ohhhhhhhhhhh (exclude linux-extra-rootfs.img build artifact)

CODE/UTSM/kernel/dsk_loader.c

@@ -176,7 +176,7 @@ static struct limine_file *dsk_find_module(void) {
 
 /* ---- FAT32 block-provider file reader ---- */
 static u8 g_dsk_fat32_disk[131072]; /* 256-sector BPB+FAT+root dir buffer (与 DSK 端一致) */
-static u8 g_dsk_fat32_cluster[4096]; /* 8-sector cluster buffer */
+static u8 g_dsk_fat32_cluster[32768]; /* 32KiB: ESP>=4GiB uses 64 sectors/cluster */
 /* 实机要求: 文件缓冲区足够容纳 deshab.elf (~1.5MB) 及 SYSTEM/lib 下的
  * 大型 DLL（shell32.dll ~8MB, uiautomationcore.dll ~4.3MB） */
 static u8 g_dsk_fat32_filedata[10485760]; /* 10MB file data buffer */

CODE/UTSM/kernel/dsk_loader.d

@@ -1,20 +0,0 @@
-kernel/dsk_loader.o: kernel\dsk_loader.c include\utsm\dsk.h \
-  include\utsm\types.h include\utsm\arena.h include\utsm\dkm.h \
-  include\utsm\dma.h include\utsm\block.h include\utsm\net.h \
-  include\utsm\paging.h include\utsm\log.h include\utsm\pe.h \
-  include\utsm\linux_compat.h include\utsm\instr.h \
-  kernel\..\arch\x86_64\limine.h kernel\..\..\tools\fat32_lfn.h
-include\utsm\dsk.h:
-include\utsm\types.h:
-include\utsm\arena.h:
-include\utsm\dkm.h:
-include\utsm\dma.h:
-include\utsm\block.h:
-include\utsm\net.h:
-include\utsm\paging.h:
-include\utsm\log.h:
-include\utsm\pe.h:
-include\utsm\linux_compat.h:
-include\utsm\instr.h:
-kernel\..\arch\x86_64\limine.h:
-kernel\..\..\tools\fat32_lfn.h:

CODE/UTSM/kernel/ini_parser.c

@@ -95,7 +95,7 @@ int ini_parse(const char *text, u32 size, ini_config *cfg) {
         }
 
         /* key=value 行 */
-        if (cfg->count >= 64) break;  /* 达到上限 */
+        if (cfg->count >= 128) break;  /* 达到上限 */
 
         ini_entry *e = &cfg->entries[cfg->count];
 

CODE/UTSM/kernel/ini_parser.d

@@ -1,4 +0,0 @@
-kernel/ini_parser.o: kernel\ini_parser.c kernel\ini_parser.h \
-  include\utsm\types.h
-kernel\ini_parser.h:
-include\utsm\types.h:

CODE/UTSM/kernel/ini_parser.h

@@ -12,7 +12,7 @@ typedef struct {
 
 /* INI 配置集合（栈/静态分配，不依赖堆） */
 typedef struct {
-    ini_entry entries[64];  /* 最多 64 条配置项 */
+    ini_entry entries[128]; /* 最多 128 条配置项（M4: [sched]/[drr] 加入后 64 不够用） */
     u32 count;
 } ini_config;
 

CODE/UTSM/kernel/instr.d

@@ -1,6 +0,0 @@
-kernel/instr.o: kernel\instr.c include\utsm\instr.h include\utsm\types.h \
-  include\utsm\log.h kernel\ini_parser.h
-include\utsm\instr.h:
-include\utsm\types.h:
-include\utsm\log.h:
-kernel\ini_parser.h:

CODE/UTSM/kernel/log.c

@@ -22,6 +22,10 @@ u32 log_get_length(void) {
 }
 
 static void log_emit(const char *s) {
+    /* Phase7: 日志行临界区——抢占可能把一行日志切成两半（串口与
+     * BOOTLOG 缓冲都会花），pushfq/popfq 保存并恢复本上下文的 IF。 */
+    u64 flags;
+    __asm__ volatile("pushfq; popq %0; cli" : "=r"(flags) :: "memory");
     serial_write(s);
     if (g_log_capture_on && s) {
         while (*s) {
@@ -31,6 +35,13 @@ static void log_emit(const char *s) {
             s++;
         }
     }
+    /* BUG-GP-IRET: 只恢复 IF，不做全量 popfq。全量 popfq 会把进入本
+     * 函数前 flags 里的历史污染位（如 NT=1）原样写回 RFLAGS 并在上下文
+     * 间传播（NT=1 时下一次 iretq 直接 #GP(0)）。本临界区的语义仅仅是
+     * "保存并恢复 IF"。 */
+    if (flags & (1ULL << 9)) {        /* 恢复进入前的 IF */
+        __asm__ volatile("sti" ::: "memory");
+    }
 }
 
 static void log_line(const char *level, const char *msg) {

CODE/UTSM/kernel/main.c

@@ -2,6 +2,7 @@
 #include <utsm/arena.h>
 #include <utsm/utsm.h>
 #include <utsm/drr.h>
+#include <utsm/sched_ext.h>
 #include <utsm/dkm.h>
 #include <utsm/idt.h>
 #include <utsm/dsk.h>
@@ -21,6 +22,7 @@ extern volatile struct limine_module_request g_module_request;
 
 /* dkm/manifest.c: 带 FUCK [drivers] 过滤的 manifest 加载入口 */
 void dsm_load_by_manifest_ex(const ini_config *cfg);
+void dsm_load_named(const ini_config *cfg, const char *name);
 
 /* dsk_loader.c: 按路径读取 FAT32 文件到 g_dsk_fat32_filedata 静态缓冲。
  * Phase 1 已支持 LFN 长文件名 + 子目录遍历。 */
@@ -43,6 +45,7 @@ char g_compat_linux_guest_path[64]  = "/usr/lib/deshab";  /* Linux guest 内库
 int  g_compat_linux_lib_sync        = 1;                  /* 启动时推送 .so 到 Linux guest */
 int  g_compat_pe_dll_search         = 1;                  /* PE 加载时从 FAT32 lib 搜索真实 DLL */
 int  g_compat_vscode_install        = 1;                  /* 启动时安装 VSCode tarball 到 guest /opt */
+int  g_sched_enabled_cfg            = 1;                  /* FUCK [sched] enable */
 
 /* 将 FUCK [compat] 区的配置应用到兼容层全局变量。
  * 必须在 utsm_apply_config 之后调用。 */
@@ -346,6 +349,24 @@ void kernel_main(void) {
     INSTR_TS_END(ts_utsm, "utsm_init");
     log_info("[UTSM] init ok");
 
+    /* === SAS-R0-PCQ 调度器：bootstrap 任务绑定（Phase 7） ===
+     * 只做 sched_init + cpu_init + bootstrap TCB（绑定当前 rsp），
+     * 不开中断、不碰定时器，对既有启动行为零影响。
+     * 抢占在 selftest 之后、demo 窗口内才启用。 */
+    {
+        u32 s_tick_hz  = (u32)ini_get_int(cfg, "sched", "tick_hz", 100);
+        u32 s_slice_ms = (u32)ini_get_int(cfg, "sched", "timeslice_ms", 10);
+        u32 s_demo_ms  = (u32)ini_get_int(cfg, "sched", "demo_ms", 1000);
+        int s_demo_fault = ini_get_bool(cfg, "sched", "demo_fault", 0);
+        g_sched_enabled_cfg = ini_get_bool(cfg, "sched", "enable", 1);
+        utsm_sched_config(s_tick_hz, s_slice_ms, s_demo_ms, s_demo_fault);
+        log_hex64("[SCHED] cfg enable=", (u64)g_sched_enabled_cfg);
+        log_hex64("[SCHED] cfg demo_ms=", s_demo_ms);
+        if (utsm_sched_bootstrap_init() < 0) {
+            log_warn("[UTSM] scheduler bootstrap failed (non-fatal)");
+        }
+    }
+
     INSTR_TS_DECL(ts_dkm);
     INSTR_TS_BEGIN(ts_dkm);
     dkm_init();
@@ -371,6 +392,12 @@ void kernel_main(void) {
             INSTR_TS_END(ts_vmm, "vmm_init+selftest");
             log_info("[UTSM] VMM self-test PASS");
 
+            /* Only pci+ahci before linux_launch. Loading apic/stage0 first
+             * left the guest in an IDTR=0 VM-exit storm. Remaining DKM
+             * still loads after the guest parks. */
+            dsm_load_named(cfg, "pci");
+            dsm_load_named(cfg, "ahci");
+
             /* === Linux guest — 可通过 FUCK [boot] linux_guest=0 跳过 === */
             int run_linux = ini_get_bool(cfg, "boot", "linux_guest", 1);
             if (run_linux && linux_loader_init() == 0) {
@@ -462,6 +489,14 @@ void kernel_main(void) {
         log_info("[UTSM] selftest skipped by FUCK config");
     }
 
+    /* === SAS-R0-PCQ 调度器：demo 任务 + LAPIC tick 抢占启用（Phase 7） ===
+     * 此刻 DKM 全部驱动加载完毕（timer.drv 的 PIT 校准已完成且此后无人
+     * 再用 PIT）、VMM/Linux/XJ380 guest 已 park/terminate —— LAPIC timer
+     * 接管 tick 源。demo 窗口内 bootstrap 被周期抢占，demo 任务交错运行。 */
+    if (g_sched_enabled_cfg) {
+        utsm_sched_demo_window();
+    }
+
     /* ---- 插桩: DSK 加载跳转前记录 ---- */
     INSTR_PROBE(DSK0, 0, 0, 0, 0);
 
@@ -476,10 +511,15 @@ void kernel_main(void) {
     {
         int disk_log = ini_get_bool(cfg, "boot", "disk_log", 0);
         if (disk_log) {
-            disk_log_flush();
+        disk_log_flush();
         }
     }
 
+    /* === 调度器静默（Phase 7/8 收尾） ===
+     * 停 LAPIC timer、注销 tick/异常 handler、杀 demo 任务——保证
+     * dsk_load_and_jump 的 DSK 交接路径与无调度器时逐字节一致。 */
+    utsm_sched_quiesce();
+
     if (dsk_load_and_jump() != 0) {
         log_error("[UTSM] DSK jump failed");
     }
@@ -487,5 +527,5 @@ void kernel_main(void) {
     /* ---- 插桩: 启动总耗时（仅在 DSK 跳转失败时可见） ---- */
     INSTR_TS_END(boot_total, "boot_total");
 
-    arch_halt_forever();
+    arch_halt_forever();/*I LOVE YOU*/
 }

CODE/UTSM/kernel/main.d

@@ -4,11 +4,11 @@ kernel/main.o: kernel\main.c include\utsm\log.h include\utsm\types.h \
   include\utsm\capability.h include\utsm\segment.h include\utsm\dirty.h \
   include\utsm\utrw.h include\utsm\vmm.h include\utsm\linux_loader.h \
   include\utsm\ipc_shm.h ..\utsm-ipc\ipc_proto.h \
-  include\utsm\hypercall.h include\utsm\drr.h include\utsm\dkm.h \
-  include\utsm\dma.h include\utsm\block.h include\utsm\net.h \
-  include\utsm\paging.h include\utsm\idt.h include\utsm\dsk.h \
-  include\utsm\linux_compat.h include\utsm\xj380_loader.h \
-  include\utsm\instr.h kernel\ini_parser.h \
+  include\utsm\hypercall.h include\utsm\drr.h include\utsm\sched_ext.h \
+  include\utsm\sched.h include\utsm\dkm.h include\utsm\dma.h \
+  include\utsm\block.h include\utsm\net.h include\utsm\paging.h \
+  include\utsm\idt.h include\utsm\dsk.h include\utsm\linux_compat.h \
+  include\utsm\xj380_loader.h include\utsm\instr.h kernel\ini_parser.h \
   kernel\..\arch\x86_64\limine.h kernel\..\pe\pe_dll_manager.h
 include\utsm\log.h:
 include\utsm\types.h:
@@ -28,6 +28,8 @@ include\utsm\ipc_shm.h:
 ..\utsm-ipc\ipc_proto.h:
 include\utsm\hypercall.h:
 include\utsm\drr.h:
+include\utsm\sched_ext.h:
+include\utsm\sched.h:
 include\utsm\dkm.h:
 include\utsm\dma.h:
 include\utsm\block.h:

CODE/UTSM/kernel/net.d

@@ -1,5 +0,0 @@
-kernel/net.o: kernel\net.c include\utsm\net.h include\utsm\types.h \
-  include\utsm\log.h
-include\utsm\net.h:
-include\utsm\types.h:
-include\utsm\log.h:

CODE/UTSM/kernel/panic.d

@@ -1,3 +0,0 @@
-kernel/panic.o: kernel\panic.c include\utsm\log.h include\utsm\types.h
-include\utsm\log.h:
-include\utsm\types.h:

CODE/UTSM/kernel/probe.d

@@ -1,7 +0,0 @@
-kernel/probe.o: kernel\probe.c include\utsm\instr.h include\utsm\types.h \
-  include\utsm\log.h include\utsm\arena.h kernel\ini_parser.h
-include\utsm\instr.h:
-include\utsm\types.h:
-include\utsm\log.h:
-include\utsm\arena.h:
-kernel\ini_parser.h: