diff options
| -rw-r--r-- | hw/riscv/sifive_u.c | 7 | ||||
| -rw-r--r-- | hw/riscv/spike.c | 6 | ||||
| -rw-r--r-- | hw/riscv/virt.c | 4 | ||||
| -rw-r--r-- | target/riscv/cpu.c | 54 | ||||
| -rw-r--r-- | target/riscv/cpu.h | 1 |
5 files changed, 60 insertions, 12 deletions
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 5207ec1fa5..af5f923f54 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -171,7 +171,6 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap, int cpu_phandle = phandle++; nodename = g_strdup_printf("/cpus/cpu@%d", cpu); char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); - char *isa; qemu_fdt_add_subnode(fdt, nodename); /* cpu 0 is the management hart that does not have mmu */ if (cpu != 0) { @@ -180,11 +179,10 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap, } else { qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48"); } - isa = riscv_isa_string(&s->soc.u_cpus.harts[cpu - 1]); + riscv_isa_write_fdt(&s->soc.u_cpus.harts[cpu - 1], fdt, nodename); } else { - isa = riscv_isa_string(&s->soc.e_cpus.harts[0]); + riscv_isa_write_fdt(&s->soc.e_cpus.harts[0], fdt, nodename); } - 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); @@ -194,7 +192,6 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap, 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); } diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 81f7e53aed..64074395bc 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -59,7 +59,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap, MachineState *ms = MACHINE(s); uint32_t *clint_cells; uint32_t cpu_phandle, intc_phandle, phandle = 1; - char *name, *mem_name, *clint_name, *clust_name; + char *mem_name, *clint_name, *clust_name; char *core_name, *cpu_name, *intc_name; static const char * const clint_compat[2] = { "sifive,clint0", "riscv,clint0" @@ -113,9 +113,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap, } else { qemu_fdt_setprop_string(fdt, cpu_name, "mmu-type", "riscv,sv48"); } - name = riscv_isa_string(&s->soc[socket].harts[cpu]); - qemu_fdt_setprop_string(fdt, cpu_name, "riscv,isa", name); - g_free(name); + riscv_isa_write_fdt(&s->soc[socket].harts[cpu], fdt, cpu_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", diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 1c257e89d2..b4e80b0b0d 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -220,7 +220,6 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket, for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu]; - g_autofree char *name = NULL; g_autofree char *cpu_name = NULL; g_autofree char *core_name = NULL; g_autofree char *intc_name = NULL; @@ -239,8 +238,7 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket, qemu_fdt_setprop_string(ms->fdt, cpu_name, "mmu-type", sv_name); } - name = riscv_isa_string(cpu_ptr); - qemu_fdt_setprop_string(ms->fdt, cpu_name, "riscv,isa", 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", diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 7fc45660d7..6b5878c603 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -32,6 +32,7 @@ #include "hw/core/qdev-prop-internal.h" #include "migration/vmstate.h" #include "fpu/softfloat-helpers.h" +#include "sysemu/device_tree.h" #include "sysemu/kvm.h" #include "sysemu/tcg.h" #include "kvm/kvm_riscv.h" @@ -2381,6 +2382,59 @@ char *riscv_isa_string(RISCVCPU *cpu) return isa_str; } +#ifndef CONFIG_USER_ONLY +static char **riscv_isa_extensions_list(RISCVCPU *cpu, int *count) +{ + int maxlen = ARRAY_SIZE(riscv_single_letter_exts) + ARRAY_SIZE(isa_edata_arr); + char **extensions = g_new(char *, maxlen); + + for (int i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) { + if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) { + extensions[*count] = g_new(char, 2); + snprintf(extensions[*count], 2, "%c", + qemu_tolower(riscv_single_letter_exts[i])); + (*count)++; + } + } + + for (const RISCVIsaExtData *edata = isa_edata_arr; edata->name; edata++) { + if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) { + extensions[*count] = g_strdup(edata->name); + (*count)++; + } + } + + return extensions; +} + +void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char *nodename) +{ + RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); + const size_t maxlen = sizeof("rv128i"); + g_autofree char *isa_base = g_new(char, maxlen); + g_autofree char *riscv_isa; + char **isa_extensions; + int count = 0; + int xlen = riscv_cpu_max_xlen(mcc); + + riscv_isa = riscv_isa_string(cpu); + qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", riscv_isa); + + snprintf(isa_base, maxlen, "rv%di", xlen); + qemu_fdt_setprop_string(fdt, nodename, "riscv,isa-base", isa_base); + + isa_extensions = riscv_isa_extensions_list(cpu, &count); + qemu_fdt_setprop_string_array(fdt, nodename, "riscv,isa-extensions", + isa_extensions, count); + + for (int i = 0; i < count; i++) { + g_free(isa_extensions[i]); + } + + g_free(isa_extensions); +} +#endif + #define DEFINE_CPU(type_name, misa_mxl_max, initfn) \ { \ .name = (type_name), \ diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 9bc14056fa..f52dce78ba 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -515,6 +515,7 @@ int riscv_cpu_max_xlen(RISCVCPUClass *mcc); bool riscv_cpu_option_set(const char *optname); #ifndef CONFIG_USER_ONLY +void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char *nodename); void riscv_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, unsigned size, MMUAccessType access_type, |