feat: (twimap) provide an easy way for mapping kernel objects into filesystem

[lunaix-os.git] / lunaix-os / kernel / proc0.c

diff --git a/lunaix-os/kernel/proc0.c b/lunaix-os/kernel/proc0.c
index 4cc414c4d28cd92b8b91ae66b40bc2b496ecf6ab..e242196f0b969255bbf848b3b723baf2d3ceb599 100644 (file)
--- a/lunaix-os/kernel/proc0.c
+++ b/lunaix-os/kernel/proc0.c
@@ -1,18 +1,33 @@
-#include <arch/x86/boot/multiboot.h>
+#include <lunaix/block.h>
 #include <lunaix/common.h>
+#include <lunaix/fctrl.h>
+#include <lunaix/fs.h>
+#include <lunaix/fs/twifs.h>
 #include <lunaix/lunistd.h>
+#include <lunaix/lxconsole.h>
+#include <lunaix/mm/cake.h>
 #include <lunaix/mm/pmm.h>
+#include <lunaix/mm/valloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/peripheral/ps2kbd.h>
 #include <lunaix/proc.h>
 #include <lunaix/spike.h>
 #include <lunaix/syscall.h>
 #include <lunaix/syslog.h>
-#include <stddef.h>
+#include <lunaix/types.h>
 
 #include <hal/acpi/acpi.h>
+#include <hal/ahci/ahci.h>
 #include <hal/apic.h>
 #include <hal/ioapic.h>
+#include <hal/pci.h>
+#include <hal/rtc.h>
+
+#include <arch/x86/boot/multiboot.h>
+
+#include <klibc/string.h>
+
+#include <ulibc/stdio.h>
 
 LOG_MODULE("PROC0")
 
@@ -31,13 +46,70 @@ unlock_reserved_memory();
 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__
 __proc0_usr()
 {
-    if (!fork()) {
-        asm("jmp _lxinit_main");
+    // 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);
+
     while (1) {
         yield();
     }
@@ -82,42 +154,36 @@ extern multiboot_info_t* _k_init_mb_info; /* k_init.c */
 void
 init_platform()
 {
-    assert_msg(kalloc_init(), "Fail to initialize heap");
-
-    // Fuck it, I will no longer bother this little 1MiB
-    // I just release 4 pages for my APIC & IOAPIC remappings
-    // for (size_t i = 0; i < 3; i++) {
-    //     vmm_del_mapping(PD_REFERENCED, (void*)(i << PG_SIZE_BITS));
-    // }
-
     // 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();
 
+    rtc_init();
     acpi_init(_k_init_mb_info);
-    uintptr_t ioapic_addr = acpi_get_context()->madt.ioapic->ioapic_addr;
-    pmm_mark_page_occupied(
-      KERNEL_PID, FLOOR(__APIC_BASE_PADDR, PG_SIZE_BITS), 0);
-    pmm_mark_page_occupied(KERNEL_PID, FLOOR(ioapic_addr, PG_SIZE_BITS), 0);
-
-    vmm_set_mapping(
-      PD_REFERENCED, MMIO_APIC, __APIC_BASE_PADDR, PG_PREM_RW, VMAP_NULL);
-    vmm_set_mapping(
-      PD_REFERENCED, MMIO_IOAPIC, ioapic_addr, PG_PREM_RW, VMAP_NULL);
-
     apic_init();
     ioapic_init();
     timer_init(SYS_TIMER_FREQUENCY_HZ);
     clock_init();
     ps2_kbd_init();
+    pci_init();
+    block_init();
+    ahci_init();
 
     syscall_install();
 
+    console_start_flushing();
+    console_flush();
+
+    cake_export();
     unlock_reserved_memory();
 
     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 = L1_INDEX(KERNEL_MM_BASE); i < 1023; i++) {
+        vmm_set_mapping(PD_REFERENCED, i << 22, 0, 0, VMAP_NOMAP);
+    }
 }
 
 void
@@ -156,6 +222,8 @@ __do_reserved_memory(int unlock)
                     break;
                 }
                 vmm_set_mapping(PD_REFERENCED, _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;
@@ -163,6 +231,9 @@ __do_reserved_memory(int unlock)
             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
                 vmm_del_mapping(PD_REFERENCED, _pa);
+                if (mmap.type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) {
+                    pmm_mark_page_free(_pa >> PG_SIZE_BITS);
+                }
             }
         }
     }