5 files changed, 104 insertions, 1 deletions
diff --git a/sys/include/sys/krq.h b/sys/include/sys/krq.h
new file mode 100644
index 0000000..9cb6ec6
--- /dev/null
+++ b/sys/include/sys/krq.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SYS_KRQ_H_
+#define _SYS_KRQ_H_
+
+#include <sys/syscall.h>
+
+#if defined(_KERNEL)
+scret_t sys_inject(struct syscall_args *scargs);
+#else
+int inject(const char *path);
+#endif  /* _KERNEL */
+#endif  /* !_SYS_KRQ_H_ */
diff --git a/sys/include/sys/syscall.h b/sys/include/sys/syscall.h
index 6d9dae6..08bd989 100644
--- a/sys/include/sys/syscall.h
+++ b/sys/include/sys/syscall.h
@@ -53,6 +53,7 @@
 #define SYS_access  12
 #define SYS_lseek   13
 #define SYS_sleep   14
+#define SYS_inject  15
 
 #if defined(_KERNEL)
 /* Syscall return value and arg type */
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index dfb058a..6b3e09b 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -128,7 +128,6 @@ main(void)
      * and here we go!
      */
     mp_bootstrap_aps(&g_bsp_ci);
-    DRIVERS_SCHED();
     sched_enter();
     __builtin_unreachable();
 }
diff --git a/sys/kern/kern_krq.c b/sys/kern/kern_krq.c
new file mode 100644
index 0000000..c12a98c
--- /dev/null
+++ b/sys/kern/kern_krq.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/syscall.h>
+#include <sys/krq.h>
+#include <sys/errno.h>
+#include <sys/spinlock.h>
+#include <sys/driver.h>
+#include <sys/syslog.h>
+
+static struct spinlock krq_lock = {0};
+
+/*
+ * Load a kernel runtime quantum (KRQ)
+ *
+ * @arg0: path
+ *
+ * XXX: If the 'path' argument is NULL, all deferrable
+ *      drivers are loaded.
+ *
+ * TODO: Handle non-null paths where a completly seperate
+ *       module/krq can be loaded.
+ */
+scret_t
+sys_inject(struct syscall_args *scargs)
+{
+    if (scargs->arg0 != 0) {
+        return -EINVAL;
+    }
+
+    spinlock_acquire(&krq_lock);
+    DRIVERS_SCHED();
+    spinlock_release(&krq_lock);
+    return 0;
+}
diff --git a/sys/kern/kern_syscall.c b/sys/kern/kern_syscall.c
index b1deb7a..292fa56 100644
--- a/sys/kern/kern_syscall.c
+++ b/sys/kern/kern_syscall.c
@@ -35,6 +35,7 @@
 #include <sys/mman.h>
 #include <sys/proc.h>
 #include <sys/vfs.h>
+#include <sys/krq.h>
 
 scret_t(*g_sctab[])(struct syscall_args *) = {
     NULL,       /* SYS_none */
@@ -52,6 +53,7 @@ scret_t(*g_sctab[])(struct syscall_args *) = {
     sys_access, /* SYS_access */
     sys_lseek,  /* SYS_lseek */
     sys_sleep,  /* SYS_sleep */
+    sys_inject, /* SYS_inject */
 };
 
 const size_t MAX_SYSCALLS = NELEM(g_sctab);