| 1 | /* |
|---|
| 2 | * hal_register.h - Values available in some x86 registers |
|---|
| 3 | * |
|---|
| 4 | * Author Maxime Villard (2017) |
|---|
| 5 | * |
|---|
| 6 | * Copyright (c) UPMC Sorbonne Universites |
|---|
| 7 | * |
|---|
| 8 | * This file is part of ALMOS-kernel. |
|---|
| 9 | * |
|---|
| 10 | * ALMOS-kernel is free software; you can redistribute it and/or modify it |
|---|
| 11 | * under the terms of the GNU General Public License as published by |
|---|
| 12 | * the Free Software Foundation; version 2.0 of the License. |
|---|
| 13 | * |
|---|
| 14 | * ALMOS-kernel is distributed in the hope that it will be useful, but |
|---|
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 17 | * General Public License for more details. |
|---|
| 18 | * |
|---|
| 19 | * You should have received a copy of the GNU General Public License |
|---|
| 20 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
|---|
| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|---|
| 22 | */ |
|---|
| 23 | |
|---|
| 24 | /* |
|---|
| 25 | * %cr0 |
|---|
| 26 | */ |
|---|
| 27 | #define CR0_PE 0x00000001 /* Protected mode Enable */ |
|---|
| 28 | #define CR0_MP 0x00000002 /* "Math" Present (NPX or NPX emulator) */ |
|---|
| 29 | #define CR0_EM 0x00000004 /* EMulate non-NPX coproc. (trap ESC only) */ |
|---|
| 30 | #define CR0_TS 0x00000008 /* Task Switched (if MP, trap ESC and WAIT) */ |
|---|
| 31 | #define CR0_ET 0x00000010 /* Extension Type (387 (if set) vs 287) */ |
|---|
| 32 | #define CR0_NE 0x00000020 /* Numeric Error enable (EX16 vs IRQ13) */ |
|---|
| 33 | #define CR0_WP 0x00010000 /* Write Protect (honor PG_RW in all modes) */ |
|---|
| 34 | #define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */ |
|---|
| 35 | #define CR0_NW 0x20000000 /* Not Write-through */ |
|---|
| 36 | #define CR0_CD 0x40000000 /* Cache Disable */ |
|---|
| 37 | #define CR0_PG 0x80000000 /* PaGing enable */ |
|---|
| 38 | |
|---|
| 39 | /* |
|---|
| 40 | * %cr4 |
|---|
| 41 | */ |
|---|
| 42 | #define CR4_VME 0x00000001 /* virtual 8086 mode extension enable */ |
|---|
| 43 | #define CR4_PVI 0x00000002 /* protected mode virtual interrupt enable */ |
|---|
| 44 | #define CR4_TSD 0x00000004 /* restrict RDTSC instruction to cpl 0 */ |
|---|
| 45 | #define CR4_DE 0x00000008 /* debugging extension */ |
|---|
| 46 | #define CR4_PSE 0x00000010 /* large (4MB) page size enable */ |
|---|
| 47 | #define CR4_PAE 0x00000020 /* physical address extension enable */ |
|---|
| 48 | #define CR4_MCE 0x00000040 /* machine check enable */ |
|---|
| 49 | #define CR4_PGE 0x00000080 /* page global enable */ |
|---|
| 50 | #define CR4_PCE 0x00000100 /* enable RDPMC instruction for all cpls */ |
|---|
| 51 | #define CR4_OSFXSR 0x00000200 /* enable fxsave/fxrestor and SSE */ |
|---|
| 52 | #define CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */ |
|---|
| 53 | #define CR4_UMIP 0x00000800 /* user-mode instruction prevention */ |
|---|
| 54 | #define CR4_VMXE 0x00002000 /* enable VMX operations */ |
|---|
| 55 | #define CR4_SMXE 0x00004000 /* enable SMX operations */ |
|---|
| 56 | #define CR4_FSGSBASE 0x00010000 /* enable *FSBASE and *GSBASE instructions */ |
|---|
| 57 | #define CR4_PCIDE 0x00020000 /* enable Process Context IDentifiers */ |
|---|
| 58 | #define CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */ |
|---|
| 59 | #define CR4_SMEP 0x00100000 /* enable SMEP support */ |
|---|
| 60 | #define CR4_SMAP 0x00200000 /* enable SMAP support */ |
|---|
| 61 | #define CR4_PKE 0x00400000 /* protection key enable */ |
|---|
| 62 | |
|---|
| 63 | /* |
|---|
| 64 | * MSRs |
|---|
| 65 | */ |
|---|
| 66 | #define MSR_EFER 0xc0000080 /* Extended feature enable */ |
|---|
| 67 | #define EFER_SCE 0x00000001 /* SYSCALL extension */ |
|---|
| 68 | #define EFER_LME 0x00000100 /* Long Mode Active */ |
|---|
| 69 | #define EFER_LMA 0x00000400 /* Long Mode Enabled */ |
|---|
| 70 | #define EFER_NXE 0x00000800 /* No-Execute Enabled */ |
|---|
| 71 | #define EFER_SVME 0x00001000 /* Secure Virtual Machine En. */ |
|---|
| 72 | #define EFER_LMSLE 0x00002000 /* Long Mode Segment Limit E. */ |
|---|
| 73 | #define EFER_FFXSR 0x00004000 /* Fast FXSAVE/FXRSTOR En. */ |
|---|
| 74 | #define EFER_TCE 0x00008000 /* Translation Cache Ext. */ |
|---|
| 75 | |
|---|
