Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 1 | /* Paravirtualization interfaces |
| 2 | Copyright (C) 2006 Rusty Russell IBM Corporation |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 2 of the License, or |
| 7 | (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Glauber de Oliveira Costa | b1df07b | 2008-01-30 13:32:04 +0100 | [diff] [blame] | 17 | |
| 18 | 2007 - x86_64 support added by Glauber de Oliveira Costa, Red Hat Inc |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 19 | */ |
Glauber de Oliveira Costa | b1df07b | 2008-01-30 13:32:04 +0100 | [diff] [blame] | 20 | |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 21 | #include <linux/errno.h> |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/efi.h> |
| 24 | #include <linux/bcd.h> |
Jeremy Fitzhardinge | ce6234b | 2007-05-02 19:27:15 +0200 | [diff] [blame] | 25 | #include <linux/highmem.h> |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 26 | |
| 27 | #include <asm/bug.h> |
| 28 | #include <asm/paravirt.h> |
| 29 | #include <asm/desc.h> |
| 30 | #include <asm/setup.h> |
| 31 | #include <asm/arch_hooks.h> |
Eduardo Habkost | a312b37 | 2008-07-08 15:06:23 -0700 | [diff] [blame] | 32 | #include <asm/pgtable.h> |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 33 | #include <asm/time.h> |
Jeremy Fitzhardinge | eba0045 | 2008-06-25 00:19:12 -0400 | [diff] [blame] | 34 | #include <asm/pgalloc.h> |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 35 | #include <asm/irq.h> |
| 36 | #include <asm/delay.h> |
Rusty Russell | 13623d7 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 37 | #include <asm/fixmap.h> |
| 38 | #include <asm/apic.h> |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 39 | #include <asm/tlbflush.h> |
Zachary Amsden | 6cb9a83 | 2007-03-05 00:30:35 -0800 | [diff] [blame] | 40 | #include <asm/timer.h> |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 41 | |
| 42 | /* nop stub */ |
Jeremy Fitzhardinge | 4587623 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 43 | void _paravirt_nop(void) |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 44 | { |
| 45 | } |
| 46 | |
| 47 | static void __init default_banner(void) |
| 48 | { |
| 49 | printk(KERN_INFO "Booting paravirtualized kernel on %s\n", |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 50 | pv_info.name); |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | char *memory_setup(void) |
| 54 | { |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 55 | return pv_init_ops.memory_setup(); |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 56 | } |
| 57 | |
Rusty Russell | 139ec7c | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 58 | /* Simple instruction patching code. */ |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 59 | #define DEF_NATIVE(ops, name, code) \ |
| 60 | extern const char start_##ops##_##name[], end_##ops##_##name[]; \ |
| 61 | asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":") |
Rusty Russell | 139ec7c | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 62 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 63 | /* Undefined instruction for dealing with missing ops pointers. */ |
| 64 | static const unsigned char ud2a[] = { 0x0f, 0x0b }; |
Rusty Russell | 139ec7c | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 65 | |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 66 | unsigned paravirt_patch_nop(void) |
| 67 | { |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | unsigned paravirt_patch_ignore(unsigned len) |
| 72 | { |
| 73 | return len; |
| 74 | } |
| 75 | |
Andi Kleen | 19d36cc | 2007-07-22 11:12:31 +0200 | [diff] [blame] | 76 | struct branch { |
| 77 | unsigned char opcode; |
| 78 | u32 delta; |
| 79 | } __attribute__((packed)); |
| 80 | |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 81 | unsigned paravirt_patch_call(void *insnbuf, |
| 82 | const void *target, u16 tgt_clobbers, |
| 83 | unsigned long addr, u16 site_clobbers, |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 84 | unsigned len) |
| 85 | { |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 86 | struct branch *b = insnbuf; |
| 87 | unsigned long delta = (unsigned long)target - (addr+5); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 88 | |
| 89 | if (tgt_clobbers & ~site_clobbers) |
| 90 | return len; /* target would clobber too much for this site */ |
| 91 | if (len < 5) |
| 92 | return len; /* call too long for patch site */ |
| 93 | |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 94 | b->opcode = 0xe8; /* call */ |
| 95 | b->delta = delta; |
| 96 | BUILD_BUG_ON(sizeof(*b) != 5); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 97 | |
| 98 | return 5; |
| 99 | } |
| 100 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 101 | unsigned paravirt_patch_jmp(void *insnbuf, const void *target, |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 102 | unsigned long addr, unsigned len) |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 103 | { |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 104 | struct branch *b = insnbuf; |
| 105 | unsigned long delta = (unsigned long)target - (addr+5); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 106 | |
| 107 | if (len < 5) |
| 108 | return len; /* call too long for patch site */ |
| 109 | |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 110 | b->opcode = 0xe9; /* jmp */ |
| 111 | b->delta = delta; |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 112 | |
| 113 | return 5; |
| 114 | } |
| 115 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 116 | /* Neat trick to map patch type back to the call within the |
| 117 | * corresponding structure. */ |
| 118 | static void *get_call_destination(u8 type) |
| 119 | { |
| 120 | struct paravirt_patch_template tmpl = { |
| 121 | .pv_init_ops = pv_init_ops, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 122 | .pv_time_ops = pv_time_ops, |
| 123 | .pv_cpu_ops = pv_cpu_ops, |
| 124 | .pv_irq_ops = pv_irq_ops, |
| 125 | .pv_apic_ops = pv_apic_ops, |
| 126 | .pv_mmu_ops = pv_mmu_ops, |
Jeremy Fitzhardinge | 74d4aff | 2008-07-07 12:07:50 -0700 | [diff] [blame] | 127 | .pv_lock_ops = pv_lock_ops, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 128 | }; |
| 129 | return *((void **)&tmpl + type); |
| 130 | } |
| 131 | |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 132 | unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf, |
| 133 | unsigned long addr, unsigned len) |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 134 | { |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 135 | void *opfunc = get_call_destination(type); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 136 | unsigned ret; |
| 137 | |
| 138 | if (opfunc == NULL) |
| 139 | /* If there's no function, patch it with a ud2a (BUG) */ |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 140 | ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a)); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 141 | else if (opfunc == paravirt_nop) |
| 142 | /* If the operation is a nop, then nop the callsite */ |
| 143 | ret = paravirt_patch_nop(); |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 144 | else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || |
Jeremy Fitzhardinge | d75cd22 | 2008-06-25 00:19:26 -0400 | [diff] [blame] | 145 | type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) || |
Jeremy Fitzhardinge | 2be2998 | 2008-06-25 00:19:28 -0400 | [diff] [blame] | 146 | type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret32) || |
| 147 | type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret64)) |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 148 | /* If operation requires a jmp, then jmp */ |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 149 | ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 150 | else |
| 151 | /* Otherwise call the function; assume target could |
| 152 | clobber any caller-save reg */ |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 153 | ret = paravirt_patch_call(insnbuf, opfunc, CLBR_ANY, |
| 154 | addr, clobbers, len); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 155 | |
| 156 | return ret; |
| 157 | } |
| 158 | |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 159 | unsigned paravirt_patch_insns(void *insnbuf, unsigned len, |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 160 | const char *start, const char *end) |
| 161 | { |
| 162 | unsigned insn_len = end - start; |
| 163 | |
| 164 | if (insn_len > len || start == NULL) |
| 165 | insn_len = len; |
| 166 | else |
Andi Kleen | ab144f5 | 2007-08-10 22:31:03 +0200 | [diff] [blame] | 167 | memcpy(insnbuf, start, insn_len); |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 168 | |
Rusty Russell | 139ec7c | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 169 | return insn_len; |
| 170 | } |
| 171 | |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 172 | void init_IRQ(void) |
| 173 | { |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 174 | pv_irq_ops.init_IRQ(); |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 175 | } |
| 176 | |
Andi Kleen | 1a1eecd | 2007-02-13 13:26:25 +0100 | [diff] [blame] | 177 | static void native_flush_tlb(void) |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 178 | { |
| 179 | __native_flush_tlb(); |
| 180 | } |
| 181 | |
| 182 | /* |
| 183 | * Global pages have to be flushed a bit differently. Not a real |
| 184 | * performance problem because this does not happen often. |
| 185 | */ |
Andi Kleen | 1a1eecd | 2007-02-13 13:26:25 +0100 | [diff] [blame] | 186 | static void native_flush_tlb_global(void) |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 187 | { |
| 188 | __native_flush_tlb_global(); |
| 189 | } |
| 190 | |
Jeremy Fitzhardinge | 63f7027 | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 191 | static void native_flush_tlb_single(unsigned long addr) |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 192 | { |
| 193 | __native_flush_tlb_single(addr); |
| 194 | } |
| 195 | |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 196 | /* These are in entry.S */ |
Andi Kleen | 1a1eecd | 2007-02-13 13:26:25 +0100 | [diff] [blame] | 197 | extern void native_iret(void); |
Jeremy Fitzhardinge | d75cd22 | 2008-06-25 00:19:26 -0400 | [diff] [blame] | 198 | extern void native_irq_enable_sysexit(void); |
Jeremy Fitzhardinge | 2be2998 | 2008-06-25 00:19:28 -0400 | [diff] [blame] | 199 | extern void native_usergs_sysret32(void); |
| 200 | extern void native_usergs_sysret64(void); |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 201 | |
| 202 | static int __init print_banner(void) |
| 203 | { |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 204 | pv_init_ops.banner(); |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 205 | return 0; |
| 206 | } |
| 207 | core_initcall(print_banner); |
| 208 | |
Jeremy Fitzhardinge | d572929 | 2007-07-17 18:37:04 -0700 | [diff] [blame] | 209 | static struct resource reserve_ioports = { |
| 210 | .start = 0, |
| 211 | .end = IO_SPACE_LIMIT, |
| 212 | .name = "paravirt-ioport", |
| 213 | .flags = IORESOURCE_IO | IORESOURCE_BUSY, |
| 214 | }; |
| 215 | |
Jeremy Fitzhardinge | d572929 | 2007-07-17 18:37:04 -0700 | [diff] [blame] | 216 | /* |
| 217 | * Reserve the whole legacy IO space to prevent any legacy drivers |
| 218 | * from wasting time probing for their hardware. This is a fairly |
| 219 | * brute-force approach to disabling all non-virtual drivers. |
| 220 | * |
| 221 | * Note that this must be called very early to have any effect. |
| 222 | */ |
| 223 | int paravirt_disable_iospace(void) |
| 224 | { |
Jeremy Fitzhardinge | f7743fe | 2008-03-27 17:28:40 -0700 | [diff] [blame] | 225 | return request_resource(&ioport_resource, &reserve_ioports); |
Jeremy Fitzhardinge | d572929 | 2007-07-17 18:37:04 -0700 | [diff] [blame] | 226 | } |
| 227 | |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 228 | static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE; |
| 229 | |
| 230 | static inline void enter_lazy(enum paravirt_lazy_mode mode) |
| 231 | { |
Glauber de Oliveira Costa | bfd074e | 2008-01-30 13:32:11 +0100 | [diff] [blame] | 232 | BUG_ON(__get_cpu_var(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE); |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 233 | BUG_ON(preemptible()); |
| 234 | |
Glauber de Oliveira Costa | bfd074e | 2008-01-30 13:32:11 +0100 | [diff] [blame] | 235 | __get_cpu_var(paravirt_lazy_mode) = mode; |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 236 | } |
| 237 | |
| 238 | void paravirt_leave_lazy(enum paravirt_lazy_mode mode) |
| 239 | { |
Glauber de Oliveira Costa | bfd074e | 2008-01-30 13:32:11 +0100 | [diff] [blame] | 240 | BUG_ON(__get_cpu_var(paravirt_lazy_mode) != mode); |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 241 | BUG_ON(preemptible()); |
| 242 | |
Glauber de Oliveira Costa | bfd074e | 2008-01-30 13:32:11 +0100 | [diff] [blame] | 243 | __get_cpu_var(paravirt_lazy_mode) = PARAVIRT_LAZY_NONE; |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | void paravirt_enter_lazy_mmu(void) |
| 247 | { |
| 248 | enter_lazy(PARAVIRT_LAZY_MMU); |
| 249 | } |
| 250 | |
| 251 | void paravirt_leave_lazy_mmu(void) |
| 252 | { |
| 253 | paravirt_leave_lazy(PARAVIRT_LAZY_MMU); |
| 254 | } |
| 255 | |
| 256 | void paravirt_enter_lazy_cpu(void) |
| 257 | { |
| 258 | enter_lazy(PARAVIRT_LAZY_CPU); |
| 259 | } |
| 260 | |
| 261 | void paravirt_leave_lazy_cpu(void) |
| 262 | { |
| 263 | paravirt_leave_lazy(PARAVIRT_LAZY_CPU); |
| 264 | } |
| 265 | |
| 266 | enum paravirt_lazy_mode paravirt_get_lazy_mode(void) |
| 267 | { |
Glauber de Oliveira Costa | bfd074e | 2008-01-30 13:32:11 +0100 | [diff] [blame] | 268 | return __get_cpu_var(paravirt_lazy_mode); |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 269 | } |
| 270 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 271 | struct pv_info pv_info = { |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 272 | .name = "bare hardware", |
| 273 | .paravirt_enabled = 0, |
| 274 | .kernel_rpl = 0, |
Jeremy Fitzhardinge | 5311ab6 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 275 | .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 276 | }; |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 277 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 278 | struct pv_init_ops pv_init_ops = { |
| 279 | .patch = native_patch, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 280 | .banner = default_banner, |
Jeremy Fitzhardinge | 4587623 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 281 | .arch_setup = paravirt_nop, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 282 | .memory_setup = machine_specific_memory_setup, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 283 | }; |
| 284 | |
| 285 | struct pv_time_ops pv_time_ops = { |
| 286 | .time_init = hpet_time_init, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 287 | .get_wallclock = native_get_wallclock, |
| 288 | .set_wallclock = native_set_wallclock, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 289 | .sched_clock = native_sched_clock, |
Alok Kataria | e93ef94 | 2008-07-01 11:43:36 -0700 | [diff] [blame] | 290 | .get_tsc_khz = native_calibrate_tsc, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 291 | }; |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 292 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 293 | struct pv_irq_ops pv_irq_ops = { |
| 294 | .init_IRQ = native_init_IRQ, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 295 | .save_fl = native_save_fl, |
| 296 | .restore_fl = native_restore_fl, |
| 297 | .irq_disable = native_irq_disable, |
| 298 | .irq_enable = native_irq_enable, |
| 299 | .safe_halt = native_safe_halt, |
| 300 | .halt = native_halt, |
Jeremy Fitzhardinge | fab5842 | 2008-06-25 00:19:31 -0400 | [diff] [blame] | 301 | #ifdef CONFIG_X86_64 |
| 302 | .adjust_exception_frame = paravirt_nop, |
| 303 | #endif |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 304 | }; |
| 305 | |
| 306 | struct pv_cpu_ops pv_cpu_ops = { |
| 307 | .cpuid = native_cpuid, |
| 308 | .get_debugreg = native_get_debugreg, |
| 309 | .set_debugreg = native_set_debugreg, |
| 310 | .clts = native_clts, |
| 311 | .read_cr0 = native_read_cr0, |
| 312 | .write_cr0 = native_write_cr0, |
| 313 | .read_cr4 = native_read_cr4, |
| 314 | .read_cr4_safe = native_read_cr4_safe, |
| 315 | .write_cr4 = native_write_cr4, |
Glauber de Oliveira Costa | 88b4755 | 2008-01-30 13:33:19 +0100 | [diff] [blame] | 316 | #ifdef CONFIG_X86_64 |
| 317 | .read_cr8 = native_read_cr8, |
| 318 | .write_cr8 = native_write_cr8, |
| 319 | #endif |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 320 | .wbinvd = native_wbinvd, |
Rusty Russell | 90a0a06 | 2007-05-02 19:27:10 +0200 | [diff] [blame] | 321 | .read_msr = native_read_msr_safe, |
Yinghai Lu | b05f78f | 2008-08-22 01:32:50 -0700 | [diff] [blame] | 322 | .read_msr_amd = native_read_msr_amd_safe, |
Rusty Russell | 90a0a06 | 2007-05-02 19:27:10 +0200 | [diff] [blame] | 323 | .write_msr = native_write_msr_safe, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 324 | .read_tsc = native_read_tsc, |
| 325 | .read_pmc = native_read_pmc, |
Glauber de Oliveira Costa | e5aaac4 | 2008-01-30 13:32:05 +0100 | [diff] [blame] | 326 | .read_tscp = native_read_tscp, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 327 | .load_tr_desc = native_load_tr_desc, |
| 328 | .set_ldt = native_set_ldt, |
| 329 | .load_gdt = native_load_gdt, |
| 330 | .load_idt = native_load_idt, |
| 331 | .store_gdt = native_store_gdt, |
| 332 | .store_idt = native_store_idt, |
| 333 | .store_tr = native_store_tr, |
| 334 | .load_tls = native_load_tls, |
Jeremy Fitzhardinge | 9f9d489 | 2008-06-25 00:19:32 -0400 | [diff] [blame] | 335 | #ifdef CONFIG_X86_64 |
| 336 | .load_gs_index = native_load_gs_index, |
| 337 | #endif |
Glauber de Oliveira Costa | 75b8bb3 | 2008-01-30 13:31:13 +0100 | [diff] [blame] | 338 | .write_ldt_entry = native_write_ldt_entry, |
Glauber de Oliveira Costa | 014b15b | 2008-01-30 13:31:13 +0100 | [diff] [blame] | 339 | .write_gdt_entry = native_write_gdt_entry, |
Glauber de Oliveira Costa | 8d94734 | 2008-01-30 13:31:12 +0100 | [diff] [blame] | 340 | .write_idt_entry = native_write_idt_entry, |
Jeremy Fitzhardinge | 38ffbe6 | 2008-07-23 14:21:18 -0700 | [diff] [blame] | 341 | |
| 342 | .alloc_ldt = paravirt_nop, |
| 343 | .free_ldt = paravirt_nop, |
| 344 | |
H. Peter Anvin | faca622 | 2008-01-30 13:31:02 +0100 | [diff] [blame] | 345 | .load_sp0 = native_load_sp0, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 346 | |
Jeremy Fitzhardinge | 102d0a4 | 2008-06-30 11:10:53 -0700 | [diff] [blame] | 347 | #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) |
Jeremy Fitzhardinge | d75cd22 | 2008-06-25 00:19:26 -0400 | [diff] [blame] | 348 | .irq_enable_sysexit = native_irq_enable_sysexit, |
Jeremy Fitzhardinge | 102d0a4 | 2008-06-30 11:10:53 -0700 | [diff] [blame] | 349 | #endif |
Jeremy Fitzhardinge | 2be2998 | 2008-06-25 00:19:28 -0400 | [diff] [blame] | 350 | #ifdef CONFIG_X86_64 |
Jeremy Fitzhardinge | 102d0a4 | 2008-06-30 11:10:53 -0700 | [diff] [blame] | 351 | #ifdef CONFIG_IA32_EMULATION |
Jeremy Fitzhardinge | 2be2998 | 2008-06-25 00:19:28 -0400 | [diff] [blame] | 352 | .usergs_sysret32 = native_usergs_sysret32, |
Jeremy Fitzhardinge | 102d0a4 | 2008-06-30 11:10:53 -0700 | [diff] [blame] | 353 | #endif |
Jeremy Fitzhardinge | 2be2998 | 2008-06-25 00:19:28 -0400 | [diff] [blame] | 354 | .usergs_sysret64 = native_usergs_sysret64, |
Jeremy Fitzhardinge | d75cd22 | 2008-06-25 00:19:26 -0400 | [diff] [blame] | 355 | #endif |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 356 | .iret = native_iret, |
Glauber de Oliveira Costa | e801f86 | 2008-01-30 13:32:08 +0100 | [diff] [blame] | 357 | .swapgs = native_swapgs, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 358 | |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 359 | .set_iopl_mask = native_set_iopl_mask, |
| 360 | .io_delay = native_io_delay, |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 361 | |
| 362 | .lazy_mode = { |
| 363 | .enter = paravirt_nop, |
| 364 | .leave = paravirt_nop, |
| 365 | }, |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 366 | }; |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 367 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 368 | struct pv_apic_ops pv_apic_ops = { |
Rusty Russell | 13623d7 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 369 | #ifdef CONFIG_X86_LOCAL_APIC |
Zachary Amsden | bbab4f3 | 2007-02-13 13:26:21 +0100 | [diff] [blame] | 370 | .setup_boot_clock = setup_boot_APIC_clock, |
| 371 | .setup_secondary_clock = setup_secondary_APIC_clock, |
Jeremy Fitzhardinge | 0260c19 | 2007-05-02 19:27:18 +0200 | [diff] [blame] | 372 | .startup_ipi_hook = paravirt_nop, |
Rusty Russell | 13623d7 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 373 | #endif |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 374 | }; |
Rusty Russell | 13623d7 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 375 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 376 | struct pv_mmu_ops pv_mmu_ops = { |
Eduardo Habkost | d8dd8ee | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 377 | #ifndef CONFIG_X86_64 |
Jeremy Fitzhardinge | b239fb2 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 378 | .pagetable_setup_start = native_pagetable_setup_start, |
| 379 | .pagetable_setup_done = native_pagetable_setup_done, |
Eduardo Habkost | a312b37 | 2008-07-08 15:06:23 -0700 | [diff] [blame] | 380 | #else |
| 381 | .pagetable_setup_start = paravirt_nop, |
| 382 | .pagetable_setup_done = paravirt_nop, |
Eduardo Habkost | d8dd8ee | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 383 | #endif |
Jeremy Fitzhardinge | b239fb2 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 384 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 385 | .read_cr2 = native_read_cr2, |
| 386 | .write_cr2 = native_write_cr2, |
| 387 | .read_cr3 = native_read_cr3, |
| 388 | .write_cr3 = native_write_cr3, |
| 389 | |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 390 | .flush_tlb_user = native_flush_tlb, |
| 391 | .flush_tlb_kernel = native_flush_tlb_global, |
| 392 | .flush_tlb_single = native_flush_tlb_single, |
Jeremy Fitzhardinge | d4c1047 | 2007-05-02 19:27:15 +0200 | [diff] [blame] | 393 | .flush_tlb_others = native_flush_tlb_others, |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 394 | |
Jeremy Fitzhardinge | eba0045 | 2008-06-25 00:19:12 -0400 | [diff] [blame] | 395 | .pgd_alloc = __paravirt_pgd_alloc, |
| 396 | .pgd_free = paravirt_nop, |
| 397 | |
Jeremy Fitzhardinge | 6944a9c | 2008-03-17 16:37:01 -0700 | [diff] [blame] | 398 | .alloc_pte = paravirt_nop, |
| 399 | .alloc_pmd = paravirt_nop, |
| 400 | .alloc_pmd_clone = paravirt_nop, |
Jeremy Fitzhardinge | 2761fa0 | 2008-03-17 16:37:02 -0700 | [diff] [blame] | 401 | .alloc_pud = paravirt_nop, |
Jeremy Fitzhardinge | 6944a9c | 2008-03-17 16:37:01 -0700 | [diff] [blame] | 402 | .release_pte = paravirt_nop, |
| 403 | .release_pmd = paravirt_nop, |
Jeremy Fitzhardinge | 2761fa0 | 2008-03-17 16:37:02 -0700 | [diff] [blame] | 404 | .release_pud = paravirt_nop, |
Zachary Amsden | c119ecc | 2007-02-13 13:26:21 +0100 | [diff] [blame] | 405 | |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 406 | .set_pte = native_set_pte, |
| 407 | .set_pte_at = native_set_pte_at, |
| 408 | .set_pmd = native_set_pmd, |
Jeremy Fitzhardinge | 4587623 | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 409 | .pte_update = paravirt_nop, |
| 410 | .pte_update_defer = paravirt_nop, |
Jeremy Fitzhardinge | 3dc494e | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 411 | |
Jeremy Fitzhardinge | 08b882c | 2008-06-16 04:30:01 -0700 | [diff] [blame] | 412 | .ptep_modify_prot_start = __ptep_modify_prot_start, |
| 413 | .ptep_modify_prot_commit = __ptep_modify_prot_commit, |
| 414 | |
Jeremy Fitzhardinge | ce6234b | 2007-05-02 19:27:15 +0200 | [diff] [blame] | 415 | #ifdef CONFIG_HIGHPTE |
| 416 | .kmap_atomic_pte = kmap_atomic, |
| 417 | #endif |
| 418 | |
Eduardo Habkost | f95f2f7 | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 419 | #if PAGETABLE_LEVELS >= 3 |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 420 | #ifdef CONFIG_X86_PAE |
| 421 | .set_pte_atomic = native_set_pte_atomic, |
| 422 | .set_pte_present = native_set_pte_present, |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 423 | .pte_clear = native_pte_clear, |
| 424 | .pmd_clear = native_pmd_clear, |
Eduardo Habkost | f95f2f7 | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 425 | #endif |
| 426 | .set_pud = native_set_pud, |
Jeremy Fitzhardinge | 3dc494e | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 427 | .pmd_val = native_pmd_val, |
| 428 | .make_pmd = native_make_pmd, |
Eduardo Habkost | f95f2f7 | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 429 | |
| 430 | #if PAGETABLE_LEVELS == 4 |
| 431 | .pud_val = native_pud_val, |
| 432 | .make_pud = native_make_pud, |
| 433 | .set_pgd = native_set_pgd, |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 434 | #endif |
Eduardo Habkost | f95f2f7 | 2008-01-30 13:33:20 +0100 | [diff] [blame] | 435 | #endif /* PAGETABLE_LEVELS >= 3 */ |
Rusty Russell | da181a8 | 2006-12-07 02:14:08 +0100 | [diff] [blame] | 436 | |
Jeremy Fitzhardinge | 3dc494e | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 437 | .pte_val = native_pte_val, |
Rusty Russell | c2e3277 | 2008-07-22 15:40:46 +1000 | [diff] [blame] | 438 | .pte_flags = native_pte_flags, |
Jeremy Fitzhardinge | 3dc494e | 2007-05-02 19:27:13 +0200 | [diff] [blame] | 439 | .pgd_val = native_pgd_val, |
| 440 | |
| 441 | .make_pte = native_make_pte, |
| 442 | .make_pgd = native_make_pgd, |
| 443 | |
Jeremy Fitzhardinge | d6dd61c | 2007-05-02 19:27:14 +0200 | [diff] [blame] | 444 | .dup_mmap = paravirt_nop, |
| 445 | .exit_mmap = paravirt_nop, |
| 446 | .activate_mm = paravirt_nop, |
Jeremy Fitzhardinge | 8965c1c | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 447 | |
| 448 | .lazy_mode = { |
| 449 | .enter = paravirt_nop, |
| 450 | .leave = paravirt_nop, |
| 451 | }, |
Jeremy Fitzhardinge | aeaaa59 | 2008-06-17 11:42:01 -0700 | [diff] [blame] | 452 | |
| 453 | .set_fixmap = native_set_fixmap, |
Rusty Russell | d3561b7 | 2006-12-07 02:14:07 +0100 | [diff] [blame] | 454 | }; |
Ingo Molnar | 0dbe5a1 | 2007-01-22 20:40:36 -0800 | [diff] [blame] | 455 | |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 456 | EXPORT_SYMBOL_GPL(pv_time_ops); |
Jeremy Fitzhardinge | f97b895 | 2007-11-28 16:22:11 -0800 | [diff] [blame] | 457 | EXPORT_SYMBOL (pv_cpu_ops); |
| 458 | EXPORT_SYMBOL (pv_mmu_ops); |
Jeremy Fitzhardinge | 93b1eab | 2007-10-16 11:51:29 -0700 | [diff] [blame] | 459 | EXPORT_SYMBOL_GPL(pv_apic_ops); |
| 460 | EXPORT_SYMBOL_GPL(pv_info); |
| 461 | EXPORT_SYMBOL (pv_irq_ops); |