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KVM: Do not communicate to userspace through cpu registers during PIO
[mirror_ubuntu-hirsute-kernel.git] / drivers / kvm / svm.c
CommitLineData
6aa8b732
AK		 1/*
2 * Kernel-based Virtual Machine driver for Linux
3 *
4 * AMD SVM support
5 *
6 * Copyright (C) 2006 Qumranet, Inc.
7 *
8 * Authors:
9 * Yaniv Kamay <yaniv@qumranet.com>
10 * Avi Kivity <avi@qumranet.com>
11 *
12 * This work is licensed under the terms of the GNU GPL, version 2. See
13 * the COPYING file in the top-level directory.
14 *
15 */
16
17#include <linux/module.h>
9d8f549d 18#include <linux/kernel.h>
6aa8b732
AK		 19#include <linux/vmalloc.h>
20#include <linux/highmem.h>
07031e14 21#include <linux/profile.h>
6aa8b732
AK		 22#include <asm/desc.h>
23
24#include "kvm_svm.h"
25#include "x86_emulate.h"
26
27MODULE_AUTHOR("Qumranet");
28MODULE_LICENSE("GPL");
29
30#define IOPM_ALLOC_ORDER 2
31#define MSRPM_ALLOC_ORDER 1
32
33#define DB_VECTOR 1
34#define UD_VECTOR 6
35#define GP_VECTOR 13
36
37#define DR7_GD_MASK (1 << 13)
38#define DR6_BD_MASK (1 << 13)
39#define CR4_DE_MASK (1UL << 3)
40
41#define SEG_TYPE_LDT 2
42#define SEG_TYPE_BUSY_TSS16 3
43
44#define KVM_EFER_LMA (1 << 10)
45#define KVM_EFER_LME (1 << 8)
46
47unsigned long iopm_base;
48unsigned long msrpm_base;
49
50struct kvm_ldttss_desc {
51 u16 limit0;
52 u16 base0;
53 unsigned base1 : 8, type : 5, dpl : 2, p : 1;
54 unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
55 u32 base3;
56 u32 zero1;
57} __attribute__((packed));
58
59struct svm_cpu_data {
60 int cpu;
61
62 uint64_t asid_generation;
63 uint32_t max_asid;
64 uint32_t next_asid;
65 struct kvm_ldttss_desc *tss_desc;
66
67 struct page *save_area;
68};
69
70static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data);
71
72struct svm_init_data {
73 int cpu;
74 int r;
75};
76
77static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000};
78
9d8f549d 79#define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges)
6aa8b732
AK		 80#define MSRS_RANGE_SIZE 2048
81#define MSRS_IN_RANGE (MSRS_RANGE_SIZE * 8 / 2)
82
83#define MAX_INST_SIZE 15
84
85static unsigned get_addr_size(struct kvm_vcpu *vcpu)
86{
87 struct vmcb_save_area *sa = &vcpu->svm->vmcb->save;
88 u16 cs_attrib;
89
90 if (!(sa->cr0 & CR0_PE_MASK) || (sa->rflags & X86_EFLAGS_VM))
91 return 2;
92
93 cs_attrib = sa->cs.attrib;
94
95 return (cs_attrib & SVM_SELECTOR_L_MASK) ? 8 :
96 (cs_attrib & SVM_SELECTOR_DB_MASK) ? 4 : 2;
97}
98
99static inline u8 pop_irq(struct kvm_vcpu *vcpu)
100{
101 int word_index = __ffs(vcpu->irq_summary);
102 int bit_index = __ffs(vcpu->irq_pending[word_index]);
103 int irq = word_index * BITS_PER_LONG + bit_index;
104
105 clear_bit(bit_index, &vcpu->irq_pending[word_index]);
106 if (!vcpu->irq_pending[word_index])
107 clear_bit(word_index, &vcpu->irq_summary);
108 return irq;
109}
110
111static inline void push_irq(struct kvm_vcpu *vcpu, u8 irq)
112{
113 set_bit(irq, vcpu->irq_pending);
114 set_bit(irq / BITS_PER_LONG, &vcpu->irq_summary);
115}
116
117static inline void clgi(void)
118{
119 asm volatile (SVM_CLGI);
120}
121
122static inline void stgi(void)
123{
124 asm volatile (SVM_STGI);
125}
126
127static inline void invlpga(unsigned long addr, u32 asid)
128{
129 asm volatile (SVM_INVLPGA :: "a"(addr), "c"(asid));
130}
131
132static inline unsigned long kvm_read_cr2(void)
133{
134 unsigned long cr2;
135
136 asm volatile ("mov %%cr2, %0" : "=r" (cr2));
137 return cr2;
138}
139
140static inline void kvm_write_cr2(unsigned long val)
141{
142 asm volatile ("mov %0, %%cr2" :: "r" (val));
143}
144
145static inline unsigned long read_dr6(void)
146{
147 unsigned long dr6;
148
149 asm volatile ("mov %%dr6, %0" : "=r" (dr6));
150 return dr6;
151}
152
153static inline void write_dr6(unsigned long val)
154{
155 asm volatile ("mov %0, %%dr6" :: "r" (val));
156}
157
158static inline unsigned long read_dr7(void)
159{
160 unsigned long dr7;
161
162 asm volatile ("mov %%dr7, %0" : "=r" (dr7));
163 return dr7;
164}
165
166static inline void write_dr7(unsigned long val)
167{
168 asm volatile ("mov %0, %%dr7" :: "r" (val));
169}
170
6aa8b732
AK		 171static inline void force_new_asid(struct kvm_vcpu *vcpu)
172{
173 vcpu->svm->asid_generation--;
174}
175
176static inline void flush_guest_tlb(struct kvm_vcpu *vcpu)
177{
178 force_new_asid(vcpu);
179}
180
181static void svm_set_efer(struct kvm_vcpu *vcpu, u64 efer)
182{
183 if (!(efer & KVM_EFER_LMA))
184 efer &= ~KVM_EFER_LME;
185
186 vcpu->svm->vmcb->save.efer = efer | MSR_EFER_SVME_MASK;
187 vcpu->shadow_efer = efer;
188}
189
190static void svm_inject_gp(struct kvm_vcpu *vcpu, unsigned error_code)
191{
192 vcpu->svm->vmcb->control.event_inj = SVM_EVTINJ_VALID |
193 SVM_EVTINJ_VALID_ERR |
194 SVM_EVTINJ_TYPE_EXEPT |
195 GP_VECTOR;
196 vcpu->svm->vmcb->control.event_inj_err = error_code;
197}
198
199static void inject_ud(struct kvm_vcpu *vcpu)
200{
201 vcpu->svm->vmcb->control.event_inj = SVM_EVTINJ_VALID |
202 SVM_EVTINJ_TYPE_EXEPT |
203 UD_VECTOR;
204}
205
206static void inject_db(struct kvm_vcpu *vcpu)
207{
208 vcpu->svm->vmcb->control.event_inj = SVM_EVTINJ_VALID |
209 SVM_EVTINJ_TYPE_EXEPT |
210 DB_VECTOR;
211}
212
213static int is_page_fault(uint32_t info)
214{
215 info &= SVM_EVTINJ_VEC_MASK | SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID;
216 return info == (PF_VECTOR | SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_EXEPT);
217}
218
219static int is_external_interrupt(u32 info)
220{
221 info &= SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID;
222 return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR);
223}
224
225static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
226{
227 if (!vcpu->svm->next_rip) {
228 printk(KERN_DEBUG "%s: NOP\n", __FUNCTION__);
229 return;
230 }
231 if (vcpu->svm->next_rip - vcpu->svm->vmcb->save.rip > 15) {
232 printk(KERN_ERR "%s: ip 0x%llx next 0x%llx\n",
233 __FUNCTION__,
234 vcpu->svm->vmcb->save.rip,
235 vcpu->svm->next_rip);
236 }
237
238 vcpu->rip = vcpu->svm->vmcb->save.rip = vcpu->svm->next_rip;
239 vcpu->svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK;
c1150d8c
DL		 240
241 vcpu->interrupt_window_open = 1;
6aa8b732
AK		 242}
243
244static int has_svm(void)
245{
246 uint32_t eax, ebx, ecx, edx;
247
1e885461 248 if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
6aa8b732
AK		 249 printk(KERN_INFO "has_svm: not amd\n");
250 return 0;
251 }
252
253 cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
254 if (eax < SVM_CPUID_FUNC) {
255 printk(KERN_INFO "has_svm: can't execute cpuid_8000000a\n");
256 return 0;
257 }
258
259 cpuid(0x80000001, &eax, &ebx, &ecx, &edx);
260 if (!(ecx & (1 << SVM_CPUID_FEATURE_SHIFT))) {
261 printk(KERN_DEBUG "has_svm: svm not available\n");
262 return 0;
263 }
264 return 1;
265}
266
267static void svm_hardware_disable(void *garbage)
268{
269 struct svm_cpu_data *svm_data
270 = per_cpu(svm_data, raw_smp_processor_id());
271
272 if (svm_data) {
273 uint64_t efer;
274
275 wrmsrl(MSR_VM_HSAVE_PA, 0);
276 rdmsrl(MSR_EFER, efer);
277 wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
8b6d44c7 278 per_cpu(svm_data, raw_smp_processor_id()) = NULL;
6aa8b732
AK		 279 __free_page(svm_data->save_area);
280 kfree(svm_data);
281 }
282}
283
284static void svm_hardware_enable(void *garbage)
285{
286
287 struct svm_cpu_data *svm_data;
288 uint64_t efer;
05b3e0c2 289#ifdef CONFIG_X86_64
6aa8b732
AK		 290 struct desc_ptr gdt_descr;
291#else
292 struct Xgt_desc_struct gdt_descr;
293#endif
294 struct desc_struct *gdt;
295 int me = raw_smp_processor_id();
296
297 if (!has_svm()) {
298 printk(KERN_ERR "svm_cpu_init: err EOPNOTSUPP on %d\n", me);
299 return;
300 }
301 svm_data = per_cpu(svm_data, me);
302
303 if (!svm_data) {
304 printk(KERN_ERR "svm_cpu_init: svm_data is NULL on %d\n",
305 me);
306 return;
307 }
308
309 svm_data->asid_generation = 1;
310 svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1;
311 svm_data->next_asid = svm_data->max_asid + 1;
312
313 asm volatile ( "sgdt %0" : "=m"(gdt_descr) );
314 gdt = (struct desc_struct *)gdt_descr.address;
315 svm_data->tss_desc = (struct kvm_ldttss_desc *)(gdt + GDT_ENTRY_TSS);
316
317 rdmsrl(MSR_EFER, efer);
318 wrmsrl(MSR_EFER, efer | MSR_EFER_SVME_MASK);
319
320 wrmsrl(MSR_VM_HSAVE_PA,
321 page_to_pfn(svm_data->save_area) << PAGE_SHIFT);
322}
323
324static int svm_cpu_init(int cpu)
325{
326 struct svm_cpu_data *svm_data;
327 int r;
328
329 svm_data = kzalloc(sizeof(struct svm_cpu_data), GFP_KERNEL);
330 if (!svm_data)
331 return -ENOMEM;
332 svm_data->cpu = cpu;
333 svm_data->save_area = alloc_page(GFP_KERNEL);
334 r = -ENOMEM;
335 if (!svm_data->save_area)
336 goto err_1;
337
338 per_cpu(svm_data, cpu) = svm_data;
339
340 return 0;
341
342err_1:
343 kfree(svm_data);
344 return r;
345
346}
347
348static int set_msr_interception(u32 *msrpm, unsigned msr,
349 int read, int write)
350{
351 int i;
352
353 for (i = 0; i < NUM_MSR_MAPS; i++) {
354 if (msr >= msrpm_ranges[i] &&
355 msr < msrpm_ranges[i] + MSRS_IN_RANGE) {
356 u32 msr_offset = (i * MSRS_IN_RANGE + msr -
357 msrpm_ranges[i]) * 2;
358
359 u32 *base = msrpm + (msr_offset / 32);
360 u32 msr_shift = msr_offset % 32;
361 u32 mask = ((write) ? 0 : 2) | ((read) ? 0 : 1);
362 *base = (*base & ~(0x3 << msr_shift)) |
363 (mask << msr_shift);
364 return 1;
365 }
366 }
367 printk(KERN_DEBUG "%s: not found 0x%x\n", __FUNCTION__, msr);
368 return 0;
369}
370
371static __init int svm_hardware_setup(void)
372{
373 int cpu;
374 struct page *iopm_pages;
375 struct page *msrpm_pages;
376 void *msrpm_va;
377 int r;
378
873a7c42 379 kvm_emulator_want_group7_invlpg();
6aa8b732
AK		 380
381 iopm_pages = alloc_pages(GFP_KERNEL, IOPM_ALLOC_ORDER);
382
383 if (!iopm_pages)
384 return -ENOMEM;
385 memset(page_address(iopm_pages), 0xff,
386 PAGE_SIZE * (1 << IOPM_ALLOC_ORDER));
387 iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT;
388
389
390 msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER);
391
392 r = -ENOMEM;
393 if (!msrpm_pages)
394 goto err_1;
395
396 msrpm_va = page_address(msrpm_pages);
397 memset(msrpm_va, 0xff, PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER));
398 msrpm_base = page_to_pfn(msrpm_pages) << PAGE_SHIFT;
399
05b3e0c2 400#ifdef CONFIG_X86_64
6aa8b732
AK		 401 set_msr_interception(msrpm_va, MSR_GS_BASE, 1, 1);
402 set_msr_interception(msrpm_va, MSR_FS_BASE, 1, 1);
403 set_msr_interception(msrpm_va, MSR_KERNEL_GS_BASE, 1, 1);
6aa8b732
AK		 404 set_msr_interception(msrpm_va, MSR_LSTAR, 1, 1);
405 set_msr_interception(msrpm_va, MSR_CSTAR, 1, 1);
406 set_msr_interception(msrpm_va, MSR_SYSCALL_MASK, 1, 1);
407#endif
0e859cac 408 set_msr_interception(msrpm_va, MSR_K6_STAR, 1, 1);
6aa8b732
AK		 409 set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_CS, 1, 1);
410 set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_ESP, 1, 1);
411 set_msr_interception(msrpm_va, MSR_IA32_SYSENTER_EIP, 1, 1);
412
413 for_each_online_cpu(cpu) {
414 r = svm_cpu_init(cpu);
415 if (r)
416 goto err_2;
417 }
418 return 0;
419
420err_2:
421 __free_pages(msrpm_pages, MSRPM_ALLOC_ORDER);
422 msrpm_base = 0;
423err_1:
424 __free_pages(iopm_pages, IOPM_ALLOC_ORDER);
425 iopm_base = 0;
426 return r;
427}
428
429static __exit void svm_hardware_unsetup(void)
430{
431 __free_pages(pfn_to_page(msrpm_base >> PAGE_SHIFT), MSRPM_ALLOC_ORDER);
432 __free_pages(pfn_to_page(iopm_base >> PAGE_SHIFT), IOPM_ALLOC_ORDER);
433 iopm_base = msrpm_base = 0;
434}
435
436static void init_seg(struct vmcb_seg *seg)
437{
438 seg->selector = 0;
439 seg->attrib = SVM_SELECTOR_P_MASK | SVM_SELECTOR_S_MASK |
440 SVM_SELECTOR_WRITE_MASK; /* Read/Write Data Segment */
441 seg->limit = 0xffff;
442 seg->base = 0;
443}
444
445static void init_sys_seg(struct vmcb_seg *seg, uint32_t type)
446{
447 seg->selector = 0;
448 seg->attrib = SVM_SELECTOR_P_MASK | type;
449 seg->limit = 0xffff;
450 seg->base = 0;
451}
452
453static int svm_vcpu_setup(struct kvm_vcpu *vcpu)
454{
455 return 0;
456}
457
458static void init_vmcb(struct vmcb *vmcb)
459{
460 struct vmcb_control_area *control = &vmcb->control;
461 struct vmcb_save_area *save = &vmcb->save;
462 u64 tsc;
463
464 control->intercept_cr_read = INTERCEPT_CR0_MASK |
465 INTERCEPT_CR3_MASK |
466 INTERCEPT_CR4_MASK;
467
468 control->intercept_cr_write = INTERCEPT_CR0_MASK |
469 INTERCEPT_CR3_MASK |
470 INTERCEPT_CR4_MASK;
471
472 control->intercept_dr_read = INTERCEPT_DR0_MASK |
473 INTERCEPT_DR1_MASK |
474 INTERCEPT_DR2_MASK |
475 INTERCEPT_DR3_MASK;
476
477 control->intercept_dr_write = INTERCEPT_DR0_MASK |
478 INTERCEPT_DR1_MASK |
479 INTERCEPT_DR2_MASK |
480 INTERCEPT_DR3_MASK |
481 INTERCEPT_DR5_MASK |
482 INTERCEPT_DR7_MASK;
483
484 control->intercept_exceptions = 1 << PF_VECTOR;
485
486
487 control->intercept = (1ULL << INTERCEPT_INTR) |
488 (1ULL << INTERCEPT_NMI) |
0152527b 489 (1ULL << INTERCEPT_SMI) |
6aa8b732
AK		 490 /*
491 * selective cr0 intercept bug?
492 * 0: 0f 22 d8 mov %eax,%cr3
493 * 3: 0f 20 c0 mov %cr0,%eax
494 * 6: 0d 00 00 00 80 or $0x80000000,%eax
495 * b: 0f 22 c0 mov %eax,%cr0
496 * set cr3 ->interception
497 * get cr0 ->interception
498 * set cr0 -> no interception
499 */
500 /* (1ULL << INTERCEPT_SELECTIVE_CR0) | */
501 (1ULL << INTERCEPT_CPUID) |
502 (1ULL << INTERCEPT_HLT) |
6aa8b732
AK		 503 (1ULL << INTERCEPT_INVLPGA) |
504 (1ULL << INTERCEPT_IOIO_PROT) |
505 (1ULL << INTERCEPT_MSR_PROT) |
506 (1ULL << INTERCEPT_TASK_SWITCH) |
46fe4ddd 507 (1ULL << INTERCEPT_SHUTDOWN) |
6aa8b732
AK		 508 (1ULL << INTERCEPT_VMRUN) |
509 (1ULL << INTERCEPT_VMMCALL) |
510 (1ULL << INTERCEPT_VMLOAD) |
511 (1ULL << INTERCEPT_VMSAVE) |
512 (1ULL << INTERCEPT_STGI) |
513 (1ULL << INTERCEPT_CLGI) |
514 (1ULL << INTERCEPT_SKINIT);
515
516 control->iopm_base_pa = iopm_base;
517 control->msrpm_base_pa = msrpm_base;
518 rdtscll(tsc);
519 control->tsc_offset = -tsc;
520 control->int_ctl = V_INTR_MASKING_MASK;
521
522 init_seg(&save->es);
523 init_seg(&save->ss);
524 init_seg(&save->ds);
525 init_seg(&save->fs);
526 init_seg(&save->gs);
527
528 save->cs.selector = 0xf000;
529 /* Executable/Readable Code Segment */
530 save->cs.attrib = SVM_SELECTOR_READ_MASK | SVM_SELECTOR_P_MASK |
531 SVM_SELECTOR_S_MASK | SVM_SELECTOR_CODE_MASK;
532 save->cs.limit = 0xffff;
d92899a0
AK		 533 /*
534 * cs.base should really be 0xffff0000, but vmx can't handle that, so
535 * be consistent with it.
536 *
537 * Replace when we have real mode working for vmx.
538 */
539 save->cs.base = 0xf0000;
6aa8b732
AK		 540
541 save->gdtr.limit = 0xffff;
542 save->idtr.limit = 0xffff;
543
544 init_sys_seg(&save->ldtr, SEG_TYPE_LDT);
545 init_sys_seg(&save->tr, SEG_TYPE_BUSY_TSS16);
546
547 save->efer = MSR_EFER_SVME_MASK;
548
549 save->dr6 = 0xffff0ff0;
550 save->dr7 = 0x400;
551 save->rflags = 2;
552 save->rip = 0x0000fff0;
553
554 /*
555 * cr0 val on cpu init should be 0x60000010, we enable cpu
556 * cache by default. the orderly way is to enable cache in bios.
557 */
cd205625 558 save->cr0 = 0x00000010 | CR0_PG_MASK | CR0_WP_MASK;
6aa8b732
AK		 559 save->cr4 = CR4_PAE_MASK;
560 /* rdx = ?? */
561}
562
563static int svm_create_vcpu(struct kvm_vcpu *vcpu)
564{
565 struct page *page;
566 int r;
567
568 r = -ENOMEM;
569 vcpu->svm = kzalloc(sizeof *vcpu->svm, GFP_KERNEL);
570 if (!vcpu->svm)
571 goto out1;
572 page = alloc_page(GFP_KERNEL);
573 if (!page)
574 goto out2;
575
576 vcpu->svm->vmcb = page_address(page);
577 memset(vcpu->svm->vmcb, 0, PAGE_SIZE);
578 vcpu->svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
579 vcpu->svm->cr0 = 0x00000010;
580 vcpu->svm->asid_generation = 0;
581 memset(vcpu->svm->db_regs, 0, sizeof(vcpu->svm->db_regs));
582 init_vmcb(vcpu->svm->vmcb);
583
36241b8c
AK		 584 fx_init(vcpu);
585
6aa8b732
AK		 586 return 0;
587
588out2:
589 kfree(vcpu->svm);
590out1:
591 return r;
592}
593
594static void svm_free_vcpu(struct kvm_vcpu *vcpu)
595{
596 if (!vcpu->svm)
597 return;
598 if (vcpu->svm->vmcb)
599 __free_page(pfn_to_page(vcpu->svm->vmcb_pa >> PAGE_SHIFT));
600 kfree(vcpu->svm);
601}
602
bccf2150 603static void svm_vcpu_load(struct kvm_vcpu *vcpu)
6aa8b732
AK		 604{
605 get_cpu();
6aa8b732
AK		 606}
607
608static void svm_vcpu_put(struct kvm_vcpu *vcpu)
609{
610 put_cpu();
611}
612
774c47f1
AK		 613static void svm_vcpu_decache(struct kvm_vcpu *vcpu)
614{
615}
616
6aa8b732
AK		 617static void svm_cache_regs(struct kvm_vcpu *vcpu)
618{
619 vcpu->regs[VCPU_REGS_RAX] = vcpu->svm->vmcb->save.rax;
620 vcpu->regs[VCPU_REGS_RSP] = vcpu->svm->vmcb->save.rsp;
621 vcpu->rip = vcpu->svm->vmcb->save.rip;
622}
623
624static void svm_decache_regs(struct kvm_vcpu *vcpu)
625{
626 vcpu->svm->vmcb->save.rax = vcpu->regs[VCPU_REGS_RAX];
627 vcpu->svm->vmcb->save.rsp = vcpu->regs[VCPU_REGS_RSP];
628 vcpu->svm->vmcb->save.rip = vcpu->rip;
629}
630
631static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu)
632{
633 return vcpu->svm->vmcb->save.rflags;
634}
635
636static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
637{
638 vcpu->svm->vmcb->save.rflags = rflags;
639}
640
641static struct vmcb_seg *svm_seg(struct kvm_vcpu *vcpu, int seg)
642{
643 struct vmcb_save_area *save = &vcpu->svm->vmcb->save;
644
645 switch (seg) {
646 case VCPU_SREG_CS: return &save->cs;
647 case VCPU_SREG_DS: return &save->ds;
648 case VCPU_SREG_ES: return &save->es;
649 case VCPU_SREG_FS: return &save->fs;
650 case VCPU_SREG_GS: return &save->gs;
651 case VCPU_SREG_SS: return &save->ss;
652 case VCPU_SREG_TR: return &save->tr;
653 case VCPU_SREG_LDTR: return &save->ldtr;
654 }
655 BUG();
8b6d44c7 656 return NULL;
6aa8b732
AK		 657}
658
659static u64 svm_get_segment_base(struct kvm_vcpu *vcpu, int seg)
660{
661 struct vmcb_seg *s = svm_seg(vcpu, seg);
662
663 return s->base;
664}
665
666static void svm_get_segment(struct kvm_vcpu *vcpu,
667 struct kvm_segment *var, int seg)
668{
669 struct vmcb_seg *s = svm_seg(vcpu, seg);
670
671 var->base = s->base;
672 var->limit = s->limit;
673 var->selector = s->selector;
674 var->type = s->attrib & SVM_SELECTOR_TYPE_MASK;
675 var->s = (s->attrib >> SVM_SELECTOR_S_SHIFT) & 1;
676 var->dpl = (s->attrib >> SVM_SELECTOR_DPL_SHIFT) & 3;
677 var->present = (s->attrib >> SVM_SELECTOR_P_SHIFT) & 1;
678 var->avl = (s->attrib >> SVM_SELECTOR_AVL_SHIFT) & 1;
679 var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
680 var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
681 var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
682 var->unusable = !var->present;
683}
684
685static void svm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
686{
687 struct vmcb_seg *s = svm_seg(vcpu, VCPU_SREG_CS);
688
689 *db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
690 *l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
691}
692
693static void svm_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
694{
bce66ca4
LN		 695 dt->limit = vcpu->svm->vmcb->save.idtr.limit;
696 dt->base = vcpu->svm->vmcb->save.idtr.base;
6aa8b732
AK		 697}
698
699static void svm_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
700{
bce66ca4
LN		 701 vcpu->svm->vmcb->save.idtr.limit = dt->limit;
702 vcpu->svm->vmcb->save.idtr.base = dt->base ;
6aa8b732
AK		 703}
704
705static void svm_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
706{
707 dt->limit = vcpu->svm->vmcb->save.gdtr.limit;
708 dt->base = vcpu->svm->vmcb->save.gdtr.base;
709}
710
711static void svm_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
712{
713 vcpu->svm->vmcb->save.gdtr.limit = dt->limit;
714 vcpu->svm->vmcb->save.gdtr.base = dt->base ;
715}
716
399badf3
AK		 717static void svm_decache_cr0_cr4_guest_bits(struct kvm_vcpu *vcpu)
718{
719}
720
6aa8b732
AK		 721static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
722{
05b3e0c2 723#ifdef CONFIG_X86_64
6aa8b732
AK		 724 if (vcpu->shadow_efer & KVM_EFER_LME) {
725 if (!is_paging(vcpu) && (cr0 & CR0_PG_MASK)) {
726 vcpu->shadow_efer |= KVM_EFER_LMA;
727 vcpu->svm->vmcb->save.efer |= KVM_EFER_LMA | KVM_EFER_LME;
728 }
729
730 if (is_paging(vcpu) && !(cr0 & CR0_PG_MASK) ) {
731 vcpu->shadow_efer &= ~KVM_EFER_LMA;
732 vcpu->svm->vmcb->save.efer &= ~(KVM_EFER_LMA | KVM_EFER_LME);
733 }
734 }
735#endif
736 vcpu->svm->cr0 = cr0;
ac6c2bc5 737 vcpu->svm->vmcb->save.cr0 = cr0 | CR0_PG_MASK | CR0_WP_MASK;
6aa8b732
AK		 738 vcpu->cr0 = cr0;
739}
740
741static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
742{
743 vcpu->cr4 = cr4;
744 vcpu->svm->vmcb->save.cr4 = cr4 | CR4_PAE_MASK;
745}
746
747static void svm_set_segment(struct kvm_vcpu *vcpu,
748 struct kvm_segment *var, int seg)
749{
750 struct vmcb_seg *s = svm_seg(vcpu, seg);
751
752 s->base = var->base;
753 s->limit = var->limit;
754 s->selector = var->selector;
755 if (var->unusable)
756 s->attrib = 0;
757 else {
758 s->attrib = (var->type & SVM_SELECTOR_TYPE_MASK);
759 s->attrib |= (var->s & 1) << SVM_SELECTOR_S_SHIFT;
760 s->attrib |= (var->dpl & 3) << SVM_SELECTOR_DPL_SHIFT;
761 s->attrib |= (var->present & 1) << SVM_SELECTOR_P_SHIFT;
762 s->attrib |= (var->avl & 1) << SVM_SELECTOR_AVL_SHIFT;
763 s->attrib |= (var->l & 1) << SVM_SELECTOR_L_SHIFT;
764 s->attrib |= (var->db & 1) << SVM_SELECTOR_DB_SHIFT;
765 s->attrib |= (var->g & 1) << SVM_SELECTOR_G_SHIFT;
766 }
767 if (seg == VCPU_SREG_CS)
768 vcpu->svm->vmcb->save.cpl
769 = (vcpu->svm->vmcb->save.cs.attrib
770 >> SVM_SELECTOR_DPL_SHIFT) & 3;
771
772}
773
774/* FIXME:
775
776 vcpu->svm->vmcb->control.int_ctl &= ~V_TPR_MASK;
777 vcpu->svm->vmcb->control.int_ctl |= (sregs->cr8 & V_TPR_MASK);
778
779*/
780
781static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
782{
783 return -EOPNOTSUPP;
784}
785
786static void load_host_msrs(struct kvm_vcpu *vcpu)
787{
788 int i;
789
790 for ( i = 0; i < NR_HOST_SAVE_MSRS; i++)
791 wrmsrl(host_save_msrs[i], vcpu->svm->host_msrs[i]);
792}
793
794static void save_host_msrs(struct kvm_vcpu *vcpu)
795{
796 int i;
797
798 for ( i = 0; i < NR_HOST_SAVE_MSRS; i++)
799 rdmsrl(host_save_msrs[i], vcpu->svm->host_msrs[i]);
800}
801
802static void new_asid(struct kvm_vcpu *vcpu, struct svm_cpu_data *svm_data)
803{
804 if (svm_data->next_asid > svm_data->max_asid) {
805 ++svm_data->asid_generation;
806 svm_data->next_asid = 1;
807 vcpu->svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
808 }
809
810 vcpu->cpu = svm_data->cpu;
811 vcpu->svm->asid_generation = svm_data->asid_generation;
812 vcpu->svm->vmcb->control.asid = svm_data->next_asid++;
813}
814
815static void svm_invlpg(struct kvm_vcpu *vcpu, gva_t address)
816{
817 invlpga(address, vcpu->svm->vmcb->control.asid); // is needed?
818}
819
820static unsigned long svm_get_dr(struct kvm_vcpu *vcpu, int dr)
821{
822 return vcpu->svm->db_regs[dr];
823}
824
825static void svm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long value,
826 int *exception)
827{
828 *exception = 0;
829
830 if (vcpu->svm->vmcb->save.dr7 & DR7_GD_MASK) {
831 vcpu->svm->vmcb->save.dr7 &= ~DR7_GD_MASK;
832 vcpu->svm->vmcb->save.dr6 |= DR6_BD_MASK;
833 *exception = DB_VECTOR;
834 return;
835 }
836
837 switch (dr) {
838 case 0 ... 3:
839 vcpu->svm->db_regs[dr] = value;
840 return;
841 case 4 ... 5:
842 if (vcpu->cr4 & CR4_DE_MASK) {
843 *exception = UD_VECTOR;
844 return;
845 }
846 case 7: {
847 if (value & ~((1ULL << 32) - 1)) {
848 *exception = GP_VECTOR;
849 return;
850 }
851 vcpu->svm->vmcb->save.dr7 = value;
852 return;
853 }
854 default:
855 printk(KERN_DEBUG "%s: unexpected dr %u\n",
856 __FUNCTION__, dr);
857 *exception = UD_VECTOR;
858 return;
859 }
860}
861
862static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
863{
864 u32 exit_int_info = vcpu->svm->vmcb->control.exit_int_info;
865 u64 fault_address;
866 u32 error_code;
867 enum emulation_result er;
e2dec939 868 int r;
6aa8b732
AK		 869
870 if (is_external_interrupt(exit_int_info))
871 push_irq(vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
872
873 spin_lock(&vcpu->kvm->lock);
874
875 fault_address = vcpu->svm->vmcb->control.exit_info_2;
876 error_code = vcpu->svm->vmcb->control.exit_info_1;
e2dec939
AK		 877 r = kvm_mmu_page_fault(vcpu, fault_address, error_code);
878 if (r < 0) {
879 spin_unlock(&vcpu->kvm->lock);
880 return r;
881 }
882 if (!r) {
6aa8b732
AK		 883 spin_unlock(&vcpu->kvm->lock);
884 return 1;
885 }
886 er = emulate_instruction(vcpu, kvm_run, fault_address, error_code);
887 spin_unlock(&vcpu->kvm->lock);
888
889 switch (er) {
890 case EMULATE_DONE:
891 return 1;
892 case EMULATE_DO_MMIO:
893 ++kvm_stat.mmio_exits;
894 kvm_run->exit_reason = KVM_EXIT_MMIO;
895 return 0;
896 case EMULATE_FAIL:
897 vcpu_printf(vcpu, "%s: emulate fail\n", __FUNCTION__);
898 break;
899 default:
900 BUG();
901 }
902
903 kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
904 return 0;
905}
906
46fe4ddd
JR		 907static int shutdown_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
908{
909 /*
910 * VMCB is undefined after a SHUTDOWN intercept
911 * so reinitialize it.
912 */
913 memset(vcpu->svm->vmcb, 0, PAGE_SIZE);
914 init_vmcb(vcpu->svm->vmcb);
915
916 kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
917 return 0;
918}
919
6aa8b732
AK		 920static int io_get_override(struct kvm_vcpu *vcpu,
921 struct vmcb_seg **seg,
922 int *addr_override)
923{
924 u8 inst[MAX_INST_SIZE];
925 unsigned ins_length;
926 gva_t rip;
927 int i;
928
929 rip = vcpu->svm->vmcb->save.rip;
930 ins_length = vcpu->svm->next_rip - rip;
931 rip += vcpu->svm->vmcb->save.cs.base;
932
933 if (ins_length > MAX_INST_SIZE)
934 printk(KERN_DEBUG
935 "%s: inst length err, cs base 0x%llx rip 0x%llx "
936 "next rip 0x%llx ins_length %u\n",
937 __FUNCTION__,
938 vcpu->svm->vmcb->save.cs.base,
939 vcpu->svm->vmcb->save.rip,
940 vcpu->svm->vmcb->control.exit_info_2,
941 ins_length);
942
943 if (kvm_read_guest(vcpu, rip, ins_length, inst) != ins_length)
944 /* #PF */
945 return 0;
946
947 *addr_override = 0;
8b6d44c7 948 *seg = NULL;
6aa8b732
AK		 949 for (i = 0; i < ins_length; i++)
950 switch (inst[i]) {
951 case 0xf0:
952 case 0xf2:
953 case 0xf3:
954 case 0x66:
955 continue;
956 case 0x67:
957 *addr_override = 1;
958 continue;
959 case 0x2e:
960 *seg = &vcpu->svm->vmcb->save.cs;
961 continue;
962 case 0x36:
963 *seg = &vcpu->svm->vmcb->save.ss;
964 continue;
965 case 0x3e:
966 *seg = &vcpu->svm->vmcb->save.ds;
967 continue;
968 case 0x26:
969 *seg = &vcpu->svm->vmcb->save.es;
970 continue;
971 case 0x64:
972 *seg = &vcpu->svm->vmcb->save.fs;
973 continue;
974 case 0x65:
975 *seg = &vcpu->svm->vmcb->save.gs;
976 continue;
977 default:
978 return 1;
979 }
980 printk(KERN_DEBUG "%s: unexpected\n", __FUNCTION__);
981 return 0;
982}
983
984static unsigned long io_adress(struct kvm_vcpu *vcpu, int ins, u64 *address)
985{
986 unsigned long addr_mask;
987 unsigned long *reg;
988 struct vmcb_seg *seg;
989 int addr_override;
990 struct vmcb_save_area *save_area = &vcpu->svm->vmcb->save;
991 u16 cs_attrib = save_area->cs.attrib;
992 unsigned addr_size = get_addr_size(vcpu);
993
994 if (!io_get_override(vcpu, &seg, &addr_override))
995 return 0;
996
997 if (addr_override)
998 addr_size = (addr_size == 2) ? 4: (addr_size >> 1);
999
1000 if (ins) {
1001 reg = &vcpu->regs[VCPU_REGS_RDI];
1002 seg = &vcpu->svm->vmcb->save.es;
1003 } else {
1004 reg = &vcpu->regs[VCPU_REGS_RSI];
1005 seg = (seg) ? seg : &vcpu->svm->vmcb->save.ds;
1006 }
1007
1008 addr_mask = ~0ULL >> (64 - (addr_size * 8));
1009
1010 if ((cs_attrib & SVM_SELECTOR_L_MASK) &&
1011 !(vcpu->svm->vmcb->save.rflags & X86_EFLAGS_VM)) {
1012 *address = (*reg & addr_mask);
1013 return addr_mask;
1014 }
1015
1016 if (!(seg->attrib & SVM_SELECTOR_P_SHIFT)) {
1017 svm_inject_gp(vcpu, 0);
1018 return 0;
1019 }
1020
1021 *address = (*reg & addr_mask) + seg->base;
1022 return addr_mask;
1023}
1024
1025static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1026{
1027 u32 io_info = vcpu->svm->vmcb->control.exit_info_1; //address size bug?
1028 int _in = io_info & SVM_IOIO_TYPE_MASK;
1029
1030 ++kvm_stat.io_exits;
1031
1032 vcpu->svm->next_rip = vcpu->svm->vmcb->control.exit_info_2;
1033
1034 kvm_run->exit_reason = KVM_EXIT_IO;
1035 kvm_run->io.port = io_info >> 16;
1036 kvm_run->io.direction = (_in) ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
1037 kvm_run->io.size = ((io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT);
1038 kvm_run->io.string = (io_info & SVM_IOIO_STR_MASK) != 0;
1039 kvm_run->io.rep = (io_info & SVM_IOIO_REP_MASK) != 0;
46fc1477 1040 kvm_run->io.count = 1;
6aa8b732
AK		 1041
1042 if (kvm_run->io.string) {
1043 unsigned addr_mask;
1044
1045 addr_mask = io_adress(vcpu, _in, &kvm_run->io.address);
1046 if (!addr_mask) {
d27d4aca
AK		 1047 printk(KERN_DEBUG "%s: get io address failed\n",
1048 __FUNCTION__);
6aa8b732
AK		 1049 return 1;
1050 }
1051
1052 if (kvm_run->io.rep) {
d27d4aca
AK		 1053 kvm_run->io.count
1054 = vcpu->regs[VCPU_REGS_RCX] & addr_mask;
6aa8b732
AK		 1055 kvm_run->io.string_down = (vcpu->svm->vmcb->save.rflags
1056 & X86_EFLAGS_DF) != 0;
1057 }
d27d4aca 1058 } else
6aa8b732 1059 kvm_run->io.value = vcpu->svm->vmcb->save.rax;
46fc1477 1060 vcpu->pio_pending = 1;
6aa8b732
AK		 1061 return 0;
1062}
1063
6aa8b732
AK		 1064static int nop_on_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1065{
1066 return 1;
1067}
1068
1069static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1070{
1071 vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 1;
1072 skip_emulated_instruction(vcpu);
c1150d8c 1073 if (vcpu->irq_summary)
6aa8b732
AK		 1074 return 1;
1075
1076 kvm_run->exit_reason = KVM_EXIT_HLT;
c1150d8c 1077 ++kvm_stat.halt_exits;
6aa8b732
AK		 1078 return 0;
1079}
1080
02e235bc
AK		 1081static int vmmcall_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1082{
510043da
DL		 1083 vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 3;
1084 skip_emulated_instruction(vcpu);
270fd9b9 1085 return kvm_hypercall(vcpu, kvm_run);
02e235bc
AK		 1086}
1087
6aa8b732
AK		 1088static int invalid_op_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1089{
1090 inject_ud(vcpu);
1091 return 1;
1092}
1093
1094static int task_switch_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1095{
1096 printk(KERN_DEBUG "%s: task swiche is unsupported\n", __FUNCTION__);
1097 kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
1098 return 0;
1099}
1100
1101static int cpuid_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1102{
1103 vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 2;
1104 kvm_run->exit_reason = KVM_EXIT_CPUID;
1105 return 0;
1106}
1107
1108static int emulate_on_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1109{
8b6d44c7 1110 if (emulate_instruction(vcpu, NULL, 0, 0) != EMULATE_DONE)
6aa8b732
AK		 1111 printk(KERN_ERR "%s: failed\n", __FUNCTION__);
1112 return 1;
1113}
1114
1115static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
1116{
1117 switch (ecx) {
6aa8b732
AK		 1118 case MSR_IA32_TIME_STAMP_COUNTER: {
1119 u64 tsc;
1120
1121 rdtscll(tsc);
1122 *data = vcpu->svm->vmcb->control.tsc_offset + tsc;
1123 break;
1124 }
0e859cac 1125 case MSR_K6_STAR:
6aa8b732
AK		 1126 *data = vcpu->svm->vmcb->save.star;
1127 break;
0e859cac 1128#ifdef CONFIG_X86_64
6aa8b732
AK		 1129 case MSR_LSTAR:
1130 *data = vcpu->svm->vmcb->save.lstar;
1131 break;
1132 case MSR_CSTAR:
1133 *data = vcpu->svm->vmcb->save.cstar;
1134 break;
1135 case MSR_KERNEL_GS_BASE:
1136 *data = vcpu->svm->vmcb->save.kernel_gs_base;
1137 break;
1138 case MSR_SYSCALL_MASK:
1139 *data = vcpu->svm->vmcb->save.sfmask;
1140 break;
1141#endif
1142 case MSR_IA32_SYSENTER_CS:
1143 *data = vcpu->svm->vmcb->save.sysenter_cs;
1144 break;
1145 case MSR_IA32_SYSENTER_EIP:
1146 *data = vcpu->svm->vmcb->save.sysenter_eip;
1147 break;
1148 case MSR_IA32_SYSENTER_ESP:
1149 *data = vcpu->svm->vmcb->save.sysenter_esp;
1150 break;
1151 default:
3bab1f5d 1152 return kvm_get_msr_common(vcpu, ecx, data);
6aa8b732
AK		 1153 }
1154 return 0;
1155}
1156
1157static int rdmsr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1158{
1159 u32 ecx = vcpu->regs[VCPU_REGS_RCX];
1160 u64 data;
1161
1162 if (svm_get_msr(vcpu, ecx, &data))
1163 svm_inject_gp(vcpu, 0);
1164 else {
1165 vcpu->svm->vmcb->save.rax = data & 0xffffffff;
1166 vcpu->regs[VCPU_REGS_RDX] = data >> 32;
1167 vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 2;
1168 skip_emulated_instruction(vcpu);
1169 }
1170 return 1;
1171}
1172
1173static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
1174{
1175 switch (ecx) {
6aa8b732
AK		 1176 case MSR_IA32_TIME_STAMP_COUNTER: {
1177 u64 tsc;
1178
1179 rdtscll(tsc);
1180 vcpu->svm->vmcb->control.tsc_offset = data - tsc;
1181 break;
1182 }
0e859cac 1183 case MSR_K6_STAR:
6aa8b732
AK		 1184 vcpu->svm->vmcb->save.star = data;
1185 break;
49b14f24 1186#ifdef CONFIG_X86_64
6aa8b732
AK		 1187 case MSR_LSTAR:
1188 vcpu->svm->vmcb->save.lstar = data;
1189 break;
1190 case MSR_CSTAR:
1191 vcpu->svm->vmcb->save.cstar = data;
1192 break;
1193 case MSR_KERNEL_GS_BASE:
1194 vcpu->svm->vmcb->save.kernel_gs_base = data;
1195 break;
1196 case MSR_SYSCALL_MASK:
1197 vcpu->svm->vmcb->save.sfmask = data;
1198 break;
1199#endif
1200 case MSR_IA32_SYSENTER_CS:
1201 vcpu->svm->vmcb->save.sysenter_cs = data;
1202 break;
1203 case MSR_IA32_SYSENTER_EIP:
1204 vcpu->svm->vmcb->save.sysenter_eip = data;
1205 break;
1206 case MSR_IA32_SYSENTER_ESP:
1207 vcpu->svm->vmcb->save.sysenter_esp = data;
1208 break;
1209 default:
3bab1f5d 1210 return kvm_set_msr_common(vcpu, ecx, data);
6aa8b732
AK		 1211 }
1212 return 0;
1213}
1214
1215static int wrmsr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1216{
1217 u32 ecx = vcpu->regs[VCPU_REGS_RCX];
1218 u64 data = (vcpu->svm->vmcb->save.rax & -1u)
1219 | ((u64)(vcpu->regs[VCPU_REGS_RDX] & -1u) << 32);
1220 vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 2;
1221 if (svm_set_msr(vcpu, ecx, data))
1222 svm_inject_gp(vcpu, 0);
1223 else
1224 skip_emulated_instruction(vcpu);
1225 return 1;
1226}
1227
1228static int msr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1229{
1230 if (vcpu->svm->vmcb->control.exit_info_1)
1231 return wrmsr_interception(vcpu, kvm_run);
1232 else
1233 return rdmsr_interception(vcpu, kvm_run);
1234}
1235
c1150d8c
DL		 1236static int interrupt_window_interception(struct kvm_vcpu *vcpu,
1237 struct kvm_run *kvm_run)
1238{
1239 /*
1240 * If the user space waits to inject interrupts, exit as soon as
1241 * possible
1242 */
1243 if (kvm_run->request_interrupt_window &&
022a9308 1244 !vcpu->irq_summary) {
c1150d8c
DL		 1245 ++kvm_stat.irq_window_exits;
1246 kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
1247 return 0;
1248 }
1249
1250 return 1;
1251}
1252
6aa8b732
AK		 1253static int (*svm_exit_handlers[])(struct kvm_vcpu *vcpu,
1254 struct kvm_run *kvm_run) = {
1255 [SVM_EXIT_READ_CR0] = emulate_on_interception,
1256 [SVM_EXIT_READ_CR3] = emulate_on_interception,
1257 [SVM_EXIT_READ_CR4] = emulate_on_interception,
1258 /* for now: */
1259 [SVM_EXIT_WRITE_CR0] = emulate_on_interception,
1260 [SVM_EXIT_WRITE_CR3] = emulate_on_interception,
1261 [SVM_EXIT_WRITE_CR4] = emulate_on_interception,
1262 [SVM_EXIT_READ_DR0] = emulate_on_interception,
1263 [SVM_EXIT_READ_DR1] = emulate_on_interception,
1264 [SVM_EXIT_READ_DR2] = emulate_on_interception,
1265 [SVM_EXIT_READ_DR3] = emulate_on_interception,
1266 [SVM_EXIT_WRITE_DR0] = emulate_on_interception,
1267 [SVM_EXIT_WRITE_DR1] = emulate_on_interception,
1268 [SVM_EXIT_WRITE_DR2] = emulate_on_interception,
1269 [SVM_EXIT_WRITE_DR3] = emulate_on_interception,
1270 [SVM_EXIT_WRITE_DR5] = emulate_on_interception,
1271 [SVM_EXIT_WRITE_DR7] = emulate_on_interception,
1272 [SVM_EXIT_EXCP_BASE + PF_VECTOR] = pf_interception,
1273 [SVM_EXIT_INTR] = nop_on_interception,
1274 [SVM_EXIT_NMI] = nop_on_interception,
1275 [SVM_EXIT_SMI] = nop_on_interception,
1276 [SVM_EXIT_INIT] = nop_on_interception,
c1150d8c 1277 [SVM_EXIT_VINTR] = interrupt_window_interception,
6aa8b732
AK		 1278 /* [SVM_EXIT_CR0_SEL_WRITE] = emulate_on_interception, */
1279 [SVM_EXIT_CPUID] = cpuid_interception,
1280 [SVM_EXIT_HLT] = halt_interception,
1281 [SVM_EXIT_INVLPG] = emulate_on_interception,
1282 [SVM_EXIT_INVLPGA] = invalid_op_interception,
1283 [SVM_EXIT_IOIO] = io_interception,
1284 [SVM_EXIT_MSR] = msr_interception,
1285 [SVM_EXIT_TASK_SWITCH] = task_switch_interception,
46fe4ddd 1286 [SVM_EXIT_SHUTDOWN] = shutdown_interception,
6aa8b732 1287 [SVM_EXIT_VMRUN] = invalid_op_interception,
02e235bc 1288 [SVM_EXIT_VMMCALL] = vmmcall_interception,
6aa8b732
AK		 1289 [SVM_EXIT_VMLOAD] = invalid_op_interception,
1290 [SVM_EXIT_VMSAVE] = invalid_op_interception,
1291 [SVM_EXIT_STGI] = invalid_op_interception,
1292 [SVM_EXIT_CLGI] = invalid_op_interception,
1293 [SVM_EXIT_SKINIT] = invalid_op_interception,
1294};
1295
1296
1297static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1298{
1299 u32 exit_code = vcpu->svm->vmcb->control.exit_code;
1300
1301 kvm_run->exit_type = KVM_EXIT_TYPE_VM_EXIT;
1302
1303 if (is_external_interrupt(vcpu->svm->vmcb->control.exit_int_info) &&
1304 exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR)
1305 printk(KERN_ERR "%s: unexpected exit_ini_info 0x%x "
1306 "exit_code 0x%x\n",
1307 __FUNCTION__, vcpu->svm->vmcb->control.exit_int_info,
1308 exit_code);
1309
9d8f549d 1310 if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
6aa8b732
AK		 1311 || svm_exit_handlers[exit_code] == 0) {
1312 kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
1313 printk(KERN_ERR "%s: 0x%x @ 0x%llx cr0 0x%lx rflags 0x%llx\n",
1314 __FUNCTION__,
1315 exit_code,
1316 vcpu->svm->vmcb->save.rip,
1317 vcpu->cr0,
1318 vcpu->svm->vmcb->save.rflags);
1319 return 0;
1320 }
1321
1322 return svm_exit_handlers[exit_code](vcpu, kvm_run);
1323}
1324
1325static void reload_tss(struct kvm_vcpu *vcpu)
1326{
1327 int cpu = raw_smp_processor_id();
1328
1329 struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
1330 svm_data->tss_desc->type = 9; //available 32/64-bit TSS
1331 load_TR_desc();
1332}
1333
1334static void pre_svm_run(struct kvm_vcpu *vcpu)
1335{
1336 int cpu = raw_smp_processor_id();
1337
1338 struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
1339
1340 vcpu->svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING;
1341 if (vcpu->cpu != cpu ||
1342 vcpu->svm->asid_generation != svm_data->asid_generation)
1343 new_asid(vcpu, svm_data);
1344}
1345
1346
c1150d8c 1347static inline void kvm_do_inject_irq(struct kvm_vcpu *vcpu)
6aa8b732
AK		 1348{
1349 struct vmcb_control_area *control;
1350
6aa8b732 1351 control = &vcpu->svm->vmcb->control;
6aa8b732
AK		 1352 control->int_vector = pop_irq(vcpu);
1353 control->int_ctl &= ~V_INTR_PRIO_MASK;
1354 control->int_ctl |= V_IRQ_MASK |
1355 ((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT);
1356}
1357
1358static void kvm_reput_irq(struct kvm_vcpu *vcpu)
1359{
1360 struct vmcb_control_area *control = &vcpu->svm->vmcb->control;
1361
1362 if (control->int_ctl & V_IRQ_MASK) {
1363 control->int_ctl &= ~V_IRQ_MASK;
1364 push_irq(vcpu, control->int_vector);
1365 }
c1150d8c
DL		 1366
1367 vcpu->interrupt_window_open =
1368 !(control->int_state & SVM_INTERRUPT_SHADOW_MASK);
1369}
1370
1371static void do_interrupt_requests(struct kvm_vcpu *vcpu,
1372 struct kvm_run *kvm_run)
1373{
1374 struct vmcb_control_area *control = &vcpu->svm->vmcb->control;
1375
1376 vcpu->interrupt_window_open =
1377 (!(control->int_state & SVM_INTERRUPT_SHADOW_MASK) &&
1378 (vcpu->svm->vmcb->save.rflags & X86_EFLAGS_IF));
1379
1380 if (vcpu->interrupt_window_open && vcpu->irq_summary)
1381 /*
1382 * If interrupts enabled, and not blocked by sti or mov ss. Good.
1383 */
1384 kvm_do_inject_irq(vcpu);
1385
1386 /*
1387 * Interrupts blocked. Wait for unblock.
1388 */
1389 if (!vcpu->interrupt_window_open &&
1390 (vcpu->irq_summary || kvm_run->request_interrupt_window)) {
1391 control->intercept |= 1ULL << INTERCEPT_VINTR;
1392 } else
1393 control->intercept &= ~(1ULL << INTERCEPT_VINTR);
1394}
1395
1396static void post_kvm_run_save(struct kvm_vcpu *vcpu,
1397 struct kvm_run *kvm_run)
1398{
1399 kvm_run->ready_for_interrupt_injection = (vcpu->interrupt_window_open &&
1400 vcpu->irq_summary == 0);
1401 kvm_run->if_flag = (vcpu->svm->vmcb->save.rflags & X86_EFLAGS_IF) != 0;
1402 kvm_run->cr8 = vcpu->cr8;
1403 kvm_run->apic_base = vcpu->apic_base;
1404}
1405
1406/*
1407 * Check if userspace requested an interrupt window, and that the
1408 * interrupt window is open.
1409 *
1410 * No need to exit to userspace if we already have an interrupt queued.
1411 */
1412static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
1413 struct kvm_run *kvm_run)
1414{
1415 return (!vcpu->irq_summary &&
1416 kvm_run->request_interrupt_window &&
1417 vcpu->interrupt_window_open &&
1418 (vcpu->svm->vmcb->save.rflags & X86_EFLAGS_IF));
6aa8b732
AK		 1419}
1420
1421static void save_db_regs(unsigned long *db_regs)
1422{
5aff458e
AK		 1423 asm volatile ("mov %%dr0, %0" : "=r"(db_regs[0]));
1424 asm volatile ("mov %%dr1, %0" : "=r"(db_regs[1]));
1425 asm volatile ("mov %%dr2, %0" : "=r"(db_regs[2]));
1426 asm volatile ("mov %%dr3, %0" : "=r"(db_regs[3]));
6aa8b732
AK		 1427}
1428
1429static void load_db_regs(unsigned long *db_regs)
1430{
5aff458e
AK		 1431 asm volatile ("mov %0, %%dr0" : : "r"(db_regs[0]));
1432 asm volatile ("mov %0, %%dr1" : : "r"(db_regs[1]));
1433 asm volatile ("mov %0, %%dr2" : : "r"(db_regs[2]));
1434 asm volatile ("mov %0, %%dr3" : : "r"(db_regs[3]));
6aa8b732
AK		 1435}
1436
1437static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
1438{
1439 u16 fs_selector;
1440 u16 gs_selector;
1441 u16 ldt_selector;
e2dec939 1442 int r;
6aa8b732
AK		 1443
1444again:
cccf748b
AK		 1445 if (!vcpu->mmio_read_completed)
1446 do_interrupt_requests(vcpu, kvm_run);
6aa8b732
AK		 1447
1448 clgi();
1449
1450 pre_svm_run(vcpu);
1451
1452 save_host_msrs(vcpu);
1453 fs_selector = read_fs();
1454 gs_selector = read_gs();
1455 ldt_selector = read_ldt();
1456 vcpu->svm->host_cr2 = kvm_read_cr2();
1457 vcpu->svm->host_dr6 = read_dr6();
1458 vcpu->svm->host_dr7 = read_dr7();
1459 vcpu->svm->vmcb->save.cr2 = vcpu->cr2;
1460
1461 if (vcpu->svm->vmcb->save.dr7 & 0xff) {
1462 write_dr7(0);
1463 save_db_regs(vcpu->svm->host_db_regs);
1464 load_db_regs(vcpu->svm->db_regs);
1465 }
36241b8c
AK		 1466
1467 fx_save(vcpu->host_fx_image);
1468 fx_restore(vcpu->guest_fx_image);
1469
6aa8b732 1470 asm volatile (
05b3e0c2 1471#ifdef CONFIG_X86_64
6aa8b732
AK		 1472 "push %%rbx; push %%rcx; push %%rdx;"
1473 "push %%rsi; push %%rdi; push %%rbp;"
1474 "push %%r8; push %%r9; push %%r10; push %%r11;"
1475 "push %%r12; push %%r13; push %%r14; push %%r15;"
1476#else
1477 "push %%ebx; push %%ecx; push %%edx;"
1478 "push %%esi; push %%edi; push %%ebp;"
1479#endif
1480
05b3e0c2 1481#ifdef CONFIG_X86_64
6aa8b732
AK		 1482 "mov %c[rbx](%[vcpu]), %%rbx \n\t"
1483 "mov %c[rcx](%[vcpu]), %%rcx \n\t"
1484 "mov %c[rdx](%[vcpu]), %%rdx \n\t"
1485 "mov %c[rsi](%[vcpu]), %%rsi \n\t"
1486 "mov %c[rdi](%[vcpu]), %%rdi \n\t"
1487 "mov %c[rbp](%[vcpu]), %%rbp \n\t"
1488 "mov %c[r8](%[vcpu]), %%r8 \n\t"
1489 "mov %c[r9](%[vcpu]), %%r9 \n\t"
1490 "mov %c[r10](%[vcpu]), %%r10 \n\t"
1491 "mov %c[r11](%[vcpu]), %%r11 \n\t"
1492 "mov %c[r12](%[vcpu]), %%r12 \n\t"
1493 "mov %c[r13](%[vcpu]), %%r13 \n\t"
1494 "mov %c[r14](%[vcpu]), %%r14 \n\t"
1495 "mov %c[r15](%[vcpu]), %%r15 \n\t"
1496#else
1497 "mov %c[rbx](%[vcpu]), %%ebx \n\t"
1498 "mov %c[rcx](%[vcpu]), %%ecx \n\t"
1499 "mov %c[rdx](%[vcpu]), %%edx \n\t"
1500 "mov %c[rsi](%[vcpu]), %%esi \n\t"
1501 "mov %c[rdi](%[vcpu]), %%edi \n\t"
1502 "mov %c[rbp](%[vcpu]), %%ebp \n\t"
1503#endif
1504
05b3e0c2 1505#ifdef CONFIG_X86_64
6aa8b732
AK		 1506 /* Enter guest mode */
1507 "push %%rax \n\t"
1508 "mov %c[svm](%[vcpu]), %%rax \n\t"
1509 "mov %c[vmcb](%%rax), %%rax \n\t"
1510 SVM_VMLOAD "\n\t"
1511 SVM_VMRUN "\n\t"
1512 SVM_VMSAVE "\n\t"
1513 "pop %%rax \n\t"
1514#else
1515 /* Enter guest mode */
1516 "push %%eax \n\t"
1517 "mov %c[svm](%[vcpu]), %%eax \n\t"
1518 "mov %c[vmcb](%%eax), %%eax \n\t"
1519 SVM_VMLOAD "\n\t"
1520 SVM_VMRUN "\n\t"
1521 SVM_VMSAVE "\n\t"
1522 "pop %%eax \n\t"
1523#endif
1524
1525 /* Save guest registers, load host registers */
05b3e0c2 1526#ifdef CONFIG_X86_64
6aa8b732
AK		 1527 "mov %%rbx, %c[rbx](%[vcpu]) \n\t"
1528 "mov %%rcx, %c[rcx](%[vcpu]) \n\t"
1529 "mov %%rdx, %c[rdx](%[vcpu]) \n\t"
1530 "mov %%rsi, %c[rsi](%[vcpu]) \n\t"
1531 "mov %%rdi, %c[rdi](%[vcpu]) \n\t"
1532 "mov %%rbp, %c[rbp](%[vcpu]) \n\t"
1533 "mov %%r8, %c[r8](%[vcpu]) \n\t"
1534 "mov %%r9, %c[r9](%[vcpu]) \n\t"
1535 "mov %%r10, %c[r10](%[vcpu]) \n\t"
1536 "mov %%r11, %c[r11](%[vcpu]) \n\t"
1537 "mov %%r12, %c[r12](%[vcpu]) \n\t"
1538 "mov %%r13, %c[r13](%[vcpu]) \n\t"
1539 "mov %%r14, %c[r14](%[vcpu]) \n\t"
1540 "mov %%r15, %c[r15](%[vcpu]) \n\t"
1541
1542 "pop %%r15; pop %%r14; pop %%r13; pop %%r12;"
1543 "pop %%r11; pop %%r10; pop %%r9; pop %%r8;"
1544 "pop %%rbp; pop %%rdi; pop %%rsi;"
1545 "pop %%rdx; pop %%rcx; pop %%rbx; \n\t"
1546#else
1547 "mov %%ebx, %c[rbx](%[vcpu]) \n\t"
1548 "mov %%ecx, %c[rcx](%[vcpu]) \n\t"
1549 "mov %%edx, %c[rdx](%[vcpu]) \n\t"
1550 "mov %%esi, %c[rsi](%[vcpu]) \n\t"
1551 "mov %%edi, %c[rdi](%[vcpu]) \n\t"
1552 "mov %%ebp, %c[rbp](%[vcpu]) \n\t"
1553
1554 "pop %%ebp; pop %%edi; pop %%esi;"
1555 "pop %%edx; pop %%ecx; pop %%ebx; \n\t"
1556#endif
1557 :
1558 : [vcpu]"a"(vcpu),
1559 [svm]"i"(offsetof(struct kvm_vcpu, svm)),
1560 [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)),
1561 [rbx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RBX])),
1562 [rcx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RCX])),
1563 [rdx]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RDX])),
1564 [rsi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RSI])),
1565 [rdi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RDI])),
1566 [rbp]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RBP]))
05b3e0c2 1567#ifdef CONFIG_X86_64
6aa8b732
AK		 1568 ,[r8 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R8 ])),
1569 [r9 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R9 ])),
1570 [r10]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R10])),
1571 [r11]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R11])),
1572 [r12]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R12])),
1573 [r13]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R13])),
1574 [r14]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R14])),
1575 [r15]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R15]))
1576#endif
1577 : "cc", "memory" );
1578
36241b8c
AK		 1579 fx_save(vcpu->guest_fx_image);
1580 fx_restore(vcpu->host_fx_image);
1581
6aa8b732
AK		 1582 if ((vcpu->svm->vmcb->save.dr7 & 0xff))
1583 load_db_regs(vcpu->svm->host_db_regs);
1584
1585 vcpu->cr2 = vcpu->svm->vmcb->save.cr2;
1586
1587 write_dr6(vcpu->svm->host_dr6);
1588 write_dr7(vcpu->svm->host_dr7);
1589 kvm_write_cr2(vcpu->svm->host_cr2);
1590
1591 load_fs(fs_selector);
1592 load_gs(gs_selector);
1593 load_ldt(ldt_selector);
1594 load_host_msrs(vcpu);
1595
1596 reload_tss(vcpu);
1597
07031e14
IM		 1598 /*
1599 * Profile KVM exit RIPs:
1600 */
1601 if (unlikely(prof_on == KVM_PROFILING))
1602 profile_hit(KVM_PROFILING,
1603 (void *)(unsigned long)vcpu->svm->vmcb->save.rip);
1604
6aa8b732
AK		 1605 stgi();
1606
1607 kvm_reput_irq(vcpu);
1608
1609 vcpu->svm->next_rip = 0;
1610
1611 if (vcpu->svm->vmcb->control.exit_code == SVM_EXIT_ERR) {
1612 kvm_run->exit_type = KVM_EXIT_TYPE_FAIL_ENTRY;
1613 kvm_run->exit_reason = vcpu->svm->vmcb->control.exit_code;
c1150d8c 1614 post_kvm_run_save(vcpu, kvm_run);
6aa8b732
AK		 1615 return 0;
1616 }
1617
e2dec939
AK		 1618 r = handle_exit(vcpu, kvm_run);
1619 if (r > 0) {
6aa8b732
AK		 1620 if (signal_pending(current)) {
1621 ++kvm_stat.signal_exits;
c1150d8c
DL		 1622 post_kvm_run_save(vcpu, kvm_run);
1623 return -EINTR;
1624 }
1625
1626 if (dm_request_for_irq_injection(vcpu, kvm_run)) {
1627 ++kvm_stat.request_irq_exits;
1628 post_kvm_run_save(vcpu, kvm_run);
6aa8b732
AK		 1629 return -EINTR;
1630 }
1631 kvm_resched(vcpu);
1632 goto again;
1633 }
c1150d8c 1634 post_kvm_run_save(vcpu, kvm_run);
e2dec939 1635 return r;
6aa8b732
AK		 1636}
1637
1638static void svm_flush_tlb(struct kvm_vcpu *vcpu)
1639{
1640 force_new_asid(vcpu);
1641}
1642
1643static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
1644{
1645 vcpu->svm->vmcb->save.cr3 = root;
1646 force_new_asid(vcpu);
1647}
1648
1649static void svm_inject_page_fault(struct kvm_vcpu *vcpu,
1650 unsigned long addr,
1651 uint32_t err_code)
1652{
1653 uint32_t exit_int_info = vcpu->svm->vmcb->control.exit_int_info;
1654
1655 ++kvm_stat.pf_guest;
1656
1657 if (is_page_fault(exit_int_info)) {
1658
1659 vcpu->svm->vmcb->control.event_inj_err = 0;
1660 vcpu->svm->vmcb->control.event_inj = SVM_EVTINJ_VALID |
1661 SVM_EVTINJ_VALID_ERR |
1662 SVM_EVTINJ_TYPE_EXEPT |
1663 DF_VECTOR;
1664 return;
1665 }
1666 vcpu->cr2 = addr;
1667 vcpu->svm->vmcb->save.cr2 = addr;
1668 vcpu->svm->vmcb->control.event_inj = SVM_EVTINJ_VALID |
1669 SVM_EVTINJ_VALID_ERR |
1670 SVM_EVTINJ_TYPE_EXEPT |
1671 PF_VECTOR;
1672 vcpu->svm->vmcb->control.event_inj_err = err_code;
1673}
1674
1675
1676static int is_disabled(void)
1677{
1678 return 0;
1679}
1680
102d8325
IM		 1681static void
1682svm_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
1683{
1684 /*
1685 * Patch in the VMMCALL instruction:
1686 */
1687 hypercall[0] = 0x0f;
1688 hypercall[1] = 0x01;
1689 hypercall[2] = 0xd9;
1690 hypercall[3] = 0xc3;
1691}
1692
6aa8b732
AK		 1693static struct kvm_arch_ops svm_arch_ops = {
1694 .cpu_has_kvm_support = has_svm,
1695 .disabled_by_bios = is_disabled,
1696 .hardware_setup = svm_hardware_setup,
1697 .hardware_unsetup = svm_hardware_unsetup,
1698 .hardware_enable = svm_hardware_enable,
1699 .hardware_disable = svm_hardware_disable,
1700
1701 .vcpu_create = svm_create_vcpu,
1702 .vcpu_free = svm_free_vcpu,
1703
1704 .vcpu_load = svm_vcpu_load,
1705 .vcpu_put = svm_vcpu_put,
774c47f1 1706 .vcpu_decache = svm_vcpu_decache,
6aa8b732
AK		 1707
1708 .set_guest_debug = svm_guest_debug,
1709 .get_msr = svm_get_msr,
1710 .set_msr = svm_set_msr,
1711 .get_segment_base = svm_get_segment_base,
1712 .get_segment = svm_get_segment,
1713 .set_segment = svm_set_segment,
6aa8b732 1714 .get_cs_db_l_bits = svm_get_cs_db_l_bits,
399badf3 1715 .decache_cr0_cr4_guest_bits = svm_decache_cr0_cr4_guest_bits,
6aa8b732
AK		 1716 .set_cr0 = svm_set_cr0,
1717 .set_cr0_no_modeswitch = svm_set_cr0,
1718 .set_cr3 = svm_set_cr3,
1719 .set_cr4 = svm_set_cr4,
1720 .set_efer = svm_set_efer,
1721 .get_idt = svm_get_idt,
1722 .set_idt = svm_set_idt,
1723 .get_gdt = svm_get_gdt,
1724 .set_gdt = svm_set_gdt,
1725 .get_dr = svm_get_dr,
1726 .set_dr = svm_set_dr,
1727 .cache_regs = svm_cache_regs,
1728 .decache_regs = svm_decache_regs,
1729 .get_rflags = svm_get_rflags,
1730 .set_rflags = svm_set_rflags,
1731
1732 .invlpg = svm_invlpg,
1733 .tlb_flush = svm_flush_tlb,
1734 .inject_page_fault = svm_inject_page_fault,
1735
1736 .inject_gp = svm_inject_gp,
1737
1738 .run = svm_vcpu_run,
1739 .skip_emulated_instruction = skip_emulated_instruction,
1740 .vcpu_setup = svm_vcpu_setup,
102d8325 1741 .patch_hypercall = svm_patch_hypercall,
6aa8b732
AK		 1742};
1743
1744static int __init svm_init(void)
1745{
873a7c42 1746 return kvm_init_arch(&svm_arch_ops, THIS_MODULE);
6aa8b732
AK		 1747}
1748
1749static void __exit svm_exit(void)
1750{
1751 kvm_exit_arch();
1752}
1753
1754module_init(svm_init)
1755module_exit(svm_exit)
Ubuntu Hirsute Linux kernel mirror