feat: a file system mapping for pci devices

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

diff --git a/lunaix-os/kernel/proc0.c b/lunaix-os/kernel/proc0.c
index c02cbe1f3087f35ad9f2e4a6587c57a15f2c4411..bdc23ced68618e2d89f95096b81c9471f752ae84 100644 (file)
--- a/lunaix-os/kernel/proc0.c
+++ b/lunaix-os/kernel/proc0.c
@@ -27,6 +27,8 @@
 
 #include <klibc/string.h>
 
+#include <ulibc/stdio.h>
+
 LOG_MODULE("PROC0")
 
 extern void
@@ -48,7 +50,8 @@ __do_reserved_memory(int unlock);
 // #define DEMO_SIGNAL
 // #define DEMO_READDIR
 // #define DEMO_IOTEST
-#define DEMO_INPUT_TEST
+// #define DEMO_INPUT_TEST
+#define DEMO_SIMPLE_SH
 
 extern void
 _pconsole_main();
@@ -68,14 +71,17 @@ _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 stdout = open("/dev/tty", 0);
-    int stdin = dup2(stdout, 1);
+    int fdstdout = open("/dev/tty", 0);
+    int fdstdin = dup2(stdout, 1);
 
     pid_t p;
     // if (!fork()) {
@@ -93,9 +99,12 @@ __proc0_usr()
         _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);
     }
 
@@ -148,9 +157,6 @@ init_platform()
     // 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();
 
-    // we are using no kalloc!
-    // assert_msg(kalloc_init(), "Fail to initialize heap");
-
     rtc_init();
     acpi_init(_k_init_mb_info);
     apic_init();
@@ -161,8 +167,6 @@ init_platform()
     pci_init();
     block_init();
     ahci_init();
-    // ahci_list_device();
-    // cake_stats();
 
     syscall_install();
 
@@ -175,6 +179,10 @@ init_platform()
         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