class sim_t : public htif_t
{
public:
- sim_t(const char* isa, size_t _nprocs, size_t mem_mb, bool halted,
- const std::vector<std::string>& args);
+ sim_t(const char* isa, size_t _nprocs, bool halted, reg_t start_pc,
+ std::vector<std::pair<reg_t, mem_t*>> mems,
+ const std::vector<std::string>& args, const std::vector<int> hartids,
+ unsigned progsize, unsigned max_bus_master_bits, bool require_authentication);
~sim_t();
// run the simulation to completion
void set_remote_bitbang(remote_bitbang_t* remote_bitbang) {
this->remote_bitbang = remote_bitbang;
}
- const char* get_dts() { return dts.c_str(); }
+ const char* get_dts() { if (dts.empty()) reset(); return dts.c_str(); }
processor_t* get_core(size_t i) { return procs.at(i); }
unsigned nprocs() const { return procs.size(); }
- debug_module_t debug_module;
-
private:
- char* mem; // main memory
- size_t memsz; // memory size in bytes
+ std::vector<std::pair<reg_t, mem_t*>> mems;
mmu_t* debug_mmu; // debug port into main memory
std::vector<processor_t*> procs;
+ reg_t start_pc;
std::string dts;
std::unique_ptr<rom_device_t> boot_rom;
std::unique_ptr<clint_t> clint;
remote_bitbang_t* remote_bitbang;
// memory-mapped I/O routines
- bool addr_is_mem(reg_t addr) {
- return addr >= DRAM_BASE && addr < DRAM_BASE + memsz;
- }
- char* addr_to_mem(reg_t addr) { return mem + addr - DRAM_BASE; }
- reg_t mem_to_addr(char* x) { return x - mem + DRAM_BASE; }
+ char* addr_to_mem(reg_t addr);
bool mmio_load(reg_t addr, size_t len, uint8_t* bytes);
bool mmio_store(reg_t addr, size_t len, const uint8_t* bytes);
void make_dtb();
friend class processor_t;
friend class mmu_t;
+ friend class debug_module_t;
// htif
friend void sim_thread_main(void*);
context_t* host;
context_t target;
- void reset() { }
+ void reset();
void idle();
void read_chunk(addr_t taddr, size_t len, void* dst);
void write_chunk(addr_t taddr, size_t len, const void* src);
size_t chunk_align() { return 8; }
size_t chunk_max_size() { return 8; }
+
+public:
+ // Initialize this after procs, because in debug_module_t::reset() we
+ // enumerate processors, which segfaults if procs hasn't been initialized
+ // yet.
+ debug_module_t debug_module;
};
extern volatile bool ctrlc_pressed;