Record networking and DMA development progress

Add the current OS source tree, build scripts, system image layout, and development notes covering DMA page allocation, e1000 bring-up, net API dispatch, and DHCP work in progress.
2026-07-02 16:17:09 +08:00
parent fbc14631e3
commit f1a2a110d7
182 changed files with 16472 additions and 0 deletions
@@ -0,0 +1,54 @@
+#include <utsm/log.h>
+#include <utsm/arena.h>
+#include <utsm/utsm.h>
+#include <utsm/drr.h>
+#include <utsm/dkm.h>
+#include <utsm/idt.h>
+#include <utsm/dsk.h>
+#include <utsm/block.h>
+#include <utsm/net.h>
+
+void arch_halt_forever(void);
+
+void kernel_main(void) {
+    serial_init();
+    log_info("[UTSM] boot");
+
+    idt_init();
+
+    log_info("[UTSM] arena init begin");
+    arena_init();
+    log_info("[UTSM] arena init ok");
+
+    log_info("[UTSM] dma init begin");
+    dma_init();
+    log_info("[UTSM] dma init ok");
+
+    log_info("[UTSM] net registry init begin");
+    net_init();
+    log_info("[UTSM] net registry init ok");
+
+    log_info("[UTSM] drr stub init begin");
+    drr_stub_init();
+    log_info("[UTSM] drr stub init ok");
+
+    log_info("[UTSM] core init begin");
+    utsm_init();
+    log_info("[UTSM] init ok");
+
+    dkm_init();
+    dkm_fill_platform_info();
+    dsm_load_by_manifest();
+
+    int result = utsm_selftest_run();
+    if (result == 0) {
+        log_info("[UTSM] SELFTEST PASS");
+        if (dsk_load_and_jump() != 0) {
+            log_error("[UTSM] DSK jump failed");
+        }
+    } else {
+        log_error("[UTSM] SELFTEST FAIL");
+    }
+
+    arch_halt_forever();
+}