#include <lunaix/block.h>
#include <lunaix/common.h>
+#include <lunaix/exec.h>
#include <lunaix/foptions.h>
#include <lunaix/fs.h>
+#include <lunaix/fs/probe_boot.h>
#include <lunaix/fs/twifs.h>
#include <lunaix/lxconsole.h>
#include <lunaix/mm/cake.h>
#include <lunaix/syslog.h>
#include <lunaix/types.h>
-#include <usr/fcntl.h>
-#include <usr/sys/lunaix.h>
-#include <usr/unistd.h>
-
#include <sdbg/protocol.h>
#include <hal/acpi/acpi.h>
#include <klibc/string.h>
-#include <ulibc/stdio.h>
-
LOG_MODULE("PROC0")
-extern void
-_lxinit_main(); /* lxinit.c */
-
void
init_platform();
void
__do_reserved_memory(int unlock);
-#define USE_DEMO
-// #define DEMO_SIGNAL
-// #define DEMO_READDIR
-// #define DEMO_IOTEST
-// #define DEMO_INPUT_TEST
-#define DEMO_SIMPLE_SH
-
-extern void
-_pconsole_main();
-
-extern void
-_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__
-__setup_dir()
+int
+mount_bootmedium()
{
- int errno;
- mkdir("/mnt");
- mkdir("/mnt/lunaix-os");
+ struct v_dnode* dnode;
+ int errno = 0;
+ struct device* dev = probe_boot_medium();
+ if (!dev) {
+ kprintf(KERROR "fail to acquire device. (%d)", errno);
+ return 0;
+ }
- if ((errno = mount("/dev/sdb", "/mnt/lunaix-os", "iso9660", 0))) {
- syslog(2, "fail mounting boot medium. (%d)\n", errno);
+ if ((errno = vfs_mount("/mnt/lunaix-os", "iso9660", dev, 0))) {
+ kprintf(KERROR "fail to mount boot medium. (%d)", errno);
+ return 0;
}
+
+ return 1;
}
-void __USER__
-__proc0_usr()
+int
+exec_initd()
{
- // 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);
-
- __setup_dir();
-
- pid_t p;
-
- 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);
+ int errno = 0;
+
+ if ((errno = exec_kexecve("/mnt/lunaix-os/usr/bin/init", NULL, NULL))) {
+ goto fail;
}
- waitpid(p, 0, 0);
+ fail("should not reach");
- while (1) {
- yield();
- }
+fail:
+ kprintf(KERROR "fail to load initd. (%d)", errno);
+ return 0;
}
/**
init_proc_user_space(__current);
- // user space
- asm volatile("movw %0, %%ax\n"
- "movw %%ax, %%es\n"
- "movw %%ax, %%ds\n"
- "movw %%ax, %%fs\n"
- "movw %%ax, %%gs\n"
- "pushl %0\n"
- "pushl %1\n"
- "pushl %2\n"
- "pushl %3\n"
- "retf" ::"i"(UDATA_SEG),
- "i"(USTACK_TOP & ~0xf),
- "i"(UCODE_SEG),
- "r"(__proc0_usr)
- : "eax", "memory");
+ if (!mount_bootmedium() || !exec_initd()) {
+ while (1) {
+ asm("hlt");
+ }
+ // should not reach
+ }
}
-extern uint8_t __kernel_start; /* link/linker.ld */
-extern uint8_t __kernel_end; /* link/linker.ld */
-extern uint8_t __init_hhk_end; /* link/linker.ld */
+extern u8_t __kernel_start; /* link/linker.ld */
+extern u8_t __kernel_end; /* link/linker.ld */
+extern u8_t __init_hhk_end; /* link/linker.ld */
extern multiboot_info_t* _k_init_mb_info; /* k_init.c */
void
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);
+ for (size_t i = 0; i < (ptr_t)(&__init_hhk_end); i += PG_SIZE) {
+ vmm_del_mapping(VMS_SELF, (ptr_t)i);
+ pmm_free_page(KERNEL_PID, (ptr_t)i);
}
}
void
__do_reserved_memory(int unlock)
{
- multiboot_memory_map_t* mmaps = _k_init_mb_info->mmap_addr;
+ multiboot_memory_map_t* mmaps =
+ (multiboot_memory_map_t*)_k_init_mb_info->mmap_addr;
+
size_t map_size =
_k_init_mb_info->mmap_length / sizeof(multiboot_memory_map_t);
+
// v_mapping mapping;
for (unsigned int i = 0; i < map_size; i++) {
multiboot_memory_map_t mmap = mmaps[i];
- uint8_t* pa = PG_ALIGN(mmap.addr_low);
+ ptr_t pa = PG_ALIGN(mmap.addr_low);
+
if (mmap.type == MULTIBOOT_MEMORY_AVAILABLE || pa <= MEM_4MB) {
// Don't fuck up our kernel code or any free area!
continue;
}
+
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);
+ ptr_t _pa = pa + (j << PG_SIZE_BITS);
if (_pa >= KERNEL_MM_BASE) {
// Don't fuck up our kernel space!
break;
}
- vmm_set_mapping(PD_REFERENCED, _pa, _pa, PG_PREM_R, VMAP_NULL);
+ vmm_set_mapping(VMS_SELF, _pa, _pa, PG_PREM_R, VMAP_NULL);
pmm_mark_page_occupied(
KERNEL_PID, _pa >> PG_SIZE_BITS, PP_FGLOCKED);
}
+
// Save the progress for later unmapping.
mmaps[i].len_low = j * PG_SIZE;
} else {
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);
+ ptr_t _pa = pa + (j << PG_SIZE_BITS);
+ vmm_del_mapping(VMS_SELF, _pa);
if (mmap.type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) {
pmm_mark_page_free(_pa >> PG_SIZE_BITS);
}
git://scm.lunaixsky.com / lunaix-os.git / blobdiff