From 2a8756ed7d64f8fed6ad50fb062f7118e47c856c Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sat, 3 Mar 2018 14:30:07 +1300 Subject: RISC-V: Replace hardcoded constants with enum values MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The RISC-V device-tree code has a number of hard-coded constants and this change moves them into header enums. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/virt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 4f69eb2cff..2480dad11f 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -145,7 +145,8 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap, g_free(nodename); qemu_fdt_add_subnode(fdt, "/cpus"); - qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", 10000000); + qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", + SIFIVE_CLINT_TIMEBASE_FREQ); qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); @@ -155,7 +156,8 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap, char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); char *isa = riscv_isa_string(&s->soc.harts[cpu]); qemu_fdt_add_subnode(fdt, nodename); - qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", 1000000000); + qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", + VIRT_CLOCK_FREQ); qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48"); qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", isa); qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv"); -- cgit 1.4.1 From 77ff5bba315d4453ae97ff90ba7698fb1ccc077c Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sat, 3 Mar 2018 16:23:03 +1300 Subject: RISC-V: Make virt board description match spike MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This makes 'qemu-system-riscv64 -machine help' output more tidy and consistent. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/virt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 2480dad11f..df06fc7207 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -407,7 +407,7 @@ static const TypeInfo riscv_virt_board_device = { static void riscv_virt_board_machine_init(MachineClass *mc) { - mc->desc = "RISC-V VirtIO Board (Privileged spec v1.10)"; + mc->desc = "RISC-V VirtIO Board (Privileged ISA v1.10)"; mc->init = riscv_virt_board_init; mc->max_cpus = 8; /* hardcoded limit in BBL */ } -- cgit 1.4.1 From 6b01e3277e0e189a8f064b94c4f761e4efadd758 Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sun, 4 Mar 2018 11:15:09 +1300 Subject: RISC-V: Use ROM base address and size from memmap MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Another case of replacing hard coded constants, this time referring to the definition in the virt machine's memmap. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/virt.c | 4 ++-- include/hw/riscv/virt.h | 2 -- 2 files changed, 2 insertions(+), 4 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index df06fc7207..3cc9c8090b 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -341,11 +341,11 @@ static void riscv_virt_board_init(MachineState *machine) }; /* copy in the reset vector */ - copy_le32_to_phys(ROM_BASE, reset_vec, sizeof(reset_vec)); + copy_le32_to_phys(memmap[VIRT_MROM].base, reset_vec, sizeof(reset_vec)); /* copy in the device tree */ qemu_fdt_dumpdtb(s->fdt, s->fdt_size); - cpu_physical_memory_write(ROM_BASE + sizeof(reset_vec), + cpu_physical_memory_write(memmap[VIRT_MROM].base + sizeof(reset_vec), s->fdt, s->fdt_size); /* create PLIC hart topology configuration string */ diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index 2fbe808da5..655e85ddbd 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -23,8 +23,6 @@ #define VIRT(obj) \ OBJECT_CHECK(RISCVVirtState, (obj), TYPE_RISCV_VIRT_BOARD) -enum { ROM_BASE = 0x1000 }; - typedef struct { /*< private >*/ SysBusDevice parent_obj; -- cgit 1.4.1 From b7938980fbd3209fd94b17c98c54ec044b762417 Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sun, 4 Mar 2018 11:32:17 +1300 Subject: RISC-V: Remove identity_translate from load_elf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When load_elf is called with NULL as an argument to the address translate callback, it does an identity translation. This commit removes the redundant identity_translate callback. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/sifive_e.c | 7 +------ hw/riscv/sifive_u.c | 7 +------ hw/riscv/spike.c | 7 +------ hw/riscv/virt.c | 7 +------ 4 files changed, 4 insertions(+), 24 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c index 487244890e..3e523a0734 100644 --- a/hw/riscv/sifive_e.c +++ b/hw/riscv/sifive_e.c @@ -82,16 +82,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) } } -static uint64_t identity_translate(void *opaque, uint64_t addr) -{ - return addr; -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; - if (load_elf(kernel_filename, identity_translate, NULL, + if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 1bd2bde9b8..adc6c22662 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -68,16 +68,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) } } -static uint64_t identity_translate(void *opaque, uint64_t addr) -{ - return addr; -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; - if (load_elf(kernel_filename, identity_translate, NULL, + if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index ae82f4eb63..cf7f9bcc39 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -59,16 +59,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) } } -static uint64_t identity_translate(void *opaque, uint64_t addr) -{ - return addr; -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; - if (load_elf_ram_sym(kernel_filename, identity_translate, NULL, + if (load_elf_ram_sym(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0, NULL, true, htif_symbol_callback) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 3cc9c8090b..c2aa795981 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -62,16 +62,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) } } -static uint64_t identity_translate(void *opaque, uint64_t addr) -{ - return addr; -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; - if (load_elf(kernel_filename, identity_translate, NULL, + if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); -- cgit 1.4.1 From 42b3a4b7ccbbf419df926939b273fe3b8a6dca1f Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sun, 4 Mar 2018 13:27:37 +1300 Subject: RISC-V: Remove unused class definitions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Removes a whole lot of unnecessary boilerplate code. Machines don't need to be objects. The expansion of the SOC object model for the RISC-V machines will happen in the future as SiFive plans to add their FE310 and FU540 SOCs to QEMU. However, it seems that this present boilerplate is complete unnecessary. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/riscv_hart.c | 6 ------ hw/riscv/sifive_e.c | 25 ------------------------- hw/riscv/sifive_u.c | 25 ------------------------- hw/riscv/spike.c | 20 -------------------- hw/riscv/virt.c | 25 ------------------------- include/hw/riscv/sifive_e.h | 5 ----- include/hw/riscv/sifive_u.h | 5 ----- include/hw/riscv/spike.h | 7 ------- include/hw/riscv/virt.h | 5 ----- 9 files changed, 123 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c index 14e3c186fe..75ba7ed579 100644 --- a/hw/riscv/riscv_hart.c +++ b/hw/riscv/riscv_hart.c @@ -68,16 +68,10 @@ static void riscv_harts_class_init(ObjectClass *klass, void *data) dc->realize = riscv_harts_realize; } -static void riscv_harts_init(Object *obj) -{ - /* RISCVHartArrayState *s = SIFIVE_COREPLEX(obj); */ -} - static const TypeInfo riscv_harts_info = { .name = TYPE_RISCV_HART_ARRAY, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(RISCVHartArrayState), - .instance_init = riscv_harts_init, .class_init = riscv_harts_class_init, }; diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c index 3e523a0734..22dc526713 100644 --- a/hw/riscv/sifive_e.c +++ b/hw/riscv/sifive_e.c @@ -194,24 +194,6 @@ static void riscv_sifive_e_init(MachineState *machine) } } -static int riscv_sifive_e_sysbus_device_init(SysBusDevice *sysbusdev) -{ - return 0; -} - -static void riscv_sifive_e_class_init(ObjectClass *klass, void *data) -{ - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - k->init = riscv_sifive_e_sysbus_device_init; -} - -static const TypeInfo riscv_sifive_e_device = { - .name = TYPE_SIFIVE_E, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(SiFiveEState), - .class_init = riscv_sifive_e_class_init, -}; - static void riscv_sifive_e_machine_init(MachineClass *mc) { mc->desc = "RISC-V Board compatible with SiFive E SDK"; @@ -220,10 +202,3 @@ static void riscv_sifive_e_machine_init(MachineClass *mc) } DEFINE_MACHINE("sifive_e", riscv_sifive_e_machine_init) - -static void riscv_sifive_e_register_types(void) -{ - type_register_static(&riscv_sifive_e_device); -} - -type_init(riscv_sifive_e_register_types); diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index adc6c22662..5bb495ab9a 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -301,31 +301,6 @@ static void riscv_sifive_u_init(MachineState *machine) SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); } -static int riscv_sifive_u_sysbus_device_init(SysBusDevice *sysbusdev) -{ - return 0; -} - -static void riscv_sifive_u_class_init(ObjectClass *klass, void *data) -{ - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - k->init = riscv_sifive_u_sysbus_device_init; -} - -static const TypeInfo riscv_sifive_u_device = { - .name = TYPE_SIFIVE_U, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(SiFiveUState), - .class_init = riscv_sifive_u_class_init, -}; - -static void riscv_sifive_u_register_types(void) -{ - type_register_static(&riscv_sifive_u_device); -} - -type_init(riscv_sifive_u_register_types); - static void riscv_sifive_u_machine_init(MachineClass *mc) { mc->desc = "RISC-V Board compatible with SiFive U SDK"; diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index cf7f9bcc39..44eab94e17 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -334,18 +334,6 @@ static void spike_v1_09_1_board_init(MachineState *machine) smp_cpus, SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); } -static const TypeInfo spike_v_1_09_1_device = { - .name = TYPE_RISCV_SPIKE_V1_09_1_BOARD, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(SpikeState), -}; - -static const TypeInfo spike_v_1_10_0_device = { - .name = TYPE_RISCV_SPIKE_V1_10_0_BOARD, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(SpikeState), -}; - static void spike_v1_09_1_machine_init(MachineClass *mc) { mc->desc = "RISC-V Spike Board (Privileged ISA v1.9.1)"; @@ -363,11 +351,3 @@ static void spike_v1_10_0_machine_init(MachineClass *mc) DEFINE_MACHINE("spike_v1.9.1", spike_v1_09_1_machine_init) DEFINE_MACHINE("spike_v1.10", spike_v1_10_0_machine_init) - -static void riscv_spike_board_register_types(void) -{ - type_register_static(&spike_v_1_09_1_device); - type_register_static(&spike_v_1_10_0_device); -} - -type_init(riscv_spike_board_register_types); diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index c2aa795981..88b9ad5093 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -382,24 +382,6 @@ static void riscv_virt_board_init(MachineState *machine) serial_hd(0), DEVICE_LITTLE_ENDIAN); } -static int riscv_virt_board_sysbus_device_init(SysBusDevice *sysbusdev) -{ - return 0; -} - -static void riscv_virt_board_class_init(ObjectClass *klass, void *data) -{ - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - k->init = riscv_virt_board_sysbus_device_init; -} - -static const TypeInfo riscv_virt_board_device = { - .name = TYPE_RISCV_VIRT_BOARD, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(RISCVVirtState), - .class_init = riscv_virt_board_class_init, -}; - static void riscv_virt_board_machine_init(MachineClass *mc) { mc->desc = "RISC-V VirtIO Board (Privileged ISA v1.10)"; @@ -408,10 +390,3 @@ static void riscv_virt_board_machine_init(MachineClass *mc) } DEFINE_MACHINE("virt", riscv_virt_board_machine_init) - -static void riscv_virt_board_register_types(void) -{ - type_register_static(&riscv_virt_board_device); -} - -type_init(riscv_virt_board_register_types); diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h index 0aebc576c1..12ad6d2ebb 100644 --- a/include/hw/riscv/sifive_e.h +++ b/include/hw/riscv/sifive_e.h @@ -19,11 +19,6 @@ #ifndef HW_SIFIVE_E_H #define HW_SIFIVE_E_H -#define TYPE_SIFIVE_E "riscv.sifive_e" - -#define SIFIVE_E(obj) \ - OBJECT_CHECK(SiFiveEState, (obj), TYPE_SIFIVE_E) - typedef struct SiFiveEState { /*< private >*/ SysBusDevice parent_obj; diff --git a/include/hw/riscv/sifive_u.h b/include/hw/riscv/sifive_u.h index be38aa09da..94a390566e 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -19,11 +19,6 @@ #ifndef HW_SIFIVE_U_H #define HW_SIFIVE_U_H -#define TYPE_SIFIVE_U "riscv.sifive_u" - -#define SIFIVE_U(obj) \ - OBJECT_CHECK(SiFiveUState, (obj), TYPE_SIFIVE_U) - typedef struct SiFiveUState { /*< private >*/ SysBusDevice parent_obj; diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h index d85a64e33d..8410430614 100644 --- a/include/hw/riscv/spike.h +++ b/include/hw/riscv/spike.h @@ -19,12 +19,6 @@ #ifndef HW_SPIKE_H #define HW_SPIKE_H -#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; @@ -35,7 +29,6 @@ typedef struct { int fdt_size; } SpikeState; - enum { SPIKE_MROM, SPIKE_CLINT, diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index 655e85ddbd..b91a4125dd 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -19,10 +19,6 @@ #ifndef HW_VIRT_H #define HW_VIRT_H -#define TYPE_RISCV_VIRT_BOARD "riscv.virt" -#define VIRT(obj) \ - OBJECT_CHECK(RISCVVirtState, (obj), TYPE_RISCV_VIRT_BOARD) - typedef struct { /*< private >*/ SysBusDevice parent_obj; @@ -45,7 +41,6 @@ enum { VIRT_DRAM }; - enum { UART0_IRQ = 10, VIRTIO_IRQ = 1, /* 1 to 8 */ -- cgit 1.4.1 From 89854803ce3efb16fbc94604e652f152f5102569 Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Mon, 5 Mar 2018 20:22:30 +1300 Subject: RISC-V: Remove EM_RISCV ELF_MACHINE indirection MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Pointless indirection. Other ports use EM_ constants directly. Cc: Sagar Karandikar Cc: Bastian Koppelmann Signed-off-by: Michael Clark Signed-off-by: Palmer Dabbelt Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/riscv/sifive_e.c | 2 +- hw/riscv/sifive_u.c | 2 +- hw/riscv/spike.c | 2 +- hw/riscv/virt.c | 2 +- target/riscv/cpu.h | 1 - 5 files changed, 4 insertions(+), 5 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c index 22dc526713..6fa2238185 100644 --- a/hw/riscv/sifive_e.c +++ b/hw/riscv/sifive_e.c @@ -88,7 +88,7 @@ static uint64_t load_kernel(const char *kernel_filename) if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, - 0, ELF_MACHINE, 1, 0) < 0) { + 0, EM_RISCV, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); exit(1); } diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 5bb495ab9a..84afed4c3b 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -74,7 +74,7 @@ static uint64_t load_kernel(const char *kernel_filename) if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, - 0, ELF_MACHINE, 1, 0) < 0) { + 0, EM_RISCV, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); exit(1); } diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 44eab94e17..9e18c618bf 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -64,7 +64,7 @@ static uint64_t load_kernel(const char *kernel_filename) uint64_t kernel_entry, kernel_high; if (load_elf_ram_sym(kernel_filename, NULL, NULL, - &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0, + &kernel_entry, NULL, &kernel_high, 0, EM_RISCV, 1, 0, NULL, true, htif_symbol_callback) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); exit(1); diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 88b9ad5093..7ef9ba26de 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -68,7 +68,7 @@ static uint64_t load_kernel(const char *kernel_filename) if (load_elf(kernel_filename, NULL, NULL, &kernel_entry, NULL, &kernel_high, - 0, ELF_MACHINE, 1, 0) < 0) { + 0, EM_RISCV, 1, 0) < 0) { error_report("qemu: could not load kernel '%s'", kernel_filename); exit(1); } diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 41e06ac0f9..9871e6feb1 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -34,7 +34,6 @@ #define TCG_GUEST_DEFAULT_MO 0 -#define ELF_MACHINE EM_RISCV #define CPUArchState struct CPURISCVState #include "qemu-common.h" -- cgit 1.4.1 From 5aec3247c190f10654250203a1742490ae7343a2 Mon Sep 17 00:00:00 2001 From: Michael Clark Date: Sun, 4 Mar 2018 11:52:13 +1300 Subject: RISC-V: Mark ROM read-only after copying in code The sifive_u machine already marks its ROM readonly however it has the wrong base address for its mask ROM. This patch fixes the sifive_u mask ROM base address. This commit makes all other boards consistently use mask_rom as the variable name for their ROMs. Boards that use device tree now check that that the device tree fits in the assigned ROM space using the new qemu_fdt_totalsize(void *fdt) interface, adding a bounds check and error message. This can detect truncation. Cc: Sagar Karandikar Cc: Bastian Koppelmann Cc: Palmer Dabbelt Cc: Alistair Francis Signed-off-by: Michael Clark Reviewed-by: Alistair Francis --- hw/riscv/sifive_e.c | 20 +++++++--------- hw/riscv/sifive_u.c | 51 +++++++++++++++++++++------------------ hw/riscv/spike.c | 69 +++++++++++++++++++++++++++++++---------------------- hw/riscv/virt.c | 43 ++++++++++++++++++--------------- 4 files changed, 101 insertions(+), 82 deletions(-) (limited to 'hw/riscv/virt.c') diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c index 6fa2238185..e4ecb7aa4b 100644 --- a/hw/riscv/sifive_e.c +++ b/hw/riscv/sifive_e.c @@ -74,14 +74,6 @@ static const struct MemmapEntry { [SIFIVE_E_DTIM] = { 0x80000000, 0x4000 } }; -static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) -{ - int i; - for (i = 0; i < (len >> 2); i++) { - stl_phys(&address_space_memory, pa + (i << 2), rom[i]); - } -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; @@ -112,6 +104,7 @@ static void riscv_sifive_e_init(MachineState *machine) MemoryRegion *main_mem = g_new(MemoryRegion, 1); MemoryRegion *mask_rom = g_new(MemoryRegion, 1); MemoryRegion *xip_mem = g_new(MemoryRegion, 1); + int i; /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -131,7 +124,7 @@ static void riscv_sifive_e_init(MachineState *machine) memmap[SIFIVE_E_DTIM].base, main_mem); /* Mask ROM */ - memory_region_init_ram(mask_rom, NULL, "riscv.sifive.e.mrom", + memory_region_init_rom(mask_rom, NULL, "riscv.sifive.e.mrom", memmap[SIFIVE_E_MROM].size, &error_fatal); memory_region_add_subregion(sys_mem, memmap[SIFIVE_E_MROM].base, mask_rom); @@ -185,9 +178,12 @@ static void riscv_sifive_e_init(MachineState *machine) 0x00028067, /* 0x1004: jr t0 */ }; - /* copy in the reset vector */ - copy_le32_to_phys(memmap[SIFIVE_E_MROM].base, reset_vec, sizeof(reset_vec)); - memory_region_set_readonly(mask_rom, true); + /* copy in the reset vector in little_endian byte order */ + for (i = 0; i < sizeof(reset_vec) >> 2; i++) { + reset_vec[i] = cpu_to_le32(reset_vec[i]); + } + rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), + memmap[SIFIVE_E_MROM].base, &address_space_memory); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 84afed4c3b..c05dcbba95 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -47,12 +47,14 @@ #include "exec/address-spaces.h" #include "elf.h" +#include + static const struct MemmapEntry { hwaddr base; hwaddr size; } sifive_u_memmap[] = { [SIFIVE_U_DEBUG] = { 0x0, 0x100 }, - [SIFIVE_U_MROM] = { 0x1000, 0x2000 }, + [SIFIVE_U_MROM] = { 0x1000, 0x11000 }, [SIFIVE_U_CLINT] = { 0x2000000, 0x10000 }, [SIFIVE_U_PLIC] = { 0xc000000, 0x4000000 }, [SIFIVE_U_UART0] = { 0x10013000, 0x1000 }, @@ -60,14 +62,6 @@ static const struct MemmapEntry { [SIFIVE_U_DRAM] = { 0x80000000, 0x0 }, }; -static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) -{ - int i; - for (i = 0; i < (len >> 2); i++) { - stl_phys(&address_space_memory, pa + (i << 2), rom[i]); - } -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; @@ -221,9 +215,10 @@ static void riscv_sifive_u_init(MachineState *machine) const struct MemmapEntry *memmap = sifive_u_memmap; SiFiveUState *s = g_new0(SiFiveUState, 1); - MemoryRegion *sys_memory = get_system_memory(); + 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); + int i; /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -239,17 +234,17 @@ static void riscv_sifive_u_init(MachineState *machine) /* register RAM */ memory_region_init_ram(main_mem, NULL, "riscv.sifive.u.ram", machine->ram_size, &error_fatal); - memory_region_add_subregion(sys_memory, memmap[SIFIVE_U_DRAM].base, + memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DRAM].base, main_mem); /* create device tree */ create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); /* boot rom */ - memory_region_init_ram(boot_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_init_rom(mask_rom, NULL, "riscv.sifive.u.mrom", + memmap[SIFIVE_U_MROM].size, &error_fatal); + memory_region_add_subregion(system_memory, memmap[SIFIVE_U_MROM].base, + mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -272,13 +267,23 @@ static void riscv_sifive_u_init(MachineState *machine) /* dtb: */ }; - /* copy in the reset vector */ - copy_le32_to_phys(memmap[SIFIVE_U_MROM].base, reset_vec, sizeof(reset_vec)); + /* copy in the reset vector in little_endian byte order */ + for (i = 0; i < sizeof(reset_vec) >> 2; i++) { + reset_vec[i] = cpu_to_le32(reset_vec[i]); + } + rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), + memmap[SIFIVE_U_MROM].base, &address_space_memory); /* copy in the device tree */ - 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); + if (fdt_pack(s->fdt) || fdt_totalsize(s->fdt) > + memmap[SIFIVE_U_MROM].size - sizeof(reset_vec)) { + error_report("not enough space to store device-tree"); + exit(1); + } + qemu_fdt_dumpdtb(s->fdt, fdt_totalsize(s->fdt)); + rom_add_blob_fixed_as("mrom.fdt", s->fdt, fdt_totalsize(s->fdt), + memmap[SIFIVE_U_MROM].base + sizeof(reset_vec), + &address_space_memory); /* MMIO */ s->plic = sifive_plic_create(memmap[SIFIVE_U_PLIC].base, @@ -292,9 +297,9 @@ static void riscv_sifive_u_init(MachineState *machine) SIFIVE_U_PLIC_CONTEXT_BASE, SIFIVE_U_PLIC_CONTEXT_STRIDE, memmap[SIFIVE_U_PLIC].size); - sifive_uart_create(sys_memory, memmap[SIFIVE_U_UART0].base, + sifive_uart_create(system_memory, memmap[SIFIVE_U_UART0].base, serial_hd(0), SIFIVE_PLIC(s->plic)->irqs[SIFIVE_U_UART0_IRQ]); - /* sifive_uart_create(sys_memory, memmap[SIFIVE_U_UART1].base, + /* sifive_uart_create(system_memory, memmap[SIFIVE_U_UART1].base, serial_hd(1), SIFIVE_PLIC(s->plic)->irqs[SIFIVE_U_UART1_IRQ]); */ sifive_clint_create(memmap[SIFIVE_U_CLINT].base, memmap[SIFIVE_U_CLINT].size, smp_cpus, diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 9e18c618bf..f94e2b6707 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -42,23 +42,17 @@ #include "exec/address-spaces.h" #include "elf.h" +#include + static const struct MemmapEntry { hwaddr base; hwaddr size; } spike_memmap[] = { - [SPIKE_MROM] = { 0x1000, 0x2000 }, + [SPIKE_MROM] = { 0x1000, 0x11000 }, [SPIKE_CLINT] = { 0x2000000, 0x10000 }, [SPIKE_DRAM] = { 0x80000000, 0x0 }, }; -static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) -{ - int i; - for (i = 0; i < (len >> 2); i++) { - stl_phys(&address_space_memory, pa + (i << 2), rom[i]); - } -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; @@ -173,7 +167,8 @@ 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); + int i; /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -196,9 +191,10 @@ 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", - s->fdt_size + 0x2000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_init_rom(mask_rom, NULL, "riscv.spike.mrom", + memmap[SPIKE_MROM].size, &error_fatal); + memory_region_add_subregion(system_memory, memmap[SPIKE_MROM].base, + mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -221,16 +217,26 @@ static void spike_v1_10_0_board_init(MachineState *machine) /* dtb: */ }; - /* copy in the reset vector */ - copy_le32_to_phys(memmap[SPIKE_MROM].base, reset_vec, sizeof(reset_vec)); + /* copy in the reset vector in little_endian byte order */ + for (i = 0; i < sizeof(reset_vec) >> 2; i++) { + reset_vec[i] = cpu_to_le32(reset_vec[i]); + } + rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), + memmap[SPIKE_MROM].base, &address_space_memory); /* copy in the device tree */ - qemu_fdt_dumpdtb(s->fdt, s->fdt_size); - cpu_physical_memory_write(memmap[SPIKE_MROM].base + sizeof(reset_vec), - s->fdt, s->fdt_size); + if (fdt_pack(s->fdt) || fdt_totalsize(s->fdt) > + memmap[SPIKE_MROM].size - sizeof(reset_vec)) { + error_report("not enough space to store device-tree"); + exit(1); + } + qemu_fdt_dumpdtb(s->fdt, fdt_totalsize(s->fdt)); + rom_add_blob_fixed_as("mrom.fdt", s->fdt, fdt_totalsize(s->fdt), + memmap[SPIKE_MROM].base + sizeof(reset_vec), + &address_space_memory); /* initialize HTIF using symbols found in load_kernel */ - htif_mm_init(system_memory, boot_rom, &s->soc.harts[0].env, serial_hd(0)); + htif_mm_init(system_memory, mask_rom, &s->soc.harts[0].env, serial_hd(0)); /* Core Local Interruptor (timer and IPI) */ sifive_clint_create(memmap[SPIKE_CLINT].base, memmap[SPIKE_CLINT].size, @@ -244,7 +250,8 @@ 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); + int i; /* Initialize SOC */ object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); @@ -264,9 +271,10 @@ static void spike_v1_09_1_board_init(MachineState *machine) main_mem); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv.spike.bootrom", - 0x40000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_init_rom(mask_rom, NULL, "riscv.spike.mrom", + memmap[SPIKE_MROM].size, &error_fatal); + memory_region_add_subregion(system_memory, memmap[SPIKE_MROM].base, + mask_rom); if (machine->kernel_filename) { load_kernel(machine->kernel_filename); @@ -319,15 +327,20 @@ static void spike_v1_09_1_board_init(MachineState *machine) g_free(isa); size_t config_string_len = strlen(config_string); - /* copy in the reset vector */ - copy_le32_to_phys(memmap[SPIKE_MROM].base, reset_vec, sizeof(reset_vec)); + /* copy in the reset vector in little_endian byte order */ + for (i = 0; i < sizeof(reset_vec) >> 2; i++) { + reset_vec[i] = cpu_to_le32(reset_vec[i]); + } + rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), + memmap[SPIKE_MROM].base, &address_space_memory); /* copy in the config string */ - cpu_physical_memory_write(memmap[SPIKE_MROM].base + sizeof(reset_vec), - config_string, config_string_len); + rom_add_blob_fixed_as("mrom.reset", config_string, config_string_len, + memmap[SPIKE_MROM].base + sizeof(reset_vec), + &address_space_memory); /* initialize HTIF using symbols found in load_kernel */ - htif_mm_init(system_memory, boot_rom, &s->soc.harts[0].env, serial_hd(0)); + htif_mm_init(system_memory, mask_rom, &s->soc.harts[0].env, serial_hd(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 7ef9ba26de..ad03113e0f 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -40,13 +40,15 @@ #include "exec/address-spaces.h" #include "elf.h" +#include + static const struct MemmapEntry { hwaddr base; hwaddr size; } virt_memmap[] = { [VIRT_DEBUG] = { 0x0, 0x100 }, - [VIRT_MROM] = { 0x1000, 0x2000 }, - [VIRT_TEST] = { 0x4000, 0x1000 }, + [VIRT_MROM] = { 0x1000, 0x11000 }, + [VIRT_TEST] = { 0x100000, 0x1000 }, [VIRT_CLINT] = { 0x2000000, 0x10000 }, [VIRT_PLIC] = { 0xc000000, 0x4000000 }, [VIRT_UART0] = { 0x10000000, 0x100 }, @@ -54,14 +56,6 @@ static const struct MemmapEntry { [VIRT_DRAM] = { 0x80000000, 0x0 }, }; -static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len) -{ - int i; - for (i = 0; i < (len >> 2); i++) { - stl_phys(&address_space_memory, pa + (i << 2), rom[i]); - } -} - static uint64_t load_kernel(const char *kernel_filename) { uint64_t kernel_entry, kernel_high; @@ -272,7 +266,7 @@ 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; @@ -299,9 +293,10 @@ static void riscv_virt_board_init(MachineState *machine) fdt = create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); /* boot rom */ - memory_region_init_ram(boot_rom, NULL, "riscv_virt_board.bootrom", - s->fdt_size + 0x2000, &error_fatal); - memory_region_add_subregion(system_memory, 0x0, boot_rom); + memory_region_init_rom(mask_rom, NULL, "riscv_virt_board.mrom", + memmap[VIRT_MROM].size, &error_fatal); + memory_region_add_subregion(system_memory, memmap[VIRT_MROM].base, + mask_rom); if (machine->kernel_filename) { uint64_t kernel_entry = load_kernel(machine->kernel_filename); @@ -335,13 +330,23 @@ static void riscv_virt_board_init(MachineState *machine) /* dtb: */ }; - /* copy in the reset vector */ - copy_le32_to_phys(memmap[VIRT_MROM].base, reset_vec, sizeof(reset_vec)); + /* copy in the reset vector in little_endian byte order */ + for (i = 0; i < sizeof(reset_vec) >> 2; i++) { + reset_vec[i] = cpu_to_le32(reset_vec[i]); + } + rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), + memmap[VIRT_MROM].base, &address_space_memory); /* copy in the device tree */ - qemu_fdt_dumpdtb(s->fdt, s->fdt_size); - cpu_physical_memory_write(memmap[VIRT_MROM].base + sizeof(reset_vec), - s->fdt, s->fdt_size); + if (fdt_pack(s->fdt) || fdt_totalsize(s->fdt) > + memmap[VIRT_MROM].size - sizeof(reset_vec)) { + error_report("not enough space to store device-tree"); + exit(1); + } + qemu_fdt_dumpdtb(s->fdt, fdt_totalsize(s->fdt)); + rom_add_blob_fixed_as("mrom.fdt", s->fdt, fdt_totalsize(s->fdt), + memmap[VIRT_MROM].base + sizeof(reset_vec), + &address_space_memory); /* create PLIC hart topology configuration string */ plic_hart_config_len = (strlen(VIRT_PLIC_HART_CONFIG) + 1) * smp_cpus; -- cgit 1.4.1