From: Alistair Francis <alistair23@gmail.com> To: Anup Patel <anup@brainfault.org> Cc: Anup Patel <apatel@ventanamicro.com>, Peter Maydell <peter.maydell@linaro.org>, "open list:RISC-V" <qemu-riscv@nongnu.org>, Sagar Karandikar <sagark@eecs.berkeley.edu>, "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>, Alistair Francis <Alistair.Francis@wdc.com>, Atish Patra <atishp@atishpatra.org>, Palmer Dabbelt <palmer@dabbelt.com>, Bin Meng <bmeng.cn@gmail.com> Subject: Re: [PATCH] hw/riscv: spike: Allow using binary firmware as bios Date: Tue, 18 Jan 2022 15:54:25 +1000 [thread overview] Message-ID: <CAKmqyKMdM1rT3qFm+5xLyAPkC3BH+w9arQKeFg1DACWBCivj=A@mail.gmail.com> (raw) In-Reply-To: <CAAhSdy08KwssGS-YcrGQcSSbchGsOerPvQo2kbSuR5WYNkKP+w@mail.gmail.com> On Tue, Jan 18, 2022 at 3:27 PM Anup Patel <anup@brainfault.org> wrote: > > On Tue, Jan 18, 2022 at 10:50 AM Alistair Francis <alistair23@gmail.com> wrote: > > > > On Sat, Jan 15, 2022 at 2:18 AM Anup Patel <apatel@ventanamicro.com> wrote: > > > > > > Currently, we have to use OpenSBI firmware ELF as bios for the spike > > > machine because the HTIF console requires ELF for parsing "fromhost" > > > and "tohost" symbols. > > > > > > The latest OpenSBI can now optionally pick-up HTIF register address > > > from HTIF DT node so using this feature spike machine can now use > > > OpenSBI firmware BIN as bios. > > > > Cool! > > > > I think that means we can remove the elfs from QEMU. > > Yes, we can definitely remove the ELFs from QEMU. Ha, I mostly meant can you do that? :P Alistair > > > > > > > > > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > > > --- > > > hw/char/riscv_htif.c | 33 +++++++++++++++++++---------- > > > hw/riscv/spike.c | 41 ++++++++++++++++++++++-------------- > > > include/hw/char/riscv_htif.h | 5 ++++- > > > include/hw/riscv/spike.h | 1 + > > > 4 files changed, 52 insertions(+), 28 deletions(-) > > > > > > diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c > > > index ddae738d56..b59d321fb7 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 (address_symbol_set != 3) { > > > > Why not use htif_uses_elf_symbols() ? > > Ahh, yes. > > I should have used htif_uses_elf_symbols() here. I will update > it in the next revision. > > Regards, > Anup > > > > > Alistair > > > > > + 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) > > > diff --git a/include/hw/char/riscv_htif.h b/include/hw/char/riscv_htif.h > > > index fb9452cf51..f888ac1b30 100644 > > > --- a/include/hw/char/riscv_htif.h > > > +++ b/include/hw/char/riscv_htif.h > > > @@ -52,8 +52,11 @@ extern const MemoryRegionOps htif_io_ops; > > > void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value, > > > uint64_t st_size); > > > > > > +/* Check if HTIF uses ELF symbols */ > > > +bool htif_uses_elf_symbols(void); > > > + > > > /* legacy pre qom */ > > > HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem, > > > - CPURISCVState *env, Chardev *chr); > > > + CPURISCVState *env, Chardev *chr, uint64_t nonelf_base); > > > > > > #endif > > > diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h > > > index cdd1a13011..73d69234de 100644 > > > --- a/include/hw/riscv/spike.h > > > +++ b/include/hw/riscv/spike.h > > > @@ -43,6 +43,7 @@ struct SpikeState { > > > > > > enum { > > > SPIKE_MROM, > > > + SPIKE_HTIF, > > > SPIKE_CLINT, > > > SPIKE_DRAM > > > }; > > > -- > > > 2.25.1 > > > > > >
WARNING: multiple messages have this Message-ID (diff)
From: Alistair Francis <alistair23@gmail.com> To: Anup Patel <anup@brainfault.org> Cc: Anup Patel <apatel@ventanamicro.com>, Peter Maydell <peter.maydell@linaro.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <Alistair.Francis@wdc.com>, Sagar Karandikar <sagark@eecs.berkeley.edu>, "open list:RISC-V" <qemu-riscv@nongnu.org>, "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>, Atish Patra <atishp@atishpatra.org>, Bin Meng <bmeng.cn@gmail.com> Subject: Re: [PATCH] hw/riscv: spike: Allow using binary firmware as bios Date: Tue, 18 Jan 2022 15:54:25 +1000 [thread overview] Message-ID: <CAKmqyKMdM1rT3qFm+5xLyAPkC3BH+w9arQKeFg1DACWBCivj=A@mail.gmail.com> (raw) In-Reply-To: <CAAhSdy08KwssGS-YcrGQcSSbchGsOerPvQo2kbSuR5WYNkKP+w@mail.gmail.com> On Tue, Jan 18, 2022 at 3:27 PM Anup Patel <anup@brainfault.org> wrote: > > On Tue, Jan 18, 2022 at 10:50 AM Alistair Francis <alistair23@gmail.com> wrote: > > > > On Sat, Jan 15, 2022 at 2:18 AM Anup Patel <apatel@ventanamicro.com> wrote: > > > > > > Currently, we have to use OpenSBI firmware ELF as bios for the spike > > > machine because the HTIF console requires ELF for parsing "fromhost" > > > and "tohost" symbols. > > > > > > The latest OpenSBI can now optionally pick-up HTIF register address > > > from HTIF DT node so using this feature spike machine can now use > > > OpenSBI firmware BIN as bios. > > > > Cool! > > > > I think that means we can remove the elfs from QEMU. > > Yes, we can definitely remove the ELFs from QEMU. Ha, I mostly meant can you do that? :P Alistair > > > > > > > > > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > > > --- > > > hw/char/riscv_htif.c | 33 +++++++++++++++++++---------- > > > hw/riscv/spike.c | 41 ++++++++++++++++++++++-------------- > > > include/hw/char/riscv_htif.h | 5 ++++- > > > include/hw/riscv/spike.h | 1 + > > > 4 files changed, 52 insertions(+), 28 deletions(-) > > > > > > diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c > > > index ddae738d56..b59d321fb7 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 (address_symbol_set != 3) { > > > > Why not use htif_uses_elf_symbols() ? > > Ahh, yes. > > I should have used htif_uses_elf_symbols() here. I will update > it in the next revision. > > Regards, > Anup > > > > > Alistair > > > > > + 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) > > > diff --git a/include/hw/char/riscv_htif.h b/include/hw/char/riscv_htif.h > > > index fb9452cf51..f888ac1b30 100644 > > > --- a/include/hw/char/riscv_htif.h > > > +++ b/include/hw/char/riscv_htif.h > > > @@ -52,8 +52,11 @@ extern const MemoryRegionOps htif_io_ops; > > > void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value, > > > uint64_t st_size); > > > > > > +/* Check if HTIF uses ELF symbols */ > > > +bool htif_uses_elf_symbols(void); > > > + > > > /* legacy pre qom */ > > > HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem, > > > - CPURISCVState *env, Chardev *chr); > > > + CPURISCVState *env, Chardev *chr, uint64_t nonelf_base); > > > > > > #endif > > > diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h > > > index cdd1a13011..73d69234de 100644 > > > --- a/include/hw/riscv/spike.h > > > +++ b/include/hw/riscv/spike.h > > > @@ -43,6 +43,7 @@ struct SpikeState { > > > > > > enum { > > > SPIKE_MROM, > > > + SPIKE_HTIF, > > > SPIKE_CLINT, > > > SPIKE_DRAM > > > }; > > > -- > > > 2.25.1 > > > > > >
next prev parent reply other threads:[~2022-01-18 5:57 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-14 16:04 [PATCH] hw/riscv: spike: Allow using binary firmware as bios Anup Patel 2022-01-14 16:04 ` Anup Patel 2022-01-18 5:19 ` Alistair Francis 2022-01-18 5:19 ` Alistair Francis 2022-01-18 5:27 ` Anup Patel 2022-01-18 5:27 ` Anup Patel 2022-01-18 5:54 ` Alistair Francis [this message] 2022-01-18 5:54 ` Alistair Francis 2022-01-18 7:39 ` Anup Patel 2022-01-18 7:39 ` Anup Patel
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