Changeset 738ad2e in mainline for generic

Timestamp:

2006-05-02T18:19:43Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

281224a

Parents:

e34a141

Message:

Changed interrupt_control to preemption_control.

Location:

generic

Files:

• include/ddi/ddi.h (modified) (1 diff)
• include/security/cap.h (modified) (1 diff)
• include/syscall/syscall.h (modified) (1 diff)
• src/ddi/ddi.c (modified) (1 diff)
• src/syscall/syscall.c (modified) (2 diffs)

generic/include/ddi/ddi.h

@@ -40 +40 @@
  * Interface to be implemented by all architectures.
  */
-extern __native ddi_int_control_arch(__native enable, __native *flags);
-extern __native ddi_int_control(__native enable, __native *flags);
 extern int ddi_iospace_enable_arch(task_t *task, __address ioaddr, size_t size);
 

generic/include/security/cap.h

@@ -64 +64 @@
 
 /**
- * CAP_INT_CONTROL allows its holder to disable interrupts
+ * CAP_PREEMPT_CONTROL allows its holder to disable interrupts
  */
-#define CAP_INT_CONTROL         (1<<3)
+#define CAP_PREEMPT_CONTROL         (1<<3)
 
 typedef __u32 cap_t;

generic/include/syscall/syscall.h

@@ -33 +33 @@
         SYS_IO = 0,
         SYS_TLS_SET = 1, /* Hardcoded in AMD64,IA32 uspace - psthread.S */
-        SYS_INT_CONTROL = 2, /* Hardcoded in all SYSCALL handlers */
+        SYS_PREEMPT_CONTROL,
         SYS_THREAD_CREATE,
         SYS_THREAD_EXIT,

generic/src/ddi/ddi.c

@@ -204 +204 @@
         return (__native) ddi_iospace_enable((task_id_t) arg.task_id, (__address) arg.ioaddr, (size_t) arg.size);
 }
-
-__native ddi_int_control(__native enable, __native *flags)
-{
-        if (! cap_get(TASK) & CAP_INT_CONTROL)
-                return EPERM;
-        return ddi_int_control_arch(enable, flags);
-}

generic/src/syscall/syscall.c

@@ -57 +57 @@
 }
 
-static __native sys_int_control(int enable)
+static __native sys_preempt_control(int enable)
 {
-        panic("Not implemented.");
+        if (! cap_get(TASK) & CAP_PREEMPT_CONTROL)
+                return EPERM;
+        if (enable)
+                preemption_enable();
+        else
+                preemption_disable();
+        return 0;
 }
 
@@ -75 +81 @@
         sys_io,
         sys_tls_set,
-        sys_int_control,
+        sys_preempt_control,
 
         /* Thread and task related syscalls. */