diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/riscv/sifive_u.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index e2120ac7a5..a416d5d08b 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -344,6 +344,8 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) MemoryRegion *system_memory = get_system_memory(); MemoryRegion *mask_rom = g_new(MemoryRegion, 1); qemu_irq plic_gpios[SIFIVE_U_PLIC_NUM_SOURCES]; + char *plic_hart_config; + size_t plic_hart_config_len; int i; Error *err = NULL; NICInfo *nd = &nd_table[0]; @@ -357,9 +359,21 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) memory_region_add_subregion(system_memory, memmap[SIFIVE_U_MROM].base, mask_rom); + /* create PLIC hart topology configuration string */ + plic_hart_config_len = (strlen(SIFIVE_U_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, SIFIVE_U_PLIC_HART_CONFIG, + plic_hart_config_len); + plic_hart_config_len -= (strlen(SIFIVE_U_PLIC_HART_CONFIG) + 1); + } + /* MMIO */ s->plic = sifive_plic_create(memmap[SIFIVE_U_PLIC].base, - (char *)SIFIVE_U_PLIC_HART_CONFIG, + plic_hart_config, SIFIVE_U_PLIC_NUM_SOURCES, SIFIVE_U_PLIC_NUM_PRIORITIES, SIFIVE_U_PLIC_PRIORITY_BASE, |