17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5381a2a9aSdr146992 * Common Development and Distribution License (the "License"). 6381a2a9aSdr146992 * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*5679c89fSjv227347 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #include <sys/types.h> 277c478bd9Sstevel@tonic-gate #include <sys/time.h> 287c478bd9Sstevel@tonic-gate #include <sys/param.h> 297c478bd9Sstevel@tonic-gate #include <sys/systm.h> 307c478bd9Sstevel@tonic-gate #include <sys/signal.h> 317c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 327c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 337c478bd9Sstevel@tonic-gate #include <sys/user.h> 347c478bd9Sstevel@tonic-gate #include <sys/proc.h> 357c478bd9Sstevel@tonic-gate #include <sys/task.h> 367c478bd9Sstevel@tonic-gate #include <sys/project.h> 377c478bd9Sstevel@tonic-gate #include <sys/klwp.h> 387c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 397c478bd9Sstevel@tonic-gate #include <sys/file.h> 407c478bd9Sstevel@tonic-gate #include <sys/fcntl.h> 417c478bd9Sstevel@tonic-gate #include <sys/flock.h> 427c478bd9Sstevel@tonic-gate #include <sys/var.h> 437c478bd9Sstevel@tonic-gate #include <sys/stream.h> 447c478bd9Sstevel@tonic-gate #include <sys/strsubr.h> 457c478bd9Sstevel@tonic-gate #include <sys/conf.h> 467c478bd9Sstevel@tonic-gate #include <sys/class.h> 477c478bd9Sstevel@tonic-gate #include <sys/ts.h> 487c478bd9Sstevel@tonic-gate #include <sys/rt.h> 497c478bd9Sstevel@tonic-gate #include <sys/exec.h> 507c478bd9Sstevel@tonic-gate #include <sys/exechdr.h> 517c478bd9Sstevel@tonic-gate #include <sys/buf.h> 527c478bd9Sstevel@tonic-gate #include <sys/resource.h> 537c478bd9Sstevel@tonic-gate #include <vm/seg.h> 547c478bd9Sstevel@tonic-gate #include <vm/pvn.h> 557c478bd9Sstevel@tonic-gate #include <vm/seg_kmem.h> 567c478bd9Sstevel@tonic-gate #include <sys/vmparam.h> 577c478bd9Sstevel@tonic-gate #include <sys/machparam.h> 587c478bd9Sstevel@tonic-gate #include <sys/utsname.h> 597c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 607c478bd9Sstevel@tonic-gate #include <sys/stack.h> 617c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 627c478bd9Sstevel@tonic-gate #include <sys/fdbuffer.h> 637c478bd9Sstevel@tonic-gate #include <sys/cyclic_impl.h> 647c478bd9Sstevel@tonic-gate #include <sys/disp.h> 657c478bd9Sstevel@tonic-gate #include <sys/tuneable.h> 66*5679c89fSjv227347 #include <sys/systeminfo.h> 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate #include <sys/vmem.h> 697c478bd9Sstevel@tonic-gate #include <sys/clock.h> 707c478bd9Sstevel@tonic-gate #include <sys/serializer.h> 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate /* 737c478bd9Sstevel@tonic-gate * The following few lines describe generic things that must be compiled 747c478bd9Sstevel@tonic-gate * into the booted executable (unix) rather than genunix or any other 757c478bd9Sstevel@tonic-gate * module because they're required by crash dump readers, etc. 767c478bd9Sstevel@tonic-gate */ 777c478bd9Sstevel@tonic-gate struct modctl modules; /* head of linked list of modules */ 787c478bd9Sstevel@tonic-gate char *default_path; /* default module loading path */ 797c478bd9Sstevel@tonic-gate struct swapinfo *swapinfo; /* protected by the swapinfo_lock */ 807c478bd9Sstevel@tonic-gate proc_t *practive; /* active process list */ 817c478bd9Sstevel@tonic-gate uint_t nproc; /* current number of processes */ 827c478bd9Sstevel@tonic-gate proc_t p0; /* process 0 */ 837c478bd9Sstevel@tonic-gate struct plock p0lock; /* p0's p_lock */ 847c478bd9Sstevel@tonic-gate klwp_t lwp0; /* t0's lwp */ 857c478bd9Sstevel@tonic-gate task_t *task0p; /* task 0 */ 867c478bd9Sstevel@tonic-gate kproject_t *proj0p; /* location of project 0 */ 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate /* 897c478bd9Sstevel@tonic-gate * The following are "implementation architecture" dependent constants made 907c478bd9Sstevel@tonic-gate * available here in the form of initialized data for use by "implementation 917c478bd9Sstevel@tonic-gate * architecture" independent modules. See machparam.h. 927c478bd9Sstevel@tonic-gate */ 937c478bd9Sstevel@tonic-gate const unsigned long _pagesize = (unsigned long)PAGESIZE; 947c478bd9Sstevel@tonic-gate const unsigned int _pageshift = (unsigned int)PAGESHIFT; 957c478bd9Sstevel@tonic-gate const unsigned long _pageoffset = (unsigned long)PAGEOFFSET; 967c478bd9Sstevel@tonic-gate /* 977c478bd9Sstevel@tonic-gate * XXX - This value pagemask has to be a 64bit size because 987c478bd9Sstevel@tonic-gate * large file support uses this mask on offsets which are 64 bit size. 997c478bd9Sstevel@tonic-gate * using unsigned leaves the higher 32 bits value as zero thus 1007c478bd9Sstevel@tonic-gate * corrupting offset calculations in the file system and VM. 1017c478bd9Sstevel@tonic-gate */ 1027c478bd9Sstevel@tonic-gate const u_longlong_t _pagemask = (u_longlong_t)PAGEMASK; 1037c478bd9Sstevel@tonic-gate const unsigned long _mmu_pagesize = (unsigned long)MMU_PAGESIZE; 1047c478bd9Sstevel@tonic-gate const unsigned int _mmu_pageshift = (unsigned int)MMU_PAGESHIFT; 1057c478bd9Sstevel@tonic-gate const unsigned long _mmu_pageoffset = (unsigned long)MMU_PAGEOFFSET; 1067c478bd9Sstevel@tonic-gate const unsigned long _mmu_pagemask = (unsigned long)MMU_PAGEMASK; 1077c478bd9Sstevel@tonic-gate uintptr_t _kernelbase = (uintptr_t)KERNELBASE; 1087c478bd9Sstevel@tonic-gate uintptr_t _userlimit = (uintptr_t)USERLIMIT; 1097c478bd9Sstevel@tonic-gate uintptr_t _userlimit32 = (uintptr_t)USERLIMIT32; 1107c478bd9Sstevel@tonic-gate const uintptr_t _argsbase = (uintptr_t)ARGSBASE; 1117c478bd9Sstevel@tonic-gate const unsigned int _diskrpm = (unsigned int)DISKRPM; 1127c478bd9Sstevel@tonic-gate const unsigned long _pgthresh = (unsigned long)PGTHRESH; 1137c478bd9Sstevel@tonic-gate const unsigned int _maxslp = (unsigned int)MAXSLP; 1147c478bd9Sstevel@tonic-gate const unsigned long _maxhandspreadpages = (unsigned long)MAXHANDSPREADPAGES; 1157c478bd9Sstevel@tonic-gate const int _ncpu = (int)NCPU; 1167c478bd9Sstevel@tonic-gate const unsigned long _defaultstksz = (unsigned long)DEFAULTSTKSZ; 1177c478bd9Sstevel@tonic-gate const unsigned int _nbpg = (unsigned int)MMU_PAGESIZE; 1187c478bd9Sstevel@tonic-gate 1197c478bd9Sstevel@tonic-gate /* 1207c478bd9Sstevel@tonic-gate * System parameter formulae. 1217c478bd9Sstevel@tonic-gate * 1227c478bd9Sstevel@tonic-gate * This file is copied into each directory where we compile 1237c478bd9Sstevel@tonic-gate * the kernel; it should be modified there to suit local taste 1247c478bd9Sstevel@tonic-gate * if necessary. 1257c478bd9Sstevel@tonic-gate */ 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate /* 1287c478bd9Sstevel@tonic-gate * Default hz is 100, but if we set hires_tick we get higher resolution 1297c478bd9Sstevel@tonic-gate * clock behavior (currently defined to be 1000 hz). Higher values seem 1307c478bd9Sstevel@tonic-gate * to work, but are not supported. 1317c478bd9Sstevel@tonic-gate * 1327c478bd9Sstevel@tonic-gate * If we do decide to play with higher values, remember that hz should 1337c478bd9Sstevel@tonic-gate * satisfy the following constraints to avoid integer round-off problems: 1347c478bd9Sstevel@tonic-gate * 1357c478bd9Sstevel@tonic-gate * (1) hz should be in the range 100 <= hz <= MICROSEC. If hz exceeds 1367c478bd9Sstevel@tonic-gate * MICROSEC, usec_per_tick will be zero and lots of stuff will break. 1377c478bd9Sstevel@tonic-gate * Similarly, if hz < 100 then hz / 100 == 0 and stuff will break. 1387c478bd9Sstevel@tonic-gate * 1397c478bd9Sstevel@tonic-gate * (2) If hz <= 1000, it should be both a multiple of 100 and a 1407c478bd9Sstevel@tonic-gate * divisor of 1000. 1417c478bd9Sstevel@tonic-gate * 1427c478bd9Sstevel@tonic-gate * (3) If hz > 1000, it should be both a multiple of 1000 and a 1437c478bd9Sstevel@tonic-gate * divisor of MICROSEC. 1447c478bd9Sstevel@tonic-gate * 1457c478bd9Sstevel@tonic-gate * Thus the only reasonable values of hz (i.e. the values that won't 1467c478bd9Sstevel@tonic-gate * cause roundoff error) are: 100, 200, 500, 1000, 2000, 4000, 5000, 1477c478bd9Sstevel@tonic-gate * 8000, 10000, 20000, 25000, 40000, 50000, 100000, 125000, 200000, 1487c478bd9Sstevel@tonic-gate * 250000, 500000, 1000000. As of this writing (1996) a clock rate 1497c478bd9Sstevel@tonic-gate * of more than about 10 kHz seems utterly ridiculous, although 1507c478bd9Sstevel@tonic-gate * this observation will no doubt seem quaintly amusing one day. 1517c478bd9Sstevel@tonic-gate */ 1527c478bd9Sstevel@tonic-gate int hz = 100; 1537c478bd9Sstevel@tonic-gate int hires_hz = 1000; 1547c478bd9Sstevel@tonic-gate int hires_tick = 0; 1557c478bd9Sstevel@tonic-gate int cpu_decay_factor = 10; /* this is no longer tied to clock */ 1567c478bd9Sstevel@tonic-gate int tick_per_msec; /* clock ticks per millisecond (zero if hz < 1000) */ 1577c478bd9Sstevel@tonic-gate int msec_per_tick; /* millseconds per clock tick (zero if hz > 1000) */ 1587c478bd9Sstevel@tonic-gate int usec_per_tick; /* microseconds per clock tick */ 1597c478bd9Sstevel@tonic-gate int nsec_per_tick; /* nanoseconds per clock tick */ 1607c478bd9Sstevel@tonic-gate int max_hres_adj; /* maximum adjustment of hrtime per tick */ 1617c478bd9Sstevel@tonic-gate 1627c478bd9Sstevel@tonic-gate /* 1637c478bd9Sstevel@tonic-gate * Setting "snooping" to a non-zero value will cause a deadman panic if 1647c478bd9Sstevel@tonic-gate * snoop_interval microseconds elapse without lbolt increasing. The default 1657c478bd9Sstevel@tonic-gate * snoop_interval is 50 seconds. 1667c478bd9Sstevel@tonic-gate */ 1677c478bd9Sstevel@tonic-gate #define SNOOP_INTERVAL_MIN (MICROSEC) 1687c478bd9Sstevel@tonic-gate #define SNOOP_INTERVAL_DEFAULT (50 * MICROSEC) 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate int snooping = 0; 1717c478bd9Sstevel@tonic-gate uint_t snoop_interval = SNOOP_INTERVAL_DEFAULT; 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate /* 1747c478bd9Sstevel@tonic-gate * Tables of initialization functions, called from main(). 1757c478bd9Sstevel@tonic-gate */ 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate extern void system_taskq_init(void); 1787c478bd9Sstevel@tonic-gate extern void binit(void); 1797c478bd9Sstevel@tonic-gate extern void space_init(void); 1807c478bd9Sstevel@tonic-gate extern void dnlc_init(void); 1817c478bd9Sstevel@tonic-gate extern void vfsinit(void); 1827c478bd9Sstevel@tonic-gate extern void finit(void); 1837c478bd9Sstevel@tonic-gate extern void strinit(void); 1847c478bd9Sstevel@tonic-gate extern void flk_init(void); 1857c478bd9Sstevel@tonic-gate extern void ftrace_init(void); 1867c478bd9Sstevel@tonic-gate extern void softcall_init(void); 1877c478bd9Sstevel@tonic-gate extern void ttyinit(void); 1887c478bd9Sstevel@tonic-gate extern void schedctl_init(void); 1897c478bd9Sstevel@tonic-gate extern void deadman_init(void); 1907c478bd9Sstevel@tonic-gate extern void clock_timer_init(void); 1917c478bd9Sstevel@tonic-gate extern void clock_realtime_init(void); 1927c478bd9Sstevel@tonic-gate extern void clock_highres_init(void); 193fb2f18f8Sesaxe extern void pg_init(void); 194fb2f18f8Sesaxe extern void pg_cmt_class_init(void); 195fb2f18f8Sesaxe extern void pg_cpu0_init(void); 1962850d85bSmv143129 extern void clock_tick_mp_init(void); 19787a18d3fSMadhavan Venkataraman extern void callout_mp_init(void); 1986890d023SEric Saxe extern void cpu_seq_tbl_init(void); 1997c478bd9Sstevel@tonic-gate 2007c478bd9Sstevel@tonic-gate void (*init_tbl[])(void) = { 2017c478bd9Sstevel@tonic-gate system_taskq_init, 2027c478bd9Sstevel@tonic-gate binit, 2037c478bd9Sstevel@tonic-gate space_init, 2047c478bd9Sstevel@tonic-gate dnlc_init, 2057c478bd9Sstevel@tonic-gate vfsinit, 2067c478bd9Sstevel@tonic-gate finit, 2077c478bd9Sstevel@tonic-gate strinit, 2087c478bd9Sstevel@tonic-gate serializer_init, 2097c478bd9Sstevel@tonic-gate softcall_init, 2107c478bd9Sstevel@tonic-gate ttyinit, 2117c478bd9Sstevel@tonic-gate as_init, 2127c478bd9Sstevel@tonic-gate pvn_init, 2137c478bd9Sstevel@tonic-gate anon_init, 2147c478bd9Sstevel@tonic-gate segvn_init, 2157c478bd9Sstevel@tonic-gate flk_init, 2166890d023SEric Saxe cpu_seq_tbl_init, 217fb2f18f8Sesaxe pg_init, 218fb2f18f8Sesaxe pg_cmt_class_init, 219fb2f18f8Sesaxe pg_cpu0_init, 2207c478bd9Sstevel@tonic-gate schedctl_init, 2217c478bd9Sstevel@tonic-gate fdb_init, 2227c478bd9Sstevel@tonic-gate deadman_init, 2237c478bd9Sstevel@tonic-gate clock_timer_init, 2247c478bd9Sstevel@tonic-gate clock_realtime_init, 2257c478bd9Sstevel@tonic-gate clock_highres_init, 2267c478bd9Sstevel@tonic-gate 0 2277c478bd9Sstevel@tonic-gate }; 2287c478bd9Sstevel@tonic-gate 2297c478bd9Sstevel@tonic-gate 2303aedfe0bSmishra #if defined(__sparc) 2313aedfe0bSmishra extern void siron_mp_init(); 2323aedfe0bSmishra #endif 2333aedfe0bSmishra 2347c478bd9Sstevel@tonic-gate /* 2357c478bd9Sstevel@tonic-gate * Any per cpu resources should be initialized via 2367c478bd9Sstevel@tonic-gate * an entry in mp_init_tbl(). 2377c478bd9Sstevel@tonic-gate */ 2387c478bd9Sstevel@tonic-gate void (*mp_init_tbl[])(void) = { 2397c478bd9Sstevel@tonic-gate ftrace_init, 2407c478bd9Sstevel@tonic-gate cyclic_mp_init, 2413aedfe0bSmishra #if defined(__sparc) 2423aedfe0bSmishra siron_mp_init, 2433aedfe0bSmishra #endif 2442850d85bSmv143129 clock_tick_mp_init, 24587a18d3fSMadhavan Venkataraman callout_mp_init, 2467c478bd9Sstevel@tonic-gate 0 2477c478bd9Sstevel@tonic-gate }; 2487c478bd9Sstevel@tonic-gate 2497c478bd9Sstevel@tonic-gate int maxusers; /* kitchen-sink knob for dynamic configuration */ 2507c478bd9Sstevel@tonic-gate 2517c478bd9Sstevel@tonic-gate /* 2527c478bd9Sstevel@tonic-gate * pidmax -- highest pid value assigned by the system 2537c478bd9Sstevel@tonic-gate * Settable in /etc/system 2547c478bd9Sstevel@tonic-gate */ 2557c478bd9Sstevel@tonic-gate int pidmax = DEFAULT_MAXPID; 2567c478bd9Sstevel@tonic-gate 2577c478bd9Sstevel@tonic-gate /* 2587c478bd9Sstevel@tonic-gate * jump_pid - if set, this value is where pid numbers should start 2597c478bd9Sstevel@tonic-gate * after the first few system pids (0-3) are used. If 0, pids are 2607c478bd9Sstevel@tonic-gate * chosen in the usual way. This variable can be used to quickly 2617c478bd9Sstevel@tonic-gate * create large pids (by setting it to 100000, for example). pids 2627c478bd9Sstevel@tonic-gate * less than this value will never be chosen. 2637c478bd9Sstevel@tonic-gate */ 2647c478bd9Sstevel@tonic-gate pid_t jump_pid = DEFAULT_JUMPPID; 2657c478bd9Sstevel@tonic-gate 2667c478bd9Sstevel@tonic-gate /* 2677c478bd9Sstevel@tonic-gate * autoup -- used in struct var for dynamic config of the age a delayed-write 2687c478bd9Sstevel@tonic-gate * buffer must be in seconds before bdflush will write it out. 2697c478bd9Sstevel@tonic-gate */ 2707c478bd9Sstevel@tonic-gate #define DEFAULT_AUTOUP 30 2717c478bd9Sstevel@tonic-gate int autoup = DEFAULT_AUTOUP; 2727c478bd9Sstevel@tonic-gate 2737c478bd9Sstevel@tonic-gate /* 2747c478bd9Sstevel@tonic-gate * bufhwm -- tuneable variable for struct var for v_bufhwm. 2757c478bd9Sstevel@tonic-gate * high water mark for buffer cache mem usage in units of K bytes. 2767c478bd9Sstevel@tonic-gate * 2777c478bd9Sstevel@tonic-gate * bufhwm_pct -- ditto, but given in % of physmem. 2787c478bd9Sstevel@tonic-gate */ 2797c478bd9Sstevel@tonic-gate int bufhwm = 0; 2807c478bd9Sstevel@tonic-gate int bufhwm_pct = 0; 2817c478bd9Sstevel@tonic-gate 2827c478bd9Sstevel@tonic-gate /* 2837c478bd9Sstevel@tonic-gate * Process table. 2847c478bd9Sstevel@tonic-gate */ 2857c478bd9Sstevel@tonic-gate int maxpid; 2867c478bd9Sstevel@tonic-gate int max_nprocs; /* set in param_init() */ 2877c478bd9Sstevel@tonic-gate int maxuprc; /* set in param_init() */ 2887c478bd9Sstevel@tonic-gate int reserved_procs; 2897c478bd9Sstevel@tonic-gate int nthread = 1; 2907c478bd9Sstevel@tonic-gate 2917c478bd9Sstevel@tonic-gate /* 2927c478bd9Sstevel@tonic-gate * UFS tunables 2937c478bd9Sstevel@tonic-gate */ 2947c478bd9Sstevel@tonic-gate int ufs_ninode; /* declared here due to backwards compatibility */ 2957c478bd9Sstevel@tonic-gate int ndquot; /* declared here due to backwards compatibility */ 2967c478bd9Sstevel@tonic-gate 2977c478bd9Sstevel@tonic-gate /* 2987c478bd9Sstevel@tonic-gate * Exec switch table. This is used by the generic exec module 2997c478bd9Sstevel@tonic-gate * to switch out to the desired executable type, based on the 3007c478bd9Sstevel@tonic-gate * magic number. The currently supported types are ELF, a.out 3017c478bd9Sstevel@tonic-gate * (both NMAGIC and ZMAGIC), interpreter (#!) files, 3027c478bd9Sstevel@tonic-gate * and Java executables. 3037c478bd9Sstevel@tonic-gate */ 3047c478bd9Sstevel@tonic-gate /* 3057c478bd9Sstevel@tonic-gate * Magic numbers 3067c478bd9Sstevel@tonic-gate */ 3077c478bd9Sstevel@tonic-gate short elfmagic = 0x7f45; 3087c478bd9Sstevel@tonic-gate short intpmagic = 0x2321; 3097c478bd9Sstevel@tonic-gate short jmagic = 0x504b; 3107c478bd9Sstevel@tonic-gate 3117c478bd9Sstevel@tonic-gate #if defined(__sparc) 3127c478bd9Sstevel@tonic-gate short aout_nmagic = NMAGIC; 3137c478bd9Sstevel@tonic-gate short aout_zmagic = ZMAGIC; 3147c478bd9Sstevel@tonic-gate short aout_omagic = OMAGIC; 3157c478bd9Sstevel@tonic-gate #endif 3167c478bd9Sstevel@tonic-gate short nomagic = 0; 3177c478bd9Sstevel@tonic-gate 3187c478bd9Sstevel@tonic-gate /* 3197c478bd9Sstevel@tonic-gate * Magic strings 3207c478bd9Sstevel@tonic-gate */ 3217c478bd9Sstevel@tonic-gate #define ELF32MAGIC_STRING "\x7f""ELF\x1" 3227c478bd9Sstevel@tonic-gate #define ELF64MAGIC_STRING "\x7f""ELF\x2" 3237c478bd9Sstevel@tonic-gate #define INTPMAGIC_STRING "#!" 3247c478bd9Sstevel@tonic-gate #define JAVAMAGIC_STRING "PK\003\004" 3257c478bd9Sstevel@tonic-gate #define AOUT_OMAGIC_STRING "\x1""\x07" /* 0407 */ 3267c478bd9Sstevel@tonic-gate #define AOUT_NMAGIC_STRING "\x1""\x08" /* 0410 */ 3277c478bd9Sstevel@tonic-gate #define AOUT_ZMAGIC_STRING "\x1""\x0b" /* 0413 */ 3287c478bd9Sstevel@tonic-gate #define NOMAGIC_STRING "" 3297c478bd9Sstevel@tonic-gate 3307c2fbfb3SApril Chin #define SHBIN_CNTL(x) ((x)&037) 3317c2fbfb3SApril Chin #define SHBINMAGIC_STRING {SHBIN_CNTL('k'), SHBIN_CNTL('s'), SHBIN_CNTL('h'), 0} 3327c2fbfb3SApril Chin #define SHBINMAGIC_LEN 4 3337c2fbfb3SApril Chin 3347c478bd9Sstevel@tonic-gate char elf32magicstr[] = ELF32MAGIC_STRING; 3357c478bd9Sstevel@tonic-gate char elf64magicstr[] = ELF64MAGIC_STRING; 3367c478bd9Sstevel@tonic-gate char intpmagicstr[] = INTPMAGIC_STRING; 3377c2fbfb3SApril Chin char shbinmagicstr[] = SHBINMAGIC_STRING; 3387c478bd9Sstevel@tonic-gate char javamagicstr[] = JAVAMAGIC_STRING; 3397c478bd9Sstevel@tonic-gate #if defined(__sparc) 3407c478bd9Sstevel@tonic-gate char aout_nmagicstr[] = AOUT_NMAGIC_STRING; 3417c478bd9Sstevel@tonic-gate char aout_zmagicstr[] = AOUT_ZMAGIC_STRING; 3427c478bd9Sstevel@tonic-gate char aout_omagicstr[] = AOUT_OMAGIC_STRING; 3437c478bd9Sstevel@tonic-gate #endif 3447c478bd9Sstevel@tonic-gate char nomagicstr[] = NOMAGIC_STRING; 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate char *execswnames[] = { 3477c478bd9Sstevel@tonic-gate "elfexec", /* Elf32 */ 3487c478bd9Sstevel@tonic-gate #ifdef _LP64 3497c478bd9Sstevel@tonic-gate "elfexec", /* Elf64 */ 3507c478bd9Sstevel@tonic-gate #endif 3517c478bd9Sstevel@tonic-gate "intpexec", 3527c2fbfb3SApril Chin "shbinexec", 3537c478bd9Sstevel@tonic-gate "javaexec", 3547c478bd9Sstevel@tonic-gate #if defined(__sparc) 3557c478bd9Sstevel@tonic-gate "aoutexec", 3567c478bd9Sstevel@tonic-gate "aoutexec", 3577c478bd9Sstevel@tonic-gate "aoutexec", 3587c478bd9Sstevel@tonic-gate #endif 3597c478bd9Sstevel@tonic-gate NULL, 3607c478bd9Sstevel@tonic-gate NULL, 3617c478bd9Sstevel@tonic-gate NULL 3627c478bd9Sstevel@tonic-gate }; 3637c478bd9Sstevel@tonic-gate 3647c478bd9Sstevel@tonic-gate struct execsw execsw[] = { 3657c478bd9Sstevel@tonic-gate { elf32magicstr, 0, 5, NULL, NULL, NULL }, 3667c478bd9Sstevel@tonic-gate #ifdef _LP64 3677c478bd9Sstevel@tonic-gate { elf64magicstr, 0, 5, NULL, NULL, NULL }, 3687c478bd9Sstevel@tonic-gate #endif 3697c478bd9Sstevel@tonic-gate { intpmagicstr, 0, 2, NULL, NULL, NULL }, 3707c2fbfb3SApril Chin { shbinmagicstr, 0, SHBINMAGIC_LEN, NULL, NULL, NULL }, 3717c478bd9Sstevel@tonic-gate { javamagicstr, 0, 4, NULL, NULL, NULL }, 3727c478bd9Sstevel@tonic-gate #if defined(__sparc) 3737c478bd9Sstevel@tonic-gate { aout_zmagicstr, 2, 2, NULL, NULL, NULL }, 3747c478bd9Sstevel@tonic-gate { aout_nmagicstr, 2, 2, NULL, NULL, NULL }, 3757c478bd9Sstevel@tonic-gate { aout_omagicstr, 2, 2, NULL, NULL, NULL }, 3767c478bd9Sstevel@tonic-gate #endif 3777c478bd9Sstevel@tonic-gate { nomagicstr, 0, 0, NULL, NULL, NULL }, 3787c478bd9Sstevel@tonic-gate { nomagicstr, 0, 0, NULL, NULL, NULL }, 3797c478bd9Sstevel@tonic-gate { nomagicstr, 0, 0, NULL, NULL, NULL }, 3807c478bd9Sstevel@tonic-gate { nomagicstr, 0, 0, NULL, NULL, NULL } 3817c478bd9Sstevel@tonic-gate }; 3827c478bd9Sstevel@tonic-gate int nexectype = sizeof (execsw) / sizeof (execsw[0]); /* # of exec types */ 3837c478bd9Sstevel@tonic-gate kmutex_t execsw_lock; /* Used for allocation of execsw entries */ 3847c478bd9Sstevel@tonic-gate 3857c478bd9Sstevel@tonic-gate /* 3867c478bd9Sstevel@tonic-gate * symbols added to make changing max-file-descriptors 3877c478bd9Sstevel@tonic-gate * simple via /etc/system 3887c478bd9Sstevel@tonic-gate */ 3897c478bd9Sstevel@tonic-gate #define RLIM_FD_CUR 0x100 3907c478bd9Sstevel@tonic-gate #define RLIM_FD_MAX 0x10000 3917c478bd9Sstevel@tonic-gate 3927c478bd9Sstevel@tonic-gate uint_t rlim_fd_cur = RLIM_FD_CUR; 3937c478bd9Sstevel@tonic-gate uint_t rlim_fd_max = RLIM_FD_MAX; 3947c478bd9Sstevel@tonic-gate 3957c478bd9Sstevel@tonic-gate /* 3967c478bd9Sstevel@tonic-gate * (Default resource limits were formerly declared here, but are now provided by 3977c478bd9Sstevel@tonic-gate * the more general resource controls framework.) 3987c478bd9Sstevel@tonic-gate */ 3997c478bd9Sstevel@tonic-gate 4007c478bd9Sstevel@tonic-gate /* 401e4506d67Smeem * STREAMS tunables 4027c478bd9Sstevel@tonic-gate */ 403e4506d67Smeem int nstrpush = 9; /* maximum # of modules/drivers on a stream */ 404e4506d67Smeem ssize_t strctlsz = 1024; /* maximum size of user-generated M_PROTO */ 405e4506d67Smeem ssize_t strmsgsz = 0x10000; /* maximum size of user-generated M_DATA */ 406e4506d67Smeem /* for `strmsgsz', zero means unlimited */ 4077c478bd9Sstevel@tonic-gate /* 408e4506d67Smeem * Filesystem tunables 4097c478bd9Sstevel@tonic-gate */ 4107c478bd9Sstevel@tonic-gate int rstchown = 1; /* POSIX_CHOWN_RESTRICTED is enabled */ 4117c478bd9Sstevel@tonic-gate int ngroups_max = NGROUPS_MAX_DEFAULT; 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate /* 4147c478bd9Sstevel@tonic-gate * generic scheduling stuff 4157c478bd9Sstevel@tonic-gate * 4167c478bd9Sstevel@tonic-gate * Configurable parameters for RT and TS are in the respective 4177c478bd9Sstevel@tonic-gate * scheduling class modules. 4187c478bd9Sstevel@tonic-gate */ 4197c478bd9Sstevel@tonic-gate 4207c478bd9Sstevel@tonic-gate pri_t maxclsyspri = MAXCLSYSPRI; 4217c478bd9Sstevel@tonic-gate pri_t minclsyspri = MINCLSYSPRI; 4227c478bd9Sstevel@tonic-gate char sys_name[] = "SYS"; 4237c478bd9Sstevel@tonic-gate 4247c478bd9Sstevel@tonic-gate extern pri_t sys_init(); 4257c478bd9Sstevel@tonic-gate extern classfuncs_t sys_classfuncs; 4267c478bd9Sstevel@tonic-gate 4277c478bd9Sstevel@tonic-gate sclass_t sclass[] = { 4287c478bd9Sstevel@tonic-gate { "SYS", sys_init, &sys_classfuncs, STATIC_SCHED, 0 }, 4297c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4307c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4317c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4327c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4337c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4347c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4357c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4367c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 }, 4377c478bd9Sstevel@tonic-gate { "", NULL, NULL, NULL, 0 } 4387c478bd9Sstevel@tonic-gate }; 4397c478bd9Sstevel@tonic-gate 4407c478bd9Sstevel@tonic-gate int loaded_classes = 1; /* for loaded classes */ 4417c478bd9Sstevel@tonic-gate kmutex_t class_lock; /* lock for class[] */ 4427c478bd9Sstevel@tonic-gate 4437c478bd9Sstevel@tonic-gate int nclass = sizeof (sclass) / sizeof (sclass_t); 4447c478bd9Sstevel@tonic-gate char initcls[] = "TS"; 4457c478bd9Sstevel@tonic-gate char *defaultclass = initcls; 4467c478bd9Sstevel@tonic-gate 4477c478bd9Sstevel@tonic-gate /* 4487c478bd9Sstevel@tonic-gate * Tunable system parameters. 4497c478bd9Sstevel@tonic-gate */ 4507c478bd9Sstevel@tonic-gate 4517c478bd9Sstevel@tonic-gate /* 4527c478bd9Sstevel@tonic-gate * The integers tune_* are done this way so that the tune 4537c478bd9Sstevel@tonic-gate * data structure may be "tuned" if necessary from the /etc/system 4547c478bd9Sstevel@tonic-gate * file. The tune data structure is initialized in param_init(); 4557c478bd9Sstevel@tonic-gate */ 4567c478bd9Sstevel@tonic-gate 4577c478bd9Sstevel@tonic-gate tune_t tune; 4587c478bd9Sstevel@tonic-gate 4597c478bd9Sstevel@tonic-gate /* 4607c478bd9Sstevel@tonic-gate * If freemem < t_getpgslow, then start to steal pages from processes. 4617c478bd9Sstevel@tonic-gate */ 4627c478bd9Sstevel@tonic-gate int tune_t_gpgslo = 25; 4637c478bd9Sstevel@tonic-gate 4647c478bd9Sstevel@tonic-gate /* 4657c478bd9Sstevel@tonic-gate * Rate at which fsflush is run, in seconds. 4667c478bd9Sstevel@tonic-gate */ 4677c478bd9Sstevel@tonic-gate #define DEFAULT_TUNE_T_FSFLUSHR 1 4687c478bd9Sstevel@tonic-gate int tune_t_fsflushr = DEFAULT_TUNE_T_FSFLUSHR; 4697c478bd9Sstevel@tonic-gate 4707c478bd9Sstevel@tonic-gate /* 4717c478bd9Sstevel@tonic-gate * The minimum available resident (not swappable) memory to maintain 4727c478bd9Sstevel@tonic-gate * in order to avoid deadlock. In pages. 4737c478bd9Sstevel@tonic-gate */ 4747c478bd9Sstevel@tonic-gate int tune_t_minarmem = 25; 4757c478bd9Sstevel@tonic-gate 4767c478bd9Sstevel@tonic-gate /* 4777c478bd9Sstevel@tonic-gate * The minimum available swappable memory to maintain in order to avoid 4787c478bd9Sstevel@tonic-gate * deadlock. In pages. 4797c478bd9Sstevel@tonic-gate */ 4807c478bd9Sstevel@tonic-gate int tune_t_minasmem = 25; 4817c478bd9Sstevel@tonic-gate 4827c478bd9Sstevel@tonic-gate int tune_t_flckrec = 512; /* max # of active frlocks */ 4837c478bd9Sstevel@tonic-gate 4847c478bd9Sstevel@tonic-gate /* 4857c478bd9Sstevel@tonic-gate * Number of currently available pages that cannot be 'locked' 4867c478bd9Sstevel@tonic-gate * This is set in init_pages_pp_maximum, and must be initialized 4877c478bd9Sstevel@tonic-gate * to zero here to detect an override in /etc/system 4887c478bd9Sstevel@tonic-gate */ 4897c478bd9Sstevel@tonic-gate pgcnt_t pages_pp_maximum = 0; 4907c478bd9Sstevel@tonic-gate 4917c478bd9Sstevel@tonic-gate int boothowto; /* boot flags passed to kernel */ 4927c478bd9Sstevel@tonic-gate struct var v; /* System Configuration Information */ 4937c478bd9Sstevel@tonic-gate 4947c478bd9Sstevel@tonic-gate /* 4957c478bd9Sstevel@tonic-gate * System Configuration Information 4967c478bd9Sstevel@tonic-gate */ 4977c478bd9Sstevel@tonic-gate 498*5679c89fSjv227347 /* 499*5679c89fSjv227347 * The physical system's host identifier, expressed as a decimal string. 500*5679c89fSjv227347 * Code should only directly access this value when writing to it (setting the 501*5679c89fSjv227347 * physical system's host identifier). Code that reads the physical system's 502*5679c89fSjv227347 * host identifier should use zone_get_hostid(NULL) instead. 503*5679c89fSjv227347 */ 504*5679c89fSjv227347 char hw_serial[HW_HOSTID_LEN] = "0"; 505*5679c89fSjv227347 5067c478bd9Sstevel@tonic-gate #if defined(__sparc) 5077c478bd9Sstevel@tonic-gate 5087c478bd9Sstevel@tonic-gate /* 5097c478bd9Sstevel@tonic-gate * On sparc machines, read hw_serial from the firmware at boot time 5107c478bd9Sstevel@tonic-gate * and simply assert Sun is the hardware provider. Hmm. 5117c478bd9Sstevel@tonic-gate */ 5127c478bd9Sstevel@tonic-gate char architecture[] = "sparcv9"; 5137c478bd9Sstevel@tonic-gate char architecture_32[] = "sparc"; 5147c478bd9Sstevel@tonic-gate char hw_provider[] = "Sun_Microsystems"; 5157c478bd9Sstevel@tonic-gate 5167c478bd9Sstevel@tonic-gate #elif defined(__i386) 5177c478bd9Sstevel@tonic-gate 5187c478bd9Sstevel@tonic-gate /* 5197c478bd9Sstevel@tonic-gate * On x86 machines, read hw_serial, hw_provider and srpc_domain from 5207c478bd9Sstevel@tonic-gate * /etc/bootrc at boot time. 5217c478bd9Sstevel@tonic-gate */ 5227c478bd9Sstevel@tonic-gate char architecture[] = "i386"; 5237c478bd9Sstevel@tonic-gate char architecture_32[] = "i386"; 5247c478bd9Sstevel@tonic-gate char hw_provider[SYS_NMLN] = ""; 5257c478bd9Sstevel@tonic-gate 5267c478bd9Sstevel@tonic-gate #elif defined(__amd64) 5277c478bd9Sstevel@tonic-gate 5287c478bd9Sstevel@tonic-gate /* 5297c478bd9Sstevel@tonic-gate * On amd64 machines, read hw_serial, hw_provider and srpc_domain from 5307c478bd9Sstevel@tonic-gate * /etc/bootrc at boot time. 5317c478bd9Sstevel@tonic-gate */ 5327c478bd9Sstevel@tonic-gate char architecture[] = "amd64"; 5337c478bd9Sstevel@tonic-gate char architecture_32[] = "i386"; 5347c478bd9Sstevel@tonic-gate char hw_provider[SYS_NMLN] = ""; 5357c478bd9Sstevel@tonic-gate 5367c478bd9Sstevel@tonic-gate #else 5377c478bd9Sstevel@tonic-gate #error "unknown processor architecture" 5387c478bd9Sstevel@tonic-gate #endif 5397c478bd9Sstevel@tonic-gate 5407c478bd9Sstevel@tonic-gate char srpc_domain[SYS_NMLN] = ""; 5417c478bd9Sstevel@tonic-gate char platform[SYS_NMLN] = ""; /* read from the devinfo root node */ 5427c478bd9Sstevel@tonic-gate 5437c478bd9Sstevel@tonic-gate /* Initialize isa_list */ 5447c478bd9Sstevel@tonic-gate char *isa_list = architecture; 5457c478bd9Sstevel@tonic-gate 5467c478bd9Sstevel@tonic-gate static pgcnt_t original_physmem = 0; 5477c478bd9Sstevel@tonic-gate 5487c478bd9Sstevel@tonic-gate #define MIN_DEFAULT_MAXUSERS 8u 5497c478bd9Sstevel@tonic-gate #define MAX_DEFAULT_MAXUSERS 2048u 5507c478bd9Sstevel@tonic-gate #define MAX_MAXUSERS 4096u 5517c478bd9Sstevel@tonic-gate 5527c478bd9Sstevel@tonic-gate void 5537c478bd9Sstevel@tonic-gate param_preset(void) 5547c478bd9Sstevel@tonic-gate { 5557c478bd9Sstevel@tonic-gate original_physmem = physmem; 5567c478bd9Sstevel@tonic-gate } 5577c478bd9Sstevel@tonic-gate 5587c478bd9Sstevel@tonic-gate void 5597c478bd9Sstevel@tonic-gate param_calc(int platform_max_nprocs) 5607c478bd9Sstevel@tonic-gate { 5617c478bd9Sstevel@tonic-gate /* 5627c478bd9Sstevel@tonic-gate * Default to about one "user" per megabyte, taking into 5637c478bd9Sstevel@tonic-gate * account both physical and virtual constraints. 5647c478bd9Sstevel@tonic-gate * Note: 2^20 is a meg; shifting right by (20 - PAGESHIFT) 5657c478bd9Sstevel@tonic-gate * converts pages to megs without integer overflow. 5667c478bd9Sstevel@tonic-gate */ 5674944b02eSkchow #if defined(__sparc) 5687c478bd9Sstevel@tonic-gate if (physmem > original_physmem) { 5697c478bd9Sstevel@tonic-gate physmem = original_physmem; 5707c478bd9Sstevel@tonic-gate cmn_err(CE_NOTE, "physmem limited to %ld", physmem); 5717c478bd9Sstevel@tonic-gate } 5724944b02eSkchow #endif 5737c478bd9Sstevel@tonic-gate if (maxusers == 0) { 5747c478bd9Sstevel@tonic-gate pgcnt_t physmegs = physmem >> (20 - PAGESHIFT); 5757c478bd9Sstevel@tonic-gate pgcnt_t virtmegs = vmem_size(heap_arena, VMEM_FREE) >> 20; 5767c478bd9Sstevel@tonic-gate maxusers = MIN(MAX(MIN(physmegs, virtmegs), 5777c478bd9Sstevel@tonic-gate MIN_DEFAULT_MAXUSERS), MAX_DEFAULT_MAXUSERS); 5787c478bd9Sstevel@tonic-gate } 5797c478bd9Sstevel@tonic-gate if (maxusers > MAX_MAXUSERS) { 5807c478bd9Sstevel@tonic-gate maxusers = MAX_MAXUSERS; 5817c478bd9Sstevel@tonic-gate cmn_err(CE_NOTE, "maxusers limited to %d", MAX_MAXUSERS); 5827c478bd9Sstevel@tonic-gate } 5837c478bd9Sstevel@tonic-gate 5847c478bd9Sstevel@tonic-gate if (ngroups_max > NGROUPS_MAX_DEFAULT) 58535b1ab99Sjosephb cmn_err(CE_WARN, "ngroups_max of %d > %d, NFS AUTH_SYS will" 58635b1ab99Sjosephb " not work properly", ngroups_max, NGROUPS_MAX_DEFAULT); 5877c478bd9Sstevel@tonic-gate 5887c478bd9Sstevel@tonic-gate #ifdef DEBUG 5897c478bd9Sstevel@tonic-gate /* 5907c478bd9Sstevel@tonic-gate * The purpose of maxusers is to prevent memory overcommit. 5917c478bd9Sstevel@tonic-gate * DEBUG kernels take more space, so reduce maxusers a bit. 5927c478bd9Sstevel@tonic-gate */ 5937c478bd9Sstevel@tonic-gate maxusers = (3 * maxusers) / 4; 5947c478bd9Sstevel@tonic-gate #endif 5957c478bd9Sstevel@tonic-gate 5967c478bd9Sstevel@tonic-gate /* 5977c478bd9Sstevel@tonic-gate * We need to dynamically change any variables now so that 5987c478bd9Sstevel@tonic-gate * the setting of maxusers and pidmax propagate to the other 5997c478bd9Sstevel@tonic-gate * variables that are dependent on them. 6007c478bd9Sstevel@tonic-gate */ 6017c478bd9Sstevel@tonic-gate if (reserved_procs == 0) 6027c478bd9Sstevel@tonic-gate reserved_procs = 5; 6037c478bd9Sstevel@tonic-gate if (pidmax < reserved_procs || pidmax > MAX_MAXPID) 6047c478bd9Sstevel@tonic-gate maxpid = MAX_MAXPID; 6057c478bd9Sstevel@tonic-gate else 6067c478bd9Sstevel@tonic-gate maxpid = pidmax; 6077c478bd9Sstevel@tonic-gate 6087c478bd9Sstevel@tonic-gate /* 6097c478bd9Sstevel@tonic-gate * This allows platform-dependent code to constrain the maximum 6107c478bd9Sstevel@tonic-gate * number of processes allowed in case there are e.g. VM limitations 6117c478bd9Sstevel@tonic-gate * with how many contexts are available. 6127c478bd9Sstevel@tonic-gate */ 6137c478bd9Sstevel@tonic-gate if (max_nprocs == 0) 6147c478bd9Sstevel@tonic-gate max_nprocs = (10 + 16 * maxusers); 6157c478bd9Sstevel@tonic-gate if (platform_max_nprocs > 0 && max_nprocs > platform_max_nprocs) 6167c478bd9Sstevel@tonic-gate max_nprocs = platform_max_nprocs; 6177c478bd9Sstevel@tonic-gate if (max_nprocs > maxpid) 6187c478bd9Sstevel@tonic-gate max_nprocs = maxpid; 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate if (maxuprc == 0) 6217c478bd9Sstevel@tonic-gate maxuprc = (max_nprocs - reserved_procs); 6227c478bd9Sstevel@tonic-gate } 6237c478bd9Sstevel@tonic-gate 6247c478bd9Sstevel@tonic-gate void 6257c478bd9Sstevel@tonic-gate param_init(void) 6267c478bd9Sstevel@tonic-gate { 6277c478bd9Sstevel@tonic-gate /* 6287c478bd9Sstevel@tonic-gate * Set each individual element of struct var v to be the 6297c478bd9Sstevel@tonic-gate * default value. This is done this way 6307c478bd9Sstevel@tonic-gate * so that a user can set the assigned integer value in the 6317c478bd9Sstevel@tonic-gate * /etc/system file *IF* tuning is needed. 6327c478bd9Sstevel@tonic-gate */ 6337c478bd9Sstevel@tonic-gate v.v_proc = max_nprocs; /* v_proc - max # of processes system wide */ 6347c478bd9Sstevel@tonic-gate v.v_maxupttl = max_nprocs - reserved_procs; 6357c478bd9Sstevel@tonic-gate v.v_maxsyspri = (int)maxclsyspri; /* max global pri for sysclass */ 6367c478bd9Sstevel@tonic-gate v.v_maxup = MIN(maxuprc, v.v_maxupttl); /* max procs per user */ 6377c478bd9Sstevel@tonic-gate v.v_autoup = autoup; /* v_autoup - delay for delayed writes */ 6387c478bd9Sstevel@tonic-gate 6397c478bd9Sstevel@tonic-gate /* 6407c478bd9Sstevel@tonic-gate * Set each individual element of struct tune to be the 6417c478bd9Sstevel@tonic-gate * default value. Each struct element This is done this way 6427c478bd9Sstevel@tonic-gate * so that a user can set the assigned integer value in the 6437c478bd9Sstevel@tonic-gate * /etc/system file *IF* tuning is needed. 6447c478bd9Sstevel@tonic-gate */ 6457c478bd9Sstevel@tonic-gate tune.t_gpgslo = tune_t_gpgslo; 6467c478bd9Sstevel@tonic-gate tune.t_fsflushr = tune_t_fsflushr; 6477c478bd9Sstevel@tonic-gate tune.t_minarmem = tune_t_minarmem; 6487c478bd9Sstevel@tonic-gate tune.t_minasmem = tune_t_minasmem; 6497c478bd9Sstevel@tonic-gate tune.t_flckrec = tune_t_flckrec; 6507c478bd9Sstevel@tonic-gate 6517c478bd9Sstevel@tonic-gate /* 6527c478bd9Sstevel@tonic-gate * Initialization for file descriptors to correct mistaken settings in 6537c478bd9Sstevel@tonic-gate * /etc/system. Initialization of limits performed by resource control 6547c478bd9Sstevel@tonic-gate * system. 6557c478bd9Sstevel@tonic-gate */ 6567c478bd9Sstevel@tonic-gate if (rlim_fd_cur > rlim_fd_max) 6577c478bd9Sstevel@tonic-gate rlim_fd_cur = rlim_fd_max; 6587c478bd9Sstevel@tonic-gate 6597c478bd9Sstevel@tonic-gate /* 6607c478bd9Sstevel@tonic-gate * calculations needed if hz was set in /etc/system 6617c478bd9Sstevel@tonic-gate */ 6627c478bd9Sstevel@tonic-gate if (hires_tick) 6637c478bd9Sstevel@tonic-gate hz = hires_hz; 6647c478bd9Sstevel@tonic-gate 6657c478bd9Sstevel@tonic-gate tick_per_msec = hz / MILLISEC; 6667c478bd9Sstevel@tonic-gate msec_per_tick = MILLISEC / hz; 6677c478bd9Sstevel@tonic-gate usec_per_tick = MICROSEC / hz; 6687c478bd9Sstevel@tonic-gate nsec_per_tick = NANOSEC / hz; 6697c478bd9Sstevel@tonic-gate max_hres_adj = nsec_per_tick >> ADJ_SHIFT; 6707c478bd9Sstevel@tonic-gate } 6717c478bd9Sstevel@tonic-gate 6727c478bd9Sstevel@tonic-gate /* 6737c478bd9Sstevel@tonic-gate * Validate tuneable parameters following /etc/system processing, 6747c478bd9Sstevel@tonic-gate * but prior to param_init(). 6757c478bd9Sstevel@tonic-gate */ 6767c478bd9Sstevel@tonic-gate void 6777c478bd9Sstevel@tonic-gate param_check(void) 6787c478bd9Sstevel@tonic-gate { 67935b1ab99Sjosephb #if defined(__x86) 68035b1ab99Sjosephb if (physmem != original_physmem) { 68135b1ab99Sjosephb cmn_err(CE_NOTE, "physmem cannot be modified to 0x%lx" 68235b1ab99Sjosephb " via /etc/system. Please use eeprom(1M) instead.", 68335b1ab99Sjosephb physmem); 68435b1ab99Sjosephb physmem = original_physmem; 68535b1ab99Sjosephb } 68635b1ab99Sjosephb #endif 6877c478bd9Sstevel@tonic-gate if (ngroups_max < NGROUPS_UMIN || ngroups_max > NGROUPS_UMAX) 6887c478bd9Sstevel@tonic-gate ngroups_max = NGROUPS_MAX_DEFAULT; 6897c478bd9Sstevel@tonic-gate 6907c478bd9Sstevel@tonic-gate if (autoup <= 0) { 6917c478bd9Sstevel@tonic-gate autoup = DEFAULT_AUTOUP; 6927c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "autoup <= 0; defaulting to %d", autoup); 6937c478bd9Sstevel@tonic-gate } 6947c478bd9Sstevel@tonic-gate 6957c478bd9Sstevel@tonic-gate if (tune_t_fsflushr <= 0) { 6967c478bd9Sstevel@tonic-gate tune_t_fsflushr = DEFAULT_TUNE_T_FSFLUSHR; 6977c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "tune_t_fsflushr <= 0; defaulting to %d", 6987c478bd9Sstevel@tonic-gate tune_t_fsflushr); 6997c478bd9Sstevel@tonic-gate } 7007c478bd9Sstevel@tonic-gate 7017c478bd9Sstevel@tonic-gate if (jump_pid < 0 || jump_pid >= pidmax) { 7027c478bd9Sstevel@tonic-gate jump_pid = 0; 7037c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "jump_pid < 0 or >= pidmax; ignored"); 7047c478bd9Sstevel@tonic-gate } 7057c478bd9Sstevel@tonic-gate 7067c478bd9Sstevel@tonic-gate if (snoop_interval < SNOOP_INTERVAL_MIN) { 7077c478bd9Sstevel@tonic-gate snoop_interval = SNOOP_INTERVAL_DEFAULT; 7087c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "snoop_interval < minimum (%d); defaulting" 7097c478bd9Sstevel@tonic-gate " to %d", SNOOP_INTERVAL_MIN, SNOOP_INTERVAL_DEFAULT); 7107c478bd9Sstevel@tonic-gate } 7117c478bd9Sstevel@tonic-gate } 712