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2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29 
 kernel/arch/x86/kernel/paravirt.c
....@@ -1,19 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*  Paravirtualization interfaces
23     Copyright (C) 2006 Rusty Russell IBM Corporation
34 
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
175 
186     2007 - x86_64 support added by Glauber de Oliveira Costa, Red Hat Inc
197 */
....@@ -25,13 +13,13 @@
2513 #include <linux/bcd.h>
2614 #include <linux/highmem.h>
2715 #include <linux/kprobes.h>
16
+#include <linux/pgtable.h>
2817 
2918 #include <asm/bug.h>
3019 #include <asm/paravirt.h>
3120 #include <asm/debugreg.h>
3221 #include <asm/desc.h>
3322 #include <asm/setup.h>
34
-#include <asm/pgtable.h>
3523 #include <asm/time.h>
3624 #include <asm/pgalloc.h>
3725 #include <asm/irq.h>
....@@ -42,6 +30,7 @@
4230 #include <asm/timer.h>
4331 #include <asm/special_insns.h>
4432 #include <asm/tlb.h>
33
+#include <asm/io_bitmap.h>
4534 
4635 /*
4736  * nop stub, which must not clobber anything *including the stack* to
....@@ -51,21 +40,10 @@
5140 asm (".pushsection .entry.text, \"ax\"\n"
5241      ".global _paravirt_nop\n"
5342      "_paravirt_nop:\n\t"
54
-     "ret\n\t"
43
+     ASM_RET
5544      ".size _paravirt_nop, . - _paravirt_nop\n\t"
5645      ".type _paravirt_nop, @function\n\t"
5746      ".popsection");
58
-
59
-/* identity function, which can be inlined */
60
-u32 notrace _paravirt_ident_32(u32 x)
61
-{
62
-	return x;
63
-}
64
-
65
-u64 notrace _paravirt_ident_64(u64 x)
66
-{
67
-	return x;
68
-}
6947 
7048 void __init default_banner(void)
7149 {
....@@ -81,32 +59,37 @@
8159 	u32 delta;
8260 } __attribute__((packed));
8361 
84
-unsigned paravirt_patch_call(void *insnbuf,
85
-			     const void *target, u16 tgt_clobbers,
86
-			     unsigned long addr, u16 site_clobbers,
87
-			     unsigned len)
62
+static unsigned paravirt_patch_call(void *insn_buff, const void *target,
63
+				    unsigned long addr, unsigned len)
8864 {
89
-	struct branch *b = insnbuf;
90
-	unsigned long delta = (unsigned long)target - (addr+5);
65
+	const int call_len = 5;
66
+	struct branch *b = insn_buff;
67
+	unsigned long delta = (unsigned long)target - (addr+call_len);
9168 
92
-	if (len < 5) {
93
-#ifdef CONFIG_RETPOLINE
94
-		WARN_ONCE(1, "Failing to patch indirect CALL in %ps\n", (void *)addr);
95
-#endif
96
-		return len;	/* call too long for patch site */
69
+	if (len < call_len) {
70
+		pr_warn("paravirt: Failed to patch indirect CALL at %ps\n", (void *)addr);
71
+		/* Kernel might not be viable if patching fails, bail out: */
72
+		BUG_ON(1);
9773 	}
9874 
9975 	b->opcode = 0xe8; /* call */
10076 	b->delta = delta;
101
-	BUILD_BUG_ON(sizeof(*b) != 5);
77
+	BUILD_BUG_ON(sizeof(*b) != call_len);
10278 
103
-	return 5;
79
+	return call_len;
10480 }
10581 
106
-unsigned paravirt_patch_jmp(void *insnbuf, const void *target,
107
-			    unsigned long addr, unsigned len)
82
+#ifdef CONFIG_PARAVIRT_XXL
83
+/* identity function, which can be inlined */
84
+u64 notrace _paravirt_ident_64(u64 x)
10885 {
109
-	struct branch *b = insnbuf;
86
+	return x;
87
+}
88
+
89
+static unsigned paravirt_patch_jmp(void *insn_buff, const void *target,
90
+				   unsigned long addr, unsigned len)
91
+{
92
+	struct branch *b = insn_buff;
11093 	unsigned long delta = (unsigned long)target - (addr+5);
11194 
11295 	if (len < 5) {
....@@ -121,95 +104,60 @@
121104 
122105 	return 5;
123106 }
107
+#endif
124108 
125109 DEFINE_STATIC_KEY_TRUE(virt_spin_lock_key);
126110 
127111 void __init native_pv_lock_init(void)
128112 {
129
-	if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
113
+	if (!boot_cpu_has(X86_FEATURE_HYPERVISOR))
130114 		static_branch_disable(&virt_spin_lock_key);
131115 }
132116 
133
-/*
134
- * Neat trick to map patch type back to the call within the
135
- * corresponding structure.
136
- */
137
-static void *get_call_destination(u8 type)
138
-{
139
-	struct paravirt_patch_template tmpl = {
140
-		.pv_init_ops = pv_init_ops,
141
-		.pv_time_ops = pv_time_ops,
142
-		.pv_cpu_ops = pv_cpu_ops,
143
-		.pv_irq_ops = pv_irq_ops,
144
-		.pv_mmu_ops = pv_mmu_ops,
145
-#ifdef CONFIG_PARAVIRT_SPINLOCKS
146
-		.pv_lock_ops = pv_lock_ops,
147
-#endif
148
-	};
149
-	return *((void **)&tmpl + type);
150
-}
151
-
152
-unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
117
+unsigned paravirt_patch_default(u8 type, void *insn_buff,
153118 				unsigned long addr, unsigned len)
154119 {
155
-	void *opfunc = get_call_destination(type);
120
+	/*
121
+	 * Neat trick to map patch type back to the call within the
122
+	 * corresponding structure.
123
+	 */
124
+	void *opfunc = *((void **)&pv_ops + type);
156125 	unsigned ret;
157126 
158127 	if (opfunc == NULL)
159128 		/* If there's no function, patch it with a ud2a (BUG) */
160
-		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
129
+		ret = paravirt_patch_insns(insn_buff, len, ud2a, ud2a+sizeof(ud2a));
161130 	else if (opfunc == _paravirt_nop)
162131 		ret = 0;
163132 
133
+#ifdef CONFIG_PARAVIRT_XXL
164134 	/* identity functions just return their single argument */
165
-	else if (opfunc == _paravirt_ident_32)
166
-		ret = paravirt_patch_ident_32(insnbuf, len);
167135 	else if (opfunc == _paravirt_ident_64)
168
-		ret = paravirt_patch_ident_64(insnbuf, len);
136
+		ret = paravirt_patch_ident_64(insn_buff, len);
169137 
170
-	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
171
-		 type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret64))
138
+	else if (type == PARAVIRT_PATCH(cpu.iret) ||
139
+		 type == PARAVIRT_PATCH(cpu.usergs_sysret64))
172140 		/* If operation requires a jmp, then jmp */
173
-		ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len);
141
+		ret = paravirt_patch_jmp(insn_buff, opfunc, addr, len);
142
+#endif
174143 	else
175
-		/* Otherwise call the function; assume target could
176
-		   clobber any caller-save reg */
177
-		ret = paravirt_patch_call(insnbuf, opfunc, CLBR_ANY,
178
-					  addr, clobbers, len);
144
+		/* Otherwise call the function. */
145
+		ret = paravirt_patch_call(insn_buff, opfunc, addr, len);
179146 
180147 	return ret;
181148 }
182149 
183
-unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
150
+unsigned paravirt_patch_insns(void *insn_buff, unsigned len,
184151 			      const char *start, const char *end)
185152 {
186153 	unsigned insn_len = end - start;
187154 
188
-	if (insn_len > len || start == NULL)
189
-		insn_len = len;
190
-	else
191
-		memcpy(insnbuf, start, insn_len);
155
+	/* Alternative instruction is too large for the patch site and we cannot continue: */
156
+	BUG_ON(insn_len > len || start == NULL);
157
+
158
+	memcpy(insn_buff, start, insn_len);
192159 
193160 	return insn_len;
194
-}
195
-
196
-static void native_flush_tlb(void)
197
-{
198
-	__native_flush_tlb();
199
-}
200
-
201
-/*
202
- * Global pages have to be flushed a bit differently. Not a real
203
- * performance problem because this does not happen often.
204
- */
205
-static void native_flush_tlb_global(void)
206
-{
207
-	__native_flush_tlb_global();
208
-}
209
-
210
-static void native_flush_tlb_one_user(unsigned long addr)
211
-{
212
-	__native_flush_tlb_one_user(addr);
213161 }
214162 
215163 struct static_key paravirt_steal_enabled;
....@@ -281,6 +229,7 @@
281229 	preempt_enable();
282230 }
283231 
232
+#ifdef CONFIG_PARAVIRT_XXL
284233 void paravirt_start_context_switch(struct task_struct *prev)
285234 {
286235 	BUG_ON(preemptible());
....@@ -301,6 +250,7 @@
301250 	if (test_and_clear_ti_thread_flag(task_thread_info(next), TIF_LAZY_MMU_UPDATES))
302251 		arch_enter_lazy_mmu_mode();
303252 }
253
+#endif
304254 
305255 enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
306256 {
....@@ -312,172 +262,163 @@
312262 
313263 struct pv_info pv_info = {
314264 	.name = "bare hardware",
315
-	.kernel_rpl = 0,
316
-	.shared_kernel_pmd = 1,	/* Only used when CONFIG_X86_PAE is set */
317
-
318
-#ifdef CONFIG_X86_64
265
+#ifdef CONFIG_PARAVIRT_XXL
319266 	.extra_user_64bit_cs = __USER_CS,
320267 #endif
321268 };
322269 
323
-struct pv_init_ops pv_init_ops = {
324
-	.patch = native_patch,
325
-};
270
+/* 64-bit pagetable entries */
271
+#define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_64)
326272 
327
-struct pv_time_ops pv_time_ops = {
328
-	.sched_clock = native_sched_clock,
329
-	.steal_clock = native_steal_clock,
330
-};
273
+struct paravirt_patch_template pv_ops = {
274
+	/* Init ops. */
275
+	.init.patch		= native_patch,
331276 
332
-__visible struct pv_irq_ops pv_irq_ops = {
333
-	.save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
334
-	.restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
335
-	.irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
336
-	.irq_enable = __PV_IS_CALLEE_SAVE(native_irq_enable),
337
-	.safe_halt = native_safe_halt,
338
-	.halt = native_halt,
339
-};
277
+	/* Time ops. */
278
+	.time.sched_clock	= native_sched_clock,
279
+	.time.steal_clock	= native_steal_clock,
340280 
341
-__visible struct pv_cpu_ops pv_cpu_ops = {
342
-	.cpuid = native_cpuid,
343
-	.get_debugreg = native_get_debugreg,
344
-	.set_debugreg = native_set_debugreg,
345
-	.read_cr0 = native_read_cr0,
346
-	.write_cr0 = native_write_cr0,
347
-	.write_cr4 = native_write_cr4,
348
-#ifdef CONFIG_X86_64
349
-	.read_cr8 = native_read_cr8,
350
-	.write_cr8 = native_write_cr8,
281
+	/* Cpu ops. */
282
+	.cpu.io_delay		= native_io_delay,
283
+
284
+#ifdef CONFIG_PARAVIRT_XXL
285
+	.cpu.cpuid		= native_cpuid,
286
+	.cpu.get_debugreg	= native_get_debugreg,
287
+	.cpu.set_debugreg	= native_set_debugreg,
288
+	.cpu.read_cr0		= native_read_cr0,
289
+	.cpu.write_cr0		= native_write_cr0,
290
+	.cpu.write_cr4		= native_write_cr4,
291
+	.cpu.wbinvd		= native_wbinvd,
292
+	.cpu.read_msr		= native_read_msr,
293
+	.cpu.write_msr		= native_write_msr,
294
+	.cpu.read_msr_safe	= native_read_msr_safe,
295
+	.cpu.write_msr_safe	= native_write_msr_safe,
296
+	.cpu.read_pmc		= native_read_pmc,
297
+	.cpu.load_tr_desc	= native_load_tr_desc,
298
+	.cpu.set_ldt		= native_set_ldt,
299
+	.cpu.load_gdt		= native_load_gdt,
300
+	.cpu.load_idt		= native_load_idt,
301
+	.cpu.store_tr		= native_store_tr,
302
+	.cpu.load_tls		= native_load_tls,
303
+	.cpu.load_gs_index	= native_load_gs_index,
304
+	.cpu.write_ldt_entry	= native_write_ldt_entry,
305
+	.cpu.write_gdt_entry	= native_write_gdt_entry,
306
+	.cpu.write_idt_entry	= native_write_idt_entry,
307
+
308
+	.cpu.alloc_ldt		= paravirt_nop,
309
+	.cpu.free_ldt		= paravirt_nop,
310
+
311
+	.cpu.load_sp0		= native_load_sp0,
312
+
313
+	.cpu.usergs_sysret64	= native_usergs_sysret64,
314
+	.cpu.iret		= native_iret,
315
+
316
+#ifdef CONFIG_X86_IOPL_IOPERM
317
+	.cpu.invalidate_io_bitmap	= native_tss_invalidate_io_bitmap,
318
+	.cpu.update_io_bitmap		= native_tss_update_io_bitmap,
351319 #endif
352
-	.wbinvd = native_wbinvd,
353
-	.read_msr = native_read_msr,
354
-	.write_msr = native_write_msr,
355
-	.read_msr_safe = native_read_msr_safe,
356
-	.write_msr_safe = native_write_msr_safe,
357
-	.read_pmc = native_read_pmc,
358
-	.load_tr_desc = native_load_tr_desc,
359
-	.set_ldt = native_set_ldt,
360
-	.load_gdt = native_load_gdt,
361
-	.load_idt = native_load_idt,
362
-	.store_tr = native_store_tr,
363
-	.load_tls = native_load_tls,
364
-#ifdef CONFIG_X86_64
365
-	.load_gs_index = native_load_gs_index,
320
+
321
+	.cpu.start_context_switch	= paravirt_nop,
322
+	.cpu.end_context_switch		= paravirt_nop,
323
+
324
+	/* Irq ops. */
325
+	.irq.save_fl		= __PV_IS_CALLEE_SAVE(native_save_fl),
326
+	.irq.restore_fl		= __PV_IS_CALLEE_SAVE(native_restore_fl),
327
+	.irq.irq_disable	= __PV_IS_CALLEE_SAVE(native_irq_disable),
328
+	.irq.irq_enable		= __PV_IS_CALLEE_SAVE(native_irq_enable),
329
+	.irq.safe_halt		= native_safe_halt,
330
+	.irq.halt		= native_halt,
331
+#endif /* CONFIG_PARAVIRT_XXL */
332
+
333
+	/* Mmu ops. */
334
+	.mmu.flush_tlb_user	= native_flush_tlb_local,
335
+	.mmu.flush_tlb_kernel	= native_flush_tlb_global,
336
+	.mmu.flush_tlb_one_user	= native_flush_tlb_one_user,
337
+	.mmu.flush_tlb_others	= native_flush_tlb_others,
338
+	.mmu.tlb_remove_table	=
339
+			(void (*)(struct mmu_gather *, void *))tlb_remove_page,
340
+
341
+	.mmu.exit_mmap		= paravirt_nop,
342
+
343
+#ifdef CONFIG_PARAVIRT_XXL
344
+	.mmu.read_cr2		= __PV_IS_CALLEE_SAVE(native_read_cr2),
345
+	.mmu.write_cr2		= native_write_cr2,
346
+	.mmu.read_cr3		= __native_read_cr3,
347
+	.mmu.write_cr3		= native_write_cr3,
348
+
349
+	.mmu.pgd_alloc		= __paravirt_pgd_alloc,
350
+	.mmu.pgd_free		= paravirt_nop,
351
+
352
+	.mmu.alloc_pte		= paravirt_nop,
353
+	.mmu.alloc_pmd		= paravirt_nop,
354
+	.mmu.alloc_pud		= paravirt_nop,
355
+	.mmu.alloc_p4d		= paravirt_nop,
356
+	.mmu.release_pte	= paravirt_nop,
357
+	.mmu.release_pmd	= paravirt_nop,
358
+	.mmu.release_pud	= paravirt_nop,
359
+	.mmu.release_p4d	= paravirt_nop,
360
+
361
+	.mmu.set_pte		= native_set_pte,
362
+	.mmu.set_pmd		= native_set_pmd,
363
+
364
+	.mmu.ptep_modify_prot_start	= __ptep_modify_prot_start,
365
+	.mmu.ptep_modify_prot_commit	= __ptep_modify_prot_commit,
366
+
367
+	.mmu.set_pud		= native_set_pud,
368
+
369
+	.mmu.pmd_val		= PTE_IDENT,
370
+	.mmu.make_pmd		= PTE_IDENT,
371
+
372
+	.mmu.pud_val		= PTE_IDENT,
373
+	.mmu.make_pud		= PTE_IDENT,
374
+
375
+	.mmu.set_p4d		= native_set_p4d,
376
+
377
+#if CONFIG_PGTABLE_LEVELS >= 5
378
+	.mmu.p4d_val		= PTE_IDENT,
379
+	.mmu.make_p4d		= PTE_IDENT,
380
+
381
+	.mmu.set_pgd		= native_set_pgd,
382
+#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
383
+
384
+	.mmu.pte_val		= PTE_IDENT,
385
+	.mmu.pgd_val		= PTE_IDENT,
386
+
387
+	.mmu.make_pte		= PTE_IDENT,
388
+	.mmu.make_pgd		= PTE_IDENT,
389
+
390
+	.mmu.dup_mmap		= paravirt_nop,
391
+	.mmu.activate_mm	= paravirt_nop,
392
+
393
+	.mmu.lazy_mode = {
394
+		.enter		= paravirt_nop,
395
+		.leave		= paravirt_nop,
396
+		.flush		= paravirt_nop,
397
+	},
398
+
399
+	.mmu.set_fixmap		= native_set_fixmap,
400
+#endif /* CONFIG_PARAVIRT_XXL */
401
+
402
+#if defined(CONFIG_PARAVIRT_SPINLOCKS)
403
+	/* Lock ops. */
404
+#ifdef CONFIG_SMP
405
+	.lock.queued_spin_lock_slowpath	= native_queued_spin_lock_slowpath,
406
+	.lock.queued_spin_unlock	=
407
+				PV_CALLEE_SAVE(__native_queued_spin_unlock),
408
+	.lock.wait			= paravirt_nop,
409
+	.lock.kick			= paravirt_nop,
410
+	.lock.vcpu_is_preempted		=
411
+				PV_CALLEE_SAVE(__native_vcpu_is_preempted),
412
+#endif /* SMP */
366413 #endif
367
-	.write_ldt_entry = native_write_ldt_entry,
368
-	.write_gdt_entry = native_write_gdt_entry,
369
-	.write_idt_entry = native_write_idt_entry,
370
-
371
-	.alloc_ldt = paravirt_nop,
372
-	.free_ldt = paravirt_nop,
373
-
374
-	.load_sp0 = native_load_sp0,
375
-
376
-#ifdef CONFIG_X86_64
377
-	.usergs_sysret64 = native_usergs_sysret64,
378
-#endif
379
-	.iret = native_iret,
380
-	.swapgs = native_swapgs,
381
-
382
-	.set_iopl_mask = native_set_iopl_mask,
383
-	.io_delay = native_io_delay,
384
-
385
-	.start_context_switch = paravirt_nop,
386
-	.end_context_switch = paravirt_nop,
387414 };
388415 
416
+#ifdef CONFIG_PARAVIRT_XXL
389417 /* At this point, native_get/set_debugreg has real function entries */
390418 NOKPROBE_SYMBOL(native_get_debugreg);
391419 NOKPROBE_SYMBOL(native_set_debugreg);
392420 NOKPROBE_SYMBOL(native_load_idt);
393
-
394
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
395
-/* 32-bit pagetable entries */
396
-#define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_32)
397
-#else
398
-/* 64-bit pagetable entries */
399
-#define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_64)
400421 #endif
401422 
402
-struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
403
-
404
-	.read_cr2 = native_read_cr2,
405
-	.write_cr2 = native_write_cr2,
406
-	.read_cr3 = __native_read_cr3,
407
-	.write_cr3 = native_write_cr3,
408
-
409
-	.flush_tlb_user = native_flush_tlb,
410
-	.flush_tlb_kernel = native_flush_tlb_global,
411
-	.flush_tlb_one_user = native_flush_tlb_one_user,
412
-	.flush_tlb_others = native_flush_tlb_others,
413
-	.tlb_remove_table = (void (*)(struct mmu_gather *, void *))tlb_remove_page,
414
-
415
-	.pgd_alloc = __paravirt_pgd_alloc,
416
-	.pgd_free = paravirt_nop,
417
-
418
-	.alloc_pte = paravirt_nop,
419
-	.alloc_pmd = paravirt_nop,
420
-	.alloc_pud = paravirt_nop,
421
-	.alloc_p4d = paravirt_nop,
422
-	.release_pte = paravirt_nop,
423
-	.release_pmd = paravirt_nop,
424
-	.release_pud = paravirt_nop,
425
-	.release_p4d = paravirt_nop,
426
-
427
-	.set_pte = native_set_pte,
428
-	.set_pte_at = native_set_pte_at,
429
-	.set_pmd = native_set_pmd,
430
-
431
-	.ptep_modify_prot_start = __ptep_modify_prot_start,
432
-	.ptep_modify_prot_commit = __ptep_modify_prot_commit,
433
-
434
-#if CONFIG_PGTABLE_LEVELS >= 3
435
-#ifdef CONFIG_X86_PAE
436
-	.set_pte_atomic = native_set_pte_atomic,
437
-	.pte_clear = native_pte_clear,
438
-	.pmd_clear = native_pmd_clear,
439
-#endif
440
-	.set_pud = native_set_pud,
441
-
442
-	.pmd_val = PTE_IDENT,
443
-	.make_pmd = PTE_IDENT,
444
-
445
-#if CONFIG_PGTABLE_LEVELS >= 4
446
-	.pud_val = PTE_IDENT,
447
-	.make_pud = PTE_IDENT,
448
-
449
-	.set_p4d = native_set_p4d,
450
-
451
-#if CONFIG_PGTABLE_LEVELS >= 5
452
-	.p4d_val = PTE_IDENT,
453
-	.make_p4d = PTE_IDENT,
454
-
455
-	.set_pgd = native_set_pgd,
456
-#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
457
-#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
458
-#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
459
-
460
-	.pte_val = PTE_IDENT,
461
-	.pgd_val = PTE_IDENT,
462
-
463
-	.make_pte = PTE_IDENT,
464
-	.make_pgd = PTE_IDENT,
465
-
466
-	.dup_mmap = paravirt_nop,
467
-	.exit_mmap = paravirt_nop,
468
-	.activate_mm = paravirt_nop,
469
-
470
-	.lazy_mode = {
471
-		.enter = paravirt_nop,
472
-		.leave = paravirt_nop,
473
-		.flush = paravirt_nop,
474
-	},
475
-
476
-	.set_fixmap = native_set_fixmap,
477
-};
478
-
479
-EXPORT_SYMBOL_GPL(pv_time_ops);
480
-EXPORT_SYMBOL    (pv_cpu_ops);
481
-EXPORT_SYMBOL    (pv_mmu_ops);
423
+EXPORT_SYMBOL(pv_ops);
482424 EXPORT_SYMBOL_GPL(pv_info);
483
-EXPORT_SYMBOL    (pv_irq_ops);