X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/6195e9739894771c56ea9bd3cba7bd7d04d8e7bc..2804ceee4ce65d49e9d52d0ed817317c0ac9efdc:/lunaix-os/kernel/proc0.c diff --git a/lunaix-os/kernel/proc0.c b/lunaix-os/kernel/proc0.c index e943974..54734f3 100644 --- a/lunaix-os/kernel/proc0.c +++ b/lunaix-os/kernel/proc0.c @@ -1,5 +1,8 @@ -#include +#include #include +#include +#include +#include #include #include #include @@ -7,17 +10,26 @@ #include #include #include +#include #include #include #include #include -#include +#include +#include #include -#include +#include #include #include #include +#include + +#include + +#include + +#include LOG_MODULE("PROC0") @@ -36,8 +48,12 @@ unlock_reserved_memory(); void __do_reserved_memory(int unlock); -//#define USE_DEMO -#define DEMO_SIGNAL +#define USE_DEMO +// #define DEMO_SIGNAL +// #define DEMO_READDIR +// #define DEMO_IOTEST +// #define DEMO_INPUT_TEST +#define DEMO_SIMPLE_SH extern void _pconsole_main(); @@ -48,22 +64,47 @@ _signal_demo_main(); extern void _lxinit_main(); +extern void +_readdir_main(); + +extern void +_iotest_main(); + +extern void +input_test(); + +extern void +sh_main(); + void __USER__ __proc0_usr() { + // 打开tty设备(控制台),作为标准输入输出。 + // tty设备属于序列设备(Sequential Device),该类型设备的上层读写 + // 无须经过Lunaix的缓存层,而是直接下发到底层驱动。(不受FO_DIRECT的影响) + int fdstdout = open("/dev/tty", 0); + int fdstdin = dup2(stdout, 1); + pid_t p; - if (!fork()) { - _pconsole_main(); - } if (!(p = fork())) { #ifndef USE_DEMO _exit(0); #elif defined DEMO_SIGNAL _signal_demo_main(); +#elif defined DEMO_READDIR + _readdir_main(); +#elif defined DEMO_IOTEST + _iotest_main(); +#elif defined DEMO_INPUT_TEST + input_test(); +#elif defined DEMO_SIMPLE_SH + sh_main(); #else _lxinit_main(); #endif + printf("==== test end ====\n"); + _exit(0); } waitpid(p, 0, 0); @@ -88,6 +129,7 @@ __proc0() init_proc_user_space(__current); + // user space asm volatile("movw %0, %%ax\n" "movw %%ax, %%es\n" "movw %%ax, %%ds\n" @@ -112,37 +154,52 @@ extern multiboot_info_t* _k_init_mb_info; /* k_init.c */ void init_platform() { + kprintf(KINFO "\033[11;0mLunaixOS \033[39;49m\n"); + // 锁定所有系统预留页(内存映射IO,ACPI之类的),并且进行1:1映射 lock_reserved_memory(); - cake_init(); - - assert_msg(kalloc_init(), "Fail to initialize heap"); - valloc_init(); - + // firmware acpi_init(_k_init_mb_info); + + // die apic_init(); ioapic_init(); + + // debugger + serial_init(); + sdbg_init(); + + // timers & clock + rtc_init(); timer_init(SYS_TIMER_FREQUENCY_HZ); clock_init(); + + // peripherals & chipset features ps2_kbd_init(); pci_init(); + block_init(); ahci_init(); - ahci_list_device(); - - cake_stats(); - - syscall_install(); + // console console_start_flushing(); console_flush(); + // expose cake allocator states to vfs + cake_export(); + unlock_reserved_memory(); + // clean up for (size_t i = 0; i < (uintptr_t)(&__init_hhk_end); i += PG_SIZE) { vmm_del_mapping(PD_REFERENCED, (void*)i); pmm_free_page(KERNEL_PID, (void*)i); } + + // reserve higher half + for (size_t i = L1_INDEX(KERNEL_MM_BASE); i < 1023; i++) { + vmm_set_mapping(PD_REFERENCED, i << 22, 0, 0, VMAP_NOMAP); + } } void @@ -174,6 +231,10 @@ __do_reserved_memory(int unlock) size_t pg_num = CEIL(mmap.len_low, PG_SIZE_BITS); size_t j = 0; if (!unlock) { + kprintf("mem: freeze: %p..%p type=%x\n", + pa, + pa + pg_num * PG_SIZE, + mmap.type); for (; j < pg_num; j++) { uintptr_t _pa = pa + (j << PG_SIZE_BITS); if (_pa >= KERNEL_MM_BASE) { @@ -187,6 +248,10 @@ __do_reserved_memory(int unlock) // Save the progress for later unmapping. mmaps[i].len_low = j * PG_SIZE; } else { + kprintf("mem: reclaim: %p..%p type=%x\n", + pa, + pa + pg_num * PG_SIZE, + mmap.type); for (; j < pg_num; j++) { uintptr_t _pa = pa + (j << PG_SIZE_BITS); vmm_del_mapping(PD_REFERENCED, _pa);