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[88.29.179.57]) by smtp.gmail.com with ESMTPSA id a10-20020a5d508a000000b002c54241b4fesm13559015wrt.80.2023.03.07.16.08.11 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 07 Mar 2023 16:08:11 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Jiaxun Yang Cc: Thomas Huth , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH v3 4/4] hw/mips: Add MIPS virt board Date: Wed, 8 Mar 2023 01:07:45 +0100 Message-Id: <20230308000745.56394-5-philmd@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230308000745.56394-1-philmd@linaro.org> References: <20230308000745.56394-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::436; envelope-from=philmd@linaro.org; helo=mail-wr1-x436.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=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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org From: Jiaxun Yang MIPS virt board is design to utilize existing VirtIO infrastures but also comptitable with MIPS's existing internal simulation tools. It includes virtio-pci, virtio-mmio, pcie gpex, flash rom, fw_cfg, goldfish-rtc and MIPS CPS system. It should be able to cooperate with any MIPS CPU cores. Signed-off-by: Jiaxun Yang Message-Id: <20230304223803.55764-3-jiaxun.yang@flygoat.com> [PMD: Do not select PCI in Kconfig, compile virt.o using fdt flags in meson.build, use HWADDR_PRIx, name MachineState var 'ms', declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE(), declare machine type using DEFINE_TYPES(), fix checkpatch.pl style violations, fix patch conflict in docs/system/target-mips.rst, set CPS 'num-vp' property instead of 'num-core'] Signed-off-by: Philippe Mathieu-Daudé --- MAINTAINERS | 7 + configs/devices/mips-softmmu/common.mak | 1 + docs/system/target-mips.rst | 22 + hw/mips/Kconfig | 16 + hw/mips/meson.build | 1 + hw/mips/virt.c | 913 ++++++++++++++++++++++++ 6 files changed, 960 insertions(+) create mode 100644 hw/mips/virt.c diff --git a/MAINTAINERS b/MAINTAINERS index 5340de0515..8462918d65 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1295,6 +1295,13 @@ F: hw/mips/boston.c F: hw/pci-host/xilinx-pcie.c F: include/hw/pci-host/xilinx-pcie.h +Virt +M: Jiaxun Yang +S: Maintained +F: hw/mips/virt.c +F: hw/misc/mips_trickbox.c +F: include/hw/misc/mips_trickbox.h + OpenRISC Machines ----------------- or1k-sim diff --git a/configs/devices/mips-softmmu/common.mak b/configs/devices/mips-softmmu/common.mak index 7da99327a7..eb2c32b7c1 100644 --- a/configs/devices/mips-softmmu/common.mak +++ b/configs/devices/mips-softmmu/common.mak @@ -24,6 +24,7 @@ CONFIG_I8259=y CONFIG_MC146818RTC=y CONFIG_MIPS_CPS=y CONFIG_MIPS_ITU=y +CONFIG_MIPS_VIRT=y CONFIG_MALTA=y CONFIG_PCNET_PCI=y CONFIG_MIPSSIM=y diff --git a/docs/system/target-mips.rst b/docs/system/target-mips.rst index 83239fb9df..8af0adfd08 100644 --- a/docs/system/target-mips.rst +++ b/docs/system/target-mips.rst @@ -8,6 +8,8 @@ endian options, ``qemu-system-mips``, ``qemu-system-mipsel`` ``qemu-system-mips64`` and ``qemu-system-mips64el``. Five different machine types are emulated: +- Generic Virtual Platform \"virt\" + - The MIPS Malta prototype board \"malta\" - An ACER Pica \"pica61\". This machine needs the 64-bit emulator. @@ -17,6 +19,26 @@ machine types are emulated: - A MIPS Magnum R4000 machine \"magnum\". This machine needs the 64-bit emulator. +The virt machine supports the following devices: + +- A range of MIPS CPUs, default is the P5600 (32-bit) or I6400 (64-bit) + +- MIPS CM (Coherence Manager) + +- CFI parallel NOR flash memory + +- 1 NS16550 compatible UART + +- 1 Google Goldfish RTC + +- 1 MIPS Trickbox device + +- 8 virtio-mmio transport devices + +- 1 generic PCIe host bridge + +- The fw_cfg device that allows a guest to obtain data from QEMU + The Malta emulation supports the following devices: - Core board with MIPS 24Kf CPU and Galileo system controller diff --git a/hw/mips/Kconfig b/hw/mips/Kconfig index da3a37e215..c250d5d5d0 100644 --- a/hw/mips/Kconfig +++ b/hw/mips/Kconfig @@ -59,5 +59,21 @@ config MIPS_BOSTON select AHCI_ICH9 select SERIAL +config MIPS_VIRT + bool + imply PCI_DEVICES + imply VIRTIO_VGA + imply TEST_DEVICES + select MIPS_CPS + select MIPS_TRICKBOX + select SERIAL + select FW_CFG_MIPS + select GOLDFISH_RTC + select PCI_EXPRESS_GENERIC_BRIDGE + select PFLASH_CFI01 + select VIRTIO_MMIO + select FW_CFG_DMA + select PLATFORM_BUS + config FW_CFG_MIPS bool diff --git a/hw/mips/meson.build b/hw/mips/meson.build index 900613fc08..a5a6c64a06 100644 --- a/hw/mips/meson.build +++ b/hw/mips/meson.build @@ -1,6 +1,7 @@ mips_ss = ss.source_set() mips_ss.add(files('bootloader.c', 'mips_int.c')) mips_ss.add(when: 'CONFIG_FW_CFG_MIPS', if_true: files('fw_cfg.c')) +mips_ss.add(when: 'CONFIG_MIPS_VIRT', if_true: [files('virt.c'), fdt]) mips_ss.add(when: 'CONFIG_LOONGSON3V', if_true: files('loongson3_bootp.c', 'loongson3_virt.c')) mips_ss.add(when: 'CONFIG_MALTA', if_true: files('malta.c')) mips_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files('cps.c')) diff --git a/hw/mips/virt.c b/hw/mips/virt.c new file mode 100644 index 0000000000..164387ca64 --- /dev/null +++ b/hw/mips/virt.c @@ -0,0 +1,913 @@ +/* + * QEMU MIPS Virt Board + * + * Copyright (C) 2022 Jiaxun Yang + * + * SPDX-License-Identifier: LGPL-2.1-or-later + */ + +#include "qemu/osdep.h" +#include "qemu/units.h" +#include "qemu/datadir.h" + +#include "chardev/char.h" +#include "hw/block/flash.h" +#include "hw/boards.h" +#include "hw/char/serial.h" +#include "hw/core/sysbus-fdt.h" +#include "hw/display/ramfb.h" +#include "hw/intc/goldfish_pic.h" +#include "hw/loader-fit.h" +#include "hw/loader.h" +#include "hw/mips/bootloader.h" +#include "hw/mips/cps.h" +#include "hw/mips/cpudevs.h" +#include "hw/mips/mips.h" +#include "hw/misc/mips_trickbox.h" +#include "hw/pci-host/gpex.h" +#include "hw/pci/pci.h" +#include "hw/platform-bus.h" +#include "hw/qdev-clock.h" +#include "hw/qdev-properties.h" +#include "hw/rtc/goldfish_rtc.h" +#include "hw/sysbus.h" +#include "qapi/error.h" +#include "qemu/error-report.h" +#include "qemu/guest-random.h" +#include "qemu/log.h" +#include "sysemu/device_tree.h" +#include "sysemu/kvm.h" +#include "sysemu/qtest.h" +#include "sysemu/reset.h" +#include "sysemu/runstate.h" +#include "sysemu/sysemu.h" +#include "sysemu/tcg.h" +#include "sysemu/tpm.h" +#include "elf.h" + +#include "qom/object.h" +#include + +#define TYPE_MIPS_VIRT_MACHINE MACHINE_TYPE_NAME("virt") +OBJECT_DECLARE_SIMPLE_TYPE(MIPSVirtState, MIPS_VIRT_MACHINE) + +#define FDT_IRQ_TYPE_NONE 0 +#define FDT_IRQ_TYPE_LEVEL_HIGH 4 +#define FDT_GIC_SHARED 0 +#define FDT_GIC_LOCAL 1 +#define FDT_VIRT_CLK_SYS 1 +#define FDT_VIRT_CLK_CPU 2 +#define FDT_PCI_IRQ_MAP_PINS 4 +#define FDT_PCI_IRQ_MAP_DESCS 6 + +#define FDT_PCI_ADDR_CELLS 3 +#define FDT_PCI_INT_CELLS 1 +#define FDT_MAX_INT_CELLS 3 +#define FDT_MAX_INT_MAP_WIDTH \ + (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + FDT_MAX_INT_CELLS) + +#define VIRT_CPU_REF_CLK_FREQ 100000000 + +struct MIPSVirtState { + MachineState parent; + + Notifier machine_done; + Clock *cpuclk; + DeviceState *platform_bus_dev; + MIPSCPSState *cps; + DeviceState *pic; + PFlashCFI01 *flash; + MemoryRegion *rom; + FWCfgState *fw_cfg; + int fdt_size; +}; + +enum { + VIRT_LOMEM, + VIRT_ROM, + VIRT_FLASH, + VIRT_PLATFORM_BUS, + VIRT_CM, + VIRT_GIC, + VIRT_CDMM, + VIRT_CPC, + VIRT_PCIE_PIO, + VIRT_PCIE_ECAM, + VIRT_ROM_BOOT, + VIRT_FW_CFG, + VIRT_RTC, + VIRT_VIRTIO, + VIRT_UART0, + VIRT_TRICKBOX, + VIRT_PCIE_MMIO, + VIRT_HIGHMEM, +}; + +static const MemMapEntry virt_memmap[] = { + [VIRT_LOMEM] = { 0x0, 0x10000000 }, + [VIRT_ROM] = { 0x10000000, 0x2000000 }, + [VIRT_FLASH] = { 0x12000000, 0x2000000 }, + [VIRT_PLATFORM_BUS] = { 0x14000000, 0x2000000 }, + /* CPC CM GCRs */ + [VIRT_CM] = { 0x16100000, 0x20000 }, + [VIRT_GIC] = { 0x16120000, 0x20000 }, + [VIRT_CDMM] = { 0x16140000, 0x8000 }, + [VIRT_CPC] = { 0x16148000, 0x8000 }, + /* Leave some space for CM GCR growth */ + [VIRT_PCIE_PIO] = { 0x1a000000, 0x10000 }, + [VIRT_PCIE_ECAM] = { 0x1b000000, 0x1000000 }, + [VIRT_ROM_BOOT] = { 0x1fc00000, 0x300000 }, + [VIRT_FW_CFG] = { 0x1ff00000, 0x100 }, + [VIRT_RTC] = { 0x1ff01000, 0x100 }, + [VIRT_VIRTIO] = { 0x1ff02000, 0x1000 }, /* 8 * virtio */ + /* Align with MIPS AVP UART and Trickbox position */ + [VIRT_UART0] = { 0x1ffff000, 0x100 }, + [VIRT_TRICKBOX] = { 0x1fffff00, 0x100 }, + [VIRT_PCIE_MMIO] = { 0x20000000, 0x20000000 }, + [VIRT_HIGHMEM] = { 0x40000000, 0x0 }, /* Variable */ +}; + +enum { + UART0_IRQ = 0, + RTC_IRQ = 1, + PCIE_IRQ = 2, + VIRTIO_IRQ = 7, + VIRTIO_COUNT = 8, + VIRT_PLATFORM_BUS_IRQ = 16, +}; + +#define VIRT_PLATFORM_BUS_NUM_IRQS 16 + +static void create_fdt_hypervisor(MIPSVirtState *s) +{ + MachineState *ms = MACHINE(s); + + qemu_fdt_add_subnode(ms->fdt, "/hypervisor"); + if (kvm_enabled()) { + qemu_fdt_setprop_string(ms->fdt, "/hypervisor", "compatible", + "linux,kvm"); + } else if (tcg_enabled()) { + qemu_fdt_setprop_string(ms->fdt, "/hypervisor", "compatible", + "qemu,tcg"); + } +} + +static void create_fdt_memory(MIPSVirtState *s, const MemMapEntry *memmap) +{ + MachineState *ms = MACHINE(s); + char *name; + + name = g_strdup_printf("/memory@0"); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "device_type", "memory"); + qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 2, + memmap[VIRT_LOMEM].base, 2, + MIN(memmap[VIRT_LOMEM].size, ms->ram_size)); + g_free(name); + + if (ms->ram_size > memmap[VIRT_LOMEM].size) { + name = g_strdup_printf("/memory@%" HWADDR_PRIx, + memmap[VIRT_HIGHMEM].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "device_type", "memory"); + qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 2, + memmap[VIRT_HIGHMEM].base, 2, + ms->ram_size - memmap[VIRT_LOMEM].size); + g_free(name); + } +} + +static void create_fdt_cpc(MIPSVirtState *s, const MemMapEntry *memmap, + uint32_t clk_ph, uint32_t irq_ph) +{ + MachineState *ms = MACHINE(s); + char *name, *gic_name; + + /* GIC with it's timer node */ + gic_name = g_strdup_printf("/soc/interrupt-controller@%" HWADDR_PRIx, + memmap[VIRT_GIC].base); + qemu_fdt_add_subnode(ms->fdt, gic_name); + qemu_fdt_setprop_string(ms->fdt, gic_name, "compatible", "mti,gic"); + qemu_fdt_setprop_cells(ms->fdt, gic_name, "reg", 0x0, memmap[VIRT_GIC].base, + 0x0, memmap[VIRT_GIC].size); + qemu_fdt_setprop(ms->fdt, gic_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, gic_name, "#interrupt-cells", 3); + qemu_fdt_setprop_cell(ms->fdt, gic_name, "phandle", irq_ph); + + name = g_strdup_printf("%s/timer", gic_name); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "mti,gic-timer"); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", FDT_GIC_LOCAL, 1, + FDT_IRQ_TYPE_NONE); + qemu_fdt_setprop_cell(ms->fdt, name, "clocks", clk_ph); + g_free(name); + g_free(gic_name); + + /* CM node */ + name = g_strdup_printf("/soc/cm@%" HWADDR_PRIx, memmap[VIRT_CM].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "mti,mips-cm"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_CM].base, + 0x0, memmap[VIRT_CM].size); + g_free(name); + + /* CDMM node */ + name = g_strdup_printf("/soc/cdmm@%" HWADDR_PRIx, memmap[VIRT_CDMM].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "mti,mips-cdmm"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_CDMM].base, + 0x0, memmap[VIRT_CDMM].size); + g_free(name); + + /* CPC node */ + name = g_strdup_printf("/soc/cpc@%" HWADDR_PRIx, memmap[VIRT_CPC].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "mti,mips-cpc"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_CPC].base, + 0x0, memmap[VIRT_CPC].size); + g_free(name); +} + +static void create_fdt_virtio(MIPSVirtState *s, const MemMapEntry *memmap, + uint32_t irq_ph) +{ + int i; + hwaddr addr; + char *name; + MachineState *ms = MACHINE(s); + + for (i = 0; i < VIRTIO_COUNT; i++) { + addr = memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size; + name = g_strdup_printf("/soc/virtio_mmio@%" HWADDR_PRIx, addr); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "virtio,mmio"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, addr, + 0x0, memmap[VIRT_VIRTIO].size); + qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_ph); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", FDT_GIC_SHARED, + VIRTIO_IRQ + i, FDT_IRQ_TYPE_LEVEL_HIGH); + g_free(name); + } +} + +static void create_pcie_irq_map(MIPSVirtState *s, void *fdt, char *nodename, + uint32_t irq_ph) +{ + int pin, dev; + uint32_t irq_map_stride = 0; + uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS + * FDT_MAX_INT_MAP_WIDTH] = {}; + uint32_t *irq_map = full_irq_map; + + /* + * This code creates a standard swizzle of interrupts such that + * each device's first interrupt is based on it's PCI_SLOT number. + * (See pci_swizzle_map_irq_fn()) + * + * We only need one entry per interrupt in the table (not one per + * possible slot) seeing the interrupt-map-mask will allow the table + * to wrap to any number of devices. + */ + for (dev = 0; dev < GPEX_NUM_IRQS; dev++) { + int devfn = dev * 0x8; + + for (pin = 0; pin < GPEX_NUM_IRQS; pin++) { + int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); + int i = 0; + + /* Fill PCI address cells */ + irq_map[i] = cpu_to_be32(devfn << 8); + i += FDT_PCI_ADDR_CELLS; + + /* Fill PCI Interrupt cells */ + irq_map[i] = cpu_to_be32(pin + 1); + i += FDT_PCI_INT_CELLS; + + /* Fill interrupt controller phandle and cells */ + irq_map[i++] = cpu_to_be32(irq_ph); + irq_map[i++] = cpu_to_be32(FDT_GIC_SHARED); + + irq_map[i++] = cpu_to_be32(irq_nr); + irq_map[i++] = cpu_to_be32(FDT_IRQ_TYPE_LEVEL_HIGH); + + if (!irq_map_stride) { + irq_map_stride = i; + } + irq_map += irq_map_stride; + } + } + + qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, + GPEX_NUM_IRQS * GPEX_NUM_IRQS * irq_map_stride + * sizeof(uint32_t)); + + qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", + 0x1800, 0, 0, 0x7); +} + +static void create_fdt_pcie(MIPSVirtState *s, const MemMapEntry *memmap, + uint32_t irq_ph) +{ + char *name; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/pci@%" HWADDR_PRIx, + memmap[VIRT_PCIE_ECAM].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_cell(ms->fdt, name, "#address-cells", FDT_PCI_ADDR_CELLS); + qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", FDT_PCI_INT_CELLS); + qemu_fdt_setprop_cell(ms->fdt, name, "#size-cells", 0x2); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", + "pci-host-ecam-generic"); + qemu_fdt_setprop_string(ms->fdt, name, "device_type", "pci"); + qemu_fdt_setprop_cell(ms->fdt, name, "linux,pci-domain", 0); + qemu_fdt_setprop_cells(ms->fdt, name, "bus-range", 0, + memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN + - 1); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0, memmap[VIRT_PCIE_ECAM].base, + 0, memmap[VIRT_PCIE_ECAM].size); + qemu_fdt_setprop_sized_cells( + ms->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, 2, memmap[VIRT_PCIE_MMIO].base, 2, + memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size); + + create_pcie_irq_map(s, ms->fdt, name, irq_ph); + g_free(name); +} + +static void create_fdt_uart(MIPSVirtState *s, const MemMapEntry *memmap, + uint32_t irq_ph) +{ + char *name; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/serial@%" HWADDR_PRIx, + memmap[VIRT_UART0].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_UART0].base, + 0x0, memmap[VIRT_UART0].size); + qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400); + qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_ph); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", + FDT_GIC_SHARED, UART0_IRQ, FDT_IRQ_TYPE_LEVEL_HIGH); + + qemu_fdt_add_subnode(ms->fdt, "/chosen"); + qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name); + g_free(name); +} + +static void create_fdt_rtc(MIPSVirtState *s, const MemMapEntry *memmap, + uint32_t irq_ph) +{ + char *name; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/rtc@%" HWADDR_PRIx, memmap[VIRT_RTC].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "google,goldfish-rtc"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_RTC].base, + 0x0, memmap[VIRT_RTC].size); + qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_ph); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", FDT_GIC_SHARED, + RTC_IRQ, FDT_IRQ_TYPE_LEVEL_HIGH); + g_free(name); +} + +static void create_fdt_reset(MIPSVirtState *s, const MemMapEntry *memmap) +{ + char *name; + uint32_t syscon_ph; + MachineState *ms = MACHINE(s); + static const char *const compat[2] = { "mips,trickbox", "syscon" }; + + syscon_ph = qemu_fdt_alloc_phandle(ms->fdt); + name = g_strdup_printf("/soc/trickbox@%" HWADDR_PRIx, + memmap[VIRT_TRICKBOX].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string_array(ms->fdt, name, "compatible", + (char **)&compat, ARRAY_SIZE(compat)); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, + memmap[VIRT_TRICKBOX].base, 0x0, + memmap[VIRT_TRICKBOX].size); + qemu_fdt_setprop_cell(ms->fdt, name, "phandle", syscon_ph); + g_free(name); + + name = g_strdup_printf("/reboot"); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot"); + qemu_fdt_setprop_cell(ms->fdt, name, "regmap", syscon_ph); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", REG_SIM_CMD); + qemu_fdt_setprop_cell(ms->fdt, name, "value", TRICK_RESET); + g_free(name); + + name = g_strdup_printf("/poweroff"); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff"); + qemu_fdt_setprop_cell(ms->fdt, name, "regmap", syscon_ph); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", REG_SIM_CMD); + qemu_fdt_setprop_cell(ms->fdt, name, "value", TRICK_HALT); + g_free(name); +} + +static void create_fdt_flash(MIPSVirtState *s, const MemMapEntry *memmap) +{ + char *name; + MachineState *ms = MACHINE(s); + hwaddr flashsize = virt_memmap[VIRT_FLASH].size; + hwaddr flashbase = virt_memmap[VIRT_FLASH].base; + + name = g_strdup_printf("/flash@%" PRIx64, flashbase); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "cfi-flash"); + qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 2, flashbase, 2, + flashsize); + qemu_fdt_setprop_cell(ms->fdt, name, "bank-width", 4); + g_free(name); +} + +static void create_fdt_fw_cfg(MIPSVirtState *s, const MemMapEntry *memmap) +{ + char *nodename; + MachineState *ms = MACHINE(s); + hwaddr base = memmap[VIRT_FW_CFG].base; + hwaddr size = memmap[VIRT_FW_CFG].size; + + nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, + "compatible", "qemu,fw-cfg-mmio"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); + g_free(nodename); +} + +static void create_fdt(MIPSVirtState *s, const MemMapEntry *memmap, + const char *cmdline) +{ + MachineState *ms = MACHINE(s); + uint32_t clk_ph, irq_ph; + uint8_t rng_seed[32]; + + if (ms->dtb) { + ms->fdt = load_device_tree(ms->dtb, &s->fdt_size); + if (!ms->fdt) { + error_report("load_device_tree() failed"); + exit(1); + } + goto update_bootargs; + } else { + ms->fdt = create_device_tree(&s->fdt_size); + if (!ms->fdt) { + error_report("create_device_tree() failed"); + exit(1); + } + } + + qemu_fdt_setprop_string(ms->fdt, "/", "model", "mips-virtio,qemu"); + qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "mips-virtio"); + qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); + qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); + + clk_ph = qemu_fdt_alloc_phandle(ms->fdt); + qemu_fdt_add_subnode(ms->fdt, "/cpu-refclk"); + qemu_fdt_setprop_string(ms->fdt, "/cpu-refclk", "compatible", + "fixed-clock"); + qemu_fdt_setprop_cell(ms->fdt, "/cpu-refclk", "#clock-cells", 0x0); + qemu_fdt_setprop_cell(ms->fdt, "/cpu-refclk", "clock-frequency", + VIRT_CPU_REF_CLK_FREQ); + qemu_fdt_setprop_string(ms->fdt, "/cpu-refclk", "clock-output-names", + "cpu-refclk"); + qemu_fdt_setprop_cell(ms->fdt, "/cpu-refclk", "phandle", clk_ph); + + qemu_fdt_add_subnode(ms->fdt, "/cpus"); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); + + for (int cpu = 0; cpu < ms->smp.cpus; cpu++) { + char *name = g_strdup_printf("/cpus/cpu@%d", cpu); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "img,mips"); + qemu_fdt_setprop_string(ms->fdt, name, "status", "okay"); + qemu_fdt_setprop_cell(ms->fdt, name, "reg", cpu); + qemu_fdt_setprop_string(ms->fdt, name, "device_type", "cpu"); + qemu_fdt_setprop_cell(ms->fdt, name, "clocks", clk_ph); + g_free(name); + } + + create_fdt_memory(s, memmap); + + qemu_fdt_add_subnode(ms->fdt, "/soc"); + qemu_fdt_setprop(ms->fdt, "/soc", "ranges", NULL, 0); + qemu_fdt_setprop_string(ms->fdt, "/soc", "compatible", "simple-bus"); + qemu_fdt_setprop_cell(ms->fdt, "/soc", "#size-cells", 0x2); + qemu_fdt_setprop_cell(ms->fdt, "/soc", "#address-cells", 0x2); + + irq_ph = qemu_fdt_alloc_phandle(ms->fdt); + + create_fdt_cpc(s, memmap, clk_ph, irq_ph); + create_fdt_virtio(s, memmap, irq_ph); + create_fdt_pcie(s, memmap, irq_ph); + create_fdt_reset(s, memmap); + create_fdt_uart(s, memmap, irq_ph); + create_fdt_rtc(s, memmap, irq_ph); + create_fdt_flash(s, memmap); + create_fdt_fw_cfg(s, memmap); + +update_bootargs: + if (cmdline && *cmdline) { + qemu_fdt_setprop_string(ms->fdt, "/chosen", "bootargs", cmdline); + } + + /* Pass seed to RNG */ + qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); + qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed", rng_seed, + sizeof(rng_seed)); + create_fdt_hypervisor(s); +} + +static void gen_firmware(void *p, hwaddr kernel_entry, hwaddr fdt_addr) +{ + uint64_t regaddr; + const MemMapEntry *memmap = virt_memmap; + + /* Move CM GCRs */ + regaddr = cpu_mips_phys_to_kseg1(NULL, GCR_BASE_ADDR + GCR_BASE_OFS), + bl_gen_write_ulong(&p, regaddr, memmap[VIRT_CM].base); + + /* Move & enable GIC GCRs */ + regaddr = cpu_mips_phys_to_kseg1(NULL, + memmap[VIRT_CM].base + GCR_GIC_BASE_OFS); + bl_gen_write_ulong(&p, regaddr, + memmap[VIRT_GIC].base | GCR_GIC_BASE_GICEN_MSK); + + /* Move & enable CPC GCRs */ + regaddr = cpu_mips_phys_to_kseg1(NULL, + memmap[VIRT_CM].base + GCR_CPC_BASE_OFS); + bl_gen_write_ulong(&p, regaddr, + memmap[VIRT_CPC].base | GCR_CPC_BASE_CPCEN_MSK); + + /* + * Setup argument registers to follow the UHI boot protocol: + * + * a0/$4 = -2 + * a1/$5 = virtual address of FDT + * a2/$6 = 0 + * a3/$7 = 0 + */ + bl_gen_jump_kernel(&p, true, 0, true, (int32_t)-2, + true, fdt_addr, true, 0, true, 0, kernel_entry); +} + +static void virt_map_memory(MemoryRegion *sysmem, MemoryRegion *ram, + hwaddr ram_size, hwaddr low_size, hwaddr high_base) +{ + MemoryRegion *low_alias = g_new(MemoryRegion, 1); + + memory_region_init_alias(low_alias, NULL, "mips_virt.lomem", ram, 0, + low_size); + + memory_region_add_subregion(sysmem, 0, low_alias); + + if (ram_size > low_size) { + MemoryRegion *high_alias = g_new(MemoryRegion, 1); + memory_region_init_alias(high_alias, NULL, "mips_virt.himem", ram, + low_size, ram_size - low_size); + memory_region_add_subregion(sysmem, high_base, high_alias); + } +} + +static void virt_rom_init(MIPSVirtState *s, MemoryRegion *sysmem) +{ + MemoryRegion *boot_alias = g_new(MemoryRegion, 1); + s->rom = g_new(MemoryRegion, 1); + memory_region_init_ram(s->rom, NULL, "mips_virt.rom", + virt_memmap[VIRT_ROM].size, &error_fatal); + memory_region_add_subregion(sysmem, + virt_memmap[VIRT_ROM_BOOT].base, s->rom); + memory_region_init_alias(boot_alias, NULL, "mips_virt.rom_boot", s->rom, + 0, virt_memmap[VIRT_ROM_BOOT].size); + memory_region_add_subregion(sysmem, virt_memmap[VIRT_ROM_BOOT].base, + boot_alias); +} + +#define VIRT_FLASH_SECTOR_SIZE (256 * KiB) + +static void virt_flash_init(MIPSVirtState *s, hwaddr base, hwaddr size) +{ + DriveInfo *dinfo; +#if TARGET_BIG_ENDIAN + int be = 1; +#else + int be = 0; +#endif + + dinfo = drive_get(IF_PFLASH, 0, 0); + s->flash = pflash_cfi01_register(base, "mips_virt.flash", size, + dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, + VIRT_FLASH_SECTOR_SIZE, 4, + 0x89, 0x18, 0x00, 0x00, be); +} + +static inline DeviceState *gpex_pcie_init(MIPSVirtState *s, + MemoryRegion *sys_mem, + hwaddr ecam_base, hwaddr ecam_size, + hwaddr mmio_base, hwaddr mmio_size, + hwaddr pio_base) +{ + DeviceState *dev; + MemoryRegion *ecam_alias, *ecam_reg; + MemoryRegion *mmio_alias, *mmio_reg; + qemu_irq irq; + int i; + + dev = qdev_new(TYPE_GPEX_HOST); + + sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); + + ecam_alias = g_new0(MemoryRegion, 1); + ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); + memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", ecam_reg, 0, + ecam_size); + memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias); + + mmio_alias = g_new0(MemoryRegion, 1); + mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); + memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", mmio_reg, + mmio_base, mmio_size); + memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); + + for (i = 0; i < GPEX_NUM_IRQS; i++) { + irq = get_cps_irq(s->cps, PCIE_IRQ + i); + + sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); + gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i); + } + + return dev; +} + +static FWCfgState *create_fw_cfg(const MachineState *ms) +{ + hwaddr base = virt_memmap[VIRT_FW_CFG].base; + FWCfgState *fw_cfg; + + fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, + &address_space_memory); + fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); + + return fw_cfg; +} + +static void create_platform_bus(MIPSVirtState *s) +{ + DeviceState *dev; + SysBusDevice *sysbus; + const MemMapEntry *memmap = virt_memmap; + int i; + MemoryRegion *sysmem = get_system_memory(); + + dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); + dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); + qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); + qdev_prop_set_uint32(dev, "mmio_size", memmap[VIRT_PLATFORM_BUS].size); + sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); + s->platform_bus_dev = dev; + + sysbus = SYS_BUS_DEVICE(dev); + for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { + qemu_irq irq = get_cps_irq(s->cps, VIRT_PLATFORM_BUS_IRQ + i); + sysbus_connect_irq(sysbus, i, irq); + } + + memory_region_add_subregion(sysmem, memmap[VIRT_PLATFORM_BUS].base, + sysbus_mmio_get_region(sysbus, 0)); +} + +static void virt_machine_done(Notifier *notifier, void *data) +{ + MIPSVirtState *s = container_of(notifier, MIPSVirtState, machine_done); + MachineState *machine = MACHINE(s); + int ret, dt_size; + bool firmware_loaded = false; + /* Leave some space for exception vector */ + hwaddr dtb_paddr = virt_memmap[VIRT_LOMEM].base + 0x1000; + + if (machine->firmware) { + char *fname; + int fw_size; + + fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, machine->firmware); + if (!fname && !qtest_enabled()) { + error_report("Could not find ROM image '%s'", machine->firmware); + exit(1); + } + fw_size = load_image_mr(fname, s->rom); + if (fw_size == -1) { + error_report("unable to load firmware image '%s'", fname); + exit(1); + } + g_free(fname); + firmware_loaded = true; + } + + s->fw_cfg = create_fw_cfg(machine); + rom_set_fw(s->fw_cfg); + + if (machine->kernel_filename) { + if (firmware_loaded) { + /* Just pass those files via fw_cfg */ + load_image_to_fw_cfg(s->fw_cfg, FW_CFG_KERNEL_SIZE, + FW_CFG_KERNEL_DATA, machine->kernel_filename, + true); + load_image_to_fw_cfg(s->fw_cfg, FW_CFG_INITRD_SIZE, + FW_CFG_INITRD_DATA, machine->initrd_filename, + false); + + if (machine->kernel_cmdline) { + fw_cfg_add_i32(s->fw_cfg, FW_CFG_CMDLINE_SIZE, + strlen(machine->kernel_cmdline) + 1); + fw_cfg_add_string(s->fw_cfg, FW_CFG_CMDLINE_DATA, + machine->kernel_cmdline); + } + } else { + uint64_t kernel_entry, kernel_high; + ssize_t size; + + size = load_elf(machine->kernel_filename, NULL, + cpu_mips_kseg0_to_phys, NULL, &kernel_entry, NULL, + &kernel_high, NULL, 0, EM_MIPS, 1, 0); + + if (size == -1) { + error_report("could not load kernel '%s'", + machine->kernel_filename); + exit(1); + } + + if (machine->initrd_filename) { + const char *name = machine->initrd_filename; + hwaddr kernel_end = cpu_mips_kseg0_to_phys(NULL, kernel_high); + hwaddr start = MAX(64 * MiB, + QEMU_ALIGN_UP(kernel_end + 1, 1 * MiB)); + hwaddr maxsz = MIN(machine->ram_size, + virt_memmap[VIRT_LOMEM].size) - start; + + size = load_ramdisk(name, start, maxsz); + if (size == -1) { + size = load_image_targphys(name, start, maxsz); + if (size == -1) { + error_report("could not load ramdisk '%s'", name); + exit(1); + } + } + qemu_fdt_setprop_cell(machine->fdt, "/chosen", + "linux,initrd-start", start); + qemu_fdt_setprop_cell(machine->fdt, "/chosen", + "linux,initrd-end", start + size); + } + gen_firmware(memory_region_get_ram_ptr(s->rom), kernel_entry, + cpu_mips_phys_to_kseg0(NULL, dtb_paddr)); + } + } + + memory_region_set_readonly(s->rom, true); + ret = fdt_pack(machine->fdt); + /* Should only fail if we've built a corrupted tree */ + g_assert(ret == 0); + /* Update dt_size after pack */ + dt_size = fdt_totalsize(machine->fdt); + /* copy in the device tree */ + qemu_fdt_dumpdtb(machine->fdt, dt_size); + fw_cfg_add_file(s->fw_cfg, "etc/fdt", machine->fdt, dt_size); + rom_add_blob_fixed("dtb", machine->fdt, dt_size, dtb_paddr); + qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, + rom_ptr(dtb_paddr, dt_size)); +} + +static void virt_machine_init(MachineState *machine) +{ + MIPSVirtState *s = MIPS_VIRT_MACHINE(machine); + MemoryRegion *system_memory = get_system_memory(); + const MemMapEntry *memmap = virt_memmap; + int i; + + s->cpuclk = clock_new(OBJECT(machine), "cpu-refclk"); + clock_set_hz(s->cpuclk, VIRT_CPU_REF_CLK_FREQ); + + s->cps = MIPS_CPS(qdev_new(TYPE_MIPS_CPS)); + object_property_set_str(OBJECT(s->cps), "cpu-type", machine->cpu_type, + &error_fatal); + object_property_set_uint(OBJECT(s->cps), "num-vp", machine->smp.cpus, + &error_fatal); + qdev_connect_clock_in(DEVICE(s->cps), "clk-in", s->cpuclk); + sysbus_realize(SYS_BUS_DEVICE(s->cps), &error_fatal); + sysbus_mmio_map_overlap(SYS_BUS_DEVICE(s->cps), 0, 0, 1); + + + virt_map_memory(system_memory, machine->ram, machine->ram_size, + virt_memmap[VIRT_LOMEM].size, + virt_memmap[VIRT_HIGHMEM].base); + + virt_rom_init(s, system_memory); + virt_flash_init(s, memmap[VIRT_FLASH].base, memmap[VIRT_FLASH].size); + + serial_mm_init(system_memory, memmap[VIRT_UART0].base, 0, + get_cps_irq(s->cps, UART0_IRQ), 399193, serial_hd(0), + DEVICE_LITTLE_ENDIAN); + + for (i = 0; i < VIRTIO_COUNT; i++) { + sysbus_create_simple("virtio-mmio", + memmap[VIRT_VIRTIO].base + + i * memmap[VIRT_VIRTIO].size, + get_cps_irq(s->cps, VIRTIO_IRQ + i)); + } + + gpex_pcie_init(s, system_memory, memmap[VIRT_PCIE_ECAM].base, + memmap[VIRT_PCIE_ECAM].size, memmap[VIRT_PCIE_MMIO].base, + memmap[VIRT_PCIE_MMIO].size, memmap[VIRT_PCIE_PIO].base); + + create_platform_bus(s); + + sysbus_create_simple(TYPE_GOLDFISH_RTC, memmap[VIRT_RTC].base, + get_cps_irq(s->cps, RTC_IRQ)); + + sysbus_create_simple(TYPE_MIPS_TRICKBOX, memmap[VIRT_TRICKBOX].base, NULL); + + create_fdt(s, memmap, machine->kernel_cmdline); + s->machine_done.notify = virt_machine_done; + qemu_add_machine_init_done_notifier(&s->machine_done); +} + +static void virt_machine_instance_init(Object *obj) +{ +} + +static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, + DeviceState *dev) +{ + MachineClass *mc = MACHINE_GET_CLASS(machine); + + if (device_is_dynamic_sysbus(mc, dev)) { + return HOTPLUG_HANDLER(machine); + } + return NULL; +} + +static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + MIPSVirtState *s = MIPS_VIRT_MACHINE(hotplug_dev); + + if (s->platform_bus_dev) { + MachineClass *mc = MACHINE_GET_CLASS(s); + + if (device_is_dynamic_sysbus(mc, dev)) { + platform_bus_link_device(PLATFORM_BUS_DEVICE(s->platform_bus_dev), + SYS_BUS_DEVICE(dev)); + } + } +} + +static void virt_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); + + mc->desc = "MIPS VirtIO board"; + mc->init = virt_machine_init; + mc->max_cpus = 16; +#ifdef TARGET_MIPS64 + mc->default_cpu_type = MIPS_CPU_TYPE_NAME("I6400"); +#else + mc->default_cpu_type = MIPS_CPU_TYPE_NAME("P5600"); +#endif + mc->default_ram_id = "mips_virt_board.ram"; + mc->block_default_type = IF_VIRTIO; + mc->default_display = "virtio"; + mc->no_cdrom = 1; + mc->get_hotplug_handler = virt_machine_get_hotplug_handler; + mc->pci_allow_0_address = true; + + hc->plug = virt_machine_device_plug_cb; + + machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); +#ifdef CONFIG_TPM + machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); +#endif +} + +static const TypeInfo virt_machine_types[] = { + { + .name = MACHINE_TYPE_NAME("virt"), + .parent = TYPE_MACHINE, + .class_init = virt_machine_class_init, + .instance_init = virt_machine_instance_init, + .instance_size = sizeof(MIPSVirtState), + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } + }, +}; + +DEFINE_TYPES(virt_machine_types)