1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_CONTROLREGS_H 27 #define _SYS_CONTROLREGS_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifndef _ASM 32 #include <sys/types.h> 33 #endif 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* 40 * This file describes the x86 architecture control registers which 41 * are part of the privileged architecture. 42 * 43 * Many of these definitions are shared between IA-32-style and 44 * AMD64-style processors. 45 */ 46 47 /* CR0 Register */ 48 49 #define CR0_PG 0x80000000 /* paging enabled */ 50 #define CR0_CD 0x40000000 /* cache disable */ 51 #define CR0_NW 0x20000000 /* not writethrough */ 52 #define CR0_AM 0x00040000 /* alignment mask */ 53 #define CR0_WP 0x00010000 /* write protect */ 54 #define CR0_NE 0x00000020 /* numeric error */ 55 #define CR0_ET 0x00000010 /* extension type */ 56 #define CR0_TS 0x00000008 /* task switch */ 57 #define CR0_EM 0x00000004 /* emulation */ 58 #define CR0_MP 0x00000002 /* monitor coprocessor */ 59 #define CR0_PE 0x00000001 /* protection enabled */ 60 61 /* XX64 eliminate these compatibility defines */ 62 63 #define CR0_CE CR0_CD 64 #define CR0_WT CR0_NW 65 66 #define FMT_CR0 \ 67 "\20\40pg\37cd\36nw\35am\21wp\6ne\5et\4ts\3em\2mp\1pe" 68 69 /* 70 * Set the FPU-related control bits to explain to the processor that 71 * we're managing FPU state: 72 * - set monitor coprocessor (allow TS bit to control FPU) 73 * - set numeric exception (disable IGNNE# mechanism) 74 * - set task switch (#nm on first fp instruction) 75 * - clear emulate math bit (cause we're not emulating!) 76 */ 77 #define CR0_ENABLE_FPU_FLAGS(cr) \ 78 (((cr) | CR0_MP | CR0_NE | CR0_TS) & (uint32_t)~CR0_EM) 79 80 /* 81 * Set the FPU-related control bits to explain to the processor that 82 * we're -not- managing FPU state: 83 * - set emulate (all fp instructions cause #nm) 84 * - clear monitor coprocessor (so fwait/wait doesn't #nm) 85 */ 86 #define CR0_DISABLE_FPU_FLAGS(cr) \ 87 (((cr) | CR0_EM) & (uint32_t)~CR0_MP) 88 89 /* CR3 Register */ 90 91 #define CR3_PCD 0x00000010 /* cache disable */ 92 #define CR3_PWT 0x00000008 /* write through */ 93 94 #define FMT_CR3 "\20\5pcd\4pwt" 95 96 /* CR4 Register */ 97 98 #define CR4_VME 0x0001 /* virtual-8086 mode extensions */ 99 #define CR4_PVI 0x0002 /* protected-mode virtual interrupts */ 100 #define CR4_TSD 0x0004 /* time stamp disable */ 101 #define CR4_DE 0x0008 /* debugging extensions */ 102 #define CR4_PSE 0x0010 /* page size extensions */ 103 #define CR4_PAE 0x0020 /* physical address extension */ 104 #define CR4_MCE 0x0040 /* machine check enable */ 105 #define CR4_PGE 0x0080 /* page global enable */ 106 #define CR4_PCE 0x0100 /* perf-monitoring counter enable */ 107 #define CR4_OSFXSR 0x0200 /* OS fxsave/fxrstor support */ 108 #define CR4_OSXMMEXCPT 0x0400 /* OS unmasked exception support */ 109 /* 0x0800 reserved */ 110 /* 0x1000 reserved */ 111 #define CR4_VMXE 0x2000 112 #define CR4_SMXE 0x4000 113 114 #define FMT_CR4 \ 115 "\20\17smxe\16vmxe\13xmme\12fxsr\11pce\10pge" \ 116 "\7mce\6pae\5pse\4de\3tsd\2pvi\1vme" 117 118 /* 119 * Enable the SSE-related control bits to explain to the processor that 120 * we're managing XMM state and exceptions 121 */ 122 #define CR4_ENABLE_SSE_FLAGS(cr) \ 123 ((cr) | CR4_OSFXSR | CR4_OSXMMEXCPT) 124 125 /* 126 * Disable the SSE-related control bits to explain to the processor 127 * that we're NOT managing XMM state 128 */ 129 #define CR4_DISABLE_SSE_FLAGS(cr) \ 130 ((cr) & ~(uint32_t)(CR4_OSFXSR | CR4_OSXMMEXCPT)) 131 132 /* Intel's SYSENTER configuration registers */ 133 134 #define MSR_INTC_SEP_CS 0x174 /* kernel code selector MSR */ 135 #define MSR_INTC_SEP_ESP 0x175 /* kernel esp MSR */ 136 #define MSR_INTC_SEP_EIP 0x176 /* kernel eip MSR */ 137 138 /* AMD's EFER register */ 139 140 #define MSR_AMD_EFER 0xc0000080 /* extended feature enable MSR */ 141 142 #define AMD_EFER_FFXSR 0x4000 /* fast fxsave/fxrstor */ 143 #define AMD_EFER_SVME 0x1000 /* svm enable */ 144 #define AMD_EFER_NXE 0x0800 /* no-execute enable */ 145 #define AMD_EFER_LMA 0x0400 /* long mode active (read-only) */ 146 #define AMD_EFER_LME 0x0100 /* long mode enable */ 147 #define AMD_EFER_SCE 0x0001 /* system call extensions */ 148 149 #define FMT_AMD_EFER \ 150 "\20\17ffxsr\15svme\14nxe\13lma\11lme\1sce" 151 152 /* AMD's SYSCFG register */ 153 154 #define MSR_AMD_SYSCFG 0xc0000010 /* system configuration MSR */ 155 156 #define AMD_SYSCFG_TOM2 0x200000 /* MtrrTom2En */ 157 #define AMD_SYSCFG_MVDM 0x100000 /* MtrrVarDramEn */ 158 #define AMD_SYSCFG_MFDM 0x080000 /* MtrrFixDramModEn */ 159 #define AMD_SYSCFG_MFDE 0x040000 /* MtrrFixDramEn */ 160 161 #define FMT_AMD_SYSCFG \ 162 "\20\26tom2\25mvdm\24mfdm\23mfde" 163 164 /* AMD's syscall/sysret MSRs */ 165 166 #define MSR_AMD_STAR 0xc0000081 /* %cs:%ss:%cs:%ss:%eip for syscall */ 167 #define MSR_AMD_LSTAR 0xc0000082 /* target %rip of 64-bit syscall */ 168 #define MSR_AMD_CSTAR 0xc0000083 /* target %rip of 32-bit syscall */ 169 #define MSR_AMD_SFMASK 0xc0000084 /* syscall flag mask */ 170 171 /* AMD's FS.base and GS.base MSRs */ 172 173 #define MSR_AMD_FSBASE 0xc0000100 /* 64-bit base address for %fs */ 174 #define MSR_AMD_GSBASE 0xc0000101 /* 64-bit base address for %gs */ 175 #define MSR_AMD_KGSBASE 0xc0000102 /* swapgs swaps this with gsbase */ 176 #define MSR_AMD_TSCAUX 0xc0000103 /* %ecx value on rdtscp insn */ 177 178 /* AMD's configuration MSRs, weakly documented in the revision guide */ 179 180 #define MSR_AMD_DC_CFG 0xc0011022 181 182 #define AMD_DC_CFG_DIS_CNV_WC_SSO (UINT64_C(1) << 3) 183 #define AMD_DC_CFG_DIS_SMC_CHK_BUF (UINT64_C(1) << 10) 184 185 /* AMD's HWCR MSR */ 186 187 #define MSR_AMD_HWCR 0xc0010015 188 189 #define AMD_HWCR_FFDIS 0x00040 /* disable TLB Flush Filter */ 190 #define AMD_HWCR_MCI_STATUS_WREN 0x40000 /* enable write of MCi_STATUS */ 191 192 /* AMD's NorthBridge Config MSR, SHOULD ONLY BE WRITTEN TO BY BIOS */ 193 194 #define MSR_AMD_NB_CFG 0xc001001f 195 196 #define MSR_BU_CFG 0xc0011023 197 198 #define AMD_NB_CFG_SRQ_HEARTBEAT (UINT64_C(1) << 20) 199 #define AMD_NB_CFG_SRQ_SPR (UINT64_C(1) << 32) 200 201 /* AMD */ 202 #define MSR_AMD_PATCHLEVEL 0x8b 203 204 #ifdef __cplusplus 205 } 206 #endif 207 208 #endif /* !_SYS_CONTROLREGS_H */ 209