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Re: [PATCH v5 5/5] hw/riscv: virt: Allow creating multiple NUMA sockets
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From: |
Alistair Francis |
|
Subject: |
Re: [PATCH v5 5/5] hw/riscv: virt: Allow creating multiple NUMA sockets |
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Date: |
Wed, 10 Jun 2020 16:24:43 -0700 |
On Fri, May 29, 2020 at 4:49 AM Anup Patel <anup.patel@wdc.com> wrote:
>
> We extend RISC-V virt machine to allow creating a multi-socket
> machine. Each RISC-V virt machine socket is a NUMA node having
> a set of HARTs, a memory instance, a CLINT instance, and a PLIC
> instance. Other devices are shared between all sockets. We also
> update the generated device tree accordingly.
>
> By default, NUMA multi-socket support is disabled for RISC-V virt
> machine. To enable it, users can use "-numa" command-line options
> of QEMU.
>
> Example1: For two NUMA nodes with 2 CPUs each, append following
> to command-line options: "-smp 4 -numa node -numa node"
>
> Example2: For two NUMA nodes with 1 and 3 CPUs, append following
> to command-line options:
> "-smp 4 -numa node -numa node -numa cpu,node-id=0,core-id=0 \
> -numa cpu,node-id=1,core-id=1 -numa cpu,node-id=1,core-id=2 \
> -numa cpu,node-id=1,core-id=3"
>
> The maximum number of sockets in a RISC-V virt machine is 8
> but this limit can be changed in future.
>
> Signed-off-by: Anup Patel <anup.patel@wdc.com>
> ---
> hw/riscv/virt.c | 530 +++++++++++++++++++++++-----------------
> include/hw/riscv/virt.h | 9 +-
> 2 files changed, 308 insertions(+), 231 deletions(-)
>
> diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
> index 421815081d..2863b42cea 100644
> --- a/hw/riscv/virt.c
> +++ b/hw/riscv/virt.c
> @@ -35,6 +35,7 @@
> #include "hw/riscv/sifive_test.h"
> #include "hw/riscv/virt.h"
> #include "hw/riscv/boot.h"
> +#include "hw/riscv/numa.h"
> #include "chardev/char.h"
> #include "sysemu/arch_init.h"
> #include "sysemu/device_tree.h"
> @@ -60,7 +61,7 @@ static const struct MemmapEntry {
> [VIRT_TEST] = { 0x100000, 0x1000 },
> [VIRT_RTC] = { 0x101000, 0x1000 },
> [VIRT_CLINT] = { 0x2000000, 0x10000 },
> - [VIRT_PLIC] = { 0xc000000, 0x4000000 },
> + [VIRT_PLIC] = { 0xc000000, VIRT_PLIC_SIZE(VIRT_CPUS_MAX * 2) },
> [VIRT_UART0] = { 0x10000000, 0x100 },
> [VIRT_VIRTIO] = { 0x10001000, 0x1000 },
> [VIRT_FLASH] = { 0x20000000, 0x4000000 },
> @@ -182,10 +183,17 @@ static void create_fdt(RISCVVirtState *s, const struct
> MemmapEntry *memmap,
> uint64_t mem_size, const char *cmdline)
> {
> void *fdt;
> - int cpu, i;
> - uint32_t *cells;
> - char *nodename;
> - uint32_t plic_phandle, test_phandle, phandle = 1;
> + int i, cpu, socket;
> + MachineState *mc = MACHINE(s);
> + uint64_t addr, size;
> + uint32_t *clint_cells, *plic_cells;
> + unsigned long clint_addr, plic_addr;
> + uint32_t plic_phandle[MAX_NODES];
> + uint32_t cpu_phandle, intc_phandle, test_phandle;
> + uint32_t phandle = 1, plic_mmio_phandle = 1;
> + uint32_t plic_pcie_phandle = 1, plic_virtio_phandle = 1;
> + char *mem_name, *cpu_name, *core_name, *intc_name;
> + char *name, *clint_name, *plic_name, *clust_name;
> hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2;
> hwaddr flashbase = virt_memmap[VIRT_FLASH].base;
>
> @@ -206,231 +214,238 @@ static void create_fdt(RISCVVirtState *s, const
> struct MemmapEntry *memmap,
> qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2);
> qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2);
>
> - nodename = g_strdup_printf("/memory@%lx",
> - (long)memmap[VIRT_DRAM].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> - memmap[VIRT_DRAM].base >> 32, memmap[VIRT_DRAM].base,
> - mem_size >> 32, mem_size);
> - qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory");
> - g_free(nodename);
> -
> qemu_fdt_add_subnode(fdt, "/cpus");
> qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency",
> SIFIVE_CLINT_TIMEBASE_FREQ);
> qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0);
> qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1);
> + qemu_fdt_add_subnode(fdt, "/cpus/cpu-map");
I'm no expert with cpu-map. Do you mind CCing Atish in the next
version and see if he can Ack these DT changes?
> +
> + for (socket = (riscv_socket_count(mc) - 1); socket >= 0; socket--) {
> + clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket);
> + qemu_fdt_add_subnode(fdt, clust_name);
> +
> + plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4);
> + clint_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4);
> +
> + for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) {
> + cpu_phandle = phandle++;
>
> - for (cpu = s->soc.num_harts - 1; cpu >= 0; cpu--) {
> - int cpu_phandle = phandle++;
> - int intc_phandle;
> - nodename = g_strdup_printf("/cpus/cpu@%d", cpu);
> - char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller",
> cpu);
> - char *isa = riscv_isa_string(&s->soc.harts[cpu]);
> - qemu_fdt_add_subnode(fdt, nodename);
> + cpu_name = g_strdup_printf("/cpus/cpu@%d",
> + s->soc[socket].hartid_base + cpu);
> + qemu_fdt_add_subnode(fdt, cpu_name);
> #if defined(TARGET_RISCV32)
> - qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv32");
> + qemu_fdt_setprop_string(fdt, cpu_name, "mmu-type", "riscv,sv32");
> #else
> - qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48");
> + qemu_fdt_setprop_string(fdt, cpu_name, "mmu-type", "riscv,sv48");
> #endif
> - qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", isa);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv");
> - qemu_fdt_setprop_string(fdt, nodename, "status", "okay");
> - qemu_fdt_setprop_cell(fdt, nodename, "reg", cpu);
> - qemu_fdt_setprop_string(fdt, nodename, "device_type", "cpu");
> - qemu_fdt_setprop_cell(fdt, nodename, "phandle", cpu_phandle);
> - intc_phandle = phandle++;
> - qemu_fdt_add_subnode(fdt, intc);
> - qemu_fdt_setprop_cell(fdt, intc, "phandle", intc_phandle);
> - qemu_fdt_setprop_string(fdt, intc, "compatible", "riscv,cpu-intc");
> - qemu_fdt_setprop(fdt, intc, "interrupt-controller", NULL, 0);
> - qemu_fdt_setprop_cell(fdt, intc, "#interrupt-cells", 1);
> - g_free(isa);
> - g_free(intc);
> - g_free(nodename);
> - }
> + name = riscv_isa_string(&s->soc[socket].harts[cpu]);
> + qemu_fdt_setprop_string(fdt, cpu_name, "riscv,isa", name);
> + g_free(name);
> + qemu_fdt_setprop_string(fdt, cpu_name, "compatible", "riscv");
> + qemu_fdt_setprop_string(fdt, cpu_name, "status", "okay");
> + qemu_fdt_setprop_cell(fdt, cpu_name, "reg",
> + s->soc[socket].hartid_base + cpu);
> + qemu_fdt_setprop_string(fdt, cpu_name, "device_type", "cpu");
> + riscv_socket_fdt_write_id(mc, fdt, cpu_name, socket);
> + qemu_fdt_setprop_cell(fdt, cpu_name, "phandle", cpu_phandle);
> +
> + intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name);
> + qemu_fdt_add_subnode(fdt, intc_name);
> + intc_phandle = phandle++;
> + qemu_fdt_setprop_cell(fdt, intc_name, "phandle", intc_phandle);
> + qemu_fdt_setprop_string(fdt, intc_name, "compatible",
> + "riscv,cpu-intc");
> + qemu_fdt_setprop(fdt, intc_name, "interrupt-controller", NULL,
> 0);
> + qemu_fdt_setprop_cell(fdt, intc_name, "#interrupt-cells", 1);
> +
> + clint_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle);
> + clint_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT);
> + clint_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle);
> + clint_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER);
> +
> + plic_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle);
> + plic_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT);
> + plic_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle);
> + plic_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT);
> +
> + core_name = g_strdup_printf("%s/core%d", clust_name, cpu);
> + qemu_fdt_add_subnode(fdt, core_name);
> + qemu_fdt_setprop_cell(fdt, core_name, "cpu", cpu_phandle);
> +
> + g_free(core_name);
> + g_free(intc_name);
> + g_free(cpu_name);
> + }
>
> - /* Add cpu-topology node */
> - qemu_fdt_add_subnode(fdt, "/cpus/cpu-map");
> - qemu_fdt_add_subnode(fdt, "/cpus/cpu-map/cluster0");
> - for (cpu = s->soc.num_harts - 1; cpu >= 0; cpu--) {
> - char *core_nodename =
> g_strdup_printf("/cpus/cpu-map/cluster0/core%d",
> - cpu);
> - char *cpu_nodename = g_strdup_printf("/cpus/cpu@%d", cpu);
> - uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, cpu_nodename);
> - qemu_fdt_add_subnode(fdt, core_nodename);
> - qemu_fdt_setprop_cell(fdt, core_nodename, "cpu", intc_phandle);
> - g_free(core_nodename);
> - g_free(cpu_nodename);
> + addr = memmap[VIRT_DRAM].base + riscv_socket_mem_offset(mc, socket);
> + size = riscv_socket_mem_size(mc, socket);
> + mem_name = g_strdup_printf("/memory@%lx", (long)addr);
> + qemu_fdt_add_subnode(fdt, mem_name);
> + qemu_fdt_setprop_cells(fdt, mem_name, "reg",
> + addr >> 32, addr, size >> 32, size);
> + qemu_fdt_setprop_string(fdt, mem_name, "device_type", "memory");
> + riscv_socket_fdt_write_id(mc, fdt, mem_name, socket);
> + g_free(mem_name);
> +
> + clint_addr = memmap[VIRT_CLINT].base +
> + (memmap[VIRT_CLINT].size * socket);
> + clint_name = g_strdup_printf("/soc/clint@%lx", clint_addr);
> + qemu_fdt_add_subnode(fdt, clint_name);
> + qemu_fdt_setprop_string(fdt, clint_name, "compatible",
> "riscv,clint0");
> + qemu_fdt_setprop_cells(fdt, clint_name, "reg",
> + 0x0, clint_addr, 0x0, memmap[VIRT_CLINT].size);
> + qemu_fdt_setprop(fdt, clint_name, "interrupts-extended",
> + clint_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4);
> + riscv_socket_fdt_write_id(mc, fdt, clint_name, socket);
> + g_free(clint_name);
> +
> + plic_phandle[socket] = phandle++;
> + plic_addr = memmap[VIRT_PLIC].base + (memmap[VIRT_PLIC].size *
> socket);
> + plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr);
> + qemu_fdt_add_subnode(fdt, plic_name);
> + qemu_fdt_setprop_cell(fdt, plic_name,
> + "#address-cells", FDT_PLIC_ADDR_CELLS);
> + qemu_fdt_setprop_cell(fdt, plic_name,
> + "#interrupt-cells", FDT_PLIC_INT_CELLS);
> + qemu_fdt_setprop_string(fdt, plic_name, "compatible", "riscv,plic0");
> + qemu_fdt_setprop(fdt, plic_name, "interrupt-controller", NULL, 0);
> + qemu_fdt_setprop(fdt, plic_name, "interrupts-extended",
> + plic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4);
> + qemu_fdt_setprop_cells(fdt, plic_name, "reg",
> + 0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size);
> + qemu_fdt_setprop_cell(fdt, plic_name, "riscv,ndev", VIRTIO_NDEV);
> + riscv_socket_fdt_write_id(mc, fdt, plic_name, socket);
> + qemu_fdt_setprop_cell(fdt, plic_name, "phandle",
> plic_phandle[socket]);
> + g_free(plic_name);
> +
> + g_free(clint_cells);
> + g_free(plic_cells);
> + g_free(clust_name);
> }
>
> - cells = g_new0(uint32_t, s->soc.num_harts * 4);
> - for (cpu = 0; cpu < s->soc.num_harts; cpu++) {
> - nodename =
> - g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu);
> - uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename);
> - cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle);
> - cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT);
> - cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle);
> - cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER);
> - g_free(nodename);
> - }
> - nodename = g_strdup_printf("/soc/clint@%lx",
> - (long)memmap[VIRT_CLINT].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,clint0");
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> - 0x0, memmap[VIRT_CLINT].base,
> - 0x0, memmap[VIRT_CLINT].size);
> - qemu_fdt_setprop(fdt, nodename, "interrupts-extended",
> - cells, s->soc.num_harts * sizeof(uint32_t) * 4);
> - g_free(cells);
> - g_free(nodename);
> -
> - plic_phandle = phandle++;
> - cells = g_new0(uint32_t, s->soc.num_harts * 4);
> - for (cpu = 0; cpu < s->soc.num_harts; cpu++) {
> - nodename =
> - g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu);
> - uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename);
> - cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle);
> - cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT);
> - cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle);
> - cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT);
> - g_free(nodename);
> + for (socket = 0; socket < riscv_socket_count(mc); socket++) {
> + if (socket == 0) {
> + plic_mmio_phandle = plic_phandle[socket];
> + plic_virtio_phandle = plic_phandle[socket];
> + plic_pcie_phandle = plic_phandle[socket];
> + }
> + if (socket == 1) {
> + plic_virtio_phandle = plic_phandle[socket];
> + plic_pcie_phandle = plic_phandle[socket];
> + }
> + if (socket == 2) {
> + plic_pcie_phandle = plic_phandle[socket];
> + }
> }
> - nodename = g_strdup_printf("/soc/interrupt-controller@%lx",
> - (long)memmap[VIRT_PLIC].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_cell(fdt, nodename, "#address-cells",
> - FDT_PLIC_ADDR_CELLS);
> - qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells",
> - FDT_PLIC_INT_CELLS);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,plic0");
> - qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0);
> - qemu_fdt_setprop(fdt, nodename, "interrupts-extended",
> - cells, s->soc.num_harts * sizeof(uint32_t) * 4);
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> - 0x0, memmap[VIRT_PLIC].base,
> - 0x0, memmap[VIRT_PLIC].size);
> - qemu_fdt_setprop_cell(fdt, nodename, "riscv,ndev", VIRTIO_NDEV);
> - qemu_fdt_setprop_cell(fdt, nodename, "phandle", plic_phandle);
> - plic_phandle = qemu_fdt_get_phandle(fdt, nodename);
> - g_free(cells);
> - g_free(nodename);
> +
> + riscv_socket_fdt_write_distance_matrix(mc, fdt);
>
> for (i = 0; i < VIRTIO_COUNT; i++) {
> - nodename = g_strdup_printf("/virtio_mmio@%lx",
> + name = g_strdup_printf("/soc/virtio_mmio@%lx",
> (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size));
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "virtio,mmio");
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_string(fdt, name, "compatible", "virtio,mmio");
> + qemu_fdt_setprop_cells(fdt, name, "reg",
> 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size,
> 0x0, memmap[VIRT_VIRTIO].size);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent",
> plic_phandle);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupts", VIRTIO_IRQ + i);
> - g_free(nodename);
> + qemu_fdt_setprop_cell(fdt, name, "interrupt-parent",
> + plic_virtio_phandle);
> + qemu_fdt_setprop_cell(fdt, name, "interrupts", VIRTIO_IRQ + i);
> + g_free(name);
> }
>
> - nodename = g_strdup_printf("/soc/pci@%lx",
> + name = g_strdup_printf("/soc/pci@%lx",
> (long) memmap[VIRT_PCIE_ECAM].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_cell(fdt, nodename, "#address-cells",
> - FDT_PCI_ADDR_CELLS);
> - qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells",
> - FDT_PCI_INT_CELLS);
> - qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0x2);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible",
> - "pci-host-ecam-generic");
> - qemu_fdt_setprop_string(fdt, nodename, "device_type", "pci");
> - qemu_fdt_setprop_cell(fdt, nodename, "linux,pci-domain", 0);
> - qemu_fdt_setprop_cells(fdt, nodename, "bus-range", 0,
> - memmap[VIRT_PCIE_ECAM].size /
> - PCIE_MMCFG_SIZE_MIN - 1);
> - qemu_fdt_setprop(fdt, nodename, "dma-coherent", NULL, 0);
> - qemu_fdt_setprop_cells(fdt, nodename, "reg", 0,
> memmap[VIRT_PCIE_ECAM].base,
> - 0, memmap[VIRT_PCIE_ECAM].size);
> - qemu_fdt_setprop_sized_cells(fdt, nodename, "ranges",
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_cell(fdt, name, "#address-cells", FDT_PCI_ADDR_CELLS);
> + qemu_fdt_setprop_cell(fdt, name, "#interrupt-cells", FDT_PCI_INT_CELLS);
> + qemu_fdt_setprop_cell(fdt, name, "#size-cells", 0x2);
> + qemu_fdt_setprop_string(fdt, name, "compatible",
> "pci-host-ecam-generic");
> + qemu_fdt_setprop_string(fdt, name, "device_type", "pci");
> + qemu_fdt_setprop_cell(fdt, name, "linux,pci-domain", 0);
> + qemu_fdt_setprop_cells(fdt, name, "bus-range", 0,
> + memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1);
> + qemu_fdt_setprop(fdt, name, "dma-coherent", NULL, 0);
> + qemu_fdt_setprop_cells(fdt, name, "reg", 0,
> + memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size);
> + qemu_fdt_setprop_sized_cells(fdt, name, "ranges",
> 1, FDT_PCI_RANGE_IOPORT, 2, 0,
> 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size,
> 1, FDT_PCI_RANGE_MMIO,
> 2, memmap[VIRT_PCIE_MMIO].base,
> 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size);
> - create_pcie_irq_map(fdt, nodename, plic_phandle);
> - g_free(nodename);
> + create_pcie_irq_map(fdt, name, plic_pcie_phandle);
> + g_free(name);
>
> test_phandle = phandle++;
> - nodename = g_strdup_printf("/test@%lx",
> + name = g_strdup_printf("/soc/test@%lx",
> (long)memmap[VIRT_TEST].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> + qemu_fdt_add_subnode(fdt, name);
> {
> const char compat[] = "sifive,test1\0sifive,test0\0syscon";
> - qemu_fdt_setprop(fdt, nodename, "compatible", compat,
> sizeof(compat));
> + qemu_fdt_setprop(fdt, name, "compatible", compat, sizeof(compat));
> }
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> + qemu_fdt_setprop_cells(fdt, name, "reg",
> 0x0, memmap[VIRT_TEST].base,
> 0x0, memmap[VIRT_TEST].size);
> - qemu_fdt_setprop_cell(fdt, nodename, "phandle", test_phandle);
> - test_phandle = qemu_fdt_get_phandle(fdt, nodename);
> - g_free(nodename);
> -
> - nodename = g_strdup_printf("/reboot");
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "syscon-reboot");
> - qemu_fdt_setprop_cell(fdt, nodename, "regmap", test_phandle);
> - qemu_fdt_setprop_cell(fdt, nodename, "offset", 0x0);
> - qemu_fdt_setprop_cell(fdt, nodename, "value", FINISHER_RESET);
> - g_free(nodename);
> -
> - nodename = g_strdup_printf("/poweroff");
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "syscon-poweroff");
> - qemu_fdt_setprop_cell(fdt, nodename, "regmap", test_phandle);
> - qemu_fdt_setprop_cell(fdt, nodename, "offset", 0x0);
> - qemu_fdt_setprop_cell(fdt, nodename, "value", FINISHER_PASS);
> - g_free(nodename);
> -
> - nodename = g_strdup_printf("/uart@%lx",
> - (long)memmap[VIRT_UART0].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible", "ns16550a");
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> + qemu_fdt_setprop_cell(fdt, name, "phandle", test_phandle);
> + test_phandle = qemu_fdt_get_phandle(fdt, name);
> + g_free(name);
> +
> + name = g_strdup_printf("/soc/reboot");
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_string(fdt, name, "compatible", "syscon-reboot");
> + qemu_fdt_setprop_cell(fdt, name, "regmap", test_phandle);
> + qemu_fdt_setprop_cell(fdt, name, "offset", 0x0);
> + qemu_fdt_setprop_cell(fdt, name, "value", FINISHER_RESET);
> + g_free(name);
> +
> + name = g_strdup_printf("/soc/poweroff");
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_string(fdt, name, "compatible", "syscon-poweroff");
> + qemu_fdt_setprop_cell(fdt, name, "regmap", test_phandle);
> + qemu_fdt_setprop_cell(fdt, name, "offset", 0x0);
> + qemu_fdt_setprop_cell(fdt, name, "value", FINISHER_PASS);
> + g_free(name);
> +
> + name = g_strdup_printf("/soc/uart@%lx", (long)memmap[VIRT_UART0].base);
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_string(fdt, name, "compatible", "ns16550a");
> + qemu_fdt_setprop_cells(fdt, name, "reg",
> 0x0, memmap[VIRT_UART0].base,
> 0x0, memmap[VIRT_UART0].size);
> - qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", 3686400);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupts", UART0_IRQ);
> + qemu_fdt_setprop_cell(fdt, name, "clock-frequency", 3686400);
> + qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", plic_mmio_phandle);
> + qemu_fdt_setprop_cell(fdt, name, "interrupts", UART0_IRQ);
>
> qemu_fdt_add_subnode(fdt, "/chosen");
> - qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
> + qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", name);
> if (cmdline) {
> qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
> }
> - g_free(nodename);
> -
> - nodename = g_strdup_printf("/rtc@%lx",
> - (long)memmap[VIRT_RTC].base);
> - qemu_fdt_add_subnode(fdt, nodename);
> - qemu_fdt_setprop_string(fdt, nodename, "compatible",
> - "google,goldfish-rtc");
> - qemu_fdt_setprop_cells(fdt, nodename, "reg",
> + g_free(name);
> +
> + name = g_strdup_printf("/soc/rtc@%lx", (long)memmap[VIRT_RTC].base);
> + qemu_fdt_add_subnode(fdt, name);
> + qemu_fdt_setprop_string(fdt, name, "compatible", "google,goldfish-rtc");
> + qemu_fdt_setprop_cells(fdt, name, "reg",
> 0x0, memmap[VIRT_RTC].base,
> 0x0, memmap[VIRT_RTC].size);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle);
> - qemu_fdt_setprop_cell(fdt, nodename, "interrupts", RTC_IRQ);
> - g_free(nodename);
> -
> - nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
> - qemu_fdt_add_subnode(s->fdt, nodename);
> - qemu_fdt_setprop_string(s->fdt, nodename, "compatible", "cfi-flash");
> - qemu_fdt_setprop_sized_cells(s->fdt, nodename, "reg",
> + qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", plic_mmio_phandle);
> + qemu_fdt_setprop_cell(fdt, name, "interrupts", RTC_IRQ);
> + g_free(name);
> +
> + name = g_strdup_printf("/soc/flash@%" PRIx64, flashbase);
> + qemu_fdt_add_subnode(s->fdt, name);
> + qemu_fdt_setprop_string(s->fdt, name, "compatible", "cfi-flash");
> + qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
> 2, flashbase, 2, flashsize,
> 2, flashbase + flashsize, 2, flashsize);
> - qemu_fdt_setprop_cell(s->fdt, nodename, "bank-width", 4);
> - g_free(nodename);
> + qemu_fdt_setprop_cell(s->fdt, name, "bank-width", 4);
> + g_free(name);
> }
>
> -
> static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem,
> hwaddr ecam_base, hwaddr ecam_size,
> hwaddr mmio_base, hwaddr mmio_size,
> @@ -478,21 +493,100 @@ static void riscv_virt_board_init(MachineState
> *machine)
> MemoryRegion *system_memory = get_system_memory();
> MemoryRegion *main_mem = g_new(MemoryRegion, 1);
> MemoryRegion *mask_rom = g_new(MemoryRegion, 1);
> - char *plic_hart_config;
> + char *plic_hart_config, *soc_name;
> size_t plic_hart_config_len;
> target_ulong start_addr = memmap[VIRT_DRAM].base;
> - int i;
> - unsigned int smp_cpus = machine->smp.cpus;
> -
> - /* Initialize SOC */
> - object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
> - TYPE_RISCV_HART_ARRAY, &error_abort, NULL);
> - object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
> - &error_abort);
> - object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
> - &error_abort);
> - object_property_set_bool(OBJECT(&s->soc), true, "realized",
> - &error_abort);
> + DeviceState *mmio_plic, *virtio_plic, *pcie_plic;
> + int i, j, base_hartid, hart_count;
> +
> + /* Check socket count limit */
> + if (VIRT_SOCKETS_MAX < riscv_socket_count(machine)) {
> + error_report("number of sockets/nodes should be less than %d",
> + VIRT_SOCKETS_MAX);
> + exit(1);
> + }
> +
> + /* Initialize sockets */
> + mmio_plic = virtio_plic = pcie_plic = NULL;
> + for (i = 0; i < riscv_socket_count(machine); 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);
> + }
> +
> + soc_name = g_strdup_printf("soc%d", i);
> + object_initialize_child(OBJECT(machine), soc_name, &s->soc[i],
> + sizeof(s->soc[i]), TYPE_RISCV_HART_ARRAY, &error_abort, NULL);
> + g_free(soc_name);
> + object_property_set_str(OBJECT(&s->soc[i]),
> + machine->cpu_type, "cpu-type", &error_abort);
> + object_property_set_int(OBJECT(&s->soc[i]),
> + base_hartid, "hartid-base", &error_abort);
> + object_property_set_int(OBJECT(&s->soc[i]),
> + hart_count, "num-harts", &error_abort);
> + object_property_set_bool(OBJECT(&s->soc[i]),
> + true, "realized", &error_abort);
> +
> + /* Per-socket CLINT */
> + sifive_clint_create(
> + memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size,
> + memmap[VIRT_CLINT].size, base_hartid, hart_count,
> + SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE, true);
> +
> + /* Per-socket PLIC hart topology configuration string */
> + plic_hart_config_len =
> + (strlen(VIRT_PLIC_HART_CONFIG) + 1) * hart_count;
> + plic_hart_config = g_malloc0(plic_hart_config_len);
> + for (j = 0; j < hart_count; j++) {
> + if (j != 0) {
> + strncat(plic_hart_config, ",", plic_hart_config_len);
> + }
> + strncat(plic_hart_config, VIRT_PLIC_HART_CONFIG,
> + plic_hart_config_len);
> + plic_hart_config_len -= (strlen(VIRT_PLIC_HART_CONFIG) + 1);
> + }
> +
> + /* Per-socket PLIC */
> + s->plic[i] = sifive_plic_create(
> + memmap[VIRT_PLIC].base + i * memmap[VIRT_PLIC].size,
> + plic_hart_config, base_hartid,
> + VIRT_PLIC_NUM_SOURCES,
> + VIRT_PLIC_NUM_PRIORITIES,
> + VIRT_PLIC_PRIORITY_BASE,
> + VIRT_PLIC_PENDING_BASE,
> + VIRT_PLIC_ENABLE_BASE,
> + VIRT_PLIC_ENABLE_STRIDE,
> + VIRT_PLIC_CONTEXT_BASE,
> + VIRT_PLIC_CONTEXT_STRIDE,
> + memmap[VIRT_PLIC].size);
> + g_free(plic_hart_config);
> +
> + /* Try to use different PLIC instance based device type */
Why do we have different types of PLICs?
> + if (i == 0) {
> + mmio_plic = s->plic[i];
> + virtio_plic = s->plic[i];
> + pcie_plic = s->plic[i];
> + }
> + if (i == 1) {
> + virtio_plic = s->plic[i];
> + pcie_plic = s->plic[i];
> + }
> + if (i == 2) {
> + pcie_plic = s->plic[i];
> + }
> + }
>
> /* register system main memory (actual RAM) */
> memory_region_init_ram(main_mem, NULL, "riscv_virt_board.ram",
> @@ -571,38 +665,14 @@ static void riscv_virt_board_init(MachineState *machine)
> memmap[VIRT_MROM].base + sizeof(reset_vec),
> &address_space_memory);
>
> - /* create PLIC hart topology configuration string */
> - plic_hart_config_len = (strlen(VIRT_PLIC_HART_CONFIG) + 1) * smp_cpus;
> - plic_hart_config = g_malloc0(plic_hart_config_len);
> - for (i = 0; i < smp_cpus; i++) {
> - if (i != 0) {
> - strncat(plic_hart_config, ",", plic_hart_config_len);
> - }
> - strncat(plic_hart_config, VIRT_PLIC_HART_CONFIG,
> plic_hart_config_len);
> - plic_hart_config_len -= (strlen(VIRT_PLIC_HART_CONFIG) + 1);
> - }
> -
> - /* MMIO */
> - s->plic = sifive_plic_create(memmap[VIRT_PLIC].base,
> - plic_hart_config, 0,
> - VIRT_PLIC_NUM_SOURCES,
> - VIRT_PLIC_NUM_PRIORITIES,
> - VIRT_PLIC_PRIORITY_BASE,
> - VIRT_PLIC_PENDING_BASE,
> - VIRT_PLIC_ENABLE_BASE,
> - VIRT_PLIC_ENABLE_STRIDE,
> - VIRT_PLIC_CONTEXT_BASE,
> - VIRT_PLIC_CONTEXT_STRIDE,
> - memmap[VIRT_PLIC].size);
> - sifive_clint_create(memmap[VIRT_CLINT].base,
> - memmap[VIRT_CLINT].size, 0, smp_cpus,
> - SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE, true);
> + /* SiFive Test MMIO device */
> sifive_test_create(memmap[VIRT_TEST].base);
>
> + /* VirtIO MMIO devices */
> for (i = 0; i < VIRTIO_COUNT; i++) {
> sysbus_create_simple("virtio-mmio",
> memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size,
> - qdev_get_gpio_in(DEVICE(s->plic), VIRTIO_IRQ + i));
> + qdev_get_gpio_in(DEVICE(virtio_plic), VIRTIO_IRQ + i));
> }
>
> gpex_pcie_init(system_memory,
> @@ -611,14 +681,14 @@ static void riscv_virt_board_init(MachineState *machine)
> memmap[VIRT_PCIE_MMIO].base,
> memmap[VIRT_PCIE_MMIO].size,
> memmap[VIRT_PCIE_PIO].base,
> - DEVICE(s->plic), true);
> + DEVICE(pcie_plic), true);
>
> serial_mm_init(system_memory, memmap[VIRT_UART0].base,
> - 0, qdev_get_gpio_in(DEVICE(s->plic), UART0_IRQ), 399193,
> + 0, qdev_get_gpio_in(DEVICE(mmio_plic), UART0_IRQ), 399193,
> serial_hd(0), DEVICE_LITTLE_ENDIAN);
>
> sysbus_create_simple("goldfish_rtc", memmap[VIRT_RTC].base,
> - qdev_get_gpio_in(DEVICE(s->plic), RTC_IRQ));
> + qdev_get_gpio_in(DEVICE(mmio_plic), RTC_IRQ));
>
> virt_flash_create(s);
>
> @@ -628,8 +698,6 @@ static void riscv_virt_board_init(MachineState *machine)
> drive_get(IF_PFLASH, 0, i));
> }
> virt_flash_map(s, system_memory);
> -
> - g_free(plic_hart_config);
> }
>
> static void riscv_virt_machine_instance_init(Object *obj)
> @@ -642,9 +710,13 @@ static void riscv_virt_machine_class_init(ObjectClass
> *oc, void *data)
>
> mc->desc = "RISC-V VirtIO board";
> mc->init = riscv_virt_board_init;
> - mc->max_cpus = 8;
> + mc->max_cpus = VIRT_CPUS_MAX;
> mc->default_cpu_type = VIRT_CPU;
> mc->pci_allow_0_address = true;
> + 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;
> }
>
> static const TypeInfo riscv_virt_machine_typeinfo = {
> diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h
> index e69355efaf..1beacd7666 100644
> --- a/include/hw/riscv/virt.h
> +++ b/include/hw/riscv/virt.h
> @@ -23,6 +23,9 @@
> #include "hw/sysbus.h"
> #include "hw/block/flash.h"
>
> +#define VIRT_CPUS_MAX 8
> +#define VIRT_SOCKETS_MAX 8
> +
> #define TYPE_RISCV_VIRT_MACHINE MACHINE_TYPE_NAME("virt")
> #define RISCV_VIRT_MACHINE(obj) \
> OBJECT_CHECK(RISCVVirtState, (obj), TYPE_RISCV_VIRT_MACHINE)
> @@ -32,8 +35,8 @@ typedef struct {
> MachineState parent;
>
> /*< public >*/
> - RISCVHartArrayState soc;
> - DeviceState *plic;
> + RISCVHartArrayState soc[VIRT_SOCKETS_MAX];
> + DeviceState *plic[VIRT_SOCKETS_MAX];
> PFlashCFI01 *flash[2];
>
> void *fdt;
> @@ -74,6 +77,8 @@ enum {
> #define VIRT_PLIC_ENABLE_STRIDE 0x80
> #define VIRT_PLIC_CONTEXT_BASE 0x200000
> #define VIRT_PLIC_CONTEXT_STRIDE 0x1000
> +#define VIRT_PLIC_SIZE(__num_context) \
> + (VIRT_PLIC_CONTEXT_BASE + (__num_context) * VIRT_PLIC_CONTEXT_STRIDE)
>
> #define FDT_PCI_ADDR_CELLS 3
> #define FDT_PCI_INT_CELLS 1
> --
> 2.25.1
>
>
- Re: [PATCH v5 5/5] hw/riscv: virt: Allow creating multiple NUMA sockets,
Alistair Francis <=