xnu-201.tar.gz

[apple/xnu.git] / osfmk / ppc / thread_act.h

diff --git a/osfmk/ppc/thread_act.h b/osfmk/ppc/thread_act.h
index 30bf02c8e7158839861f33b11d573203022be9f1..09e3097c5e707c6d069dfd459becd6540e92a889 100644 (file)
--- a/osfmk/ppc/thread_act.h
+++ b/osfmk/ppc/thread_act.h
@@ -34,15 +34,11 @@
 #include <kern/lock.h>
 #include <kern/clock.h>
 
-
 /*
  * Kernel state structure
  *
  * This holds the kernel state that is saved and restored across context
- * switches. This is kept at the top of the kernel stack.
- *
- * XXX Some state is saved only because it is not saved on entry to the
- * kernel from user mode. This needs to be straightened out.
+ * switches. 
  */
 
 /*
@@ -93,12 +89,12 @@ typedef struct MachineThrAct {
        unsigned int    VMX_cpu;                /* The last processor to enable vector */
        struct vmmCntrlEntry *vmmCEntry;        /* Pointer current emulation context or 0 */
        struct vmmCntrlTable *vmmControl;       /* Pointer to virtual machine monitor control table */
-       AbsoluteTime    qactTimer;              /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */
+       uint64_t                qactTimer;              /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */
        unsigned int    ksp;                    /* points to TOP OF STACK or zero */
        unsigned int    bbDescAddr;             /* Points to Blue Box Trap descriptor area in kernel (page aligned) */
        unsigned int    bbUserDA;               /* Points to Blue Box Trap descriptor area in user (page aligned) */
        unsigned int    bbTableStart;   /* Points to Blue Box Trap dispatch area in user */
-       unsigned int    bbPendRupt;             /* Number of pending Blue Box interruptions */
+       unsigned int    emPendRupts;    /* Number of pending emulated interruptions */
        unsigned int    bbTaskID;               /* Opaque task ID for Blue Box threads */
        unsigned int    bbTaskEnv;              /* Opaque task data reference for Blue Box threads */
        unsigned int    specFlags;              /* Special flags */
@@ -108,20 +104,31 @@ typedef struct MachineThrAct {
 #define ignoreZeroFaultbit             0
 #define floatUsedbit                   1
 #define vectorUsedbit                  2
-#define bbNoMachSCbit                  3
 #define runningVMbit                   4
 #define floatCngbit                            5
 #define vectorCngbit                   6
 #define timerPopbit                            7
+#define userProtKeybit                 8
+/*     NOTE: Do not move or assign bit 31 without changing exception vector ultra fast path code */
+#define bbThreadbit                            28
+#define bbNoMachSCbit                  29
+#define bbPreemptivebit                        30
+#define spfReserved1                   31      /* See note above */
 
 #define ignoreZeroFault                (1<<(31-ignoreZeroFaultbit))
 #define floatUsed                      (1<<(31-floatUsedbit))
 #define vectorUsed                     (1<<(31-vectorUsedbit))
-#define bbNoMachSC                     (1<<(31-bbNoMachSCbit))
 #define runningVM                      (1<<(31-runningVMbit))
 #define floatCng                       (1<<(31-floatCngbit))
 #define vectorCng                      (1<<(31-vectorCngbit))
 #define timerPop                       (1<<(31-timerPopbit))
+#define userProtKey                    (1<<(31-userProtKeybit))
+#define bbThread                       (1<<(31-bbThreadbit))
+#define bbNoMachSC                     (1<<(31-bbNoMachSCbit))
+#define bbPreemptive           (1<<(31-bbPreemptivebit))
+
+#define fvChkb 0
+#define fvChk 0x80000000
 
 #ifdef MACH_BSD
        unsigned long   cthread_self;   /* for use of cthread package */
@@ -132,4 +139,8 @@ typedef struct MachineThrAct {
 extern struct ppc_saved_state * find_user_regs(thread_act_t act);
 extern struct ppc_float_state * find_user_fpu(thread_act_t act);
 
+extern void *act_thread_csave(void);
+extern void act_thread_catt(void *ctx);
+extern void act_thread_cfree(void *ctx);
+
 #endif /* _PPC_THREAD_ACT_H_ */