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d3561b7f RR |
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 | |
b1df07bd GOC |
17 | |
18 | 2007 - x86_64 support added by Glauber de Oliveira Costa, Red Hat Inc | |
d3561b7f | 19 | */ |
b1df07bd | 20 | |
d3561b7f RR |
21 | #include <linux/errno.h> |
22 | #include <linux/module.h> | |
23 | #include <linux/efi.h> | |
24 | #include <linux/bcd.h> | |
ce6234b5 | 25 | #include <linux/highmem.h> |
d3561b7f RR |
26 | |
27 | #include <asm/bug.h> | |
28 | #include <asm/paravirt.h> | |
50af5ead | 29 | #include <asm/debugreg.h> |
d3561b7f RR |
30 | #include <asm/desc.h> |
31 | #include <asm/setup.h> | |
a312b37b | 32 | #include <asm/pgtable.h> |
d3561b7f | 33 | #include <asm/time.h> |
eba0045f | 34 | #include <asm/pgalloc.h> |
d3561b7f RR |
35 | #include <asm/irq.h> |
36 | #include <asm/delay.h> | |
13623d79 RR |
37 | #include <asm/fixmap.h> |
38 | #include <asm/apic.h> | |
da181a8b | 39 | #include <asm/tlbflush.h> |
6cb9a835 | 40 | #include <asm/timer.h> |
f05e798a | 41 | #include <asm/special_insns.h> |
d3561b7f RR |
42 | |
43 | /* nop stub */ | |
45876233 | 44 | void _paravirt_nop(void) |
d3561b7f RR |
45 | { |
46 | } | |
47 | ||
41edafdb JF |
48 | /* identity function, which can be inlined */ |
49 | u32 _paravirt_ident_32(u32 x) | |
50 | { | |
51 | return x; | |
52 | } | |
53 | ||
54 | u64 _paravirt_ident_64(u64 x) | |
55 | { | |
56 | return x; | |
57 | } | |
58 | ||
6f30c1ac | 59 | void __init default_banner(void) |
d3561b7f RR |
60 | { |
61 | printk(KERN_INFO "Booting paravirtualized kernel on %s\n", | |
93b1eab3 | 62 | pv_info.name); |
d3561b7f RR |
63 | } |
64 | ||
139ec7c4 | 65 | /* Simple instruction patching code. */ |
93b1eab3 JF |
66 | #define DEF_NATIVE(ops, name, code) \ |
67 | extern const char start_##ops##_##name[], end_##ops##_##name[]; \ | |
68 | asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":") | |
69 | ||
93b1eab3 JF |
70 | /* Undefined instruction for dealing with missing ops pointers. */ |
71 | static const unsigned char ud2a[] = { 0x0f, 0x0b }; | |
139ec7c4 | 72 | |
63f70270 JF |
73 | unsigned paravirt_patch_nop(void) |
74 | { | |
75 | return 0; | |
76 | } | |
77 | ||
78 | unsigned paravirt_patch_ignore(unsigned len) | |
79 | { | |
80 | return len; | |
81 | } | |
82 | ||
19d36ccd AK |
83 | struct branch { |
84 | unsigned char opcode; | |
85 | u32 delta; | |
86 | } __attribute__((packed)); | |
87 | ||
ab144f5e AK |
88 | unsigned paravirt_patch_call(void *insnbuf, |
89 | const void *target, u16 tgt_clobbers, | |
90 | unsigned long addr, u16 site_clobbers, | |
63f70270 JF |
91 | unsigned len) |
92 | { | |
ab144f5e AK |
93 | struct branch *b = insnbuf; |
94 | unsigned long delta = (unsigned long)target - (addr+5); | |
63f70270 JF |
95 | |
96 | if (tgt_clobbers & ~site_clobbers) | |
97 | return len; /* target would clobber too much for this site */ | |
98 | if (len < 5) | |
99 | return len; /* call too long for patch site */ | |
139ec7c4 | 100 | |
ab144f5e AK |
101 | b->opcode = 0xe8; /* call */ |
102 | b->delta = delta; | |
103 | BUILD_BUG_ON(sizeof(*b) != 5); | |
139ec7c4 | 104 | |
63f70270 JF |
105 | return 5; |
106 | } | |
107 | ||
93b1eab3 | 108 | unsigned paravirt_patch_jmp(void *insnbuf, const void *target, |
ab144f5e | 109 | unsigned long addr, unsigned len) |
63f70270 | 110 | { |
ab144f5e AK |
111 | struct branch *b = insnbuf; |
112 | unsigned long delta = (unsigned long)target - (addr+5); | |
63f70270 JF |
113 | |
114 | if (len < 5) | |
115 | return len; /* call too long for patch site */ | |
116 | ||
ab144f5e AK |
117 | b->opcode = 0xe9; /* jmp */ |
118 | b->delta = delta; | |
63f70270 JF |
119 | |
120 | return 5; | |
121 | } | |
122 | ||
93b1eab3 JF |
123 | /* Neat trick to map patch type back to the call within the |
124 | * corresponding structure. */ | |
125 | static void *get_call_destination(u8 type) | |
126 | { | |
127 | struct paravirt_patch_template tmpl = { | |
128 | .pv_init_ops = pv_init_ops, | |
93b1eab3 JF |
129 | .pv_time_ops = pv_time_ops, |
130 | .pv_cpu_ops = pv_cpu_ops, | |
131 | .pv_irq_ops = pv_irq_ops, | |
132 | .pv_apic_ops = pv_apic_ops, | |
133 | .pv_mmu_ops = pv_mmu_ops, | |
b4ecc126 | 134 | #ifdef CONFIG_PARAVIRT_SPINLOCKS |
74d4affd | 135 | .pv_lock_ops = pv_lock_ops, |
b4ecc126 | 136 | #endif |
93b1eab3 JF |
137 | }; |
138 | return *((void **)&tmpl + type); | |
139 | } | |
140 | ||
ab144f5e AK |
141 | unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf, |
142 | unsigned long addr, unsigned len) | |
63f70270 | 143 | { |
93b1eab3 | 144 | void *opfunc = get_call_destination(type); |
63f70270 JF |
145 | unsigned ret; |
146 | ||
147 | if (opfunc == NULL) | |
148 | /* If there's no function, patch it with a ud2a (BUG) */ | |
93b1eab3 | 149 | ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a)); |
41edafdb | 150 | else if (opfunc == _paravirt_nop) |
63f70270 JF |
151 | /* If the operation is a nop, then nop the callsite */ |
152 | ret = paravirt_patch_nop(); | |
41edafdb JF |
153 | |
154 | /* identity functions just return their single argument */ | |
155 | else if (opfunc == _paravirt_ident_32) | |
156 | ret = paravirt_patch_ident_32(insnbuf, len); | |
157 | else if (opfunc == _paravirt_ident_64) | |
158 | ret = paravirt_patch_ident_64(insnbuf, len); | |
159 | ||
93b1eab3 | 160 | else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || |
d75cd22f | 161 | type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) || |
2be29982 JF |
162 | type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret32) || |
163 | type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret64)) | |
63f70270 | 164 | /* If operation requires a jmp, then jmp */ |
93b1eab3 | 165 | ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len); |
63f70270 JF |
166 | else |
167 | /* Otherwise call the function; assume target could | |
168 | clobber any caller-save reg */ | |
ab144f5e AK |
169 | ret = paravirt_patch_call(insnbuf, opfunc, CLBR_ANY, |
170 | addr, clobbers, len); | |
63f70270 JF |
171 | |
172 | return ret; | |
173 | } | |
174 | ||
ab144f5e | 175 | unsigned paravirt_patch_insns(void *insnbuf, unsigned len, |
63f70270 JF |
176 | const char *start, const char *end) |
177 | { | |
178 | unsigned insn_len = end - start; | |
139ec7c4 | 179 | |
63f70270 JF |
180 | if (insn_len > len || start == NULL) |
181 | insn_len = len; | |
182 | else | |
ab144f5e | 183 | memcpy(insnbuf, start, insn_len); |
139ec7c4 | 184 | |
139ec7c4 RR |
185 | return insn_len; |
186 | } | |
187 | ||
1a1eecd1 | 188 | static void native_flush_tlb(void) |
da181a8b RR |
189 | { |
190 | __native_flush_tlb(); | |
191 | } | |
192 | ||
193 | /* | |
194 | * Global pages have to be flushed a bit differently. Not a real | |
195 | * performance problem because this does not happen often. | |
196 | */ | |
1a1eecd1 | 197 | static void native_flush_tlb_global(void) |
da181a8b RR |
198 | { |
199 | __native_flush_tlb_global(); | |
200 | } | |
201 | ||
63f70270 | 202 | static void native_flush_tlb_single(unsigned long addr) |
da181a8b RR |
203 | { |
204 | __native_flush_tlb_single(addr); | |
205 | } | |
206 | ||
c5905afb IM |
207 | struct static_key paravirt_steal_enabled; |
208 | struct static_key paravirt_steal_rq_enabled; | |
3c404b57 GC |
209 | |
210 | static u64 native_steal_clock(int cpu) | |
211 | { | |
212 | return 0; | |
213 | } | |
214 | ||
d3561b7f | 215 | /* These are in entry.S */ |
1a1eecd1 | 216 | extern void native_iret(void); |
d75cd22f | 217 | extern void native_irq_enable_sysexit(void); |
2be29982 JF |
218 | extern void native_usergs_sysret32(void); |
219 | extern void native_usergs_sysret64(void); | |
d3561b7f | 220 | |
d572929c JF |
221 | static struct resource reserve_ioports = { |
222 | .start = 0, | |
223 | .end = IO_SPACE_LIMIT, | |
224 | .name = "paravirt-ioport", | |
225 | .flags = IORESOURCE_IO | IORESOURCE_BUSY, | |
226 | }; | |
227 | ||
d572929c JF |
228 | /* |
229 | * Reserve the whole legacy IO space to prevent any legacy drivers | |
230 | * from wasting time probing for their hardware. This is a fairly | |
231 | * brute-force approach to disabling all non-virtual drivers. | |
232 | * | |
233 | * Note that this must be called very early to have any effect. | |
234 | */ | |
235 | int paravirt_disable_iospace(void) | |
236 | { | |
f7743fe6 | 237 | return request_resource(&ioport_resource, &reserve_ioports); |
d572929c JF |
238 | } |
239 | ||
8965c1c0 JF |
240 | static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE; |
241 | ||
242 | static inline void enter_lazy(enum paravirt_lazy_mode mode) | |
243 | { | |
c6ae41e7 | 244 | BUG_ON(this_cpu_read(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE); |
8965c1c0 | 245 | |
c6ae41e7 | 246 | this_cpu_write(paravirt_lazy_mode, mode); |
8965c1c0 JF |
247 | } |
248 | ||
b407fc57 | 249 | static void leave_lazy(enum paravirt_lazy_mode mode) |
8965c1c0 | 250 | { |
c6ae41e7 | 251 | BUG_ON(this_cpu_read(paravirt_lazy_mode) != mode); |
8965c1c0 | 252 | |
c6ae41e7 | 253 | this_cpu_write(paravirt_lazy_mode, PARAVIRT_LAZY_NONE); |
8965c1c0 JF |
254 | } |
255 | ||
256 | void paravirt_enter_lazy_mmu(void) | |
257 | { | |
258 | enter_lazy(PARAVIRT_LAZY_MMU); | |
259 | } | |
260 | ||
261 | void paravirt_leave_lazy_mmu(void) | |
262 | { | |
b407fc57 | 263 | leave_lazy(PARAVIRT_LAZY_MMU); |
8965c1c0 JF |
264 | } |
265 | ||
511ba86e BO |
266 | void paravirt_flush_lazy_mmu(void) |
267 | { | |
268 | preempt_disable(); | |
269 | ||
270 | if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) { | |
271 | arch_leave_lazy_mmu_mode(); | |
272 | arch_enter_lazy_mmu_mode(); | |
273 | } | |
274 | ||
275 | preempt_enable(); | |
276 | } | |
277 | ||
224101ed | 278 | void paravirt_start_context_switch(struct task_struct *prev) |
8965c1c0 | 279 | { |
2829b449 JF |
280 | BUG_ON(preemptible()); |
281 | ||
c6ae41e7 | 282 | if (this_cpu_read(paravirt_lazy_mode) == PARAVIRT_LAZY_MMU) { |
b407fc57 | 283 | arch_leave_lazy_mmu_mode(); |
224101ed | 284 | set_ti_thread_flag(task_thread_info(prev), TIF_LAZY_MMU_UPDATES); |
b407fc57 | 285 | } |
8965c1c0 JF |
286 | enter_lazy(PARAVIRT_LAZY_CPU); |
287 | } | |
288 | ||
224101ed | 289 | void paravirt_end_context_switch(struct task_struct *next) |
8965c1c0 | 290 | { |
2829b449 JF |
291 | BUG_ON(preemptible()); |
292 | ||
b407fc57 JF |
293 | leave_lazy(PARAVIRT_LAZY_CPU); |
294 | ||
224101ed | 295 | if (test_and_clear_ti_thread_flag(task_thread_info(next), TIF_LAZY_MMU_UPDATES)) |
b407fc57 | 296 | arch_enter_lazy_mmu_mode(); |
8965c1c0 JF |
297 | } |
298 | ||
299 | enum paravirt_lazy_mode paravirt_get_lazy_mode(void) | |
300 | { | |
b8bcfe99 JF |
301 | if (in_interrupt()) |
302 | return PARAVIRT_LAZY_NONE; | |
303 | ||
c6ae41e7 | 304 | return this_cpu_read(paravirt_lazy_mode); |
8965c1c0 JF |
305 | } |
306 | ||
93b1eab3 | 307 | struct pv_info pv_info = { |
d3561b7f RR |
308 | .name = "bare hardware", |
309 | .paravirt_enabled = 0, | |
310 | .kernel_rpl = 0, | |
5311ab62 | 311 | .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ |
318f5a2a AL |
312 | |
313 | #ifdef CONFIG_X86_64 | |
314 | .extra_user_64bit_cs = __USER_CS, | |
315 | #endif | |
93b1eab3 | 316 | }; |
d3561b7f | 317 | |
93b1eab3 JF |
318 | struct pv_init_ops pv_init_ops = { |
319 | .patch = native_patch, | |
93b1eab3 JF |
320 | }; |
321 | ||
322 | struct pv_time_ops pv_time_ops = { | |
93b1eab3 | 323 | .sched_clock = native_sched_clock, |
3c404b57 | 324 | .steal_clock = native_steal_clock, |
93b1eab3 JF |
325 | }; |
326 | ||
327 | struct pv_irq_ops pv_irq_ops = { | |
ecb93d1c JF |
328 | .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), |
329 | .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), | |
330 | .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable), | |
331 | .irq_enable = __PV_IS_CALLEE_SAVE(native_irq_enable), | |
93b1eab3 JF |
332 | .safe_halt = native_safe_halt, |
333 | .halt = native_halt, | |
fab58420 JF |
334 | #ifdef CONFIG_X86_64 |
335 | .adjust_exception_frame = paravirt_nop, | |
336 | #endif | |
93b1eab3 | 337 | }; |
d3561b7f | 338 | |
93b1eab3 | 339 | struct pv_cpu_ops pv_cpu_ops = { |
d3561b7f RR |
340 | .cpuid = native_cpuid, |
341 | .get_debugreg = native_get_debugreg, | |
342 | .set_debugreg = native_set_debugreg, | |
343 | .clts = native_clts, | |
344 | .read_cr0 = native_read_cr0, | |
345 | .write_cr0 = native_write_cr0, | |
d3561b7f RR |
346 | .read_cr4 = native_read_cr4, |
347 | .read_cr4_safe = native_read_cr4_safe, | |
348 | .write_cr4 = native_write_cr4, | |
88b4755f GOC |
349 | #ifdef CONFIG_X86_64 |
350 | .read_cr8 = native_read_cr8, | |
351 | .write_cr8 = native_write_cr8, | |
352 | #endif | |
d3561b7f | 353 | .wbinvd = native_wbinvd, |
90a0a06a RR |
354 | .read_msr = native_read_msr_safe, |
355 | .write_msr = native_write_msr_safe, | |
d3561b7f RR |
356 | .read_tsc = native_read_tsc, |
357 | .read_pmc = native_read_pmc, | |
e5aaac44 | 358 | .read_tscp = native_read_tscp, |
d3561b7f RR |
359 | .load_tr_desc = native_load_tr_desc, |
360 | .set_ldt = native_set_ldt, | |
361 | .load_gdt = native_load_gdt, | |
362 | .load_idt = native_load_idt, | |
d3561b7f RR |
363 | .store_idt = native_store_idt, |
364 | .store_tr = native_store_tr, | |
365 | .load_tls = native_load_tls, | |
9f9d489a JF |
366 | #ifdef CONFIG_X86_64 |
367 | .load_gs_index = native_load_gs_index, | |
368 | #endif | |
75b8bb3e | 369 | .write_ldt_entry = native_write_ldt_entry, |
014b15be | 370 | .write_gdt_entry = native_write_gdt_entry, |
8d947344 | 371 | .write_idt_entry = native_write_idt_entry, |
38ffbe66 JF |
372 | |
373 | .alloc_ldt = paravirt_nop, | |
374 | .free_ldt = paravirt_nop, | |
375 | ||
faca6227 | 376 | .load_sp0 = native_load_sp0, |
d3561b7f | 377 | |
102d0a4b | 378 | #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) |
d75cd22f | 379 | .irq_enable_sysexit = native_irq_enable_sysexit, |
102d0a4b | 380 | #endif |
2be29982 | 381 | #ifdef CONFIG_X86_64 |
102d0a4b | 382 | #ifdef CONFIG_IA32_EMULATION |
2be29982 | 383 | .usergs_sysret32 = native_usergs_sysret32, |
102d0a4b | 384 | #endif |
2be29982 | 385 | .usergs_sysret64 = native_usergs_sysret64, |
d75cd22f | 386 | #endif |
93b1eab3 | 387 | .iret = native_iret, |
e801f864 | 388 | .swapgs = native_swapgs, |
93b1eab3 | 389 | |
d3561b7f RR |
390 | .set_iopl_mask = native_set_iopl_mask, |
391 | .io_delay = native_io_delay, | |
8965c1c0 | 392 | |
224101ed JF |
393 | .start_context_switch = paravirt_nop, |
394 | .end_context_switch = paravirt_nop, | |
93b1eab3 | 395 | }; |
d3561b7f | 396 | |
93b1eab3 | 397 | struct pv_apic_ops pv_apic_ops = { |
13623d79 | 398 | #ifdef CONFIG_X86_LOCAL_APIC |
0260c196 | 399 | .startup_ipi_hook = paravirt_nop, |
13623d79 | 400 | #endif |
93b1eab3 JF |
401 | }; |
402 | ||
41edafdb JF |
403 | #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) |
404 | /* 32-bit pagetable entries */ | |
da5de7c2 | 405 | #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32) |
41edafdb JF |
406 | #else |
407 | /* 64-bit pagetable entries */ | |
da5de7c2 | 408 | #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) |
41edafdb JF |
409 | #endif |
410 | ||
93b1eab3 | 411 | struct pv_mmu_ops pv_mmu_ops = { |
b239fb25 | 412 | |
93b1eab3 JF |
413 | .read_cr2 = native_read_cr2, |
414 | .write_cr2 = native_write_cr2, | |
415 | .read_cr3 = native_read_cr3, | |
416 | .write_cr3 = native_write_cr3, | |
417 | ||
da181a8b RR |
418 | .flush_tlb_user = native_flush_tlb, |
419 | .flush_tlb_kernel = native_flush_tlb_global, | |
420 | .flush_tlb_single = native_flush_tlb_single, | |
d4c10477 | 421 | .flush_tlb_others = native_flush_tlb_others, |
da181a8b | 422 | |
eba0045f JF |
423 | .pgd_alloc = __paravirt_pgd_alloc, |
424 | .pgd_free = paravirt_nop, | |
425 | ||
6944a9c8 JF |
426 | .alloc_pte = paravirt_nop, |
427 | .alloc_pmd = paravirt_nop, | |
2761fa09 | 428 | .alloc_pud = paravirt_nop, |
6944a9c8 JF |
429 | .release_pte = paravirt_nop, |
430 | .release_pmd = paravirt_nop, | |
2761fa09 | 431 | .release_pud = paravirt_nop, |
c119ecce | 432 | |
da181a8b RR |
433 | .set_pte = native_set_pte, |
434 | .set_pte_at = native_set_pte_at, | |
435 | .set_pmd = native_set_pmd, | |
331127f7 | 436 | .set_pmd_at = native_set_pmd_at, |
45876233 JF |
437 | .pte_update = paravirt_nop, |
438 | .pte_update_defer = paravirt_nop, | |
331127f7 AA |
439 | .pmd_update = paravirt_nop, |
440 | .pmd_update_defer = paravirt_nop, | |
3dc494e8 | 441 | |
08b882c6 JF |
442 | .ptep_modify_prot_start = __ptep_modify_prot_start, |
443 | .ptep_modify_prot_commit = __ptep_modify_prot_commit, | |
444 | ||
f95f2f7b | 445 | #if PAGETABLE_LEVELS >= 3 |
da181a8b RR |
446 | #ifdef CONFIG_X86_PAE |
447 | .set_pte_atomic = native_set_pte_atomic, | |
da181a8b RR |
448 | .pte_clear = native_pte_clear, |
449 | .pmd_clear = native_pmd_clear, | |
f95f2f7b EH |
450 | #endif |
451 | .set_pud = native_set_pud, | |
da5de7c2 JF |
452 | |
453 | .pmd_val = PTE_IDENT, | |
454 | .make_pmd = PTE_IDENT, | |
f95f2f7b EH |
455 | |
456 | #if PAGETABLE_LEVELS == 4 | |
da5de7c2 JF |
457 | .pud_val = PTE_IDENT, |
458 | .make_pud = PTE_IDENT, | |
459 | ||
f95f2f7b | 460 | .set_pgd = native_set_pgd, |
da181a8b | 461 | #endif |
f95f2f7b | 462 | #endif /* PAGETABLE_LEVELS >= 3 */ |
da181a8b | 463 | |
da5de7c2 JF |
464 | .pte_val = PTE_IDENT, |
465 | .pgd_val = PTE_IDENT, | |
3dc494e8 | 466 | |
da5de7c2 JF |
467 | .make_pte = PTE_IDENT, |
468 | .make_pgd = PTE_IDENT, | |
3dc494e8 | 469 | |
d6dd61c8 JF |
470 | .dup_mmap = paravirt_nop, |
471 | .exit_mmap = paravirt_nop, | |
472 | .activate_mm = paravirt_nop, | |
8965c1c0 JF |
473 | |
474 | .lazy_mode = { | |
475 | .enter = paravirt_nop, | |
476 | .leave = paravirt_nop, | |
511ba86e | 477 | .flush = paravirt_nop, |
8965c1c0 | 478 | }, |
aeaaa59c JF |
479 | |
480 | .set_fixmap = native_set_fixmap, | |
d3561b7f | 481 | }; |
0dbe5a11 | 482 | |
93b1eab3 | 483 | EXPORT_SYMBOL_GPL(pv_time_ops); |
f97b8954 JF |
484 | EXPORT_SYMBOL (pv_cpu_ops); |
485 | EXPORT_SYMBOL (pv_mmu_ops); | |
93b1eab3 JF |
486 | EXPORT_SYMBOL_GPL(pv_apic_ops); |
487 | EXPORT_SYMBOL_GPL(pv_info); | |
488 | EXPORT_SYMBOL (pv_irq_ops); |