1 /*
2  * kvm_host.h: used for kvm module, and hold ia64-specific sections.
3  *
4  * Copyright (C) 2007, Intel Corporation.
5  *
6  * Xiantao Zhang <xiantao.zhang@intel.com>
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms and conditions of the GNU General Public License,
10  * version 2, as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  * more details.
16  *
17  * You should have received a copy of the GNU General Public License along with
18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
19  * Place - Suite 330, Boston, MA 02111-1307 USA.
20  *
21  */
22 
23 #ifndef __ASM_KVM_HOST_H
24 #define __ASM_KVM_HOST_H
25 
26 #define KVM_MEMORY_SLOTS 32
27 /* memory slots that does not exposed to userspace */
28 #define KVM_PRIVATE_MEM_SLOTS 4
29 
30 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
31 
32 /* define exit reasons from vmm to kvm*/
33 #define EXIT_REASON_VM_PANIC		0
34 #define EXIT_REASON_MMIO_INSTRUCTION	1
35 #define EXIT_REASON_PAL_CALL		2
36 #define EXIT_REASON_SAL_CALL		3
37 #define EXIT_REASON_SWITCH_RR6		4
38 #define EXIT_REASON_VM_DESTROY		5
39 #define EXIT_REASON_EXTERNAL_INTERRUPT	6
40 #define EXIT_REASON_IPI			7
41 #define EXIT_REASON_PTC_G		8
42 #define EXIT_REASON_DEBUG		20
43 
44 /*Define vmm address space and vm data space.*/
45 #define KVM_VMM_SIZE (__IA64_UL_CONST(16)<<20)
46 #define KVM_VMM_SHIFT 24
47 #define KVM_VMM_BASE 0xD000000000000000
48 #define VMM_SIZE (__IA64_UL_CONST(8)<<20)
49 
50 /*
51  * Define vm_buffer, used by PAL Services, base address.
52  * Note: vm_buffer is in the VMM-BLOCK, the size must be < 8M
53  */
54 #define KVM_VM_BUFFER_BASE (KVM_VMM_BASE + VMM_SIZE)
55 #define KVM_VM_BUFFER_SIZE (__IA64_UL_CONST(8)<<20)
56 
57 /*
58  * kvm guest's data area looks as follow:
59  *
60  *            +----------------------+	-------	KVM_VM_DATA_SIZE
61  *	      |	    vcpu[n]'s data   |	 |     ___________________KVM_STK_OFFSET
62  *     	      |			     |	 |    /			  |
63  *     	      |	       ..........    |	 |   /vcpu's struct&stack |
64  *     	      |	       ..........    |	 |  /---------------------|---- 0
65  *	      |	    vcpu[5]'s data   |	 | /	   vpd		  |
66  *	      |	    vcpu[4]'s data   |	 |/-----------------------|
67  *	      |	    vcpu[3]'s data   |	 /	   vtlb		  |
68  *	      |	    vcpu[2]'s data   |	/|------------------------|
69  *	      |	    vcpu[1]'s data   |/  |	   vhpt		  |
70  *	      |	    vcpu[0]'s data   |____________________________|
71  *            +----------------------+	 |
72  *	      |	   memory dirty log  |	 |
73  *            +----------------------+	 |
74  *	      |	   vm's data struct  |	 |
75  *            +----------------------+	 |
76  *	      |			     |	 |
77  *	      |			     |	 |
78  *	      |			     |	 |
79  *	      |			     |	 |
80  *	      |			     |	 |
81  *	      |			     |	 |
82  *	      |			     |	 |
83  *	      |	  vm's p2m table  |	 |
84  *	      |			     |	 |
85  *            |			     |	 |
86  *	      |			     |	 |  |
87  * vm's data->|			     |   |  |
88  *	      +----------------------+ ------- 0
89  * To support large memory, needs to increase the size of p2m.
90  * To support more vcpus, needs to ensure it has enough space to
91  * hold vcpus' data.
92  */
93 
94 #define KVM_VM_DATA_SHIFT	26
95 #define KVM_VM_DATA_SIZE	(__IA64_UL_CONST(1) << KVM_VM_DATA_SHIFT)
96 #define KVM_VM_DATA_BASE	(KVM_VMM_BASE + KVM_VM_DATA_SIZE)
97 
98 #define KVM_P2M_BASE		KVM_VM_DATA_BASE
99 #define KVM_P2M_SIZE		(__IA64_UL_CONST(24) << 20)
100 
101 #define VHPT_SHIFT		16
102 #define VHPT_SIZE		(__IA64_UL_CONST(1) << VHPT_SHIFT)
103 #define VHPT_NUM_ENTRIES	(__IA64_UL_CONST(1) << (VHPT_SHIFT-5))
104 
105 #define VTLB_SHIFT		16
106 #define VTLB_SIZE		(__IA64_UL_CONST(1) << VTLB_SHIFT)
107 #define VTLB_NUM_ENTRIES	(1UL << (VHPT_SHIFT-5))
108 
109 #define VPD_SHIFT		16
110 #define VPD_SIZE		(__IA64_UL_CONST(1) << VPD_SHIFT)
111 
112 #define VCPU_STRUCT_SHIFT	16
113 #define VCPU_STRUCT_SIZE	(__IA64_UL_CONST(1) << VCPU_STRUCT_SHIFT)
114 
115 /*
116  * This must match KVM_IA64_VCPU_STACK_{SHIFT,SIZE} arch/ia64/include/asm/kvm.h
117  */
118 #define KVM_STK_SHIFT		16
119 #define KVM_STK_OFFSET		(__IA64_UL_CONST(1)<< KVM_STK_SHIFT)
120 
121 #define KVM_VM_STRUCT_SHIFT	19
122 #define KVM_VM_STRUCT_SIZE	(__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT)
123 
124 #define KVM_MEM_DIRY_LOG_SHIFT	19
125 #define KVM_MEM_DIRTY_LOG_SIZE (__IA64_UL_CONST(1) << KVM_MEM_DIRY_LOG_SHIFT)
126 
127 #ifndef __ASSEMBLY__
128 
129 /*Define the max vcpus and memory for Guests.*/
130 #define KVM_MAX_VCPUS	(KVM_VM_DATA_SIZE - KVM_P2M_SIZE - KVM_VM_STRUCT_SIZE -\
131 			KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data)
132 #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT)
133 
134 #define VMM_LOG_LEN 256
135 
136 #include <linux/types.h>
137 #include <linux/mm.h>
138 #include <linux/kvm.h>
139 #include <linux/kvm_para.h>
140 #include <linux/kvm_types.h>
141 
142 #include <asm/pal.h>
143 #include <asm/sal.h>
144 #include <asm/page.h>
145 
146 struct kvm_vcpu_data {
147 	char vcpu_vhpt[VHPT_SIZE];
148 	char vcpu_vtlb[VTLB_SIZE];
149 	char vcpu_vpd[VPD_SIZE];
150 	char vcpu_struct[VCPU_STRUCT_SIZE];
151 };
152 
153 struct kvm_vm_data {
154 	char kvm_p2m[KVM_P2M_SIZE];
155 	char kvm_vm_struct[KVM_VM_STRUCT_SIZE];
156 	char kvm_mem_dirty_log[KVM_MEM_DIRTY_LOG_SIZE];
157 	struct kvm_vcpu_data vcpu_data[KVM_MAX_VCPUS];
158 };
159 
160 #define VCPU_BASE(n)	(KVM_VM_DATA_BASE + \
161 				offsetof(struct kvm_vm_data, vcpu_data[n]))
162 #define KVM_VM_BASE	(KVM_VM_DATA_BASE + \
163 				offsetof(struct kvm_vm_data, kvm_vm_struct))
164 #define KVM_MEM_DIRTY_LOG_BASE	KVM_VM_DATA_BASE + \
165 				offsetof(struct kvm_vm_data, kvm_mem_dirty_log)
166 
167 #define VHPT_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vhpt))
168 #define VTLB_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vtlb))
169 #define VPD_BASE(n)  (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vpd))
170 #define VCPU_STRUCT_BASE(n)	(VCPU_BASE(n) + \
171 				offsetof(struct kvm_vcpu_data, vcpu_struct))
172 
173 /*IO section definitions*/
174 #define IOREQ_READ      1
175 #define IOREQ_WRITE     0
176 
177 #define STATE_IOREQ_NONE        0
178 #define STATE_IOREQ_READY       1
179 #define STATE_IOREQ_INPROCESS   2
180 #define STATE_IORESP_READY      3
181 
182 /*Guest Physical address layout.*/
183 #define GPFN_MEM        (0UL << 60) /* Guest pfn is normal mem */
184 #define GPFN_FRAME_BUFFER   (1UL << 60) /* VGA framebuffer */
185 #define GPFN_LOW_MMIO       (2UL << 60) /* Low MMIO range */
186 #define GPFN_PIB        (3UL << 60) /* PIB base */
187 #define GPFN_IOSAPIC        (4UL << 60) /* IOSAPIC base */
188 #define GPFN_LEGACY_IO      (5UL << 60) /* Legacy I/O base */
189 #define GPFN_GFW        (6UL << 60) /* Guest Firmware */
190 #define GPFN_PHYS_MMIO      (7UL << 60) /* Directed MMIO Range */
191 
192 #define GPFN_IO_MASK        (7UL << 60) /* Guest pfn is I/O type */
193 #define GPFN_INV_MASK       (1UL << 63) /* Guest pfn is invalid */
194 #define INVALID_MFN       (~0UL)
195 #define MEM_G   (1UL << 30)
196 #define MEM_M   (1UL << 20)
197 #define MMIO_START       (3 * MEM_G)
198 #define MMIO_SIZE        (512 * MEM_M)
199 #define VGA_IO_START     0xA0000UL
200 #define VGA_IO_SIZE      0x20000
201 #define LEGACY_IO_START  (MMIO_START + MMIO_SIZE)
202 #define LEGACY_IO_SIZE   (64 * MEM_M)
203 #define IO_SAPIC_START   0xfec00000UL
204 #define IO_SAPIC_SIZE    0x100000
205 #define PIB_START 0xfee00000UL
206 #define PIB_SIZE 0x200000
207 #define GFW_START        (4 * MEM_G - 16 * MEM_M)
208 #define GFW_SIZE         (16 * MEM_M)
209 
210 /*Deliver mode, defined for ioapic.c*/
211 #define dest_Fixed IOSAPIC_FIXED
212 #define dest_LowestPrio IOSAPIC_LOWEST_PRIORITY
213 
214 #define NMI_VECTOR      		2
215 #define ExtINT_VECTOR       		0
216 #define NULL_VECTOR     		(-1)
217 #define IA64_SPURIOUS_INT_VECTOR    	0x0f
218 
219 #define VCPU_LID(v) (((u64)(v)->vcpu_id) << 24)
220 
221 /*
222  *Delivery mode
223  */
224 #define SAPIC_DELIV_SHIFT      8
225 #define SAPIC_FIXED            0x0
226 #define SAPIC_LOWEST_PRIORITY  0x1
227 #define SAPIC_PMI              0x2
228 #define SAPIC_NMI              0x4
229 #define SAPIC_INIT             0x5
230 #define SAPIC_EXTINT           0x7
231 
232 /*
233  * vcpu->requests bit members for arch
234  */
235 #define KVM_REQ_PTC_G		32
236 #define KVM_REQ_RESUME		33
237 
238 #define KVM_HPAGE_GFN_SHIFT(x)	0
239 #define KVM_NR_PAGE_SIZES	1
240 #define KVM_PAGES_PER_HPAGE(x)	1
241 
242 struct kvm;
243 struct kvm_vcpu;
244 
245 struct kvm_mmio_req {
246 	uint64_t addr;          /*  physical address		*/
247 	uint64_t size;          /*  size in bytes		*/
248 	uint64_t data;          /*  data (or paddr of data)     */
249 	uint8_t state:4;
250 	uint8_t dir:1;          /*  1=read, 0=write             */
251 };
252 
253 /*Pal data struct */
254 struct kvm_pal_call{
255 	/*In area*/
256 	uint64_t gr28;
257 	uint64_t gr29;
258 	uint64_t gr30;
259 	uint64_t gr31;
260 	/*Out area*/
261 	struct ia64_pal_retval ret;
262 };
263 
264 /* Sal data structure */
265 struct kvm_sal_call{
266 	/*In area*/
267 	uint64_t in0;
268 	uint64_t in1;
269 	uint64_t in2;
270 	uint64_t in3;
271 	uint64_t in4;
272 	uint64_t in5;
273 	uint64_t in6;
274 	uint64_t in7;
275 	struct sal_ret_values ret;
276 };
277 
278 /*Guest change rr6*/
279 struct kvm_switch_rr6 {
280 	uint64_t old_rr;
281 	uint64_t new_rr;
282 };
283 
284 union ia64_ipi_a{
285 	unsigned long val;
286 	struct {
287 		unsigned long rv  : 3;
288 		unsigned long ir  : 1;
289 		unsigned long eid : 8;
290 		unsigned long id  : 8;
291 		unsigned long ib_base : 44;
292 	};
293 };
294 
295 union ia64_ipi_d {
296 	unsigned long val;
297 	struct {
298 		unsigned long vector : 8;
299 		unsigned long dm  : 3;
300 		unsigned long ig  : 53;
301 	};
302 };
303 
304 /*ipi check exit data*/
305 struct kvm_ipi_data{
306 	union ia64_ipi_a addr;
307 	union ia64_ipi_d data;
308 };
309 
310 /*global purge data*/
311 struct kvm_ptc_g {
312 	unsigned long vaddr;
313 	unsigned long rr;
314 	unsigned long ps;
315 	struct kvm_vcpu *vcpu;
316 };
317 
318 /*Exit control data */
319 struct exit_ctl_data{
320 	uint32_t exit_reason;
321 	uint32_t vm_status;
322 	union {
323 		struct kvm_mmio_req	ioreq;
324 		struct kvm_pal_call	pal_data;
325 		struct kvm_sal_call	sal_data;
326 		struct kvm_switch_rr6	rr_data;
327 		struct kvm_ipi_data	ipi_data;
328 		struct kvm_ptc_g	ptc_g_data;
329 	} u;
330 };
331 
332 union pte_flags {
333 	unsigned long val;
334 	struct {
335 		unsigned long p    :  1; /*0      */
336 		unsigned long      :  1; /* 1     */
337 		unsigned long ma   :  3; /* 2-4   */
338 		unsigned long a    :  1; /* 5     */
339 		unsigned long d    :  1; /* 6     */
340 		unsigned long pl   :  2; /* 7-8   */
341 		unsigned long ar   :  3; /* 9-11  */
342 		unsigned long ppn  : 38; /* 12-49 */
343 		unsigned long      :  2; /* 50-51 */
344 		unsigned long ed   :  1; /* 52    */
345 	};
346 };
347 
348 union ia64_pta {
349 	unsigned long val;
350 	struct {
351 		unsigned long ve : 1;
352 		unsigned long reserved0 : 1;
353 		unsigned long size : 6;
354 		unsigned long vf : 1;
355 		unsigned long reserved1 : 6;
356 		unsigned long base : 49;
357 	};
358 };
359 
360 struct thash_cb {
361 	/* THASH base information */
362 	struct thash_data	*hash; /* hash table pointer */
363 	union ia64_pta		pta;
364 	int           num;
365 };
366 
367 struct kvm_vcpu_stat {
368 };
369 
370 struct kvm_vcpu_arch {
371 	int launched;
372 	int last_exit;
373 	int last_run_cpu;
374 	int vmm_tr_slot;
375 	int vm_tr_slot;
376 	int sn_rtc_tr_slot;
377 
378 #define KVM_MP_STATE_RUNNABLE          0
379 #define KVM_MP_STATE_UNINITIALIZED     1
380 #define KVM_MP_STATE_INIT_RECEIVED     2
381 #define KVM_MP_STATE_HALTED            3
382 	int mp_state;
383 
384 #define MAX_PTC_G_NUM			3
385 	int ptc_g_count;
386 	struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM];
387 
388 	/*halt timer to wake up sleepy vcpus*/
389 	struct hrtimer hlt_timer;
390 	long ht_active;
391 
392 	struct kvm_lapic *apic;    /* kernel irqchip context */
393 	struct vpd *vpd;
394 
395 	/* Exit data for vmm_transition*/
396 	struct exit_ctl_data exit_data;
397 
398 	cpumask_t cache_coherent_map;
399 
400 	unsigned long vmm_rr;
401 	unsigned long host_rr6;
402 	unsigned long psbits[8];
403 	unsigned long cr_iipa;
404 	unsigned long cr_isr;
405 	unsigned long vsa_base;
406 	unsigned long dirty_log_lock_pa;
407 	unsigned long __gp;
408 	/* TR and TC.  */
409 	struct thash_data itrs[NITRS];
410 	struct thash_data dtrs[NDTRS];
411 	/* Bit is set if there is a tr/tc for the region.  */
412 	unsigned char itr_regions;
413 	unsigned char dtr_regions;
414 	unsigned char tc_regions;
415 	/* purge all */
416 	unsigned long ptce_base;
417 	unsigned long ptce_count[2];
418 	unsigned long ptce_stride[2];
419 	/* itc/itm */
420 	unsigned long last_itc;
421 	long itc_offset;
422 	unsigned long itc_check;
423 	unsigned long timer_check;
424 	unsigned int timer_pending;
425 	unsigned int timer_fired;
426 
427 	unsigned long vrr[8];
428 	unsigned long ibr[8];
429 	unsigned long dbr[8];
430 	unsigned long insvc[4];		/* Interrupt in service.  */
431 	unsigned long xtp;
432 
433 	unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */
434 	unsigned long metaphysical_rr4;	/* from kvm_arch (so is pinned) */
435 	unsigned long metaphysical_saved_rr0; /* from kvm_arch          */
436 	unsigned long metaphysical_saved_rr4; /* from kvm_arch          */
437 	unsigned long fp_psr;       /*used for lazy float register */
438 	unsigned long saved_gp;
439 	/*for phycial  emulation */
440 	int mode_flags;
441 	struct thash_cb vtlb;
442 	struct thash_cb vhpt;
443 	char irq_check;
444 	char irq_new_pending;
445 
446 	unsigned long opcode;
447 	unsigned long cause;
448 	char log_buf[VMM_LOG_LEN];
449 	union context host;
450 	union context guest;
451 };
452 
453 struct kvm_vm_stat {
454 	u64 remote_tlb_flush;
455 };
456 
457 struct kvm_sal_data {
458 	unsigned long boot_ip;
459 	unsigned long boot_gp;
460 };
461 
462 struct kvm_arch {
463 	spinlock_t dirty_log_lock;
464 
465 	unsigned long	vm_base;
466 	unsigned long	metaphysical_rr0;
467 	unsigned long	metaphysical_rr4;
468 	unsigned long	vmm_init_rr;
469 
470 	int		is_sn2;
471 
472 	struct kvm_ioapic *vioapic;
473 	struct kvm_vm_stat stat;
474 	struct kvm_sal_data rdv_sal_data;
475 
476 	struct list_head assigned_dev_head;
477 	struct iommu_domain *iommu_domain;
478 	int iommu_flags;
479 
480 	unsigned long irq_sources_bitmap;
481 	unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
482 };
483 
484 union cpuid3_t {
485 	u64 value;
486 	struct {
487 		u64 number : 8;
488 		u64 revision : 8;
489 		u64 model : 8;
490 		u64 family : 8;
491 		u64 archrev : 8;
492 		u64 rv : 24;
493 	};
494 };
495 
496 struct kvm_pt_regs {
497 	/* The following registers are saved by SAVE_MIN: */
498 	unsigned long b6;  /* scratch */
499 	unsigned long b7;  /* scratch */
500 
501 	unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
502 	unsigned long ar_ssd; /* reserved for future use (scratch) */
503 
504 	unsigned long r8;  /* scratch (return value register 0) */
505 	unsigned long r9;  /* scratch (return value register 1) */
506 	unsigned long r10; /* scratch (return value register 2) */
507 	unsigned long r11; /* scratch (return value register 3) */
508 
509 	unsigned long cr_ipsr; /* interrupted task's psr */
510 	unsigned long cr_iip;  /* interrupted task's instruction pointer */
511 	unsigned long cr_ifs;  /* interrupted task's function state */
512 
513 	unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
514 	unsigned long ar_pfs;  /* prev function state  */
515 	unsigned long ar_rsc;  /* RSE configuration */
516 	/* The following two are valid only if cr_ipsr.cpl > 0: */
517 	unsigned long ar_rnat;  /* RSE NaT */
518 	unsigned long ar_bspstore; /* RSE bspstore */
519 
520 	unsigned long pr;  /* 64 predicate registers (1 bit each) */
521 	unsigned long b0;  /* return pointer (bp) */
522 	unsigned long loadrs;  /* size of dirty partition << 16 */
523 
524 	unsigned long r1;  /* the gp pointer */
525 	unsigned long r12; /* interrupted task's memory stack pointer */
526 	unsigned long r13; /* thread pointer */
527 
528 	unsigned long ar_fpsr;  /* floating point status (preserved) */
529 	unsigned long r15;  /* scratch */
530 
531 	/* The remaining registers are NOT saved for system calls.  */
532 	unsigned long r14;  /* scratch */
533 	unsigned long r2;  /* scratch */
534 	unsigned long r3;  /* scratch */
535 	unsigned long r16;  /* scratch */
536 	unsigned long r17;  /* scratch */
537 	unsigned long r18;  /* scratch */
538 	unsigned long r19;  /* scratch */
539 	unsigned long r20;  /* scratch */
540 	unsigned long r21;  /* scratch */
541 	unsigned long r22;  /* scratch */
542 	unsigned long r23;  /* scratch */
543 	unsigned long r24;  /* scratch */
544 	unsigned long r25;  /* scratch */
545 	unsigned long r26;  /* scratch */
546 	unsigned long r27;  /* scratch */
547 	unsigned long r28;  /* scratch */
548 	unsigned long r29;  /* scratch */
549 	unsigned long r30;  /* scratch */
550 	unsigned long r31;  /* scratch */
551 	unsigned long ar_ccv;  /* compare/exchange value (scratch) */
552 
553 	/*
554 	 * Floating point registers that the kernel considers scratch:
555 	 */
556 	struct ia64_fpreg f6;  /* scratch */
557 	struct ia64_fpreg f7;  /* scratch */
558 	struct ia64_fpreg f8;  /* scratch */
559 	struct ia64_fpreg f9;  /* scratch */
560 	struct ia64_fpreg f10;  /* scratch */
561 	struct ia64_fpreg f11;  /* scratch */
562 
563 	unsigned long r4;  /* preserved */
564 	unsigned long r5;  /* preserved */
565 	unsigned long r6;  /* preserved */
566 	unsigned long r7;  /* preserved */
567 	unsigned long eml_unat;    /* used for emulating instruction */
568 	unsigned long pad0;     /* alignment pad */
569 };
570 
vcpu_regs(struct kvm_vcpu * v)571 static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v)
572 {
573 	return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1;
574 }
575 
576 typedef int kvm_vmm_entry(void);
577 typedef void kvm_tramp_entry(union context *host, union context *guest);
578 
579 struct kvm_vmm_info{
580 	struct module	*module;
581 	kvm_vmm_entry 	*vmm_entry;
582 	kvm_tramp_entry *tramp_entry;
583 	unsigned long 	vmm_ivt;
584 	unsigned long	patch_mov_ar;
585 	unsigned long	patch_mov_ar_sn2;
586 };
587 
588 int kvm_highest_pending_irq(struct kvm_vcpu *vcpu);
589 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
590 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
591 void kvm_sal_emul(struct kvm_vcpu *vcpu);
592 
593 #define __KVM_HAVE_ARCH_VM_ALLOC 1
594 struct kvm *kvm_arch_alloc_vm(void);
595 void kvm_arch_free_vm(struct kvm *kvm);
596 
597 #endif /* __ASSEMBLY__*/
598 
599 #endif
600