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Re: [RFC v2 2/2] hw/riscv: Add server platform reference machine
|
From: |
Atish Kumar Patra |
|
Subject: |
Re: [RFC v2 2/2] hw/riscv: Add server platform reference machine |
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Date: |
Fri, 22 Mar 2024 12:14:30 -0700 |
On Tue, Mar 12, 2024 at 6:53 AM Fei Wu <fei2.wu@intel.com> wrote:
>
> 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.
>
> A corresponding Qemu RISC-V server platform reference (rvsp-ref for
> short) machine type is added to provide a environment for firmware/OS
> development and testing. The main features included in rvsp-ref 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 <fei2.wu@intel.com>
> ---
> configs/devices/riscv64-softmmu/default.mak | 1 +
> hw/riscv/Kconfig | 12 +
> hw/riscv/meson.build | 1 +
> hw/riscv/server_platform_ref.c | 1276 +++++++++++++++++++
> 4 files changed, 1290 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 3f68059448..a1d98e49ef 100644
> --- a/configs/devices/riscv64-softmmu/default.mak
> +++ b/configs/devices/riscv64-softmmu/default.mak
> @@ -10,5 +10,6 @@ CONFIG_SPIKE=y
> CONFIG_SIFIVE_E=y
> CONFIG_SIFIVE_U=y
> CONFIG_RISCV_VIRT=y
> +CONFIG_SERVER_PLATFORM_REF=y
> CONFIG_MICROCHIP_PFSOC=y
> CONFIG_SHAKTI_C=y
> diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig
> index 5d644eb7b1..5674589e66 100644
> --- a/hw/riscv/Kconfig
> +++ b/hw/riscv/Kconfig
> @@ -48,6 +48,18 @@ config RISCV_VIRT
> select ACPI
> select ACPI_PCI
>
> +config SERVER_PLATFORM_REF
> + bool
> + 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
> select RISCV_ACLINT
> diff --git a/hw/riscv/meson.build b/hw/riscv/meson.build
> index 2f7ee81be3..bb3aff91ea 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..b552650265
> --- /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.
> + *
> + * This board is compliant RISC-V Server platform specification and
> leveraging
> + * a lot of riscv virt code.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2 or later, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope it will be useful, but WITHOUT
> + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
> + * more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> with
> + * this program. If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#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 "sysemu/device_tree.h"
> +#include "sysemu/runstate.h"
> +#include "sysemu/sysemu.h"
> +#include "sysemu/tcg.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[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 = RVSP_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(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,
> + 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_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]);
> + uint8_t satp_mode_max;
> +
> + for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) {
> + RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu];
> + 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 (cpu_ptr->cfg.satp_mode.supported != 0) {
> + satp_mode_max =
> satp_mode_max_from_map(cpu_ptr->cfg.satp_mode.map);
> + 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;
> + uint64_t 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@%lx", (long)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;
> + unsigned long 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@%lx", 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@%lx",
> + (long) 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@%lx",
> + (long)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@%lx", (long)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@%lx", (long)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@%" 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,
> + 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);
We need a minimalistic DT for firmwares which probably don't use rtc, pcie etc.
Does EDK2 plan to generate ACPI tables from these DT ? Otherwise, we
can get rid of these.
As Heinrich said, Linux kernels should boot using ACPI only.
> +}
> +
> +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 < GPEX_NUM_IRQS; 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);
> + target_ulong 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;
> +
> + /*
> + * 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;
> + }
> + }
> +
> + if (machine->kernel_filename && !kernel_entry) {
> + kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc[0],
> + firmware_end_addr);
> +
> + kernel_entry = riscv_load_kernel(machine, &s->soc[0],
> + kernel_start_addr, true, NULL);
> + }
> +
> + fdt_load_addr = riscv_compute_fdt_addr(memmap[RVSP_DRAM].base,
> + memmap[RVSP_DRAM].size,
> + machine);
> + 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 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 (!tcg_enabled()) {
> + 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, 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";
> + 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)
> --
> 2.34.1
>
Re: [RFC v2 2/2] hw/riscv: Add server platform reference machine,
Atish Kumar Patra <=