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 */ 287c478bd9Sstevel@tonic-gate /* 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 */ 9741791439Sandrei #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 */ 122f1b92f9dSRobert Mustacchi 123f1b92f9dSRobert Mustacchi /* 124f1b92f9dSRobert Mustacchi * Use a slightly larger thread stack size for interrupt threads rather than 125f1b92f9dSRobert Mustacchi * the default. This is useful for cases where the networking stack may do an 126f1b92f9dSRobert Mustacchi * rx and a tx in the context of a single interrupt and when combined with 127f1b92f9dSRobert Mustacchi * various promisc hooks that need memory, can cause us to get dangerously 128f1b92f9dSRobert Mustacchi * close to the edge of the traditional stack sizes. This is only a few pages 129f1b92f9dSRobert Mustacchi * more than a traditional stack and given that we don't have that many 130f1b92f9dSRobert Mustacchi * interrupt threads, the memory costs end up being more than worthwhile. 131f1b92f9dSRobert Mustacchi */ 132f1b92f9dSRobert Mustacchi #define LL_INTR_STKSZ_NPGS 8 133f1b92f9dSRobert Mustacchi #define LL_INTR_STKSZ (LL_INTR_STKSZ_NPGS * PAGESIZE) 13441791439Sandrei 1357c478bd9Sstevel@tonic-gate /* 136ae115bc7Smrj * During intial boot we limit heap to the top 4Gig. 1377c478bd9Sstevel@tonic-gate */ 138ae115bc7Smrj #define BOOT_KERNELHEAP_BASE ADDRESS_C(0xffffffff00000000) 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate /* 1417c478bd9Sstevel@tonic-gate * VMWare works best if we don't use the top 64Meg of memory for amd64. 1427c478bd9Sstevel@tonic-gate * Set KERNEL_TEXT to top_o_memory - 64Meg - 8 Meg for 8Meg of nucleus pages. 1437c478bd9Sstevel@tonic-gate */ 1447c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 145ae115bc7Smrj 146ae115bc7Smrj /* 147ae115bc7Smrj * Virtual address range available to the debugger 148ae115bc7Smrj */ 149ae115bc7Smrj #define SEGDEBUGBASE ADDRESS_C(0xffffffffff800000) 150ae115bc7Smrj #define SEGDEBUGSIZE ADDRESS_C(0x400000) 1517c478bd9Sstevel@tonic-gate 15204909c8cSJohn Levon #define KERNEL_TEXT UINT64_C(0xfffffffffb800000) 1537c478bd9Sstevel@tonic-gate 154ae115bc7Smrj /* 15574ecdb51SJohn Levon * Reserve pages just below KERNEL_TEXT for the GDT, IDT, LDT, TSS and debug 15674ecdb51SJohn Levon * info. 15782664878Sjosephb * 15882664878Sjosephb * For now, DEBUG_INFO_VA must be first in this list for "xm" initiated dumps 15982664878Sjosephb * of solaris domUs to be usable with mdb. Relying on a fixed VA is not viable 16082664878Sjosephb * long term, but it's the best we've got for now. 161ae115bc7Smrj */ 162ae115bc7Smrj #if !defined(_ASM) 16382664878Sjosephb #define DEBUG_INFO_VA (KERNEL_TEXT - MMU_PAGESIZE) 16482664878Sjosephb #define GDT_VA (DEBUG_INFO_VA - MMU_PAGESIZE) 1650cfdb603Sjosephb #define IDT_VA (GDT_VA - MMU_PAGESIZE) 16674ecdb51SJohn Levon #define LDT_VA (IDT_VA - (16 * MMU_PAGESIZE)) 1674c7b9a81SPatrick Mooney #define KTSS_VA (LDT_VA - MMU_PAGESIZE) 1680cfdb603Sjosephb #define DFTSS_VA (KTSS_VA - MMU_PAGESIZE) 16982664878Sjosephb #define MISC_VA_BASE (DFTSS_VA) 1700cfdb603Sjosephb #define MISC_VA_SIZE (KERNEL_TEXT - MISC_VA_BASE) 171ae115bc7Smrj #endif /* !_ASM */ 172ae115bc7Smrj 17304909c8cSJohn Levon /* 17404909c8cSJohn Levon * Base of 'core' heap area, which is used for kernel and module text/data 17504909c8cSJohn Levon * that must be within a 2GB range to allow for rip-relative addressing. 17604909c8cSJohn Levon */ 17704909c8cSJohn Levon #define COREHEAP_BASE ADDRESS_C(0xffffffffc0000000) 17804909c8cSJohn Levon 17904909c8cSJohn Levon /* 18004909c8cSJohn Levon * This is valloc_base, above seg_kpm, but below everything else. 18104909c8cSJohn Levon * A lower value than this may be used if SEGKPM_BASE is adjusted. 18204909c8cSJohn Levon * See i86pc/os/startup.c 18304909c8cSJohn Levon */ 18404909c8cSJohn Levon #define VALLOC_BASE ADDRESS_C(0xfffffe0000000000) 18504909c8cSJohn Levon 18604909c8cSJohn Levon #define SEGZIOMINSIZE (400L * 1024 * 1024L) /* 400M */ 18704909c8cSJohn Levon #define SEGVMMMINSIZE (4096L * 1024 * 1024L) /* 4G */ 18804909c8cSJohn Levon 18904909c8cSJohn Levon #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 19004909c8cSJohn Levon #define SEGKPMAXSIZE (8L * 1024L * 1024L * 1024L) /* 8G */ 19104909c8cSJohn Levon #define SEGKPMINSIZE (200L * 1024 * 1024L) /* 200M */ 19204909c8cSJohn Levon 19304909c8cSJohn Levon #define SEGKPM_BASE ADDRESS_C(0xfffffd0000000000) 19404909c8cSJohn Levon 19504909c8cSJohn Levon /* 19604909c8cSJohn Levon * KERNELBASE is the virtual address at which the kernel segments start in 19704909c8cSJohn Levon * all contexts. 19804909c8cSJohn Levon * 19904909c8cSJohn Levon * KERNELBASE is not fixed. The value of KERNELBASE can change with 20004909c8cSJohn Levon * installed memory size. 20104909c8cSJohn Levon * 20204909c8cSJohn Levon * common/conf/param.c requires a compile time defined value for KERNELBASE. 20304909c8cSJohn Levon * This value is save in the variable _kernelbase. _kernelbase may then be 20404909c8cSJohn Levon * modified with to a different value in i86pc/os/startup.c. 20504909c8cSJohn Levon * 20604909c8cSJohn Levon * Most code should be using kernelbase, which resolves to a reference to 20704909c8cSJohn Levon * _kernelbase. 20804909c8cSJohn Levon */ 20904909c8cSJohn Levon #define KERNELBASE ADDRESS_C(0xfffffc8000000000) 21004909c8cSJohn Levon 21104909c8cSJohn Levon /* 21204909c8cSJohn Levon * Size of the unmapped "red zone" at the very bottom of the kernel's 21304909c8cSJohn Levon * address space. Corresponds to 1 slot in the toplevel pagetable. 21404909c8cSJohn Levon */ 21504909c8cSJohn Levon #define KERNEL_REDZONE_SIZE ((uintptr_t)1 << 39) 21604909c8cSJohn Levon 21704909c8cSJohn Levon /* 21804909c8cSJohn Levon * Define upper limit on user address space 21904909c8cSJohn Levon * 22004909c8cSJohn Levon * The upper limit on a 64-bit user address space is 1 large page 22104909c8cSJohn Levon * (2MB) below kernelbase. The upper limit for a 32-bit user address space 22204909c8cSJohn Levon * is 1 small page (4KB) below the top of the 32-bit range. The 64-bit 22304909c8cSJohn Levon * limit give dtrace the red zone it needs below kernelbase. The 32-bit 22404909c8cSJohn Levon * limit gives us a small red zone to detect address-space overruns in a 22504909c8cSJohn Levon * user program. 22604909c8cSJohn Levon * 22704909c8cSJohn Levon * On the hypervisor, we limit the user to memory below the VA hole. 22804909c8cSJohn Levon * Subtract 1 large page for a red zone. 22904909c8cSJohn Levon */ 23004909c8cSJohn Levon #if defined(__xpv) 23104909c8cSJohn Levon #define USERLIMIT ADDRESS_C(0x00007fffffe00000) 23204909c8cSJohn Levon #else 23304909c8cSJohn Levon #define USERLIMIT ADDRESS_C(0xfffffc7fffe00000) 23404909c8cSJohn Levon #endif 23504909c8cSJohn Levon 23604909c8cSJohn Levon #ifdef bug_5074717_is_fixed 23704909c8cSJohn Levon #define USERLIMIT32 ADDRESS_C(0xfffff000) 23804909c8cSJohn Levon #else 23904909c8cSJohn Levon #define USERLIMIT32 ADDRESS_C(0xfefff000) 24004909c8cSJohn Levon #endif 24104909c8cSJohn Levon 242ae115bc7Smrj #if !defined(_ASM) && !defined(_KMDB) 243ae115bc7Smrj extern uintptr_t kernelbase, segmap_start, segmapsize; 2447c478bd9Sstevel@tonic-gate #endif 2457c478bd9Sstevel@tonic-gate 2467c478bd9Sstevel@tonic-gate /* 2477c478bd9Sstevel@tonic-gate * ARGSBASE is the base virtual address of the range which 2487c478bd9Sstevel@tonic-gate * the kernel uses to map the arguments for exec. 2497c478bd9Sstevel@tonic-gate */ 2507c478bd9Sstevel@tonic-gate #define ARGSBASE PROMSTART 2517c478bd9Sstevel@tonic-gate 2527c478bd9Sstevel@tonic-gate /* 2537c478bd9Sstevel@tonic-gate * reserve space for modules 2547c478bd9Sstevel@tonic-gate */ 2557c478bd9Sstevel@tonic-gate #define MODTEXT (1024 * 1024 * 2) 2567c478bd9Sstevel@tonic-gate #define MODDATA (1024 * 300) 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* 2597c478bd9Sstevel@tonic-gate * The heap has a region allocated from it of HEAPTEXT_SIZE bytes specifically 2607c478bd9Sstevel@tonic-gate * for module text. 2617c478bd9Sstevel@tonic-gate */ 262*cab548c6SHans Rosenfeld #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 2637c478bd9Sstevel@tonic-gate 2647c478bd9Sstevel@tonic-gate /* 2657c478bd9Sstevel@tonic-gate * Size of a kernel threads stack. It must be a whole number of pages 2667c478bd9Sstevel@tonic-gate * since the segment it comes from will only allocate space in pages. 2677c478bd9Sstevel@tonic-gate */ 2687c478bd9Sstevel@tonic-gate #define T_STACKSZ 2*PAGESIZE 2697c478bd9Sstevel@tonic-gate 2707c478bd9Sstevel@tonic-gate /* 2717c478bd9Sstevel@tonic-gate * Size of a cpu startup thread stack. (It must be a whole number of pages 2727c478bd9Sstevel@tonic-gate * since the containing segment only allocates space in pages.) 2737c478bd9Sstevel@tonic-gate */ 2747c478bd9Sstevel@tonic-gate 2757c478bd9Sstevel@tonic-gate #define STARTUP_STKSZ 3*PAGESIZE 2767c478bd9Sstevel@tonic-gate 2777c478bd9Sstevel@tonic-gate /* 2787c478bd9Sstevel@tonic-gate * Bus types 2797c478bd9Sstevel@tonic-gate */ 2807c478bd9Sstevel@tonic-gate #define BTISA 1 2817c478bd9Sstevel@tonic-gate #define BTEISA 2 2827c478bd9Sstevel@tonic-gate #define BTMCA 3 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate #ifdef __cplusplus 2857c478bd9Sstevel@tonic-gate } 2867c478bd9Sstevel@tonic-gate #endif 2877c478bd9Sstevel@tonic-gate 2887c478bd9Sstevel@tonic-gate #endif /* _SYS_MACHPARAM_H */ 289