We want to use a post_init hook to call the cpu_instance_init callback from each accelerator, moving repetitive code from the cpu_init() functions to be handled by the accelerator class. But first we need to ensure that we don't change behavior - vendor CPUs shouldn't expose user properties, generic CPUs should expose.
Create a new 'user_extension_properties' class property. It'll be initialized during the class init of each CPU type, where only generic (dynamic) CPUs will enable it. This new property will be used shortly. Signed-off-by: Daniel Henrique Barboza <dbarb...@ventanamicro.com> --- target/riscv/cpu-qom.h | 3 +++ target/riscv/cpu.c | 46 +++++++++++++++++++++++++++++++++--------- 2 files changed, 40 insertions(+), 9 deletions(-) diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h index f3fbe37a2c..7c76dc0dcc 100644 --- a/target/riscv/cpu-qom.h +++ b/target/riscv/cpu-qom.h @@ -24,6 +24,7 @@ #define TYPE_RISCV_CPU "riscv-cpu" #define TYPE_RISCV_DYNAMIC_CPU "riscv-dynamic-cpu" +#define TYPE_RISCV_VENDOR_CPU "riscv-vendor-cpu" #define RISCV_CPU_TYPE_SUFFIX "-" TYPE_RISCV_CPU #define RISCV_CPU_TYPE_NAME(name) (name RISCV_CPU_TYPE_SUFFIX) @@ -68,5 +69,7 @@ struct RISCVCPUClass { /*< public >*/ DeviceRealize parent_realize; ResettablePhases parent_phases; + + bool user_extension_properties; }; #endif /* RISCV_CPU_QOM_H */ diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 839b83e52a..e2e8724dc2 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1975,6 +1975,20 @@ void riscv_cpu_list(void) g_slist_free(list); } +static void riscv_dynamic_cpu_class_init(ObjectClass *c, void *data) +{ + RISCVCPUClass *rcc = RISCV_CPU_CLASS(c); + + rcc->user_extension_properties = true; +} + +static void riscv_vendor_cpu_class_init(ObjectClass *c, void *data) +{ + RISCVCPUClass *rcc = RISCV_CPU_CLASS(c); + + rcc->user_extension_properties = false; +} + #define DEFINE_CPU(type_name, initfn) \ { \ .name = type_name, \ @@ -1989,6 +2003,13 @@ void riscv_cpu_list(void) .instance_init = initfn \ } +#define DEFINE_VENDOR_CPU(type_name, initfn) \ + { \ + .name = type_name, \ + .parent = TYPE_RISCV_VENDOR_CPU, \ + .instance_init = initfn \ + } + static const TypeInfo riscv_cpu_type_infos[] = { { .name = TYPE_RISCV_CPU, @@ -2003,6 +2024,13 @@ static const TypeInfo riscv_cpu_type_infos[] = { { .name = TYPE_RISCV_DYNAMIC_CPU, .parent = TYPE_RISCV_CPU, + .class_init = riscv_dynamic_cpu_class_init, + .abstract = true, + }, + { + .name = TYPE_RISCV_VENDOR_CPU, + .parent = TYPE_RISCV_CPU, + .class_init = riscv_vendor_cpu_class_init, .abstract = true, }, DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_ANY, riscv_any_cpu_init), @@ -2012,17 +2040,17 @@ static const TypeInfo riscv_cpu_type_infos[] = { #endif #if defined(TARGET_RISCV32) DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE32, rv32_base_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_IBEX, rv32_ibex_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31, rv32_sifive_e_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E34, rv32_imafcu_nommu_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32_sifive_u_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_IBEX, rv32_ibex_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E31, rv32_sifive_e_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E34, rv32_imafcu_nommu_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32_sifive_u_cpu_init), #elif defined(TARGET_RISCV64) DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE64, rv64_base_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51, rv64_sifive_e_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64_sifive_u_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_SHAKTI_C, rv64_sifive_u_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_THEAD_C906, rv64_thead_c906_cpu_init), - DEFINE_CPU(TYPE_RISCV_CPU_VEYRON_V1, rv64_veyron_v1_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E51, rv64_sifive_e_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64_sifive_u_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C, rv64_sifive_u_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, rv64_thead_c906_cpu_init), + DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1, rv64_veyron_v1_cpu_init), DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128, rv128_base_cpu_init), #endif }; -- 2.41.0