From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:40610) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eznmT-0007GP-2N for qemu-devel@nongnu.org; Sat, 24 Mar 2018 14:21:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ezngQ-0003hk-HO for qemu-devel@nongnu.org; Sat, 24 Mar 2018 14:15:32 -0400 Received: from mail-pl0-x244.google.com ([2607:f8b0:400e:c01::244]:40355) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ezngQ-0003hK-8o for qemu-devel@nongnu.org; Sat, 24 Mar 2018 14:14:26 -0400 Received: by mail-pl0-x244.google.com with SMTP id x4-v6so9373174pln.7 for ; Sat, 24 Mar 2018 11:14:26 -0700 (PDT) From: Michael Clark Date: Sat, 24 Mar 2018 11:13:27 -0700 Message-Id: <1521915220-65389-2-git-send-email-mjc@sifive.com> In-Reply-To: <1521915220-65389-1-git-send-email-mjc@sifive.com> References: <1521915220-65389-1-git-send-email-mjc@sifive.com> Subject: [Qemu-devel] [PATCH v6 06/26] RISC-V: Mark ROM read-only after copying in code List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: patches@groups.riscv.org, Michael Clark , Sagar Karandikar , Bastian Koppelmann , Palmer Dabbelt The sifive_u machine already marks its ROM readonly. This fixes the remaining boards. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt --- hw/riscv/sifive_u.c | 9 +++++---- hw/riscv/spike.c | 18 ++++++++++-------- hw/riscv/virt.c | 7 ++++--- include/hw/riscv/spike.h | 8 -------- 4 files changed, 19 insertions(+), 23 deletions(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 6116c38..25df16c 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -223,7 +223,7 @@ static void riscv_sifive_u_init(MachineState *machine) SiFiveUState *s = g_new0(SiFiveUState, 1); MemoryRegion *sys_memory = get_system_memory(); MemoryRegion *main_mem = g_new(MemoryRegion, 1); - MemoryRegion *boot_rom = g_new(MemoryRegion, 1); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -246,10 +246,10 @@ static void riscv_sifive_u_init(MachineState *machine) create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv.sifive.u.mrom", + memory_region_init_ram(mask_rom, NULL, "riscv.sifive.u.mrom", memmap[SIFIVE_U_MROM].base, &error_fatal); - memory_region_set_readonly(boot_rom, true); - memory_region_add_subregion(sys_memory, 0x0, boot_rom); + memory_region_set_readonly(mask_rom, true); + memory_region_add_subregion(sys_memory, 0x0, mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -279,6 +279,7 @@ static void riscv_sifive_u_init(MachineState *machine) qemu_fdt_dumpdtb(s->fdt, s->fdt_size); cpu_physical_memory_write(memmap[SIFIVE_U_MROM].base + sizeof(reset_vec), s->fdt, s->fdt_size); + memory_region_set_readonly(mask_rom, true); /* MMIO */ s->plic = sifive_plic_create(memmap[SIFIVE_U_PLIC].base, diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 7710333..74edf33 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -173,7 +173,7 @@ static void spike_v1_10_0_board_init(MachineState *machine) SpikeState *s = g_new0(SpikeState, 1); MemoryRegion *system_memory = get_system_memory(); MemoryRegion *main_mem = g_new(MemoryRegion, 1); - MemoryRegion *boot_rom = g_new(MemoryRegion, 1); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -196,9 +196,9 @@ static void spike_v1_10_0_board_init(MachineState *machine) create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv.spike.bootrom", + memory_region_init_ram(mask_rom, NULL, "riscv.spike.mrom", s->fdt_size + 0x2000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_add_subregion(system_memory, 0x0, mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -228,9 +228,10 @@ static void spike_v1_10_0_board_init(MachineState *machine) qemu_fdt_dumpdtb(s->fdt, s->fdt_size); cpu_physical_memory_write(memmap[SPIKE_MROM].base + sizeof(reset_vec), s->fdt, s->fdt_size); + memory_region_set_readonly(mask_rom, true); /* initialize HTIF using symbols found in load_kernel */ - htif_mm_init(system_memory, boot_rom, &s->soc.harts[0].env, serial_hds[0]); + htif_mm_init(system_memory, mask_rom, &s->soc.harts[0].env, serial_hds[0]); /* Core Local Interruptor (timer and IPI) */ sifive_clint_create(memmap[SPIKE_CLINT].base, memmap[SPIKE_CLINT].size, @@ -244,7 +245,7 @@ static void spike_v1_09_1_board_init(MachineState *machine) SpikeState *s = g_new0(SpikeState, 1); MemoryRegion *system_memory = get_system_memory(); MemoryRegion *main_mem = g_new(MemoryRegion, 1); - MemoryRegion *boot_rom = g_new(MemoryRegion, 1); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -264,9 +265,9 @@ static void spike_v1_09_1_board_init(MachineState *machine) main_mem); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv.spike.bootrom", + memory_region_init_ram(mask_rom, NULL, "riscv.spike.mrom", 0x40000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_add_subregion(system_memory, 0x0, mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -325,9 +326,10 @@ static void spike_v1_09_1_board_init(MachineState *machine) /* copy in the config string */ cpu_physical_memory_write(memmap[SPIKE_MROM].base + sizeof(reset_vec), config_string, config_string_len); + memory_region_set_readonly(mask_rom, true); /* initialize HTIF using symbols found in load_kernel */ - htif_mm_init(system_memory, boot_rom, &s->soc.harts[0].env, serial_hds[0]); + htif_mm_init(system_memory, mask_rom, &s->soc.harts[0].env, serial_hds[0]); /* Core Local Interruptor (timer and IPI) */ sifive_clint_create(memmap[SPIKE_CLINT].base, memmap[SPIKE_CLINT].size, diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index f8c19b4..f1e3641 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -270,7 +270,7 @@ static void riscv_virt_board_init(MachineState *machine) RISCVVirtState *s = g_new0(RISCVVirtState, 1); MemoryRegion *system_memory = get_system_memory(); MemoryRegion *main_mem = g_new(MemoryRegion, 1); - MemoryRegion *boot_rom = g_new(MemoryRegion, 1); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); char *plic_hart_config; size_t plic_hart_config_len; int i; @@ -296,9 +296,9 @@ static void riscv_virt_board_init(MachineState *machine) create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv_virt_board.bootrom", + memory_region_init_ram(mask_rom, NULL, "riscv_virt_board.mrom", s->fdt_size + 0x2000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_add_subregion(system_memory, 0x0, mask_rom); if (machine->kernel_filename) { uint64_t kernel_entry = load_kernel(machine->kernel_filename); @@ -339,6 +339,7 @@ static void riscv_virt_board_init(MachineState *machine) qemu_fdt_dumpdtb(s->fdt, s->fdt_size); cpu_physical_memory_write(memmap[VIRT_MROM].base + sizeof(reset_vec), s->fdt, s->fdt_size); + memory_region_set_readonly(mask_rom, true); /* create PLIC hart topology configuration string */ plic_hart_config_len = (strlen(VIRT_PLIC_HART_CONFIG) + 1) * smp_cpus; diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h index d85a64e..179b6cf 100644 --- a/include/hw/riscv/spike.h +++ b/include/hw/riscv/spike.h @@ -22,20 +22,12 @@ #define TYPE_RISCV_SPIKE_V1_09_1_BOARD "riscv.spike_v1_9_1" #define TYPE_RISCV_SPIKE_V1_10_0_BOARD "riscv.spike_v1_10" -#define SPIKE(obj) \ - OBJECT_CHECK(SpikeState, (obj), TYPE_RISCV_SPIKE_BOARD) - typedef struct { - /*< private >*/ - SysBusDevice parent_obj; - - /*< public >*/ RISCVHartArrayState soc; void *fdt; int fdt_size; } SpikeState; - enum { SPIKE_MROM, SPIKE_CLINT, -- 2.7.0