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 541791439Sandrei * Common Development and Distribution License (the "License"). 641791439Sandrei * 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 /* 2223d9e5acSMichael Corcoran * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. 23af868f46SMatthew Ahrens * Copyright (c) 2015 by Delphix. All rights reserved. 2474ecdb51SJohn Levon * Copyright 2018 Joyent, Inc. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 28b4203d75SMarcel Telka /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #ifndef _SYS_MACHPARAM_H 327c478bd9Sstevel@tonic-gate #define _SYS_MACHPARAM_H 337c478bd9Sstevel@tonic-gate 3404909c8cSJohn Levon #ifndef _ASM 3504909c8cSJohn Levon 367c478bd9Sstevel@tonic-gate #include <sys/types.h> 37843e1988Sjohnlev 38843e1988Sjohnlev #if defined(__xpv) 39843e1988Sjohnlev #include <sys/xpv_impl.h> 40843e1988Sjohnlev #endif 41843e1988Sjohnlev 4204909c8cSJohn Levon #endif /* !_ASM */ 437c478bd9Sstevel@tonic-gate 447c478bd9Sstevel@tonic-gate #ifdef __cplusplus 457c478bd9Sstevel@tonic-gate extern "C" { 467c478bd9Sstevel@tonic-gate #endif 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate #ifndef _ASM 497c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) c ## ul 507c478bd9Sstevel@tonic-gate #else /* _ASM */ 517c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) (c) 527c478bd9Sstevel@tonic-gate #endif /* _ASM */ 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate /* 5541791439Sandrei * Machine dependent parameters and limits. 567c478bd9Sstevel@tonic-gate */ 57ae115bc7Smrj 582428aad8SPatrick Mooney /* 592428aad8SPatrick Mooney * If NCPU grows beyond 256, sizing for the x86 comm page will require 602428aad8SPatrick Mooney * adjustment. 612428aad8SPatrick Mooney */ 62a563a037Sbholler #define NCPU 256 6323d9e5acSMichael Corcoran #define NCPU_LOG2 8 647c478bd9Sstevel@tonic-gate 65cb15d5d9SPeter Rival /* NCPU_P2 is NCPU rounded to a power of 2 */ 66cb15d5d9SPeter Rival #define NCPU_P2 (1 << NCPU_LOG2) 67cb15d5d9SPeter Rival 687c478bd9Sstevel@tonic-gate /* 697c478bd9Sstevel@tonic-gate * The value defined below could grow to 16. hat structure and 707c478bd9Sstevel@tonic-gate * page_t have room for 16 nodes. 717c478bd9Sstevel@tonic-gate */ 727c478bd9Sstevel@tonic-gate #define MAXNODES 4 737c478bd9Sstevel@tonic-gate #define NUMA_NODEMASK 0x0f 747c478bd9Sstevel@tonic-gate 757c478bd9Sstevel@tonic-gate /* 767c478bd9Sstevel@tonic-gate * Define the FPU symbol if we could run on a machine with an external 777c478bd9Sstevel@tonic-gate * FPU (i.e. not integrated with the normal machine state like the vax). 787c478bd9Sstevel@tonic-gate * 797c478bd9Sstevel@tonic-gate * The fpu is defined in the architecture manual, and the kernel hides 807c478bd9Sstevel@tonic-gate * its absence if it is not present, that's pretty integrated, no? 817c478bd9Sstevel@tonic-gate */ 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate /* supported page sizes */ 8402bc52beSkchow #define MMU_PAGE_SIZES 3 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate /* 877c478bd9Sstevel@tonic-gate * MMU_PAGES* describes the physical page size used by the mapping hardware. 887c478bd9Sstevel@tonic-gate * PAGES* describes the logical page size used by the system. 897c478bd9Sstevel@tonic-gate */ 907c478bd9Sstevel@tonic-gate 917c478bd9Sstevel@tonic-gate #define MMU_PAGESIZE 0x1000 /* 4096 bytes */ 927c478bd9Sstevel@tonic-gate #define MMU_PAGESHIFT 12 /* log2(MMU_PAGESIZE) */ 9341791439Sandrei 9441791439Sandrei #if !defined(_ASM) 957c478bd9Sstevel@tonic-gate #define MMU_PAGEOFFSET (MMU_PAGESIZE-1) /* Mask of address bits in page */ 96ae115bc7Smrj #else /* _ASM */ 97ae115bc7Smrj #define MMU_PAGEOFFSET _CONST(MMU_PAGESIZE-1) /* assembler lameness */ 98ae115bc7Smrj #endif /* _ASM */ 9941791439Sandrei 1007c478bd9Sstevel@tonic-gate #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 1017c478bd9Sstevel@tonic-gate 1027c478bd9Sstevel@tonic-gate #define PAGESIZE 0x1000 /* All of the above, for logical */ 1037c478bd9Sstevel@tonic-gate #define PAGESHIFT 12 1047c478bd9Sstevel@tonic-gate #define PAGEOFFSET (PAGESIZE - 1) 1057c478bd9Sstevel@tonic-gate #define PAGEMASK (~PAGEOFFSET) 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate /* 1087c478bd9Sstevel@tonic-gate * DATA_ALIGN is used to define the alignment of the Unix data segment. 1097c478bd9Sstevel@tonic-gate */ 1107c478bd9Sstevel@tonic-gate #define DATA_ALIGN PAGESIZE 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate /* 11341791439Sandrei * DEFAULT KERNEL THREAD stack size (in pages). 1147c478bd9Sstevel@tonic-gate */ 11541791439Sandrei #define DEFAULTSTKSZ_NPGS 5 1167c478bd9Sstevel@tonic-gate 11741791439Sandrei #if !defined(_ASM) 11841791439Sandrei #define DEFAULTSTKSZ (DEFAULTSTKSZ_NPGS * PAGESIZE) 11941791439Sandrei #else /* !_ASM */ 12041791439Sandrei #define DEFAULTSTKSZ _MUL(DEFAULTSTKSZ_NPGS, PAGESIZE) /* as(1) lameness */ 12141791439Sandrei #endif /* !_ASM */ 12241791439Sandrei 1237c478bd9Sstevel@tonic-gate /* 12404909c8cSJohn Levon * During intial boot we limit heap to the top 4Gig. 1257c478bd9Sstevel@tonic-gate */ 12604909c8cSJohn Levon #define BOOT_KERNELHEAP_BASE ADDRESS_C(0xffffffff00000000) 1277c478bd9Sstevel@tonic-gate 128843e1988Sjohnlev /* 12904909c8cSJohn Levon * VMWare works best if we don't use the top 64Meg of memory for amd64. 13004909c8cSJohn Levon * Set KERNEL_TEXT to top_o_memory - 64Meg - 8 Meg for 8Meg of nucleus pages. 131843e1988Sjohnlev */ 13204909c8cSJohn Levon #define PROMSTART ADDRESS_C(0xffc00000) 133843e1988Sjohnlev 13404909c8cSJohn Levon /* 13504909c8cSJohn Levon * Virtual address range available to the debugger 13604909c8cSJohn Levon */ 13704909c8cSJohn Levon #define SEGDEBUGBASE ADDRESS_C(0xffffffffff800000) 13804909c8cSJohn Levon #define SEGDEBUGSIZE ADDRESS_C(0x400000) 1397c478bd9Sstevel@tonic-gate 14004909c8cSJohn Levon #define KERNEL_TEXT UINT64_C(0xfffffffffb800000) 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate /* 14304909c8cSJohn Levon * Reserve pages just below KERNEL_TEXT for the GDT, IDT, LDT, TSS and debug 14404909c8cSJohn Levon * info. 14504909c8cSJohn Levon * 14604909c8cSJohn Levon * For now, DEBUG_INFO_VA must be first in this list for "xm" initiated dumps 14704909c8cSJohn Levon * of solaris domUs to be usable with mdb. Relying on a fixed VA is not viable 14804909c8cSJohn Levon * long term, but it's the best we've got for now. 1497c478bd9Sstevel@tonic-gate */ 15004909c8cSJohn Levon #if !defined(_ASM) 15104909c8cSJohn Levon #define DEBUG_INFO_VA (KERNEL_TEXT - MMU_PAGESIZE) 15204909c8cSJohn Levon #define GDT_VA (DEBUG_INFO_VA - MMU_PAGESIZE) 15304909c8cSJohn Levon #define IDT_VA (GDT_VA - MMU_PAGESIZE) 15404909c8cSJohn Levon #define LDT_VA (IDT_VA - (16 * MMU_PAGESIZE)) 155*4c7b9a81SPatrick Mooney #define KTSS_VA (LDT_VA - MMU_PAGESIZE) 15604909c8cSJohn Levon #define DFTSS_VA (KTSS_VA - MMU_PAGESIZE) 15704909c8cSJohn Levon #define MISC_VA_BASE (DFTSS_VA) 15804909c8cSJohn Levon #define MISC_VA_SIZE (KERNEL_TEXT - MISC_VA_BASE) 15904909c8cSJohn Levon #endif /* !_ASM */ 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate /* 1627c478bd9Sstevel@tonic-gate * Base of 'core' heap area, which is used for kernel and module text/data 1637c478bd9Sstevel@tonic-gate * that must be within a 2GB range to allow for rip-relative addressing. 1647c478bd9Sstevel@tonic-gate */ 1657c478bd9Sstevel@tonic-gate #define COREHEAP_BASE ADDRESS_C(0xffffffffc0000000) 1667c478bd9Sstevel@tonic-gate 167ae115bc7Smrj /* 16835b1ab99Sjosephb * This is valloc_base, above seg_kpm, but below everything else. 16935b1ab99Sjosephb * A lower value than this may be used if SEGKPM_BASE is adjusted. 17035b1ab99Sjosephb * See i86pc/os/startup.c 171ae115bc7Smrj */ 17204909c8cSJohn Levon #define VALLOC_BASE ADDRESS_C(0xfffffe0000000000) 17304909c8cSJohn Levon 17404909c8cSJohn Levon #define SEGZIOMINSIZE (400L * 1024 * 1024L) /* 400M */ 17504909c8cSJohn Levon #define SEGVMMMINSIZE (4096L * 1024 * 1024L) /* 4G */ 176ae115bc7Smrj 1777c478bd9Sstevel@tonic-gate #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 1787c478bd9Sstevel@tonic-gate #define SEGKPMAXSIZE (8L * 1024L * 1024L * 1024L) /* 8G */ 1797c478bd9Sstevel@tonic-gate #define SEGKPMINSIZE (200L * 1024 * 1024L) /* 200M */ 1807c478bd9Sstevel@tonic-gate 18104909c8cSJohn Levon #define SEGKPM_BASE ADDRESS_C(0xfffffd0000000000) 1827c478bd9Sstevel@tonic-gate 1837c478bd9Sstevel@tonic-gate /* 18404909c8cSJohn Levon * KERNELBASE is the virtual address at which the kernel segments start in 18504909c8cSJohn Levon * all contexts. 18604909c8cSJohn Levon * 18704909c8cSJohn Levon * KERNELBASE is not fixed. The value of KERNELBASE can change with 18804909c8cSJohn Levon * installed memory size. 18904909c8cSJohn Levon * 19004909c8cSJohn Levon * common/conf/param.c requires a compile time defined value for KERNELBASE. 19104909c8cSJohn Levon * This value is save in the variable _kernelbase. _kernelbase may then be 19204909c8cSJohn Levon * modified with to a different value in i86pc/os/startup.c. 19304909c8cSJohn Levon * 19404909c8cSJohn Levon * Most code should be using kernelbase, which resolves to a reference to 19504909c8cSJohn Levon * _kernelbase. 1967c478bd9Sstevel@tonic-gate */ 19704909c8cSJohn Levon #define KERNELBASE ADDRESS_C(0xfffffc8000000000) 198ae115bc7Smrj 199ae115bc7Smrj /* 20004909c8cSJohn Levon * Size of the unmapped "red zone" at the very bottom of the kernel's 20104909c8cSJohn Levon * address space. Corresponds to 1 slot in the toplevel pagetable. 202ae115bc7Smrj */ 20304909c8cSJohn Levon #define KERNEL_REDZONE_SIZE ((uintptr_t)1 << 39) 2047c478bd9Sstevel@tonic-gate 2057c478bd9Sstevel@tonic-gate /* 2067c478bd9Sstevel@tonic-gate * Define upper limit on user address space 2077c478bd9Sstevel@tonic-gate * 20804909c8cSJohn Levon * The upper limit on a 64-bit user address space is 1 large page 2097c478bd9Sstevel@tonic-gate * (2MB) below kernelbase. The upper limit for a 32-bit user address space 2107c478bd9Sstevel@tonic-gate * is 1 small page (4KB) below the top of the 32-bit range. The 64-bit 2117c478bd9Sstevel@tonic-gate * limit give dtrace the red zone it needs below kernelbase. The 32-bit 2127c478bd9Sstevel@tonic-gate * limit gives us a small red zone to detect address-space overruns in a 2137c478bd9Sstevel@tonic-gate * user program. 214843e1988Sjohnlev * 215843e1988Sjohnlev * On the hypervisor, we limit the user to memory below the VA hole. 216843e1988Sjohnlev * Subtract 1 large page for a red zone. 2177c478bd9Sstevel@tonic-gate */ 218843e1988Sjohnlev #if defined(__xpv) 219843e1988Sjohnlev #define USERLIMIT ADDRESS_C(0x00007fffffe00000) 220843e1988Sjohnlev #else 22104909c8cSJohn Levon #define USERLIMIT ADDRESS_C(0xfffffc7fffe00000) 222843e1988Sjohnlev #endif 223843e1988Sjohnlev 2247c478bd9Sstevel@tonic-gate #ifdef bug_5074717_is_fixed 2257c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfffff000) 2267c478bd9Sstevel@tonic-gate #else 2277c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfefff000) 2287c478bd9Sstevel@tonic-gate #endif 2297c478bd9Sstevel@tonic-gate 230ae115bc7Smrj #if !defined(_ASM) && !defined(_KMDB) 231ae115bc7Smrj extern uintptr_t kernelbase, segmap_start, segmapsize; 2327c478bd9Sstevel@tonic-gate #endif 2337c478bd9Sstevel@tonic-gate 2347c478bd9Sstevel@tonic-gate /* 2357c478bd9Sstevel@tonic-gate * ARGSBASE is the base virtual address of the range which 2367c478bd9Sstevel@tonic-gate * the kernel uses to map the arguments for exec. 2377c478bd9Sstevel@tonic-gate */ 2387c478bd9Sstevel@tonic-gate #define ARGSBASE PROMSTART 2397c478bd9Sstevel@tonic-gate 2407c478bd9Sstevel@tonic-gate /* 2417c478bd9Sstevel@tonic-gate * reserve space for modules 2427c478bd9Sstevel@tonic-gate */ 2437c478bd9Sstevel@tonic-gate #define MODTEXT (1024 * 1024 * 2) 2447c478bd9Sstevel@tonic-gate #define MODDATA (1024 * 300) 2457c478bd9Sstevel@tonic-gate 2467c478bd9Sstevel@tonic-gate /* 2477c478bd9Sstevel@tonic-gate * The heap has a region allocated from it of HEAPTEXT_SIZE bytes specifically 2487c478bd9Sstevel@tonic-gate * for module text. 2497c478bd9Sstevel@tonic-gate */ 2507c478bd9Sstevel@tonic-gate #define HEAPTEXT_SIZE (64 * 1024 * 1024) /* bytes */ 2517c478bd9Sstevel@tonic-gate 2527c478bd9Sstevel@tonic-gate /* 2537c478bd9Sstevel@tonic-gate * Size of a kernel threads stack. It must be a whole number of pages 2547c478bd9Sstevel@tonic-gate * since the segment it comes from will only allocate space in pages. 2557c478bd9Sstevel@tonic-gate */ 2567c478bd9Sstevel@tonic-gate #define T_STACKSZ 2*PAGESIZE 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* 2597c478bd9Sstevel@tonic-gate * Size of a cpu startup thread stack. (It must be a whole number of pages 2607c478bd9Sstevel@tonic-gate * since the containing segment only allocates space in pages.) 2617c478bd9Sstevel@tonic-gate */ 2627c478bd9Sstevel@tonic-gate 2637c478bd9Sstevel@tonic-gate #define STARTUP_STKSZ 3*PAGESIZE 2647c478bd9Sstevel@tonic-gate 2657c478bd9Sstevel@tonic-gate /* 2667c478bd9Sstevel@tonic-gate * Bus types 2677c478bd9Sstevel@tonic-gate */ 2687c478bd9Sstevel@tonic-gate #define BTISA 1 2697c478bd9Sstevel@tonic-gate #define BTEISA 2 2707c478bd9Sstevel@tonic-gate #define BTMCA 3 2717c478bd9Sstevel@tonic-gate 2727c478bd9Sstevel@tonic-gate #ifdef __cplusplus 2737c478bd9Sstevel@tonic-gate } 2747c478bd9Sstevel@tonic-gate #endif 2757c478bd9Sstevel@tonic-gate 2767c478bd9Sstevel@tonic-gate #endif /* _SYS_MACHPARAM_H */ 277