Function sys_memory_get_page_attribute

kernel/cellos/src/sys_memory.cpp:235–267

}

error_code sys_memory_get_page_attribute(cpu_thread &cpu, u32 addr,
                                         vm::ptr<sys_page_attr_t> attr) {
  cpu.state += cpu_flag::wait;

  sys_memory.trace("sys_memory_get_page_attribute(addr=0x%x, attr=*0x%x)", addr,
                   attr);

  vm::writer_lock rlock;

  if (!vm::check_addr(addr) || addr >= SPU_FAKE_BASE_ADDR) {
    return CELL_EINVAL;
  }

  if (!vm::check_addr(attr.addr(), vm::page_readable, attr.size())) {
    return CELL_EFAULT;
  }

  attr->attribute = 0x40000ull; // SYS_MEMORY_PROT_READ_WRITE (TODO)
  attr->access_right = addr >> 28 == 0xdu
                           ? SYS_MEMORY_ACCESS_RIGHT_PPU_THR
                           : SYS_MEMORY_ACCESS_RIGHT_ANY; // (TODO)

  if (vm::check_addr(addr, vm::page_1m_size)) {
    attr->page_size = 0x100000;
  } else if (vm::check_addr(addr, vm::page_64k_size)) {
    attr->page_size = 0x10000;
  } else {
    attr->page_size = 4096;
  }

  attr->pad = 0; // Always write 0
  return CELL_OK;
}

error_code
sys_memory_get_user_memory_size(cpu_thread &cpu,