LCOM1920-T02G10

/* Privilege-related definitions. */

#ifndef _MINIX_PRIV_H

#define _MINIX_PRIV_H

#include <minix/com.h>

#include <minix/config.h>

/* Static privilege id definitions. */

#define NR_STATIC_PRIV_IDS         NR_BOOT_PROCS

#define is_static_priv_id(id)           (id >= 0 && id < NR_STATIC_PRIV_IDS)

#define static_priv_id(n)          (NR_TASKS + (n))

/* Unprivileged user processes all share the privilege structure of the

 * user processesess.

 * This id must be fixed because it is used to check send mask entries.

 */

#define USER_PRIV_ID        static_priv_id(ROOT_USR_PROC_NR)

/* Specifies a null privilege id.

 */

#define NULL_PRIV_ID        (-1)

/* Allowed targets. */

#define NO_M      (-1)              /* no targets allowed */

#define ALL_M     (-2)              /* all targets allowed */

/* Allowed calls. */

#define NO_C      (-1)              /* no calls allowed */

#define ALL_C     (-2)              /* all calls allowed */

#define NULL_C    (-3)              /* null call entry */

/*

 * Default privilege settings used in the system

 */

/* privilege flags */

#define IDL_F     (SYS_PROC | BILLABLE) /* idle task is not preemptible as we

                                         * don't want it to interfere with the

                                         * timer tick interrupt handler code.

                                         * Unlike other processes idle task is

                                         * handled in a special way and is

                                         * preempted always if timer tick occurs

                                         * and there is another runnable process

                                         */

#define TSK_F     (SYS_PROC)                       /* other kernel tasks */

#define SRV_F     (SYS_PROC | PREEMPTIBLE)         /* system services */

#define DSRV_F    (SRV_F | DYN_PRIV_ID)            /* dynamic system services */

#define RSYS_F    (SRV_F | ROOT_SYS_PROC)          /* root sys proc */

#define VM_F      (SYS_PROC | VM_SYS_PROC)         /* vm */

#define USR_F     (BILLABLE | PREEMPTIBLE)         /* user processes */

#define IMM_F     (ROOT_SYS_PROC | VM_SYS_PROC | PREEMPTIBLE) /* immutable */

/* init flags */

#define TSK_I     0                               /* all kernel tasks */

#define SRV_I     0                               /* system services */

#define DSRV_I    0                               /* dynamic system services */

#define USR_I     0                               /* user processes */

/* allowed traps */

#define CSK_T     (1 << RECEIVE)                   /* clock and system */

#define TSK_T     0                                /* other kernel tasks */

#define SRV_T     (~0)                             /* system services */

#define DSRV_T    (~0)                             /* dynamic system services */

#define USR_T     (1 << SENDREC)                   /* user processes */

/* allowed targets */

#define TSK_M     NO_M                             /* all kernel tasks */

#define SRV_M     ALL_M                            /* system services */

#define DSRV_M    ALL_M                            /* dynamic system services */

#define USR_M     ALL_M                            /* user processes */

/* allowed kernel calls */

#define TSK_KC    NO_C                             /* all kernel tasks */

#define SRV_KC    ALL_C                            /* dynamic system services */

#define DSRV_KC   ALL_C                            /* default sys proc */

#define USR_KC    NO_C                             /* user processes */

/* allowed vm calls */

#define SRV_VC    ALL_C                            /* dynamic system services */

#define DSRV_VC   ALL_C                            /* default sys proc */

#define USR_VC    ALL_C                            /* user processes */

/* signal manager */

#define SRV_SM    ROOT_SYS_PROC_NR                 /* system services */

#define DSRV_SM   ROOT_SYS_PROC_NR                 /* dynamic system services */

#define USR_SM    PM_PROC_NR                       /* user processes */

/* scheduler */

#define SRV_SCH   KERNEL                           /* system services */

#define DSRV_SCH  SCHED_PROC_NR                    /* dynamic system services */

#define USR_SCH   NONE                             /* user processes */

/* scheduling priority queue. */

#define SRV_Q     USER_Q                           /* system services */

#define DSRV_Q    USER_Q                           /* dynamic system services */

#define USR_Q     USER_Q                           /* user processes */

/* scheduling quantum. */

#define SRV_QT    USER_QUANTUM                     /* system services */

#define DSRV_QT   USER_QUANTUM                     /* dynamic system services */

#define USR_QT    USER_QUANTUM                     /* user processes */

/* default CPU */

#define DSRV_CPU USER_DEFAULT_CPU

#endif /* _MINIX_PRIV_H */