diff options
| -rw-r--r-- | hw/riscv/Kconfig | 1 | ||||
| -rw-r--r-- | hw/riscv/virt.c | 439 | ||||
| -rw-r--r-- | include/hw/riscv/virt.h | 17 |
3 files changed, 373 insertions, 84 deletions
diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig index c30bb7c..91bb9d2 100644 --- a/hw/riscv/Kconfig +++ b/hw/riscv/Kconfig @@ -43,6 +43,7 @@ config RISCV_VIRT select SERIAL select RISCV_ACLINT select RISCV_APLIC + select RISCV_IMSIC select SIFIVE_PLIC select SIFIVE_TEST select VIRTIO_MMIO diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 6b06f79..94fbf63 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -34,6 +34,7 @@ #include "hw/riscv/numa.h" #include "hw/intc/riscv_aclint.h" #include "hw/intc/riscv_aplic.h" +#include "hw/intc/riscv_imsic.h" #include "hw/intc/sifive_plic.h" #include "hw/misc/sifive_test.h" #include "chardev/char.h" @@ -44,6 +45,18 @@ #include "hw/pci-host/gpex.h" #include "hw/display/ramfb.h" +#define VIRT_IMSIC_GROUP_MAX_SIZE (1U << IMSIC_MMIO_GROUP_MIN_SHIFT) +#if VIRT_IMSIC_GROUP_MAX_SIZE < \ + IMSIC_GROUP_SIZE(VIRT_CPUS_MAX_BITS, VIRT_IRQCHIP_MAX_GUESTS_BITS) +#error "Can't accomodate single IMSIC group in address space" +#endif + +#define VIRT_IMSIC_MAX_SIZE (VIRT_SOCKETS_MAX * \ + VIRT_IMSIC_GROUP_MAX_SIZE) +#if 0x4000000 < VIRT_IMSIC_MAX_SIZE +#error "Can't accomodate all IMSIC groups in address space" +#endif + static const MemMapEntry virt_memmap[] = { [VIRT_DEBUG] = { 0x0, 0x100 }, [VIRT_MROM] = { 0x1000, 0xf000 }, @@ -59,6 +72,8 @@ static const MemMapEntry virt_memmap[] = { [VIRT_VIRTIO] = { 0x10001000, 0x1000 }, [VIRT_FW_CFG] = { 0x10100000, 0x18 }, [VIRT_FLASH] = { 0x20000000, 0x4000000 }, + [VIRT_IMSIC_M] = { 0x24000000, VIRT_IMSIC_MAX_SIZE }, + [VIRT_IMSIC_S] = { 0x28000000, VIRT_IMSIC_MAX_SIZE }, [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 }, [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 }, [VIRT_DRAM] = { 0x80000000, 0x0 }, @@ -310,7 +325,7 @@ static void create_fdt_socket_aclint(RISCVVirtState *s, { int cpu; char *name; - unsigned long addr; + unsigned long addr, size; uint32_t aclint_cells_size; uint32_t *aclint_mswi_cells; uint32_t *aclint_sswi_cells; @@ -331,29 +346,38 @@ static void create_fdt_socket_aclint(RISCVVirtState *s, } aclint_cells_size = s->soc[socket].num_harts * sizeof(uint32_t) * 2; - addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); - name = g_strdup_printf("/soc/mswi@%lx", addr); - qemu_fdt_add_subnode(mc->fdt, name); - qemu_fdt_setprop_string(mc->fdt, name, "compatible", "riscv,aclint-mswi"); - qemu_fdt_setprop_cells(mc->fdt, name, "reg", - 0x0, addr, 0x0, RISCV_ACLINT_SWI_SIZE); - qemu_fdt_setprop(mc->fdt, name, "interrupts-extended", - aclint_mswi_cells, aclint_cells_size); - qemu_fdt_setprop(mc->fdt, name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop_cell(mc->fdt, name, "#interrupt-cells", 0); - riscv_socket_fdt_write_id(mc, mc->fdt, name, socket); - g_free(name); + if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { + addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); + name = g_strdup_printf("/soc/mswi@%lx", addr); + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", + "riscv,aclint-mswi"); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", + 0x0, addr, 0x0, RISCV_ACLINT_SWI_SIZE); + qemu_fdt_setprop(mc->fdt, name, "interrupts-extended", + aclint_mswi_cells, aclint_cells_size); + qemu_fdt_setprop(mc->fdt, name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(mc->fdt, name, "#interrupt-cells", 0); + riscv_socket_fdt_write_id(mc, mc->fdt, name, socket); + g_free(name); + } - addr = memmap[VIRT_CLINT].base + RISCV_ACLINT_SWI_SIZE + - (memmap[VIRT_CLINT].size * socket); + if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { + addr = memmap[VIRT_CLINT].base + + (RISCV_ACLINT_DEFAULT_MTIMER_SIZE * socket); + size = RISCV_ACLINT_DEFAULT_MTIMER_SIZE; + } else { + addr = memmap[VIRT_CLINT].base + RISCV_ACLINT_SWI_SIZE + + (memmap[VIRT_CLINT].size * socket); + size = memmap[VIRT_CLINT].size - RISCV_ACLINT_SWI_SIZE; + } name = g_strdup_printf("/soc/mtimer@%lx", addr); qemu_fdt_add_subnode(mc->fdt, name); qemu_fdt_setprop_string(mc->fdt, name, "compatible", "riscv,aclint-mtimer"); qemu_fdt_setprop_cells(mc->fdt, name, "reg", 0x0, addr + RISCV_ACLINT_DEFAULT_MTIME, - 0x0, memmap[VIRT_CLINT].size - RISCV_ACLINT_SWI_SIZE - - RISCV_ACLINT_DEFAULT_MTIME, + 0x0, size - RISCV_ACLINT_DEFAULT_MTIME, 0x0, addr + RISCV_ACLINT_DEFAULT_MTIMECMP, 0x0, RISCV_ACLINT_DEFAULT_MTIME); qemu_fdt_setprop(mc->fdt, name, "interrupts-extended", @@ -361,19 +385,22 @@ static void create_fdt_socket_aclint(RISCVVirtState *s, riscv_socket_fdt_write_id(mc, mc->fdt, name, socket); g_free(name); - addr = memmap[VIRT_ACLINT_SSWI].base + - (memmap[VIRT_ACLINT_SSWI].size * socket); - name = g_strdup_printf("/soc/sswi@%lx", addr); - qemu_fdt_add_subnode(mc->fdt, name); - qemu_fdt_setprop_string(mc->fdt, name, "compatible", "riscv,aclint-sswi"); - qemu_fdt_setprop_cells(mc->fdt, name, "reg", - 0x0, addr, 0x0, memmap[VIRT_ACLINT_SSWI].size); - qemu_fdt_setprop(mc->fdt, name, "interrupts-extended", - aclint_sswi_cells, aclint_cells_size); - qemu_fdt_setprop(mc->fdt, name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop_cell(mc->fdt, name, "#interrupt-cells", 0); - riscv_socket_fdt_write_id(mc, mc->fdt, name, socket); - g_free(name); + if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { + addr = memmap[VIRT_ACLINT_SSWI].base + + (memmap[VIRT_ACLINT_SSWI].size * socket); + name = g_strdup_printf("/soc/sswi@%lx", addr); + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", + "riscv,aclint-sswi"); + qemu_fdt_setprop_cells(mc->fdt, name, "reg", + 0x0, addr, 0x0, memmap[VIRT_ACLINT_SSWI].size); + qemu_fdt_setprop(mc->fdt, name, "interrupts-extended", + aclint_sswi_cells, aclint_cells_size); + qemu_fdt_setprop(mc->fdt, name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(mc->fdt, name, "#interrupt-cells", 0); + riscv_socket_fdt_write_id(mc, mc->fdt, name, socket); + g_free(name); + } g_free(aclint_mswi_cells); g_free(aclint_mtimer_cells); @@ -435,10 +462,145 @@ static void create_fdt_socket_plic(RISCVVirtState *s, g_free(plic_cells); } -static void create_fdt_socket_aia(RISCVVirtState *s, - const MemMapEntry *memmap, int socket, - uint32_t *phandle, uint32_t *intc_phandles, - uint32_t *aplic_phandles) +static uint32_t imsic_num_bits(uint32_t count) +{ + uint32_t ret = 0; + + while (BIT(ret) < count) { + ret++; + } + + return ret; +} + +static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t *phandle, uint32_t *intc_phandles, + uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +{ + int cpu, socket; + char *imsic_name; + MachineState *mc = MACHINE(s); + uint32_t imsic_max_hart_per_socket, imsic_guest_bits; + uint32_t *imsic_cells, *imsic_regs, imsic_addr, imsic_size; + + *msi_m_phandle = (*phandle)++; + *msi_s_phandle = (*phandle)++; + imsic_cells = g_new0(uint32_t, mc->smp.cpus * 2); + imsic_regs = g_new0(uint32_t, riscv_socket_count(mc) * 4); + + /* M-level IMSIC node */ + for (cpu = 0; cpu < mc->smp.cpus; cpu++) { + imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); + imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_EXT); + } + imsic_max_hart_per_socket = 0; + for (socket = 0; socket < riscv_socket_count(mc); socket++) { + imsic_addr = memmap[VIRT_IMSIC_M].base + + socket * VIRT_IMSIC_GROUP_MAX_SIZE; + imsic_size = IMSIC_HART_SIZE(0) * 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)memmap[VIRT_IMSIC_M].base); + qemu_fdt_add_subnode(mc->fdt, imsic_name); + qemu_fdt_setprop_string(mc->fdt, imsic_name, "compatible", + "riscv,imsics"); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "#interrupt-cells", + FDT_IMSIC_INT_CELLS); + qemu_fdt_setprop(mc->fdt, imsic_name, "interrupt-controller", + NULL, 0); + qemu_fdt_setprop(mc->fdt, imsic_name, "msi-controller", + NULL, 0); + qemu_fdt_setprop(mc->fdt, imsic_name, "interrupts-extended", + imsic_cells, mc->smp.cpus * sizeof(uint32_t) * 2); + qemu_fdt_setprop(mc->fdt, imsic_name, "reg", imsic_regs, + riscv_socket_count(mc) * sizeof(uint32_t) * 4); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,num-ids", + VIRT_IRQCHIP_NUM_MSIS); + qemu_fdt_setprop_cells(mc->fdt, imsic_name, "riscv,ipi-id", + VIRT_IRQCHIP_IPI_MSI); + if (riscv_socket_count(mc) > 1) { + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,hart-index-bits", + imsic_num_bits(imsic_max_hart_per_socket)); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,group-index-bits", + imsic_num_bits(riscv_socket_count(mc))); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,group-index-shift", + IMSIC_MMIO_GROUP_MIN_SHIFT); + } + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "phandle", *msi_m_phandle); + g_free(imsic_name); + + /* S-level IMSIC node */ + for (cpu = 0; cpu < mc->smp.cpus; cpu++) { + imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); + imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); + } + imsic_guest_bits = imsic_num_bits(s->aia_guests + 1); + imsic_max_hart_per_socket = 0; + for (socket = 0; socket < riscv_socket_count(mc); socket++) { + imsic_addr = memmap[VIRT_IMSIC_S].base + + socket * VIRT_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)memmap[VIRT_IMSIC_S].base); + qemu_fdt_add_subnode(mc->fdt, imsic_name); + qemu_fdt_setprop_string(mc->fdt, imsic_name, "compatible", + "riscv,imsics"); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "#interrupt-cells", + FDT_IMSIC_INT_CELLS); + qemu_fdt_setprop(mc->fdt, imsic_name, "interrupt-controller", + NULL, 0); + qemu_fdt_setprop(mc->fdt, imsic_name, "msi-controller", + NULL, 0); + qemu_fdt_setprop(mc->fdt, imsic_name, "interrupts-extended", + imsic_cells, mc->smp.cpus * sizeof(uint32_t) * 2); + qemu_fdt_setprop(mc->fdt, imsic_name, "reg", imsic_regs, + riscv_socket_count(mc) * sizeof(uint32_t) * 4); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,num-ids", + VIRT_IRQCHIP_NUM_MSIS); + qemu_fdt_setprop_cells(mc->fdt, imsic_name, "riscv,ipi-id", + VIRT_IRQCHIP_IPI_MSI); + if (imsic_guest_bits) { + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,guest-index-bits", + imsic_guest_bits); + } + if (riscv_socket_count(mc) > 1) { + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,hart-index-bits", + imsic_num_bits(imsic_max_hart_per_socket)); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,group-index-bits", + imsic_num_bits(riscv_socket_count(mc))); + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "riscv,group-index-shift", + IMSIC_MMIO_GROUP_MIN_SHIFT); + } + qemu_fdt_setprop_cell(mc->fdt, imsic_name, "phandle", *msi_s_phandle); + g_free(imsic_name); + + g_free(imsic_regs); + g_free(imsic_cells); +} + +static void create_fdt_socket_aplic(RISCVVirtState *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 cpu; char *aplic_name; @@ -464,8 +626,13 @@ static void create_fdt_socket_aia(RISCVVirtState *s, qemu_fdt_setprop_cell(mc->fdt, aplic_name, "#interrupt-cells", FDT_APLIC_INT_CELLS); qemu_fdt_setprop(mc->fdt, aplic_name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop(mc->fdt, aplic_name, "interrupts-extended", - aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); + if (s->aia_type == VIRT_AIA_TYPE_APLIC) { + qemu_fdt_setprop(mc->fdt, aplic_name, "interrupts-extended", + aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); + } else { + qemu_fdt_setprop_cell(mc->fdt, aplic_name, "msi-parent", + msi_m_phandle); + } qemu_fdt_setprop_cells(mc->fdt, aplic_name, "reg", 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_M].size); qemu_fdt_setprop_cell(mc->fdt, aplic_name, "riscv,num-sources", @@ -491,8 +658,13 @@ static void create_fdt_socket_aia(RISCVVirtState *s, qemu_fdt_setprop_cell(mc->fdt, aplic_name, "#interrupt-cells", FDT_APLIC_INT_CELLS); qemu_fdt_setprop(mc->fdt, aplic_name, "interrupt-controller", NULL, 0); - qemu_fdt_setprop(mc->fdt, aplic_name, "interrupts-extended", - aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); + if (s->aia_type == VIRT_AIA_TYPE_APLIC) { + qemu_fdt_setprop(mc->fdt, aplic_name, "interrupts-extended", + aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); + } else { + qemu_fdt_setprop_cell(mc->fdt, aplic_name, "msi-parent", + msi_s_phandle); + } qemu_fdt_setprop_cells(mc->fdt, aplic_name, "reg", 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_S].size); qemu_fdt_setprop_cell(mc->fdt, aplic_name, "riscv,num-sources", @@ -509,13 +681,14 @@ static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, bool is_32_bit, uint32_t *phandle, uint32_t *irq_mmio_phandle, uint32_t *irq_pcie_phandle, - uint32_t *irq_virtio_phandle) + uint32_t *irq_virtio_phandle, + uint32_t *msi_pcie_phandle) { - int socket; char *clust_name; - uint32_t *intc_phandles; + int socket, phandle_pos; MachineState *mc = MACHINE(s); - uint32_t xplic_phandles[MAX_NODES]; + uint32_t msi_m_phandle = 0, msi_s_phandle = 0; + uint32_t *intc_phandles, xplic_phandles[MAX_NODES]; qemu_fdt_add_subnode(mc->fdt, "/cpus"); qemu_fdt_setprop_cell(mc->fdt, "/cpus", "timebase-frequency", @@ -524,37 +697,55 @@ static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, qemu_fdt_setprop_cell(mc->fdt, "/cpus", "#address-cells", 0x1); qemu_fdt_add_subnode(mc->fdt, "/cpus/cpu-map"); + intc_phandles = g_new0(uint32_t, mc->smp.cpus); + + phandle_pos = mc->smp.cpus; for (socket = (riscv_socket_count(mc) - 1); socket >= 0; socket--) { + phandle_pos -= s->soc[socket].num_harts; + clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); qemu_fdt_add_subnode(mc->fdt, clust_name); - intc_phandles = g_new0(uint32_t, s->soc[socket].num_harts); - create_fdt_socket_cpus(s, socket, clust_name, phandle, - is_32_bit, intc_phandles); + is_32_bit, &intc_phandles[phandle_pos]); create_fdt_socket_memory(s, memmap, socket); + g_free(clust_name); + if (!kvm_enabled()) { if (s->have_aclint) { - create_fdt_socket_aclint(s, memmap, socket, intc_phandles); + create_fdt_socket_aclint(s, memmap, socket, + &intc_phandles[phandle_pos]); } else { - create_fdt_socket_clint(s, memmap, socket, intc_phandles); + create_fdt_socket_clint(s, memmap, socket, + &intc_phandles[phandle_pos]); } } + } + + if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { + create_fdt_imsic(s, memmap, phandle, intc_phandles, + &msi_m_phandle, &msi_s_phandle); + *msi_pcie_phandle = msi_s_phandle; + } + + phandle_pos = mc->smp.cpus; + for (socket = (riscv_socket_count(mc) - 1); socket >= 0; socket--) { + phandle_pos -= s->soc[socket].num_harts; if (s->aia_type == VIRT_AIA_TYPE_NONE) { create_fdt_socket_plic(s, memmap, socket, phandle, - intc_phandles, xplic_phandles); + &intc_phandles[phandle_pos], xplic_phandles); } else { - create_fdt_socket_aia(s, memmap, socket, phandle, - intc_phandles, xplic_phandles); + create_fdt_socket_aplic(s, memmap, socket, + msi_m_phandle, msi_s_phandle, phandle, + &intc_phandles[phandle_pos], xplic_phandles); } - - g_free(intc_phandles); - g_free(clust_name); } + g_free(intc_phandles); + for (socket = 0; socket < riscv_socket_count(mc); socket++) { if (socket == 0) { *irq_mmio_phandle = xplic_phandles[socket]; @@ -602,7 +793,8 @@ static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, } static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, - uint32_t irq_pcie_phandle) + uint32_t irq_pcie_phandle, + uint32_t msi_pcie_phandle) { char *name; MachineState *mc = MACHINE(s); @@ -622,6 +814,9 @@ static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, qemu_fdt_setprop_cells(mc->fdt, name, "bus-range", 0, memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); qemu_fdt_setprop(mc->fdt, name, "dma-coherent", NULL, 0); + if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { + qemu_fdt_setprop_cell(mc->fdt, name, "msi-parent", msi_pcie_phandle); + } qemu_fdt_setprop_cells(mc->fdt, name, "reg", 0, memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size); qemu_fdt_setprop_sized_cells(mc->fdt, name, "ranges", @@ -747,7 +942,7 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, uint64_t mem_size, const char *cmdline, bool is_32_bit) { MachineState *mc = MACHINE(s); - uint32_t phandle = 1, irq_mmio_phandle = 1; + uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; if (mc->dtb) { @@ -777,11 +972,12 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, qemu_fdt_setprop_cell(mc->fdt, "/soc", "#address-cells", 0x2); create_fdt_sockets(s, memmap, is_32_bit, &phandle, - &irq_mmio_phandle, &irq_pcie_phandle, &irq_virtio_phandle); + &irq_mmio_phandle, &irq_pcie_phandle, &irq_virtio_phandle, + &msi_pcie_phandle); create_fdt_virtio(s, memmap, irq_virtio_phandle); - create_fdt_pcie(s, memmap, irq_pcie_phandle); + create_fdt_pcie(s, memmap, irq_pcie_phandle, msi_pcie_phandle); create_fdt_reset(s, memmap, &phandle); @@ -896,30 +1092,55 @@ static DeviceState *virt_create_plic(const MemMapEntry *memmap, int socket, return ret; } -static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, +static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, const MemMapEntry *memmap, int socket, int base_hartid, int hart_count) { + int i; + hwaddr addr; + uint32_t guest_bits; DeviceState *aplic_m; + bool msimode = (aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) ? true : false; + + if (msimode) { + /* Per-socket M-level IMSICs */ + addr = memmap[VIRT_IMSIC_M].base + socket * VIRT_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, + VIRT_IRQCHIP_NUM_MSIS); + } + + /* Per-socket S-level IMSICs */ + guest_bits = imsic_num_bits(aia_guests + 1); + addr = memmap[VIRT_IMSIC_S].base + socket * VIRT_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, + VIRT_IRQCHIP_NUM_MSIS); + } + } /* Per-socket M-level APLIC */ aplic_m = riscv_aplic_create( memmap[VIRT_APLIC_M].base + socket * memmap[VIRT_APLIC_M].size, memmap[VIRT_APLIC_M].size, - base_hartid, hart_count, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_PRIO_BITS, - false, true, NULL); + msimode, true, NULL); if (aplic_m) { /* Per-socket S-level APLIC */ riscv_aplic_create( memmap[VIRT_APLIC_S].base + socket * memmap[VIRT_APLIC_S].size, memmap[VIRT_APLIC_S].size, - base_hartid, hart_count, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_PRIO_BITS, - false, false, aplic_m); + msimode, false, aplic_m); } return aplic_m; @@ -979,23 +1200,43 @@ static void virt_machine_init(MachineState *machine) sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_abort); if (!kvm_enabled()) { - /* Per-socket CLINT */ - riscv_aclint_swi_create( - memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, - base_hartid, hart_count, false); - riscv_aclint_mtimer_create( - memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size + - RISCV_ACLINT_SWI_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 ACLINT SSWI */ if (s->have_aclint) { + if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { + /* Per-socket ACLINT MTIMER */ + riscv_aclint_mtimer_create(memmap[VIRT_CLINT].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); + } else { + /* Per-socket ACLINT MSWI, MTIMER, and SSWI */ + riscv_aclint_swi_create(memmap[VIRT_CLINT].base + + i * memmap[VIRT_CLINT].size, + base_hartid, hart_count, false); + riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + + i * memmap[VIRT_CLINT].size + + RISCV_ACLINT_SWI_SIZE, + RISCV_ACLINT_DEFAULT_MTIMER_SIZE, + base_hartid, hart_count, + RISCV_ACLINT_DEFAULT_MTIMECMP, + RISCV_ACLINT_DEFAULT_MTIME, + RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); + riscv_aclint_swi_create(memmap[VIRT_ACLINT_SSWI].base + + i * memmap[VIRT_ACLINT_SSWI].size, + base_hartid, hart_count, true); + } + } else { + /* Per-socket SiFive CLINT */ riscv_aclint_swi_create( - memmap[VIRT_ACLINT_SSWI].base + - i * memmap[VIRT_ACLINT_SSWI].size, - base_hartid, hart_count, true); + memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, + base_hartid, hart_count, false); + riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + + i * memmap[VIRT_CLINT].size + RISCV_ACLINT_SWI_SIZE, + RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, + RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, + RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); } } @@ -1004,8 +1245,9 @@ static void virt_machine_init(MachineState *machine) s->irqchip[i] = virt_create_plic(memmap, i, base_hartid, hart_count); } else { - s->irqchip[i] = virt_create_aia(s->aia_type, memmap, i, - base_hartid, hart_count); + s->irqchip[i] = virt_create_aia(s->aia_type, s->aia_guests, + memmap, i, base_hartid, + hart_count); } /* Try to use different IRQCHIP instance based device type */ @@ -1171,6 +1413,27 @@ static void virt_machine_instance_init(Object *obj) { } +static char *virt_get_aia_guests(Object *obj, Error **errp) +{ + RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); + char val[32]; + + sprintf(val, "%d", s->aia_guests); + return g_strdup(val); +} + +static void virt_set_aia_guests(Object *obj, const char *val, Error **errp) +{ + RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); + + s->aia_guests = atoi(val); + if (s->aia_guests < 0 || s->aia_guests > VIRT_IRQCHIP_MAX_GUESTS) { + error_setg(errp, "Invalid number of AIA IMSIC guests"); + error_append_hint(errp, "Valid values be between 0 and %d.\n", + VIRT_IRQCHIP_MAX_GUESTS); + } +} + static char *virt_get_aia(Object *obj, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); @@ -1180,6 +1443,9 @@ static char *virt_get_aia(Object *obj, Error **errp) case VIRT_AIA_TYPE_APLIC: val = "aplic"; break; + case VIRT_AIA_TYPE_APLIC_IMSIC: + val = "aplic-imsic"; + break; default: val = "none"; break; @@ -1196,9 +1462,12 @@ static void virt_set_aia(Object *obj, const char *val, Error **errp) s->aia_type = VIRT_AIA_TYPE_NONE; } else if (!strcmp(val, "aplic")) { s->aia_type = VIRT_AIA_TYPE_APLIC; + } else if (!strcmp(val, "aplic-imsic")) { + s->aia_type = VIRT_AIA_TYPE_APLIC_IMSIC; } else { error_setg(errp, "Invalid AIA interrupt controller type"); - error_append_hint(errp, "Valid values are none, and aplic.\n"); + error_append_hint(errp, "Valid values are none, aplic, and " + "aplic-imsic.\n"); } } @@ -1220,6 +1489,7 @@ static void virt_set_aclint(Object *obj, bool value, Error **errp) static void virt_machine_class_init(ObjectClass *oc, void *data) { + char str[128]; MachineClass *mc = MACHINE_CLASS(oc); mc->desc = "RISC-V VirtIO board"; @@ -1246,7 +1516,14 @@ static void virt_machine_class_init(ObjectClass *oc, void *data) object_class_property_set_description(oc, "aia", "Set type of AIA interrupt " "conttoller. Valid values are " - "none, and aplic."); + "none, aplic, and aplic-imsic."); + + object_class_property_add_str(oc, "aia-guests", + virt_get_aia_guests, + virt_set_aia_guests); + sprintf(str, "Set number of guest MMIO pages for AIA IMSIC. Valid value " + "should be between 0 and %d.", VIRT_IRQCHIP_MAX_GUESTS); + object_class_property_set_description(oc, "aia-guests", str); } static const TypeInfo virt_machine_typeinfo = { diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index 47706b4..d248d0d 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -24,8 +24,10 @@ #include "hw/block/flash.h" #include "qom/object.h" -#define VIRT_CPUS_MAX 32 -#define VIRT_SOCKETS_MAX 8 +#define VIRT_CPUS_MAX_BITS 3 +#define VIRT_CPUS_MAX (1 << VIRT_CPUS_MAX_BITS) +#define VIRT_SOCKETS_MAX_BITS 2 +#define VIRT_SOCKETS_MAX (1 << VIRT_SOCKETS_MAX_BITS) #define TYPE_RISCV_VIRT_MACHINE MACHINE_TYPE_NAME("virt") typedef struct RISCVVirtState RISCVVirtState; @@ -35,6 +37,7 @@ DECLARE_INSTANCE_CHECKER(RISCVVirtState, RISCV_VIRT_MACHINE, typedef enum RISCVVirtAIAType { VIRT_AIA_TYPE_NONE = 0, VIRT_AIA_TYPE_APLIC, + VIRT_AIA_TYPE_APLIC_IMSIC, } RISCVVirtAIAType; struct RISCVVirtState { @@ -50,6 +53,7 @@ struct RISCVVirtState { int fdt_size; bool have_aclint; RISCVVirtAIAType aia_type; + int aia_guests; }; enum { @@ -65,6 +69,8 @@ enum { VIRT_UART0, VIRT_VIRTIO, VIRT_FW_CFG, + VIRT_IMSIC_M, + VIRT_IMSIC_S, VIRT_FLASH, VIRT_DRAM, VIRT_PCIE_MMIO, @@ -81,8 +87,12 @@ enum { VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */ }; -#define VIRT_IRQCHIP_NUM_SOURCES 127 +#define VIRT_IRQCHIP_IPI_MSI 1 +#define VIRT_IRQCHIP_NUM_MSIS 255 +#define VIRT_IRQCHIP_NUM_SOURCES VIRTIO_NDEV #define VIRT_IRQCHIP_NUM_PRIO_BITS 3 +#define VIRT_IRQCHIP_MAX_GUESTS_BITS 3 +#define VIRT_IRQCHIP_MAX_GUESTS ((1U << VIRT_IRQCHIP_MAX_GUESTS_BITS) - 1U) #define VIRT_PLIC_PRIORITY_BASE 0x04 #define VIRT_PLIC_PENDING_BASE 0x1000 @@ -97,6 +107,7 @@ enum { #define FDT_PCI_INT_CELLS 1 #define FDT_PLIC_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) |