + qemu_fdt_setprop_string_array(mc->fdt, name, "compatible", + (char **)&compat, ARRAY_SIZE(compat)); } - qemu_fdt_setprop_cells(fdt, name, "reg", - 0x0, memmap[VIRT_TEST].base, - 0x0, memmap[VIRT_TEST].size); - qemu_fdt_setprop_cell(fdt, name, "phandle", test_phandle); - test_phandle = qemu_fdt_get_phandle(fdt, name); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", + 0x0, memmap[VIRT_TEST].base, 0x0, memmap[VIRT_TEST].size); + qemu_fdt_setprop_cell(mc->fdt, name, "phandle", test_phandle); + test_phandle = qemu_fdt_get_phandle(mc->fdt, name); g_free(name); name = g_strdup_printf("/soc/reboot"); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_string(fdt, name, "compatible", "syscon-reboot"); - qemu_fdt_setprop_cell(fdt, name, "regmap", test_phandle); - qemu_fdt_setprop_cell(fdt, name, "offset", 0x0); - qemu_fdt_setprop_cell(fdt, name, "value", FINISHER_RESET); + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", "syscon-reboot"); + qemu_fdt_setprop_cell(mc->fdt, name, "regmap", test_phandle); + qemu_fdt_setprop_cell(mc->fdt, name, "offset", 0x0); + qemu_fdt_setprop_cell(mc->fdt, name, "value", FINISHER_RESET); g_free(name); name = g_strdup_printf("/soc/poweroff"); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_string(fdt, name, "compatible", "syscon-poweroff"); - qemu_fdt_setprop_cell(fdt, name, "regmap", test_phandle); - qemu_fdt_setprop_cell(fdt, name, "offset", 0x0); - qemu_fdt_setprop_cell(fdt, name, "value", FINISHER_PASS); + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", "syscon-poweroff"); + qemu_fdt_setprop_cell(mc->fdt, name, "regmap", test_phandle); + qemu_fdt_setprop_cell(mc->fdt, name, "offset", 0x0); + qemu_fdt_setprop_cell(mc->fdt, name, "value", FINISHER_PASS); g_free(name); +} + +static void create_fdt_uart(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t irq_mmio_phandle) +{ + char *name; + MachineState *mc = MACHINE(s); name = g_strdup_printf("/soc/uart@%lx", (long)memmap[VIRT_UART0].base); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_string(fdt, name, "compatible", "ns16550a"); - qemu_fdt_setprop_cells(fdt, name, "reg", + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", "ns16550a"); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", 0x0, memmap[VIRT_UART0].base, 0x0, memmap[VIRT_UART0].size); - qemu_fdt_setprop_cell(fdt, name, "clock-frequency", 3686400); - qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", plic_mmio_phandle); - qemu_fdt_setprop_cell(fdt, name, "interrupts", UART0_IRQ); + qemu_fdt_setprop_cell(mc->fdt, name, "clock-frequency", 3686400); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupt-parent", irq_mmio_phandle); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupts", UART0_IRQ); - qemu_fdt_add_subnode(fdt, "/chosen"); - qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", name); + qemu_fdt_add_subnode(mc->fdt, "/chosen"); + qemu_fdt_setprop_string(mc->fdt, "/chosen", "stdout-path", name); g_free(name); +} + +static void create_fdt_rtc(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t irq_mmio_phandle) +{ + char *name; + MachineState *mc = MACHINE(s); name = g_strdup_printf("/soc/rtc@%lx", (long)memmap[VIRT_RTC].base); - qemu_fdt_add_subnode(fdt, name); - qemu_fdt_setprop_string(fdt, name, "compatible", "google,goldfish-rtc"); - qemu_fdt_setprop_cells(fdt, name, "reg", - 0x0, memmap[VIRT_RTC].base, - 0x0, memmap[VIRT_RTC].size); - qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", plic_mmio_phandle); - qemu_fdt_setprop_cell(fdt, name, "interrupts", RTC_IRQ); + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", + "google,goldfish-rtc"); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", + 0x0, memmap[VIRT_RTC].base, 0x0, memmap[VIRT_RTC].size); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupt-parent", + irq_mmio_phandle); + qemu_fdt_setprop_cell(mc->fdt, name, "interrupts", RTC_IRQ); g_free(name); +} + +static void create_fdt_flash(RISCVVirtState *s, const MemMapEntry *memmap) +{ + char *name; + MachineState *mc = MACHINE(s); + hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; + hwaddr flashbase = virt_memmap[VIRT_FLASH].base; name = g_strdup_printf("/flash@%" PRIx64, flashbase); qemu_fdt_add_subnode(mc->fdt, name); @@ -462,10 +540,59 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, 2, flashbase + flashsize, 2, flashsize); qemu_fdt_setprop_cell(mc->fdt, name, "bank-width", 4); g_free(name); +} + +static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, + uint64_t mem_size, const char *cmdline, bool is_32_bit) +{ + MachineState *mc = MACHINE(s); + uint32_t phandle = 1, irq_mmio_phandle = 1; + uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; + + if (mc->dtb) { + mc->fdt = load_device_tree(mc->dtb, &s->fdt_size); + if (!mc->fdt) { + error_report("load_device_tree() failed"); + exit(1); + } + goto update_bootargs; + } else { + mc->fdt = create_device_tree(&s->fdt_size); + if (!mc->fdt) { + error_report("create_device_tree() failed"); + exit(1); + } + } + + qemu_fdt_setprop_string(mc->fdt, "/", "model", "riscv-virtio,qemu"); + qemu_fdt_setprop_string(mc->fdt, "/", "compatible", "riscv-virtio"); + qemu_fdt_setprop_cell(mc->fdt, "/", "#size-cells", 0x2); + qemu_fdt_setprop_cell(mc->fdt, "/", "#address-cells", 0x2); + + qemu_fdt_add_subnode(mc->fdt, "/soc"); + qemu_fdt_setprop(mc->fdt, "/soc", "ranges", NULL, 0); + qemu_fdt_setprop_string(mc->fdt, "/soc", "compatible", "simple-bus"); + qemu_fdt_setprop_cell(mc->fdt, "/soc", "#size-cells", 0x2); + qemu_fdt_setprop_cell(mc->fdt, "/soc", "#address-cells", 0x2); + + create_fdt_sockets(s, memmap, is_32_bit, &phandle, + &irq_mmio_phandle, &irq_pcie_phandle, &irq_virtio_phandle); + + create_fdt_virtio(s, memmap, irq_virtio_phandle); + + create_fdt_pcie(s, memmap, irq_pcie_phandle); + + create_fdt_reset(s, memmap, &phandle); + + create_fdt_uart(s, memmap, irq_mmio_phandle); + + create_fdt_rtc(s, memmap, irq_mmio_phandle); + + create_fdt_flash(s, memmap); update_bootargs: if (cmdline) { - qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); + qemu_fdt_setprop_string(mc->fdt, "/chosen", "bootargs", cmdline); } }