diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/char/riscv_htif.c | 33 | ||||
| -rw-r--r-- | hw/riscv/spike.c | 41 |
2 files changed, 47 insertions, 27 deletions
diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c index ddae738d56..729edbf968 100644 --- a/hw/char/riscv_htif.c +++ b/hw/char/riscv_htif.c @@ -228,13 +228,25 @@ static const MemoryRegionOps htif_mm_ops = { .write = htif_mm_write, }; +bool htif_uses_elf_symbols(void) +{ + return (address_symbol_set == 3) ? true : false; +} + HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem, - CPURISCVState *env, Chardev *chr) + CPURISCVState *env, Chardev *chr, uint64_t nonelf_base) { - uint64_t base = MIN(tohost_addr, fromhost_addr); - uint64_t size = MAX(tohost_addr + 8, fromhost_addr + 8) - base; - uint64_t tohost_offset = tohost_addr - base; - uint64_t fromhost_offset = fromhost_addr - base; + uint64_t base, size, tohost_offset, fromhost_offset; + + if (!htif_uses_elf_symbols()) { + fromhost_addr = nonelf_base; + tohost_addr = nonelf_base + 8; + } + + base = MIN(tohost_addr, fromhost_addr); + size = MAX(tohost_addr + 8, fromhost_addr + 8) - base; + tohost_offset = tohost_addr - base; + fromhost_offset = fromhost_addr - base; HTIFState *s = g_malloc0(sizeof(HTIFState)); s->address_space = address_space; @@ -249,12 +261,11 @@ HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem, qemu_chr_fe_init(&s->chr, chr, &error_abort); qemu_chr_fe_set_handlers(&s->chr, htif_can_recv, htif_recv, htif_event, htif_be_change, s, NULL, true); - if (address_symbol_set == 3) { - memory_region_init_io(&s->mmio, NULL, &htif_mm_ops, s, - TYPE_HTIF_UART, size); - memory_region_add_subregion_overlap(address_space, base, - &s->mmio, 1); - } + + memory_region_init_io(&s->mmio, NULL, &htif_mm_ops, s, + TYPE_HTIF_UART, size); + memory_region_add_subregion_overlap(address_space, base, + &s->mmio, 1); return s; } diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 288d69cd9f..597df4c288 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -42,6 +42,7 @@ static const MemMapEntry spike_memmap[] = { [SPIKE_MROM] = { 0x1000, 0xf000 }, + [SPIKE_HTIF] = { 0x1000000, 0x1000 }, [SPIKE_CLINT] = { 0x2000000, 0x10000 }, [SPIKE_DRAM] = { 0x80000000, 0x0 }, }; @@ -75,6 +76,10 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap, qemu_fdt_add_subnode(fdt, "/htif"); qemu_fdt_setprop_string(fdt, "/htif", "compatible", "ucb,htif0"); + if (!htif_uses_elf_symbols()) { + qemu_fdt_setprop_cells(fdt, "/htif", "reg", + 0x0, memmap[SPIKE_HTIF].base, 0x0, memmap[SPIKE_HTIF].size); + } qemu_fdt_add_subnode(fdt, "/soc"); qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); @@ -172,6 +177,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap, if (cmdline) { qemu_fdt_add_subnode(fdt, "/chosen"); qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); + qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", "/htif"); } } @@ -241,10 +247,6 @@ static void spike_board_init(MachineState *machine) memory_region_add_subregion(system_memory, memmap[SPIKE_DRAM].base, machine->ram); - /* create device tree */ - create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline, - riscv_is_32bit(&s->soc[0])); - /* boot rom */ memory_region_init_rom(mask_rom, NULL, "riscv.spike.mrom", memmap[SPIKE_MROM].size, &error_fatal); @@ -266,6 +268,7 @@ static void spike_board_init(MachineState *machine) htif_symbol_callback); } + /* Load kernel */ if (machine->kernel_filename) { kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc[0], firmware_end_addr); @@ -273,17 +276,6 @@ static void spike_board_init(MachineState *machine) kernel_entry = riscv_load_kernel(machine->kernel_filename, kernel_start_addr, htif_symbol_callback); - - if (machine->initrd_filename) { - hwaddr start; - hwaddr end = riscv_load_initrd(machine->initrd_filename, - machine->ram_size, kernel_entry, - &start); - qemu_fdt_setprop_cell(s->fdt, "/chosen", - "linux,initrd-start", start); - qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", - end); - } } else { /* * If dynamic firmware is used, it doesn't know where is the next mode @@ -292,6 +284,22 @@ static void spike_board_init(MachineState *machine) kernel_entry = 0; } + /* Create device tree */ + create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline, + riscv_is_32bit(&s->soc[0])); + + /* Load initrd */ + if (machine->kernel_filename && machine->initrd_filename) { + hwaddr start; + hwaddr end = riscv_load_initrd(machine->initrd_filename, + machine->ram_size, kernel_entry, + &start); + qemu_fdt_setprop_cell(s->fdt, "/chosen", + "linux,initrd-start", start); + qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", + end); + } + /* Compute the fdt load address in dram */ fdt_load_addr = riscv_load_fdt(memmap[SPIKE_DRAM].base, machine->ram_size, s->fdt); @@ -303,7 +311,8 @@ static void spike_board_init(MachineState *machine) /* initialize HTIF using symbols found in load_kernel */ htif_mm_init(system_memory, mask_rom, - &s->soc[0].harts[0].env, serial_hd(0)); + &s->soc[0].harts[0].env, serial_hd(0), + memmap[SPIKE_HTIF].base); } static void spike_machine_instance_init(Object *obj) |