From: Fei Wu <[email protected]> The RISC-V Server Platform specification [1] defines a standardized set of hardware and software capabilities, that portable system software, such as OS and hypervisors can rely on being present in a RISC-V server platform.
We do not have all the required extensions in QEMU: we're missing 'sdext'. In theory we shouldn't go ahead with this work, but the emulation as is now is proving to be useful for development and testing of other parts of the SW stack (firmware, kernel) and we would like to make it broadly available to everyone. We're contributing it as 'experimental', hopefully making it clear that the board does NOT complies 100% with [1]. The main features included in this emulation are: - Based on riscv virt machine type - A new memory map as close as virt machine as possible - A new virt CPU type rvsp-ref-cpu for server platform compliance - AIA - PCIe AHCI - PCIe NIC - No virtio device - No fw_cfg device - No ACPI table provided - Only minimal device tree nodes [1] https://github.com/riscv-non-isa/riscv-server-platform Signed-off-by: Fei Wu <[email protected]> Signed-off-by: Daniel Henrique Barboza <[email protected]> --- configs/devices/riscv64-softmmu/default.mak | 1 + hw/riscv/Kconfig | 14 + hw/riscv/meson.build | 1 + hw/riscv/server_platform_ref.c | 1276 +++++++++++++++++++ 4 files changed, 1292 insertions(+) create mode 100644 hw/riscv/server_platform_ref.c diff --git a/configs/devices/riscv64-softmmu/default.mak b/configs/devices/riscv64-softmmu/default.mak index e485bbd1a3..e6075a7113 100644 --- a/configs/devices/riscv64-softmmu/default.mak +++ b/configs/devices/riscv64-softmmu/default.mak @@ -9,6 +9,7 @@ # CONFIG_SIFIVE_E=n # CONFIG_SIFIVE_U=n # CONFIG_RISCV_VIRT=n +# CONFIG_SERVER_PLATFORM_REF=n # CONFIG_MICROCHIP_PFSOC=n # CONFIG_SHAKTI_C=n # CONFIG_XIANGSHAN_KUNMINGHU=n diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig index fc9c35bd98..6a5085c7a5 100644 --- a/hw/riscv/Kconfig +++ b/hw/riscv/Kconfig @@ -69,6 +69,20 @@ config RISCV_VIRT select ACPI select ACPI_PCI +config SERVER_PLATFORM_REF + bool + default y + depends on RISCV64 + select RISCV_NUMA + select GOLDFISH_RTC + select PCI + select PCI_EXPRESS_GENERIC_BRIDGE + select PFLASH_CFI01 + select SERIAL + select RISCV_ACLINT + select RISCV_APLIC + select RISCV_IMSIC + config SHAKTI_C bool default y diff --git a/hw/riscv/meson.build b/hw/riscv/meson.build index 2a8d5b136c..0daf77e887 100644 --- a/hw/riscv/meson.build +++ b/hw/riscv/meson.build @@ -4,6 +4,7 @@ riscv_ss.add(when: 'CONFIG_RISCV_NUMA', if_true: files('numa.c')) riscv_ss.add(files('riscv_hart.c')) riscv_ss.add(when: 'CONFIG_OPENTITAN', if_true: files('opentitan.c')) riscv_ss.add(when: 'CONFIG_RISCV_VIRT', if_true: files('virt.c')) +riscv_ss.add(when: 'CONFIG_SERVER_PLATFORM_REF', if_true: files('server_platform_ref.c')) riscv_ss.add(when: 'CONFIG_SHAKTI_C', if_true: files('shakti_c.c')) riscv_ss.add(when: 'CONFIG_SIFIVE_E', if_true: files('sifive_e.c')) riscv_ss.add(when: 'CONFIG_SIFIVE_U', if_true: files('sifive_u.c')) diff --git a/hw/riscv/server_platform_ref.c b/hw/riscv/server_platform_ref.c new file mode 100644 index 0000000000..ef2891a9d7 --- /dev/null +++ b/hw/riscv/server_platform_ref.c @@ -0,0 +1,1276 @@ +/* + * QEMU RISC-V Server Platform (RVSP) Reference Board + * + * Copyright (c) 2024 Intel, Inc. + * Copyright (c) 2025 Ventana Micro Systems Inc. + * + * This board is compliant RISC-V Server platform specification and leveraging + * a lot of riscv virt code. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/units.h" +#include "qemu/error-report.h" +#include "qemu/guest-random.h" +#include "qapi/error.h" +#include "qapi/qapi-visit-common.h" +#include "hw/boards.h" +#include "hw/loader.h" +#include "hw/sysbus.h" +#include "hw/qdev-properties.h" +#include "hw/char/serial.h" +#include "hw/block/flash.h" +#include "hw/ide/pci.h" +#include "hw/ide/ahci-pci.h" +#include "hw/pci/pci.h" +#include "hw/pci-host/gpex.h" +#include "hw/core/sysbus-fdt.h" +#include "hw/riscv/riscv_hart.h" +#include "hw/riscv/boot.h" +#include "hw/riscv/numa.h" +#include "hw/intc/riscv_aclint.h" +#include "hw/intc/riscv_aplic.h" +#include "hw/intc/riscv_imsic.h" +#include "chardev/char.h" +#include "hw/char/serial-mm.h" +#include "system/device_tree.h" +#include "system/runstate.h" +#include "system/system.h" +#include "system/tcg.h" +#include "system/qtest.h" +#include "target/riscv/cpu.h" +#include "target/riscv/pmu.h" +#include "net/net.h" + +#define RVSP_CPUS_MAX_BITS 9 +#define RVSP_CPUS_MAX (1 << RVSP_CPUS_MAX_BITS) +#define RVSP_SOCKETS_MAX_BITS 2 +#define RVSP_SOCKETS_MAX (1 << RVSP_SOCKETS_MAX_BITS) + +#define RVSP_IRQCHIP_NUM_MSIS 255 +#define RVSP_IRQCHIP_NUM_SOURCES 96 +#define RVSP_IRQCHIP_NUM_PRIO_BITS 3 +#define RVSP_IRQCHIP_MAX_GUESTS_BITS 3 +#define RVSP_IRQCHIP_MAX_GUESTS ((1U << RVSP_IRQCHIP_MAX_GUESTS_BITS) - 1U) + +#define FDT_PCI_ADDR_CELLS 3 +#define FDT_PCI_INT_CELLS 1 +#define FDT_APLIC_INT_CELLS 2 +#define FDT_IMSIC_INT_CELLS 0 +#define FDT_MAX_INT_CELLS 2 +#define FDT_MAX_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + \ + 1 + FDT_MAX_INT_CELLS) +#define FDT_APLIC_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + \ + 1 + FDT_APLIC_INT_CELLS) + +#define NUM_SATA_PORTS 6 + +#define SYSCON_RESET 0x1 +#define SYSCON_POWEROFF 0x2 + +#define TYPE_RVSP_REF_MACHINE MACHINE_TYPE_NAME("rvsp-ref") +OBJECT_DECLARE_SIMPLE_TYPE(RVSPMachineState, RVSP_REF_MACHINE) + +struct RVSPMachineState { + /*< private >*/ + MachineState parent; + + /*< public >*/ + Notifier machine_done; + RISCVHartArrayState soc[RVSP_SOCKETS_MAX]; + DeviceState *irqchip[RVSP_SOCKETS_MAX]; + PFlashCFI01 *flash[2]; + + int fdt_size; + int aia_guests; + const MemMapEntry *memmap; +}; + +enum { + RVSP_DEBUG, + RVSP_MROM, + RVSP_RESET_SYSCON, + RVSP_RTC, + RVSP_ACLINT, + RVSP_APLIC_M, + RVSP_APLIC_S, + RVSP_UART0, + RVSP_IMSIC_M, + RVSP_IMSIC_S, + RVSP_FLASH, + RVSP_DRAM, + RVSP_PCIE_MMIO, + RVSP_PCIE_PIO, + RVSP_PCIE_ECAM, + RVSP_PCIE_MMIO_HIGH +}; + +enum { + RVSP_UART0_IRQ = 10, + RVSP_RTC_IRQ = 11, + RVSP_PCIE_IRQ = 0x20, /* 32 to 35 */ +}; + +/* + * The server soc reference machine physical address space used by some of the + * devices namely ACLINT, APLIC and IMSIC depend on number of Sockets, number + * of CPUs, and number of IMSIC guest files. + * + * Various limits defined by RVSP_SOCKETS_MAX_BITS, RVSP_CPUS_MAX_BITS, and + * RVSP_IRQCHIP_MAX_GUESTS_BITS are tuned for maximum utilization of server soc + * reference machine physical address space. + */ + +#define RVSP_IMSIC_GROUP_MAX_SIZE (1U << IMSIC_MMIO_GROUP_MIN_SHIFT) +#if RVSP_IMSIC_GROUP_MAX_SIZE < \ + IMSIC_GROUP_SIZE(RVSP_CPUS_MAX_BITS, RVSP_IRQCHIP_MAX_GUESTS_BITS) +#error "Can't accomodate single IMSIC group in address space" +#endif + +#define RVSP_IMSIC_MAX_SIZE (RVSP_SOCKETS_MAX * \ + RVSP_IMSIC_GROUP_MAX_SIZE) +#if 0x4000000 < RVSP_IMSIC_MAX_SIZE +#error "Can't accomodate all IMSIC groups in address space" +#endif + +static const MemMapEntry rvsp_ref_memmap[] = { + [RVSP_DEBUG] = { 0x0, 0x100 }, + [RVSP_MROM] = { 0x1000, 0xf000 }, + [RVSP_RESET_SYSCON] = { 0x100000, 0x1000 }, + [RVSP_RTC] = { 0x101000, 0x1000 }, + [RVSP_ACLINT] = { 0x2000000, 0x10000 }, + [RVSP_PCIE_PIO] = { 0x3000000, 0x10000 }, + [RVSP_APLIC_M] = { 0xc000000, APLIC_SIZE(RVSP_CPUS_MAX) }, + [RVSP_APLIC_S] = { 0xd000000, APLIC_SIZE(RVSP_CPUS_MAX) }, + [RVSP_UART0] = { 0x10000000, 0x100 }, + [RVSP_FLASH] = { 0x20000000, 0x4000000 }, + [RVSP_IMSIC_M] = { 0x24000000, RVSP_IMSIC_MAX_SIZE }, + [RVSP_IMSIC_S] = { 0x28000000, RVSP_IMSIC_MAX_SIZE }, + [RVSP_PCIE_ECAM] = { 0x30000000, 0x10000000 }, + [RVSP_PCIE_MMIO] = { 0x40000000, 0x40000000 }, + [RVSP_DRAM] = { 0x80000000, 0xff80000000ull }, + [RVSP_PCIE_MMIO_HIGH] = { 0x10000000000ull, 0x10000000000ull }, +}; + +#define RVSP_FLASH_SECTOR_SIZE (256 * KiB) + +static PFlashCFI01 *rvsp_flash_create(RVSPMachineState *s, + const char *name, + const char *alias_prop_name) +{ + /* + * Create a single flash device. We use the same parameters as + * the flash devices on the ARM virt board. + */ + DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); + + qdev_prop_set_uint64(dev, "sector-length", RVSP_FLASH_SECTOR_SIZE); + qdev_prop_set_uint8(dev, "width", 4); + qdev_prop_set_uint8(dev, "device-width", 2); + qdev_prop_set_bit(dev, "big-endian", false); + qdev_prop_set_uint16(dev, "id0", 0x89); + qdev_prop_set_uint16(dev, "id1", 0x18); + qdev_prop_set_uint16(dev, "id2", 0x00); + qdev_prop_set_uint16(dev, "id3", 0x00); + qdev_prop_set_string(dev, "name", name); + + object_property_add_child(OBJECT(s), name, OBJECT(dev)); + object_property_add_alias(OBJECT(s), alias_prop_name, + OBJECT(dev), "drive"); + + return PFLASH_CFI01(dev); +} + +static void rvsp_flash_map(PFlashCFI01 *flash, + hwaddr base, hwaddr size, + MemoryRegion *sysmem) +{ + DeviceState *dev = DEVICE(flash); + + assert(QEMU_IS_ALIGNED(size, RVSP_FLASH_SECTOR_SIZE)); + assert(size / RVSP_FLASH_SECTOR_SIZE <= UINT32_MAX); + qdev_prop_set_uint32(dev, "num-blocks", size / RVSP_FLASH_SECTOR_SIZE); + sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); + + memory_region_add_subregion(sysmem, base, + sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), + 0)); +} + +static void rvsp_flash_maps(RVSPMachineState *s, + MemoryRegion *sysmem) +{ + hwaddr flashsize = rvsp_ref_memmap[RVSP_FLASH].size / 2; + hwaddr flashbase = rvsp_ref_memmap[RVSP_FLASH].base; + + rvsp_flash_map(s->flash[0], flashbase, flashsize, sysmem); + rvsp_flash_map(s->flash[1], flashbase + flashsize, flashsize, sysmem); +} + +static void create_pcie_irq_map(RVSPMachineState *s, void *fdt, char *nodename, + uint32_t irqchip_phandle) +{ + int pin, dev; + uint32_t irq_map_stride = 0; + uint32_t full_irq_map[PCI_NUM_PINS * PCI_NUM_PINS * + 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 < PCI_NUM_PINS; dev++) { + int devfn = dev * 0x8; + + for (pin = 0; pin < PCI_NUM_PINS; pin++) { + int irq_nr = RVSP_PCIE_IRQ + + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS); + 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(irqchip_phandle); + irq_map[i++] = cpu_to_be32(irq_nr); + irq_map[i++] = cpu_to_be32(0x4); + + if (!irq_map_stride) { + irq_map_stride = i; + } + irq_map += irq_map_stride; + } + } + + qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, + PCI_NUM_PINS * PCI_NUM_PINS * + irq_map_stride * sizeof(uint32_t)); + + qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", + 0x1800, 0, 0, 0x7); +} + +static void create_fdt_socket_cpus(RVSPMachineState *s, int socket, + char *clust_name, uint32_t *phandle, + uint32_t *intc_phandles) +{ + int cpu; + uint32_t cpu_phandle; + MachineState *ms = MACHINE(s); + bool is_32_bit = riscv_is_32bit(&s->soc[0]); + int8_t satp_mode_max; + + for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { + RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu]; + satp_mode_max = cpu_ptr->cfg.max_satp_mode; + g_autofree char *cpu_name = NULL; + g_autofree char *core_name = NULL; + g_autofree char *intc_name = NULL; + g_autofree char *sv_name = NULL; + + cpu_phandle = (*phandle)++; + + cpu_name = g_strdup_printf("/cpus/cpu@%d", + s->soc[socket].hartid_base + cpu); + qemu_fdt_add_subnode(ms->fdt, cpu_name); + + if (satp_mode_max != -1) { + sv_name = g_strdup_printf("riscv,%s", + satp_mode_str(satp_mode_max, is_32_bit)); + qemu_fdt_setprop_string(ms->fdt, cpu_name, "mmu-type", sv_name); + } + + riscv_isa_write_fdt(cpu_ptr, ms->fdt, cpu_name); + + if (cpu_ptr->cfg.ext_zicbom) { + qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size", + cpu_ptr->cfg.cbom_blocksize); + } + + if (cpu_ptr->cfg.ext_zicboz) { + qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cboz-block-size", + cpu_ptr->cfg.cboz_blocksize); + } + + if (cpu_ptr->cfg.ext_zicbop) { + qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbop-block-size", + cpu_ptr->cfg.cbop_blocksize); + } + + qemu_fdt_setprop_string(ms->fdt, cpu_name, "compatible", "riscv"); + qemu_fdt_setprop_string(ms->fdt, cpu_name, "status", "okay"); + qemu_fdt_setprop_cell(ms->fdt, cpu_name, "reg", + s->soc[socket].hartid_base + cpu); + qemu_fdt_setprop_string(ms->fdt, cpu_name, "device_type", "cpu"); + riscv_socket_fdt_write_id(ms, cpu_name, socket); + qemu_fdt_setprop_cell(ms->fdt, cpu_name, "phandle", cpu_phandle); + + intc_phandles[cpu] = (*phandle)++; + + intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name); + qemu_fdt_add_subnode(ms->fdt, intc_name); + qemu_fdt_setprop_cell(ms->fdt, intc_name, "phandle", + intc_phandles[cpu]); + qemu_fdt_setprop_string(ms->fdt, intc_name, "compatible", + "riscv,cpu-intc"); + qemu_fdt_setprop(ms->fdt, intc_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, intc_name, "#interrupt-cells", 1); + + core_name = g_strdup_printf("%s/core%d", clust_name, cpu); + qemu_fdt_add_subnode(ms->fdt, core_name); + qemu_fdt_setprop_cell(ms->fdt, core_name, "cpu", cpu_phandle); + } +} + +static void create_fdt_socket_memory(RVSPMachineState *s, + const MemMapEntry *memmap, int socket) +{ + g_autofree char *mem_name = NULL; + hwaddr addr, size; + MachineState *ms = MACHINE(s); + + addr = memmap[RVSP_DRAM].base + riscv_socket_mem_offset(ms, socket); + size = riscv_socket_mem_size(ms, socket); + mem_name = g_strdup_printf("/memory@%"HWADDR_PRIx, addr); + qemu_fdt_add_subnode(ms->fdt, mem_name); + qemu_fdt_setprop_cells(ms->fdt, mem_name, "reg", + addr >> 32, addr, size >> 32, size); + qemu_fdt_setprop_string(ms->fdt, mem_name, "device_type", "memory"); + riscv_socket_fdt_write_id(ms, mem_name, socket); +} + +static void create_fdt_socket_aclint(RVSPMachineState *s, + const MemMapEntry *memmap, int socket, + uint32_t *intc_phandles) +{ + int cpu; + g_autofree char *name = NULL; + hwaddr addr, size; + uint32_t aclint_cells_size; + g_autofree uint32_t *aclint_mtimer_cells = NULL; + MachineState *ms = MACHINE(s); + + aclint_mtimer_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); + + for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { + aclint_mtimer_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); + aclint_mtimer_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_TIMER); + } + aclint_cells_size = s->soc[socket].num_harts * sizeof(uint32_t) * 2; + + addr = memmap[RVSP_ACLINT].base + RISCV_ACLINT_DEFAULT_MTIMER_SIZE * socket; + size = RISCV_ACLINT_DEFAULT_MTIMER_SIZE; + + name = g_strdup_printf("/soc/mtimer@%"HWADDR_PRIx, addr); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", + "riscv,aclint-mtimer"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", + 0x0, addr + RISCV_ACLINT_DEFAULT_MTIME, + 0x0, size - RISCV_ACLINT_DEFAULT_MTIME, + 0x0, addr + RISCV_ACLINT_DEFAULT_MTIMECMP, + 0x0, RISCV_ACLINT_DEFAULT_MTIME); + qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", + aclint_mtimer_cells, aclint_cells_size); + riscv_socket_fdt_write_id(ms, name, socket); +} + +static uint32_t imsic_num_bits(uint32_t count) +{ + uint32_t ret = 0; + + while (BIT(ret) < count) { + ret++; + } + + return ret; +} + +static void create_fdt_one_imsic(RVSPMachineState *s, hwaddr base_addr, + uint32_t *intc_phandles, uint32_t msi_phandle, + bool m_mode, uint32_t imsic_guest_bits) +{ + int cpu, socket; + g_autofree char *imsic_name = NULL; + MachineState *ms = MACHINE(s); + int socket_count = riscv_socket_count(ms); + uint32_t imsic_max_hart_per_socket, imsic_addr, imsic_size; + g_autofree uint32_t *imsic_cells = NULL; + g_autofree uint32_t *imsic_regs = NULL; + + imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); + imsic_regs = g_new0(uint32_t, socket_count * 4); + + for (cpu = 0; cpu < ms->smp.cpus; cpu++) { + imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); + imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); + } + + imsic_max_hart_per_socket = 0; + for (socket = 0; socket < socket_count; socket++) { + imsic_addr = base_addr + socket * RVSP_IMSIC_GROUP_MAX_SIZE; + imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * + s->soc[socket].num_harts; + imsic_regs[socket * 4 + 0] = 0; + imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); + imsic_regs[socket * 4 + 2] = 0; + imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); + if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { + imsic_max_hart_per_socket = s->soc[socket].num_harts; + } + } + + imsic_name = g_strdup_printf("/soc/imsics@%lx", (unsigned long)base_addr); + qemu_fdt_add_subnode(ms->fdt, imsic_name); + qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", "riscv,imsics"); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", + FDT_IMSIC_INT_CELLS); + qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); + qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", + imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); + qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, + socket_count * sizeof(uint32_t) * 4); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", + RVSP_IRQCHIP_NUM_MSIS); + + if (imsic_guest_bits) { + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", + imsic_guest_bits); + } + + if (socket_count > 1) { + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", + imsic_num_bits(imsic_max_hart_per_socket)); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", + imsic_num_bits(socket_count)); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", + IMSIC_MMIO_GROUP_MIN_SHIFT); + } + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); +} + +static void create_fdt_imsic(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t *phandle, uint32_t *intc_phandles, + uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +{ + *msi_m_phandle = (*phandle)++; + *msi_s_phandle = (*phandle)++; + + /* M-level IMSIC node */ + create_fdt_one_imsic(s, memmap[RVSP_IMSIC_M].base, intc_phandles, + *msi_m_phandle, true, 0); + + /* S-level IMSIC node */ + create_fdt_one_imsic(s, memmap[RVSP_IMSIC_S].base, intc_phandles, + *msi_s_phandle, false, + imsic_num_bits(s->aia_guests + 1)); + +} + +static void create_fdt_one_aplic(RVSPMachineState *s, int socket, + unsigned long aplic_addr, uint32_t aplic_size, + uint32_t msi_phandle, + uint32_t *intc_phandles, + uint32_t aplic_phandle, + uint32_t aplic_child_phandle, + bool m_mode, int num_harts) +{ + int cpu; + g_autofree char *aplic_name = NULL; + g_autofree uint32_t *aplic_cells = g_new0(uint32_t, num_harts * 2); + MachineState *ms = MACHINE(s); + + aplic_cells = g_new0(uint32_t, num_harts * 2); + + for (cpu = 0; cpu < num_harts; cpu++) { + aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); + aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); + } + + aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); + qemu_fdt_add_subnode(ms->fdt, aplic_name); + qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, + "#interrupt-cells", FDT_APLIC_INT_CELLS); + qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); + + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); + + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", + 0x0, aplic_addr, 0x0, aplic_size); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", + RVSP_IRQCHIP_NUM_SOURCES); + + if (aplic_child_phandle) { + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", + aplic_child_phandle); + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", + aplic_child_phandle, 0x1, + RVSP_IRQCHIP_NUM_SOURCES); + } + + riscv_socket_fdt_write_id(ms, aplic_name, socket); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); +} + +static void create_fdt_socket_aplic(RVSPMachineState *s, + const MemMapEntry *memmap, int socket, + uint32_t msi_m_phandle, + uint32_t msi_s_phandle, + uint32_t *phandle, + uint32_t *intc_phandles, + uint32_t *aplic_phandles, + int num_harts) +{ + unsigned long aplic_addr; + uint32_t aplic_m_phandle, aplic_s_phandle; + + aplic_m_phandle = (*phandle)++; + aplic_s_phandle = (*phandle)++; + + /* M-level APLIC node */ + aplic_addr = memmap[RVSP_APLIC_M].base + memmap[RVSP_APLIC_M].size * socket; + create_fdt_one_aplic(s, socket, aplic_addr, memmap[RVSP_APLIC_M].size, + msi_m_phandle, intc_phandles, + aplic_m_phandle, aplic_s_phandle, + true, num_harts); + + /* S-level APLIC node */ + aplic_addr = memmap[RVSP_APLIC_S].base + memmap[RVSP_APLIC_S].size * socket; + create_fdt_one_aplic(s, socket, aplic_addr, memmap[RVSP_APLIC_S].size, + msi_s_phandle, intc_phandles, + aplic_s_phandle, 0, + false, num_harts); + + aplic_phandles[socket] = aplic_s_phandle; +} + +static void create_fdt_pmu(RVSPMachineState *s) +{ + g_autofree char *pmu_name = g_strdup_printf("/pmu"); + MachineState *ms = MACHINE(s); + RISCVCPU hart = s->soc[0].harts[0]; + + qemu_fdt_add_subnode(ms->fdt, pmu_name); + qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu"); + riscv_pmu_generate_fdt_node(ms->fdt, hart.pmu_avail_ctrs, pmu_name); +} + +static void create_fdt_sockets(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t *phandle, + uint32_t *irq_mmio_phandle, + uint32_t *irq_pcie_phandle, + uint32_t *msi_pcie_phandle) +{ + int socket, phandle_pos; + MachineState *ms = MACHINE(s); + uint32_t msi_m_phandle = 0, msi_s_phandle = 0; + uint32_t xplic_phandles[MAX_NODES]; + g_autofree uint32_t *intc_phandles = NULL; + int socket_count = riscv_socket_count(ms); + + qemu_fdt_add_subnode(ms->fdt, "/cpus"); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "timebase-frequency", + RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); + qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); + + intc_phandles = g_new0(uint32_t, ms->smp.cpus); + + phandle_pos = ms->smp.cpus; + for (socket = (socket_count - 1); socket >= 0; socket--) { + g_autofree char *clust_name = NULL; + phandle_pos -= s->soc[socket].num_harts; + + clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); + qemu_fdt_add_subnode(ms->fdt, clust_name); + + create_fdt_socket_cpus(s, socket, clust_name, phandle, + &intc_phandles[phandle_pos]); + + create_fdt_socket_memory(s, memmap, socket); + + create_fdt_socket_aclint(s, memmap, socket, + &intc_phandles[phandle_pos]); + } + + create_fdt_imsic(s, memmap, phandle, intc_phandles, + &msi_m_phandle, &msi_s_phandle); + *msi_pcie_phandle = msi_s_phandle; + + phandle_pos = ms->smp.cpus; + for (socket = (socket_count - 1); socket >= 0; socket--) { + phandle_pos -= s->soc[socket].num_harts; + + create_fdt_socket_aplic(s, memmap, socket, + msi_m_phandle, msi_s_phandle, phandle, + &intc_phandles[phandle_pos], + xplic_phandles, + s->soc[socket].num_harts); + } + + for (socket = 0; socket < socket_count; socket++) { + if (socket == 0) { + *irq_mmio_phandle = xplic_phandles[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; + } + if (socket == 1) { + *irq_pcie_phandle = xplic_phandles[socket]; + } + } + + riscv_socket_fdt_write_distance_matrix(ms); +} + +static void create_fdt_pcie(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t irq_pcie_phandle, + uint32_t msi_pcie_phandle) +{ + g_autofree char *name = NULL; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/pci@%"HWADDR_PRIx, + memmap[RVSP_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[RVSP_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); + qemu_fdt_setprop(ms->fdt, name, "dma-coherent", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, name, "msi-parent", msi_pcie_phandle); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0, + memmap[RVSP_PCIE_ECAM].base, 0, memmap[RVSP_PCIE_ECAM].size); + qemu_fdt_setprop_sized_cells(ms->fdt, name, "ranges", + 1, FDT_PCI_RANGE_IOPORT, 2, 0, + 2, memmap[RVSP_PCIE_PIO].base, 2, memmap[RVSP_PCIE_PIO].size, + 1, FDT_PCI_RANGE_MMIO, + 2, memmap[RVSP_PCIE_MMIO].base, + 2, memmap[RVSP_PCIE_MMIO].base, 2, memmap[RVSP_PCIE_MMIO].size, + 1, FDT_PCI_RANGE_MMIO_64BIT, + 2, memmap[RVSP_PCIE_MMIO_HIGH].base, + 2, memmap[RVSP_PCIE_MMIO_HIGH].base, 2, + memmap[RVSP_PCIE_MMIO_HIGH].size); + + create_pcie_irq_map(s, ms->fdt, name, irq_pcie_phandle); +} + +static void create_fdt_reset(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t *phandle) +{ + char *name; + uint32_t test_phandle; + MachineState *ms = MACHINE(s); + + test_phandle = (*phandle)++; + name = g_strdup_printf("/soc/reset_syscon@%"HWADDR_PRIx, + memmap[RVSP_RESET_SYSCON].base); + qemu_fdt_add_subnode(ms->fdt, name); + qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon"); + qemu_fdt_setprop_cells(ms->fdt, name, "reg", + 0x0, memmap[RVSP_RESET_SYSCON].base, + 0x0, memmap[RVSP_RESET_SYSCON].size); + qemu_fdt_setprop_cell(ms->fdt, name, "phandle", test_phandle); + test_phandle = qemu_fdt_get_phandle(ms->fdt, name); + g_free(name); + + name = g_strdup_printf("/soc/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", test_phandle); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); + qemu_fdt_setprop_cell(ms->fdt, name, "value", SYSCON_RESET); + g_free(name); + + name = g_strdup_printf("/soc/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", test_phandle); + qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); + qemu_fdt_setprop_cell(ms->fdt, name, "value", SYSCON_POWEROFF); + g_free(name); +} + +static void create_fdt_uart(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t irq_mmio_phandle) +{ + g_autofree char *name = NULL; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/serial@%"HWADDR_PRIx, + memmap[RVSP_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[RVSP_UART0].base, + 0x0, memmap[RVSP_UART0].size); + qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400); + qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", RVSP_UART0_IRQ, 0x4); + + qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name); +} + +static void create_fdt_rtc(RVSPMachineState *s, const MemMapEntry *memmap, + uint32_t irq_mmio_phandle) +{ + g_autofree char *name = NULL; + MachineState *ms = MACHINE(s); + + name = g_strdup_printf("/soc/rtc@%"HWADDR_PRIx, memmap[RVSP_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[RVSP_RTC].base, 0x0, memmap[RVSP_RTC].size); + qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", + irq_mmio_phandle); + qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", RVSP_RTC_IRQ, 0x4); +} + +static void create_fdt_flash(RVSPMachineState *s, const MemMapEntry *memmap) +{ + MachineState *ms = MACHINE(s); + hwaddr flashsize = rvsp_ref_memmap[RVSP_FLASH].size / 2; + hwaddr flashbase = rvsp_ref_memmap[RVSP_FLASH].base; + g_autofree char *name = g_strdup_printf("/flash@%"HWADDR_PRIx, 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, + 2, flashbase + flashsize, 2, flashsize); + qemu_fdt_setprop_cell(ms->fdt, name, "bank-width", 4); +} + +static void finalize_fdt(RVSPMachineState *s) +{ + uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; + uint32_t irq_pcie_phandle = 1; + + create_fdt_sockets(s, rvsp_ref_memmap, &phandle, &irq_mmio_phandle, + &irq_pcie_phandle, &msi_pcie_phandle); + + create_fdt_pcie(s, rvsp_ref_memmap, irq_pcie_phandle, msi_pcie_phandle); + + create_fdt_reset(s, rvsp_ref_memmap, &phandle); + + create_fdt_uart(s, rvsp_ref_memmap, irq_mmio_phandle); + + create_fdt_rtc(s, rvsp_ref_memmap, irq_mmio_phandle); +} + +static void create_fdt(RVSPMachineState *s, const MemMapEntry *memmap) +{ + MachineState *ms = MACHINE(s); + uint8_t rng_seed[32]; + + 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", "riscv-rvsp-ref,qemu"); + qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "riscv-rvsp-ref"); + qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); + qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); + + /* + * This versioning scheme is for informing platform fw only. It is neither: + * - A QEMU versioned machine type; a given version of QEMU will emulate + * a given version of the platform. + * - A reflection of level of server platform support provided. + * + * machine-version-major: updated when changes breaking fw compatibility + * are introduced. + * machine-version-minor: updated when features are added that don't break + * fw compatibility. + * + * It's the same as the scheme in arm sbsa-ref. + */ + qemu_fdt_setprop_cell(ms->fdt, "/", "machine-version-major", 0); + qemu_fdt_setprop_cell(ms->fdt, "/", "machine-version-minor", 0); + + 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); + + qemu_fdt_add_subnode(ms->fdt, "/chosen"); + + /* 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_flash(s, memmap); + create_fdt_pmu(s); + +} + +static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, + DeviceState *irqchip, + RVSPMachineState *s) +{ + DeviceState *dev; + PCIHostState *pci; + PCIDevice *pdev_ahci; + AHCIPCIState *ich9; + DriveInfo *hd[NUM_SATA_PORTS]; + MemoryRegion *ecam_alias, *ecam_reg; + MemoryRegion *mmio_alias, *high_mmio_alias, *mmio_reg; + hwaddr ecam_base = rvsp_ref_memmap[RVSP_PCIE_ECAM].base; + hwaddr ecam_size = rvsp_ref_memmap[RVSP_PCIE_ECAM].size; + hwaddr mmio_base = rvsp_ref_memmap[RVSP_PCIE_MMIO].base; + hwaddr mmio_size = rvsp_ref_memmap[RVSP_PCIE_MMIO].size; + hwaddr high_mmio_base = rvsp_ref_memmap[RVSP_PCIE_MMIO_HIGH].base; + hwaddr high_mmio_size = rvsp_ref_memmap[RVSP_PCIE_MMIO_HIGH].size; + hwaddr pio_base = rvsp_ref_memmap[RVSP_PCIE_PIO].base; + hwaddr pio_size = rvsp_ref_memmap[RVSP_PCIE_PIO].size; + MachineClass *mc = MACHINE_GET_CLASS(s); + qemu_irq irq; + int i; + + dev = qdev_new(TYPE_GPEX_HOST); + + /* Set GPEX object properties for the rvsp ref machine */ + object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_BASE, + ecam_base, NULL); + object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_SIZE, + ecam_size, NULL); + object_property_set_uint(OBJECT(GPEX_HOST(dev)), + PCI_HOST_BELOW_4G_MMIO_BASE, + mmio_base, NULL); + object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_BELOW_4G_MMIO_SIZE, + mmio_size, NULL); + object_property_set_uint(OBJECT(GPEX_HOST(dev)), + PCI_HOST_ABOVE_4G_MMIO_BASE, + high_mmio_base, NULL); + object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ABOVE_4G_MMIO_SIZE, + high_mmio_size, NULL); + object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_BASE, + pio_base, NULL); + object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_SIZE, + pio_size, NULL); + + 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); + + /* Map high MMIO space */ + high_mmio_alias = g_new0(MemoryRegion, 1); + memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", + mmio_reg, high_mmio_base, high_mmio_size); + memory_region_add_subregion(get_system_memory(), high_mmio_base, + high_mmio_alias); + + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); + + for (i = 0; i < PCI_NUM_PINS; i++) { + irq = qdev_get_gpio_in(irqchip, RVSP_PCIE_IRQ + i); + + sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); + gpex_set_irq_num(GPEX_HOST(dev), i, RVSP_PCIE_IRQ + i); + } + + pci = PCI_HOST_BRIDGE(dev); + pci_init_nic_devices(pci->bus, mc->default_nic); + /* IDE disk setup. */ + pdev_ahci = pci_create_simple(pci->bus, -1, TYPE_ICH9_AHCI); + ich9 = ICH9_AHCI(pdev_ahci); + g_assert(ARRAY_SIZE(hd) == ich9->ahci.ports); + ide_drive_get(hd, ich9->ahci.ports); + ahci_ide_create_devs(&ich9->ahci, hd); + + GPEX_HOST(dev)->gpex_cfg.bus = PCI_HOST_BRIDGE(GPEX_HOST(dev))->bus; + return dev; +} + +static DeviceState *rvsp_ref_create_aia(int aia_guests, + const MemMapEntry *memmap, int socket, + int base_hartid, int hart_count) +{ + int i; + hwaddr addr; + uint32_t guest_bits; + DeviceState *aplic_s = NULL; + DeviceState *aplic_m = NULL; + bool msimode = true; + + /* Per-socket M-level IMSICs */ + addr = memmap[RVSP_IMSIC_M].base + + socket * RVSP_IMSIC_GROUP_MAX_SIZE; + for (i = 0; i < hart_count; i++) { + riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), + base_hartid + i, true, 1, + RVSP_IRQCHIP_NUM_MSIS); + } + + /* Per-socket S-level IMSICs */ + guest_bits = imsic_num_bits(aia_guests + 1); + addr = memmap[RVSP_IMSIC_S].base + socket * RVSP_IMSIC_GROUP_MAX_SIZE; + for (i = 0; i < hart_count; i++) { + riscv_imsic_create(addr + i * IMSIC_HART_SIZE(guest_bits), + base_hartid + i, false, 1 + aia_guests, + RVSP_IRQCHIP_NUM_MSIS); + } + + /* Per-socket M-level APLIC */ + aplic_m = riscv_aplic_create(memmap[RVSP_APLIC_M].base + + socket * memmap[RVSP_APLIC_M].size, + memmap[RVSP_APLIC_M].size, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, + RVSP_IRQCHIP_NUM_SOURCES, + RVSP_IRQCHIP_NUM_PRIO_BITS, + msimode, true, NULL); + + /* Per-socket S-level APLIC */ + aplic_s = riscv_aplic_create(memmap[RVSP_APLIC_S].base + + socket * memmap[RVSP_APLIC_S].size, + memmap[RVSP_APLIC_S].size, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, + RVSP_IRQCHIP_NUM_SOURCES, + RVSP_IRQCHIP_NUM_PRIO_BITS, + msimode, false, aplic_m); + + (void)aplic_s; + return aplic_m; +} + +static uint64_t rvsp_reset_syscon_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void rvsp_reset_syscon_write(void *opaque, hwaddr addr, + uint64_t val64, unsigned int size) +{ + switch (val64) { + case SYSCON_POWEROFF: + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + return; + case SYSCON_RESET: + qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); + return; + default: + break; + } +} + +static const MemoryRegionOps rvsp_reset_syscon_ops = { + .read = rvsp_reset_syscon_read, + .write = rvsp_reset_syscon_write, + .endianness = DEVICE_NATIVE_ENDIAN +}; + +static void rvsp_ref_machine_done(Notifier *notifier, void *data) +{ + RVSPMachineState *s = container_of(notifier, RVSPMachineState, + machine_done); + const MemMapEntry *memmap = rvsp_ref_memmap; + MachineState *machine = MACHINE(s); + hwaddr start_addr = memmap[RVSP_DRAM].base; + target_ulong firmware_end_addr, kernel_start_addr; + const char *firmware_name = riscv_default_firmware_name(&s->soc[0]); + uint64_t fdt_load_addr; + uint64_t kernel_entry = 0; + BlockBackend *pflash_blk0; + RISCVBootInfo boot_info; + + /* + * An user provided dtb must include everything, including + * dynamic sysbus devices. Our FDT needs to be finalized. + */ + if (machine->dtb == NULL) { + finalize_fdt(s); + } + + firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name, + &start_addr, NULL); + + pflash_blk0 = pflash_cfi01_get_blk(s->flash[0]); + if (pflash_blk0) { + if (machine->firmware && !strcmp(machine->firmware, "none")) { + /* + * Pflash was supplied but bios is none and not KVM guest, + * let's overwrite the address we jump to after reset to + * the base of the flash. + */ + start_addr = rvsp_ref_memmap[RVSP_FLASH].base; + } else { + /* + * Pflash was supplied but either KVM guest or bios is not none. + * In this case, base of the flash would contain S-mode payload. + */ + riscv_setup_firmware_boot(machine); + kernel_entry = rvsp_ref_memmap[RVSP_FLASH].base; + } + } + + riscv_boot_info_init(&boot_info, &s->soc[0]); + + if (machine->kernel_filename && !kernel_entry) { + kernel_start_addr = riscv_calc_kernel_start_addr(&boot_info, + firmware_end_addr); + riscv_load_kernel(machine, &boot_info, kernel_start_addr, true, NULL); + kernel_entry = boot_info.image_low_addr; + } + + fdt_load_addr = riscv_compute_fdt_addr(memmap[RVSP_DRAM].base, + memmap[RVSP_DRAM].size, + machine, &boot_info); + + riscv_load_fdt(fdt_load_addr, machine->fdt); + + /* load the reset vector */ + riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr, + rvsp_ref_memmap[RVSP_MROM].base, + rvsp_ref_memmap[RVSP_MROM].size, kernel_entry, + fdt_load_addr); + +} + +static bool rvsp_aclint_allowed(void) +{ + return tcg_enabled() || qtest_enabled(); +} + +static void rvsp_ref_machine_init(MachineState *machine) +{ + const MemMapEntry *memmap = rvsp_ref_memmap; + RVSPMachineState *s = RVSP_REF_MACHINE(machine); + MemoryRegion *system_memory = get_system_memory(); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); + MemoryRegion *reset_syscon_io = g_new(MemoryRegion, 1); + DeviceState *mmio_irqchip, *pcie_irqchip; + int i, base_hartid, hart_count; + int socket_count = riscv_socket_count(machine); + + /* Check socket count limit */ + if (RVSP_SOCKETS_MAX < socket_count) { + error_report("number of sockets/nodes should be less than %d", + RVSP_SOCKETS_MAX); + exit(1); + } + + if (!rvsp_aclint_allowed()) { + error_report("'aclint' is only available with TCG acceleration"); + exit(1); + } + + /* Initialize sockets */ + mmio_irqchip = pcie_irqchip = NULL; + for (i = 0; i < socket_count; i++) { + g_autofree char *soc_name = g_strdup_printf("soc%d", i); + + if (!riscv_socket_check_hartids(machine, i)) { + error_report("discontinuous hartids in socket%d", i); + exit(1); + } + + base_hartid = riscv_socket_first_hartid(machine, i); + if (base_hartid < 0) { + error_report("can't find hartid base for socket%d", i); + exit(1); + } + + hart_count = riscv_socket_hart_count(machine, i); + if (hart_count < 0) { + error_report("can't find hart count for socket%d", i); + exit(1); + } + + object_initialize_child(OBJECT(machine), soc_name, &s->soc[i], + TYPE_RISCV_HART_ARRAY); + object_property_set_str(OBJECT(&s->soc[i]), "cpu-type", + machine->cpu_type, &error_abort); + object_property_set_int(OBJECT(&s->soc[i]), "hartid-base", + base_hartid, &error_abort); + object_property_set_int(OBJECT(&s->soc[i]), "num-harts", + hart_count, &error_abort); + sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_fatal); + + /* Per-socket ACLINT MTIMER */ + riscv_aclint_mtimer_create(memmap[RVSP_ACLINT].base + + i * RISCV_ACLINT_DEFAULT_MTIMER_SIZE, + RISCV_ACLINT_DEFAULT_MTIMER_SIZE, + base_hartid, hart_count, + RISCV_ACLINT_DEFAULT_MTIMECMP, + RISCV_ACLINT_DEFAULT_MTIME, + RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); + + /* Per-socket interrupt controller */ + s->irqchip[i] = rvsp_ref_create_aia(s->aia_guests, + memmap, i, base_hartid, + hart_count); + + /* Try to use different IRQCHIP instance based device type */ + if (i == 0) { + mmio_irqchip = s->irqchip[i]; + pcie_irqchip = s->irqchip[i]; + } + if (i == 1) { + pcie_irqchip = s->irqchip[i]; + } + } + + s->memmap = rvsp_ref_memmap; + + /* register system main memory (actual RAM) */ + memory_region_add_subregion(system_memory, memmap[RVSP_DRAM].base, + machine->ram); + + /* boot rom */ + memory_region_init_rom(mask_rom, NULL, "riscv_rvsp_ref_board.mrom", + memmap[RVSP_MROM].size, &error_fatal); + memory_region_add_subregion(system_memory, memmap[RVSP_MROM].base, + mask_rom); + + memory_region_init_io(reset_syscon_io, NULL, &rvsp_reset_syscon_ops, + NULL, "reset_syscon_io", + memmap[RVSP_RESET_SYSCON].size); + memory_region_add_subregion(system_memory, + memmap[RVSP_RESET_SYSCON].base, + reset_syscon_io); + + gpex_pcie_init(system_memory, pcie_irqchip, s); + + serial_mm_init(system_memory, memmap[RVSP_UART0].base, + 0, qdev_get_gpio_in(mmio_irqchip, RVSP_UART0_IRQ), 399193, + serial_hd(0), DEVICE_LITTLE_ENDIAN); + + sysbus_create_simple("goldfish_rtc", memmap[RVSP_RTC].base, + qdev_get_gpio_in(mmio_irqchip, RVSP_RTC_IRQ)); + + for (i = 0; i < ARRAY_SIZE(s->flash); i++) { + /* Map legacy -drive if=pflash to machine properties */ + pflash_cfi01_legacy_drive(s->flash[i], + drive_get(IF_PFLASH, 0, i)); + } + rvsp_flash_maps(s, system_memory); + + /* load/create device tree */ + if (machine->dtb) { + machine->fdt = load_device_tree(machine->dtb, &s->fdt_size); + if (!machine->fdt) { + error_report("load_device_tree() failed"); + exit(1); + } + } else { + create_fdt(s, memmap); + } + + s->machine_done.notify = rvsp_ref_machine_done; + qemu_add_machine_init_done_notifier(&s->machine_done); +} + +static void rvsp_ref_machine_instance_init(Object *obj) +{ + RVSPMachineState *s = RVSP_REF_MACHINE(obj); + + s->flash[0] = rvsp_flash_create(s, "rvsp.flash0", "pflash0"); + s->flash[1] = rvsp_flash_create(s, "rvsp.flash1", "pflash1"); +} + +static char *rvsp_ref_get_aia_guests(Object *obj, Error **errp) +{ + RVSPMachineState *s = RVSP_REF_MACHINE(obj); + char val[32]; + + sprintf(val, "%d", s->aia_guests); + return g_strdup(val); +} + +static void rvsp_ref_set_aia_guests(Object *obj, const char *val, Error **errp) +{ + RVSPMachineState *s = RVSP_REF_MACHINE(obj); + + s->aia_guests = atoi(val); + if (s->aia_guests < 0 || s->aia_guests > RVSP_IRQCHIP_MAX_GUESTS) { + error_setg(errp, "Invalid number of AIA IMSIC guests"); + error_append_hint(errp, "Valid values be between 0 and %d.\n", + RVSP_IRQCHIP_MAX_GUESTS); + } +} + +static void rvsp_ref_machine_class_init(ObjectClass *oc, const void *data) +{ + char str[128]; + MachineClass *mc = MACHINE_CLASS(oc); + static const char * const valid_cpu_types[] = { + TYPE_RISCV_CPU_RVSP_REF, + }; + + mc->desc = "RISC-V Server SoC Reference board (EXPERIMENTAL)"; + mc->init = rvsp_ref_machine_init; + mc->max_cpus = RVSP_CPUS_MAX; + mc->default_cpu_type = TYPE_RISCV_CPU_RVSP_REF; + mc->valid_cpu_types = valid_cpu_types; + mc->pci_allow_0_address = true; + mc->default_nic = "e1000e"; + mc->possible_cpu_arch_ids = riscv_numa_possible_cpu_arch_ids; + mc->cpu_index_to_instance_props = riscv_numa_cpu_index_to_props; + mc->get_default_cpu_node_id = riscv_numa_get_default_cpu_node_id; + mc->numa_mem_supported = true; + /* platform instead of architectural choice */ + mc->cpu_cluster_has_numa_boundary = true; + mc->default_ram_id = "riscv_rvsp_ref_board.ram"; + + object_class_property_add_str(oc, "aia-guests", + rvsp_ref_get_aia_guests, + rvsp_ref_set_aia_guests); + sprintf(str, "Set number of guest MMIO pages for AIA IMSIC. Valid value " + "should be between 0 and %d.", RVSP_IRQCHIP_MAX_GUESTS); + object_class_property_set_description(oc, "aia-guests", str); +} + +static const TypeInfo rvsp_ref_typeinfo = { + .name = TYPE_RVSP_REF_MACHINE, + .parent = TYPE_MACHINE, + .class_init = rvsp_ref_machine_class_init, + .instance_init = rvsp_ref_machine_instance_init, + .instance_size = sizeof(RVSPMachineState), +}; + +static void rvsp_ref_init_register_types(void) +{ + type_register_static(&rvsp_ref_typeinfo); +} + +type_init(rvsp_ref_init_register_types) -- 2.51.1
