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[RFC v2 2/2] hw/riscv: Add server platform reference machine
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From: |
Fei Wu |
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Subject: |
[RFC v2 2/2] hw/riscv: Add server platform reference machine |
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Date: |
Tue, 12 Mar 2024 21:52:21 +0800 |
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);
+}
+
+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, 2024/03/22