rework project structure

1 files changed, 45 insertions, 0 deletions

diff --git a/kernel/riscv/kernel.c b/kernel/riscv/kernel.c
new file mode 100644
index 0000000..4e72e2a
--- /dev/null
+++ b/kernel/riscv/kernel.c
@@ -0,0 +1,45 @@
+#include <sys/log.h>
+#include <sys/mem.h>
+#include <sys/cpio.h>
+#include <early/bump.h>
+
+#define KERNEL_SIZE 3 * 1024 * 1024
+
+uint32_t user_regs[31];
+
+void kernel_main(size_t hart, void *fdt) {
+    printk("Doing kernel init with hard ID %d\n", hart);
+
+    struct dt_node *head = dt_parse(fdt);
+    struct mem_info *info = km_find_memory(head);
+
+
+    if (!info) {
+        printk("failed to find memory info!\n");
+        return;
+    }
+
+    info->start = (void *)((uint8_t *)info->start + KERNEL_SIZE);
+    info->size -= KERNEL_SIZE;
+
+    km_init(info);
+
+    printk("memory blocks initialized\n");
+
+    size_t len = 0;
+    uint32_t *initrd = dt_get_prop(head, "initrd", &len);
+    if (!initrd || len < 8) {
+        printk("failed to find initrd!\n");
+        return;
+    }
+    uint32_t base = btohi(initrd[0]);
+    uint32_t size = btohi(initrd[1]);
+    
+    char *file = cpio_get_file((void*)base, (size_t)size, "/sbin/init");
+    (void)file;
+}
+
+void kernel_trap() {
+
+    
+}