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Avi Kivity6aa8b732006-12-10 02:21:36 -08001#ifndef __KVM_H
2#define __KVM_H
3
4/*
5 * This work is licensed under the terms of the GNU GPL, version 2. See
6 * the COPYING file in the top-level directory.
7 */
8
9#include <linux/types.h>
Christian Borntraegere56a7a22007-10-18 14:39:10 +020010#include <linux/hardirq.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080011#include <linux/list.h>
12#include <linux/mutex.h>
13#include <linux/spinlock.h>
Markus Rechberger06ff0d32007-05-27 10:46:52 +030014#include <linux/signal.h>
15#include <linux/sched.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080016#include <linux/mm.h>
Avi Kivity15ad7142007-07-11 18:17:21 +030017#include <linux/preempt.h>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040018#include <asm/signal.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080019
Avi Kivity6aa8b732006-12-10 02:21:36 -080020#include <linux/kvm.h>
Ingo Molnar102d8322007-02-19 14:37:47 +020021#include <linux/kvm_para.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080022
Rusty Russellf802a302007-07-17 23:32:55 +100023#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
24#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
25#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
Avi Kivity6aa8b732006-12-10 02:21:36 -080026
Avi Kivity6aa8b732006-12-10 02:21:36 -080027#define KVM_GUEST_CR0_MASK \
Rusty Russell707d92fa2007-07-17 23:19:08 +100028 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
29 | X86_CR0_NW | X86_CR0_CD)
Avi Kivity6aa8b732006-12-10 02:21:36 -080030#define KVM_VM_CR0_ALWAYS_ON \
Rusty Russell707d92fa2007-07-17 23:19:08 +100031 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
32 | X86_CR0_MP)
Avi Kivity6aa8b732006-12-10 02:21:36 -080033#define KVM_GUEST_CR4_MASK \
Rusty Russell66aee912007-07-17 23:34:16 +100034 (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
35#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
36#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
Avi Kivity6aa8b732006-12-10 02:21:36 -080037
38#define INVALID_PAGE (~(hpa_t)0)
39#define UNMAPPED_GVA (~(gpa_t)0)
40
Avi Kivityef9254d2007-06-05 14:37:09 +030041#define KVM_MAX_VCPUS 4
Avi Kivitye8207542007-03-30 16:54:30 +030042#define KVM_ALIAS_SLOTS 4
Izik Eidus2e2c6182007-08-20 18:11:00 +030043#define KVM_MEMORY_SLOTS 8
Izik Eiduse0d62c72007-10-24 23:57:46 +020044/* memory slots that does not exposed to userspace */
45#define KVM_PRIVATE_MEM_SLOTS 4
Izik Eidus82ce2c92007-10-02 18:52:55 +020046#define KVM_PERMILLE_MMU_PAGES 20
47#define KVM_MIN_ALLOC_MMU_PAGES 64
Avi Kivity7494c0c2007-05-01 18:24:38 +030048#define KVM_NUM_MMU_PAGES 1024
Avi Kivityebeace82007-01-05 16:36:47 -080049#define KVM_MIN_FREE_MMU_PAGES 5
50#define KVM_REFILL_PAGES 25
Avi Kivity06465c52007-02-28 20:46:53 +020051#define KVM_MAX_CPUID_ENTRIES 40
Avi Kivity6aa8b732006-12-10 02:21:36 -080052
Avi Kivity6aa8b732006-12-10 02:21:36 -080053#define DE_VECTOR 0
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050054#define UD_VECTOR 6
Anthony Liguori7807fa62007-04-23 09:17:21 -050055#define NM_VECTOR 7
Avi Kivity6aa8b732006-12-10 02:21:36 -080056#define DF_VECTOR 8
57#define TS_VECTOR 10
58#define NP_VECTOR 11
59#define SS_VECTOR 12
60#define GP_VECTOR 13
61#define PF_VECTOR 14
62
63#define SELECTOR_TI_MASK (1 << 2)
64#define SELECTOR_RPL_MASK 0x03
65
66#define IOPL_SHIFT 12
67
Avi Kivity039576c2007-03-20 12:46:50 +020068#define KVM_PIO_PAGE_OFFSET 1
69
Avi Kivity6aa8b732006-12-10 02:21:36 -080070/*
Avi Kivityd9e368d2007-06-07 19:18:30 +030071 * vcpu->requests bit members
72 */
Avi Kivity3176bc32007-10-16 17:22:08 +020073#define KVM_REQ_TLB_FLUSH 0
Avi Kivityd9e368d2007-06-07 19:18:30 +030074
75/*
Avi Kivity6aa8b732006-12-10 02:21:36 -080076 * Address types:
77 *
78 * gva - guest virtual address
79 * gpa - guest physical address
80 * gfn - guest frame number
81 * hva - host virtual address
82 * hpa - host physical address
83 * hfn - host frame number
84 */
85
86typedef unsigned long gva_t;
87typedef u64 gpa_t;
88typedef unsigned long gfn_t;
89
90typedef unsigned long hva_t;
91typedef u64 hpa_t;
92typedef unsigned long hfn_t;
93
Avi Kivitycea0f0e2007-01-05 16:36:43 -080094#define NR_PTE_CHAIN_ENTRIES 5
95
96struct kvm_pte_chain {
97 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
98 struct hlist_node link;
99};
100
101/*
102 * kvm_mmu_page_role, below, is defined as:
103 *
104 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
105 * bits 4:7 - page table level for this shadow (1-4)
106 * bits 8:9 - page table quadrant for 2-level guests
107 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
Avi Kivityd55e2cb2007-07-10 17:50:55 +0300108 * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800109 */
110union kvm_mmu_page_role {
111 unsigned word;
112 struct {
113 unsigned glevels : 4;
114 unsigned level : 4;
115 unsigned quadrant : 2;
116 unsigned pad_for_nice_hex_output : 6;
117 unsigned metaphysical : 1;
Avi Kivityd55e2cb2007-07-10 17:50:55 +0300118 unsigned hugepage_access : 3;
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800119 };
120};
121
Avi Kivity6aa8b732006-12-10 02:21:36 -0800122struct kvm_mmu_page {
123 struct list_head link;
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800124 struct hlist_node hash_link;
125
126 /*
127 * The following two entries are used to key the shadow page in the
128 * hash table.
129 */
130 gfn_t gfn;
131 union kvm_mmu_page_role role;
132
Avi Kivity47ad8e62007-05-06 15:50:58 +0300133 u64 *spt;
Izik Eidus290fc382007-09-27 14:11:22 +0200134 /* hold the gfn of each spte inside spt */
135 gfn_t *gfns;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800136 unsigned long slot_bitmap; /* One bit set per slot which has memory
137 * in this shadow page.
138 */
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800139 int multimapped; /* More than one parent_pte? */
Avi Kivity3bb65a22007-01-05 16:36:51 -0800140 int root_count; /* Currently serving as active root */
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800141 union {
142 u64 *parent_pte; /* !multimapped */
143 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
144 };
Avi Kivity6aa8b732006-12-10 02:21:36 -0800145};
146
Avi Kivity6aa8b732006-12-10 02:21:36 -0800147struct kvm_vcpu;
Rusty Russellc16f8622007-07-30 21:12:19 +1000148extern struct kmem_cache *kvm_vcpu_cache;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800149
150/*
151 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
152 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
153 * mode.
154 */
155struct kvm_mmu {
156 void (*new_cr3)(struct kvm_vcpu *vcpu);
157 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800158 void (*free)(struct kvm_vcpu *vcpu);
159 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivityc7addb92007-09-16 18:58:32 +0200160 void (*prefetch_page)(struct kvm_vcpu *vcpu,
161 struct kvm_mmu_page *page);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800162 hpa_t root_hpa;
163 int root_level;
164 int shadow_root_level;
Avi Kivity17ac10a2007-01-05 16:36:40 -0800165
166 u64 *pae_root;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800167};
168
Izik Eidus290fc382007-09-27 14:11:22 +0200169#define KVM_NR_MEM_OBJS 40
Avi Kivity714b93d2007-01-05 16:36:53 -0800170
171struct kvm_mmu_memory_cache {
172 int nobjs;
173 void *objects[KVM_NR_MEM_OBJS];
174};
175
176/*
177 * We don't want allocation failures within the mmu code, so we preallocate
178 * enough memory for a single page fault in a cache.
179 */
Avi Kivity6aa8b732006-12-10 02:21:36 -0800180struct kvm_guest_debug {
181 int enabled;
182 unsigned long bp[4];
183 int singlestep;
184};
185
186enum {
187 VCPU_REGS_RAX = 0,
188 VCPU_REGS_RCX = 1,
189 VCPU_REGS_RDX = 2,
190 VCPU_REGS_RBX = 3,
191 VCPU_REGS_RSP = 4,
192 VCPU_REGS_RBP = 5,
193 VCPU_REGS_RSI = 6,
194 VCPU_REGS_RDI = 7,
Avi Kivity05b3e0c2006-12-13 00:33:45 -0800195#ifdef CONFIG_X86_64
Avi Kivity6aa8b732006-12-10 02:21:36 -0800196 VCPU_REGS_R8 = 8,
197 VCPU_REGS_R9 = 9,
198 VCPU_REGS_R10 = 10,
199 VCPU_REGS_R11 = 11,
200 VCPU_REGS_R12 = 12,
201 VCPU_REGS_R13 = 13,
202 VCPU_REGS_R14 = 14,
203 VCPU_REGS_R15 = 15,
204#endif
205 NR_VCPU_REGS
206};
207
208enum {
209 VCPU_SREG_CS,
210 VCPU_SREG_DS,
211 VCPU_SREG_ES,
212 VCPU_SREG_FS,
213 VCPU_SREG_GS,
214 VCPU_SREG_SS,
215 VCPU_SREG_TR,
216 VCPU_SREG_LDTR,
217};
218
Laurent Vivier34273182007-09-18 11:27:37 +0200219#include "x86_emulate.h"
220
Avi Kivity039576c2007-03-20 12:46:50 +0200221struct kvm_pio_request {
222 unsigned long count;
223 int cur_count;
224 struct page *guest_pages[2];
225 unsigned guest_page_offset;
226 int in;
Eddie Dong74906342007-06-19 18:05:03 +0300227 int port;
Avi Kivity039576c2007-03-20 12:46:50 +0200228 int size;
229 int string;
230 int down;
231 int rep;
232};
233
Avi Kivity1165f5f2007-04-19 17:27:43 +0300234struct kvm_stat {
235 u32 pf_fixed;
236 u32 pf_guest;
237 u32 tlb_flush;
238 u32 invlpg;
239
240 u32 exits;
241 u32 io_exits;
242 u32 mmio_exits;
243 u32 signal_exits;
244 u32 irq_window_exits;
245 u32 halt_exits;
Eddie Dongb6958ce2007-07-18 12:15:21 +0300246 u32 halt_wakeup;
Avi Kivity1165f5f2007-04-19 17:27:43 +0300247 u32 request_irq_exits;
248 u32 irq_exits;
Avi Kivitye6adf282007-04-30 16:07:54 +0300249 u32 light_exits;
Eddie Dong2cc51562007-05-21 07:28:09 +0300250 u32 efer_reload;
Avi Kivity1165f5f2007-04-19 17:27:43 +0300251};
252
Gregory Haskins2eeb2e92007-05-31 14:08:53 -0400253struct kvm_io_device {
254 void (*read)(struct kvm_io_device *this,
255 gpa_t addr,
256 int len,
257 void *val);
258 void (*write)(struct kvm_io_device *this,
259 gpa_t addr,
260 int len,
261 const void *val);
262 int (*in_range)(struct kvm_io_device *this, gpa_t addr);
263 void (*destructor)(struct kvm_io_device *this);
264
265 void *private;
266};
267
268static inline void kvm_iodevice_read(struct kvm_io_device *dev,
269 gpa_t addr,
270 int len,
271 void *val)
272{
273 dev->read(dev, addr, len, val);
274}
275
276static inline void kvm_iodevice_write(struct kvm_io_device *dev,
277 gpa_t addr,
278 int len,
279 const void *val)
280{
281 dev->write(dev, addr, len, val);
282}
283
284static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
285{
286 return dev->in_range(dev, addr);
287}
288
289static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
290{
Eddie Dong74906342007-06-19 18:05:03 +0300291 if (dev->destructor)
292 dev->destructor(dev);
Gregory Haskins2eeb2e92007-05-31 14:08:53 -0400293}
294
295/*
296 * It would be nice to use something smarter than a linear search, TBD...
297 * Thankfully we dont expect many devices to register (famous last words :),
298 * so until then it will suffice. At least its abstracted so we can change
299 * in one place.
300 */
301struct kvm_io_bus {
302 int dev_count;
303#define NR_IOBUS_DEVS 6
304 struct kvm_io_device *devs[NR_IOBUS_DEVS];
305};
306
307void kvm_io_bus_init(struct kvm_io_bus *bus);
308void kvm_io_bus_destroy(struct kvm_io_bus *bus);
309struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
310void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
311 struct kvm_io_device *dev);
312
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800313#ifdef CONFIG_HAS_IOMEM
314#define KVM_VCPU_MMIO \
315 int mmio_needed; \
316 int mmio_read_completed; \
317 int mmio_is_write; \
318 int mmio_size; \
319 unsigned char mmio_data[8]; \
Avi Kivity6aa8b732006-12-10 02:21:36 -0800320 gpa_t mmio_phys_addr;
321
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800322#else
323#define KVM_VCPU_MMIO
Avi Kivity1961d272007-03-05 19:46:05 +0200324
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800325#endif
Avi Kivity1165f5f2007-04-19 17:27:43 +0300326
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800327#define KVM_VCPU_COMM \
328 struct kvm *kvm; \
329 struct preempt_notifier preempt_notifier; \
330 int vcpu_id; \
331 struct mutex mutex; \
332 int cpu; \
333 struct kvm_run *run; \
334 int guest_mode; \
335 unsigned long requests; \
336 struct kvm_guest_debug guest_debug; \
337 int fpu_active; \
338 int guest_fpu_loaded; \
339 wait_queue_head_t wq; \
340 int sigset_active; \
341 sigset_t sigset; \
342 struct kvm_stat stat; \
343 KVM_VCPU_MMIO
Avi Kivity6aa8b732006-12-10 02:21:36 -0800344
Avi Kivitye8207542007-03-30 16:54:30 +0300345struct kvm_mem_alias {
346 gfn_t base_gfn;
347 unsigned long npages;
348 gfn_t target_gfn;
349};
350
Avi Kivity6aa8b732006-12-10 02:21:36 -0800351struct kvm_memory_slot {
352 gfn_t base_gfn;
353 unsigned long npages;
354 unsigned long flags;
Izik Eidus290fc382007-09-27 14:11:22 +0200355 unsigned long *rmap;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800356 unsigned long *dirty_bitmap;
Izik Eidus8a7ae052007-10-18 11:09:33 +0200357 unsigned long userspace_addr;
Izik Eidus80b14b52007-10-25 11:54:04 +0200358 int user_alloc;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800359};
360
361struct kvm {
Shaohua Li11ec2802007-07-23 14:51:37 +0800362 struct mutex lock; /* protects everything except vcpus */
Avi Kivitye8207542007-03-30 16:54:30 +0300363 int naliases;
364 struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
Avi Kivity6aa8b732006-12-10 02:21:36 -0800365 int nmemslots;
Izik Eiduse0d62c72007-10-24 23:57:46 +0200366 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
367 KVM_PRIVATE_MEM_SLOTS];
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800368 /*
369 * Hash table of struct kvm_mmu_page.
370 */
Avi Kivity6aa8b732006-12-10 02:21:36 -0800371 struct list_head active_mmu_pages;
Izik Eidus82ce2c92007-10-02 18:52:55 +0200372 unsigned int n_free_mmu_pages;
373 unsigned int n_requested_mmu_pages;
374 unsigned int n_alloc_mmu_pages;
Avi Kivitycea0f0e2007-01-05 16:36:43 -0800375 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000376 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
Avi Kivitycd4a4e52007-01-05 16:36:38 -0800377 unsigned long rmap_overflow;
Avi Kivity133de902007-02-12 00:54:44 -0800378 struct list_head vm_list;
Avi Kivitybccf2152007-02-21 18:04:26 +0200379 struct file *filp;
Gregory Haskins2eeb2e92007-05-31 14:08:53 -0400380 struct kvm_io_bus mmio_bus;
Eddie Dong74906342007-06-19 18:05:03 +0300381 struct kvm_io_bus pio_bus;
Eddie Dong85f455f2007-07-06 12:20:49 +0300382 struct kvm_pic *vpic;
Eddie Dong1fd4f2a2007-07-18 12:03:39 +0300383 struct kvm_ioapic *vioapic;
He, Qing932f72a2007-09-03 17:01:36 +0300384 int round_robin_prev_vcpu;
Izik Eiduscbc94022007-10-25 00:29:55 +0200385 unsigned int tss_addr;
Sheng Yangf78e0e22007-10-29 09:40:42 +0800386 struct page *apic_access_page;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800387};
388
Eddie Dong85f455f2007-07-06 12:20:49 +0300389static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
390{
391 return kvm->vpic;
392}
393
Eddie Dong1fd4f2a2007-07-18 12:03:39 +0300394static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
395{
396 return kvm->vioapic;
397}
398
Eddie Dong85f455f2007-07-06 12:20:49 +0300399static inline int irqchip_in_kernel(struct kvm *kvm)
400{
401 return pic_irqchip(kvm) != 0;
402}
403
Avi Kivity6aa8b732006-12-10 02:21:36 -0800404struct descriptor_table {
405 u16 limit;
406 unsigned long base;
407} __attribute__((packed));
408
Christian Ehrhardtcbdd1be2007-09-09 15:41:59 +0300409struct kvm_x86_ops {
Avi Kivity6aa8b732006-12-10 02:21:36 -0800410 int (*cpu_has_kvm_support)(void); /* __init */
411 int (*disabled_by_bios)(void); /* __init */
412 void (*hardware_enable)(void *dummy); /* __init */
413 void (*hardware_disable)(void *dummy);
Yang, Sheng002c7f72007-07-31 14:23:01 +0300414 void (*check_processor_compatibility)(void *rtn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800415 int (*hardware_setup)(void); /* __init */
416 void (*hardware_unsetup)(void); /* __exit */
417
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000418 /* Create, but do not attach this VCPU */
419 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800420 void (*vcpu_free)(struct kvm_vcpu *vcpu);
Avi Kivitye00c8cf2007-10-21 11:00:39 +0200421 int (*vcpu_reset)(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800422
Avi Kivity04d2cc72007-09-10 18:10:54 +0300423 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
Avi Kivity15ad7142007-07-11 18:17:21 +0300424 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800425 void (*vcpu_put)(struct kvm_vcpu *vcpu);
Avi Kivity774c47f2007-02-12 00:54:47 -0800426 void (*vcpu_decache)(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800427
428 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
429 struct kvm_debug_guest *dbg);
Avi Kivity04d2cc72007-09-10 18:10:54 +0300430 void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800431 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
432 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
433 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
434 void (*get_segment)(struct kvm_vcpu *vcpu,
435 struct kvm_segment *var, int seg);
436 void (*set_segment)(struct kvm_vcpu *vcpu,
437 struct kvm_segment *var, int seg);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800438 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
Anthony Liguori25c4c272007-04-27 09:29:21 +0300439 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800440 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800441 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
442 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
443 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
444 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
445 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
446 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
447 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
448 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
449 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
450 int *exception);
451 void (*cache_regs)(struct kvm_vcpu *vcpu);
452 void (*decache_regs)(struct kvm_vcpu *vcpu);
453 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
454 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
455
Avi Kivity6aa8b732006-12-10 02:21:36 -0800456 void (*tlb_flush)(struct kvm_vcpu *vcpu);
457 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
458 unsigned long addr, u32 err_code);
459
460 void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
461
Avi Kivity04d2cc72007-09-10 18:10:54 +0300462 void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
463 int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800464 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
Ingo Molnar102d8322007-02-19 14:37:47 +0200465 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
466 unsigned char *hypercall_addr);
Eddie Dong2a8067f2007-08-06 16:29:07 +0300467 int (*get_irq)(struct kvm_vcpu *vcpu);
468 void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
Avi Kivity04d2cc72007-09-10 18:10:54 +0300469 void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
470 void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
471 struct kvm_run *run);
Izik Eiduscbc94022007-10-25 00:29:55 +0200472
473 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800474};
475
Christian Ehrhardtcbdd1be2007-09-09 15:41:59 +0300476extern struct kvm_x86_ops *kvm_x86_ops;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800477
Rusty Russellf0242472007-08-01 10:48:02 +1000478/* The guest did something we don't support. */
479#define pr_unimpl(vcpu, fmt, ...) \
480 do { \
481 if (printk_ratelimit()) \
482 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
483 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
Mike Dayd77c26f2007-10-08 09:02:08 -0400484 } while (0)
Rusty Russellf0242472007-08-01 10:48:02 +1000485
Avi Kivity6aa8b732006-12-10 02:21:36 -0800486#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
487#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
488
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000489int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
490void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
491
Carsten Otte313a3dc2007-10-11 19:16:52 +0200492void vcpu_load(struct kvm_vcpu *vcpu);
493void vcpu_put(struct kvm_vcpu *vcpu);
494
495
Christian Ehrhardtcbdd1be2007-09-09 15:41:59 +0300496int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
Rusty Russellc16f8622007-07-30 21:12:19 +1000497 struct module *module);
Christian Ehrhardtcbdd1be2007-09-09 15:41:59 +0300498void kvm_exit_x86(void);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800499
Avi Kivityb5a33a72007-04-15 16:31:09 +0300500int kvm_mmu_module_init(void);
501void kvm_mmu_module_exit(void);
502
Avi Kivity6aa8b732006-12-10 02:21:36 -0800503void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
Ingo Molnar8018c272006-12-29 16:50:01 -0800504int kvm_mmu_create(struct kvm_vcpu *vcpu);
505int kvm_mmu_setup(struct kvm_vcpu *vcpu);
Avi Kivityc7addb92007-09-16 18:58:32 +0200506void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800507
508int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
Avi Kivity90cb0522007-07-17 13:04:56 +0300509void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
510void kvm_mmu_zap_all(struct kvm *kvm);
Izik Eidus82ce2c92007-10-02 18:52:55 +0200511void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800512
Anthony Liguori4a4c9922007-10-10 20:08:41 -0500513hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800514#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
515#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
516static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
517hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivity039576c2007-03-20 12:46:50 +0200518struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800519
Izik Eiduscea7bb22007-10-17 19:17:48 +0200520extern struct page *bad_page;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800521
Izik Eiduscea7bb22007-10-17 19:17:48 +0200522int is_error_page(struct page *page);
Izik Eidusf9d46eb2007-11-11 22:02:22 +0200523int kvm_is_error_hva(unsigned long addr);
Izik Eidus210c7c42007-10-24 23:52:57 +0200524int kvm_set_memory_region(struct kvm *kvm,
525 struct kvm_userspace_memory_region *mem,
526 int user_alloc);
Sheng Yangf78e0e22007-10-29 09:40:42 +0800527int __kvm_set_memory_region(struct kvm *kvm,
528 struct kvm_userspace_memory_region *mem,
529 int user_alloc);
Izik Eidus290fc382007-09-27 14:11:22 +0200530gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity954bbbc2007-03-30 14:02:32 +0300531struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
Izik Eidus8a7ae052007-10-18 11:09:33 +0200532void kvm_release_page(struct page *page);
Izik Eidus195aefd2007-10-01 22:14:18 +0200533int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
534 int len);
535int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
536int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
537 int offset, int len);
538int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
539 unsigned long len);
540int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
541int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800542struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
Izik Eiduse0d62c72007-10-24 23:57:46 +0200543int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800544void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
545
546enum emulation_result {
547 EMULATE_DONE, /* no further processing */
548 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
549 EMULATE_FAIL, /* can't emulate this instruction */
550};
551
552int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
Laurent Vivier34273182007-09-18 11:27:37 +0200553 unsigned long cr2, u16 error_code, int no_decode);
Avi Kivity054b1362007-09-12 13:21:09 +0300554void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800555void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
556void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
557void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
558 unsigned long *rflags);
559
560unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
561void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
562 unsigned long *rflags);
Avi Kivity35f3f282007-07-17 14:20:30 +0300563int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
564int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800565
566struct x86_emulate_ctxt;
567
Mike Dayd77c26f2007-10-08 09:02:08 -0400568int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
Laurent Vivier3090dd72007-08-05 10:43:32 +0300569 int size, unsigned port);
570int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
571 int size, unsigned long count, int down,
572 gva_t address, int rep, unsigned port);
Avi Kivity06465c52007-02-28 20:46:53 +0200573void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
Avi Kivityd3bef152007-06-05 15:53:05 +0300574int kvm_emulate_halt(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800575int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
576int emulate_clts(struct kvm_vcpu *vcpu);
Mike Dayd77c26f2007-10-08 09:02:08 -0400577int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
Avi Kivity6aa8b732006-12-10 02:21:36 -0800578 unsigned long *dest);
579int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
580 unsigned long value);
581
582void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
583void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
584void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
585void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
Eddie Dong7017fc32007-07-18 11:34:57 +0300586unsigned long get_cr8(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800587void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
Rusty Russell1747fb72007-09-06 01:21:32 +1000588void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800589
Avi Kivity3bab1f52006-12-29 16:49:48 -0800590int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
591int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800592
593void fx_init(struct kvm_vcpu *vcpu);
594
Hollis Blanchard8776e512007-10-31 17:24:24 -0500595void kvm_vcpu_block(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800596void kvm_resched(struct kvm_vcpu *vcpu);
Avi Kivity7702fd12007-06-14 16:27:40 +0300597void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
598void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
Avi Kivityd9e368d2007-06-07 19:18:30 +0300599void kvm_flush_remote_tlbs(struct kvm *kvm);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800600
Laurent Viviere7d5d762007-07-30 13:41:19 +0300601int emulator_read_std(unsigned long addr,
Mike Dayd77c26f2007-10-08 09:02:08 -0400602 void *val,
Laurent Viviere7d5d762007-07-30 13:41:19 +0300603 unsigned int bytes,
604 struct kvm_vcpu *vcpu);
605int emulator_write_emulated(unsigned long addr,
606 const void *val,
607 unsigned int bytes,
608 struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800609
610unsigned long segment_base(u16 selector);
611
Avi Kivity09072da2007-05-01 14:16:52 +0300612void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
Shaohua Life551882007-07-23 14:51:39 +0800613 const u8 *new, int bytes);
Avi Kivitya4360362007-01-05 16:36:45 -0800614int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivity22d95b12007-09-14 20:26:06 +0300615void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
Avi Kivity17c3ba92007-06-04 15:58:30 +0300616int kvm_mmu_load(struct kvm_vcpu *vcpu);
617void kvm_mmu_unload(struct kvm_vcpu *vcpu);
Avi Kivityebeace82007-01-05 16:36:47 -0800618
Anthony Liguori7aa81cc2007-09-17 14:57:50 -0500619int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
620
621int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
Avi Kivity270fd9b2007-02-19 14:37:47 +0200622
Carsten Otte043405e2007-10-10 17:16:19 +0200623long kvm_arch_dev_ioctl(struct file *filp,
624 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200625long kvm_arch_vcpu_ioctl(struct file *filp,
626 unsigned int ioctl, unsigned long arg);
627void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
628void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
Carsten Otte1fe779f2007-10-29 16:08:35 +0100629int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
630 struct
631 kvm_userspace_memory_region *mem,
632 int user_alloc);
633long kvm_arch_vm_ioctl(struct file *filp,
634 unsigned int ioctl, unsigned long arg);
635void kvm_arch_destroy_vm(struct kvm *kvm);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200636
Hollis Blanchardd0752062007-10-31 17:24:25 -0500637int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
638int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
639
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500640int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
641int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
642int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
643 struct kvm_sregs *sregs);
644int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
645 struct kvm_sregs *sregs);
646int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
647 struct kvm_debug_guest *dbg);
648int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
649
Carsten Otte043405e2007-10-10 17:16:19 +0200650__init void kvm_arch_init(void);
651
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200652static inline void kvm_guest_enter(void)
653{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200654 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200655 current->flags |= PF_VCPU;
656}
657
658static inline void kvm_guest_exit(void)
659{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200660 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200661 current->flags &= ~PF_VCPU;
662}
663
Avi Kivity6aa8b732006-12-10 02:21:36 -0800664static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
665{
666 return slot - kvm->memslots;
667}
668
669static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
670{
671 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
672
Markus Rechberger5972e952007-02-19 14:37:47 +0200673 return (struct kvm_mmu_page *)page_private(page);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800674}
675
676static inline u16 read_fs(void)
677{
678 u16 seg;
Mike Dayd77c26f2007-10-08 09:02:08 -0400679 asm("mov %%fs, %0" : "=g"(seg));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800680 return seg;
681}
682
683static inline u16 read_gs(void)
684{
685 u16 seg;
Mike Dayd77c26f2007-10-08 09:02:08 -0400686 asm("mov %%gs, %0" : "=g"(seg));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800687 return seg;
688}
689
690static inline u16 read_ldt(void)
691{
692 u16 ldt;
Mike Dayd77c26f2007-10-08 09:02:08 -0400693 asm("sldt %0" : "=g"(ldt));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800694 return ldt;
695}
696
697static inline void load_fs(u16 sel)
698{
Mike Dayd77c26f2007-10-08 09:02:08 -0400699 asm("mov %0, %%fs" : : "rm"(sel));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800700}
701
702static inline void load_gs(u16 sel)
703{
Mike Dayd77c26f2007-10-08 09:02:08 -0400704 asm("mov %0, %%gs" : : "rm"(sel));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800705}
706
707#ifndef load_ldt
708static inline void load_ldt(u16 sel)
709{
Mike Dayd77c26f2007-10-08 09:02:08 -0400710 asm("lldt %0" : : "rm"(sel));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800711}
712#endif
713
714static inline void get_idt(struct descriptor_table *table)
715{
Mike Dayd77c26f2007-10-08 09:02:08 -0400716 asm("sidt %0" : "=m"(*table));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800717}
718
719static inline void get_gdt(struct descriptor_table *table)
720{
Mike Dayd77c26f2007-10-08 09:02:08 -0400721 asm("sgdt %0" : "=m"(*table));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800722}
723
724static inline unsigned long read_tr_base(void)
725{
726 u16 tr;
Mike Dayd77c26f2007-10-08 09:02:08 -0400727 asm("str %0" : "=g"(tr));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800728 return segment_base(tr);
729}
730
Avi Kivity05b3e0c2006-12-13 00:33:45 -0800731#ifdef CONFIG_X86_64
Avi Kivity6aa8b732006-12-10 02:21:36 -0800732static inline unsigned long read_msr(unsigned long msr)
733{
734 u64 value;
735
736 rdmsrl(msr, value);
737 return value;
738}
739#endif
740
Rusty Russellb114b082007-07-30 21:13:43 +1000741static inline void fx_save(struct i387_fxsave_struct *image)
Avi Kivity6aa8b732006-12-10 02:21:36 -0800742{
Mike Dayd77c26f2007-10-08 09:02:08 -0400743 asm("fxsave (%0)":: "r" (image));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800744}
745
Rusty Russellb114b082007-07-30 21:13:43 +1000746static inline void fx_restore(struct i387_fxsave_struct *image)
Avi Kivity6aa8b732006-12-10 02:21:36 -0800747{
Mike Dayd77c26f2007-10-08 09:02:08 -0400748 asm("fxrstor (%0)":: "r" (image));
Avi Kivity6aa8b732006-12-10 02:21:36 -0800749}
750
751static inline void fpu_init(void)
752{
Mike Dayd77c26f2007-10-08 09:02:08 -0400753 asm("finit");
Avi Kivity6aa8b732006-12-10 02:21:36 -0800754}
755
756static inline u32 get_rdx_init_val(void)
757{
758 return 0x600; /* P6 family */
759}
760
761#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
762#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
763#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
764#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
765#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
766#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
767#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
768#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
769#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
770
771#define MSR_IA32_TIME_STAMP_COUNTER 0x010
772
773#define TSS_IOPB_BASE_OFFSET 0x66
774#define TSS_BASE_SIZE 0x68
775#define TSS_IOPB_SIZE (65536 / 8)
776#define TSS_REDIRECTION_SIZE (256 / 8)
777#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
778
Hollis Blanchard417bc302007-10-31 17:24:23 -0500779struct kvm_stats_debugfs_item {
780 const char *name;
781 int offset;
782 struct dentry *dentry;
783};
784extern struct kvm_stats_debugfs_item debugfs_entries[];
785
Avi Kivity6aa8b732006-12-10 02:21:36 -0800786#endif