[deliverable/linux.git] / arch / powerpc / include / asm / kvm_host.h

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2007
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

#ifndef __POWERPC_KVM_HOST_H__
#define __POWERPC_KVM_HOST_H__

#include <linux/mutex.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/kvm_types.h>
#include <linux/kvm_para.h>
#include <asm/kvm_asm.h>

#define KVM_MAX_VCPUS 1
#define KVM_MEMORY_SLOTS 32
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4

#define KVM_COALESCED_MMIO_PAGE_OFFSET 1

/* We don't currently support large pages. */
#define KVM_HPAGE_GFN_SHIFT(x)	0
#define KVM_NR_PAGE_SIZES	1
#define KVM_PAGES_PER_HPAGE(x)	(1UL<<31)

#define HPTEG_CACHE_NUM			(1 << 15)
#define HPTEG_HASH_BITS_PTE		13
#define HPTEG_HASH_BITS_VPTE		13
#define HPTEG_HASH_BITS_VPTE_LONG	5
#define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
#define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
#define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)

struct kvm;
struct kvm_run;
struct kvm_vcpu;

struct kvm_vm_stat {
	u32 remote_tlb_flush;
};

struct kvm_vcpu_stat {
	u32 sum_exits;
	u32 mmio_exits;
	u32 dcr_exits;
	u32 signal_exits;
	u32 light_exits;
	/* Account for special types of light exits: */
	u32 itlb_real_miss_exits;
	u32 itlb_virt_miss_exits;
	u32 dtlb_real_miss_exits;
	u32 dtlb_virt_miss_exits;
	u32 syscall_exits;
	u32 isi_exits;
	u32 dsi_exits;
	u32 emulated_inst_exits;
	u32 dec_exits;
	u32 ext_intr_exits;
	u32 halt_wakeup;
#ifdef CONFIG_PPC_BOOK3S
	u32 pf_storage;
	u32 pf_instruc;
	u32 sp_storage;
	u32 sp_instruc;
	u32 queue_intr;
	u32 ld;
	u32 ld_slow;
	u32 st;
	u32 st_slow;
#endif
};

enum kvm_exit_types {
	MMIO_EXITS,
	DCR_EXITS,
	SIGNAL_EXITS,
	ITLB_REAL_MISS_EXITS,
	ITLB_VIRT_MISS_EXITS,
	DTLB_REAL_MISS_EXITS,
	DTLB_VIRT_MISS_EXITS,
	SYSCALL_EXITS,
	ISI_EXITS,
	DSI_EXITS,
	EMULATED_INST_EXITS,
	EMULATED_MTMSRWE_EXITS,
	EMULATED_WRTEE_EXITS,
	EMULATED_MTSPR_EXITS,
	EMULATED_MFSPR_EXITS,
	EMULATED_MTMSR_EXITS,
	EMULATED_MFMSR_EXITS,
	EMULATED_TLBSX_EXITS,
	EMULATED_TLBWE_EXITS,
	EMULATED_RFI_EXITS,
	DEC_EXITS,
	EXT_INTR_EXITS,
	HALT_WAKEUP,
	USR_PR_INST,
	FP_UNAVAIL,
	DEBUG_EXITS,
	TIMEINGUEST,
	__NUMBER_OF_KVM_EXIT_TYPES
};

/* allow access to big endian 32bit upper/lower parts and 64bit var */
struct kvmppc_exit_timing {
	union {
		u64 tv64;
		struct {
			u32 tbu, tbl;
		} tv32;
	};
};

struct kvm_arch {
};

struct kvmppc_pte {
	ulong eaddr;
	u64 vpage;
	ulong raddr;
	bool may_read		: 1;
	bool may_write		: 1;
	bool may_execute	: 1;
};

struct kvmppc_mmu {
	/* book3s_64 only */
	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
	void (*slbia)(struct kvm_vcpu *vcpu);
	/* book3s */
	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
	void (*reset_msr)(struct kvm_vcpu *vcpu);
	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
};

struct hpte_cache {
	struct hlist_node list_pte;
	struct hlist_node list_vpte;
	struct hlist_node list_vpte_long;
	u64 host_va;
	u64 pfn;
	ulong slot;
	struct kvmppc_pte pte;
};

struct kvm_vcpu_arch {
	ulong host_stack;
	u32 host_pid;
#ifdef CONFIG_PPC_BOOK3S
	ulong host_msr;
	ulong host_r2;
	void *host_retip;
	ulong trampoline_lowmem;
	ulong trampoline_enter;
	ulong highmem_handler;
	ulong rmcall;
	ulong host_paca_phys;
	struct kvmppc_mmu mmu;
#endif

	ulong gpr[32];

	u64 fpr[32];
	u64 fpscr;

#ifdef CONFIG_ALTIVEC
	vector128 vr[32];
	vector128 vscr;
#endif

#ifdef CONFIG_VSX
	u64 vsr[32];
#endif

#ifdef CONFIG_PPC_BOOK3S
	/* For Gekko paired singles */
	u32 qpr[32];
#endif

#ifdef CONFIG_BOOKE
	ulong pc;
	ulong ctr;
	ulong lr;

	ulong xer;
	u32 cr;
#endif

#ifdef CONFIG_PPC_BOOK3S
	ulong shadow_msr;
	ulong hflags;
	ulong guest_owned_ext;
#endif
	u32 mmucr;
	ulong sprg4;
	ulong sprg5;
	ulong sprg6;
	ulong sprg7;
	ulong csrr0;
	ulong csrr1;
	ulong dsrr0;
	ulong dsrr1;
	ulong esr;
	u32 dec;
	u32 decar;
	u32 tbl;
	u32 tbu;
	u32 tcr;
	u32 tsr;
	u32 ivor[64];
	ulong ivpr;
	u32 pir;
	u32 pvr;

	u32 shadow_pid;
	u32 pid;
	u32 swap_pid;

	u32 ccr0;
	u32 ccr1;
	u32 dbcr0;
	u32 dbcr1;
	u32 dbsr;

#ifdef CONFIG_KVM_EXIT_TIMING
	struct kvmppc_exit_timing timing_exit;
	struct kvmppc_exit_timing timing_last_enter;
	u32 last_exit_type;
	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_last_exit;
	struct dentry *debugfs_exit_timing;
#endif

#ifdef CONFIG_BOOKE
	u32 last_inst;
	ulong fault_dear;
	ulong fault_esr;
	ulong queued_dear;
	ulong queued_esr;
#endif
	gpa_t paddr_accessed;

	u8 io_gpr; /* GPR used as IO source/target */
	u8 mmio_is_bigendian;
	u8 mmio_sign_extend;
	u8 dcr_needed;
	u8 dcr_is_write;
	u8 osi_needed;
	u8 osi_enabled;

	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */

	struct hrtimer dec_timer;
	struct tasklet_struct tasklet;
	u64 dec_jiffies;
	unsigned long pending_exceptions;
	struct kvm_vcpu_arch_shared *shared;

#ifdef CONFIG_PPC_BOOK3S
	struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
	struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
	struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
	int hpte_cache_count;
#endif
};

#endif /* __POWERPC_KVM_HOST_H__ */
Commit	Line	Data
bbf45ba5 HB	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License, version 2, as
	4	* published by the Free Software Foundation.
	5	*
	6	* This program is distributed in the hope that it will be useful,
	7	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	8	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	9	* GNU General Public License for more details.
	10	*
	11	* You should have received a copy of the GNU General Public License
	12	* along with this program; if not, write to the Free Software
	13	* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	14	*
	15	* Copyright IBM Corp. 2007
	16	*
	17	* Authors: Hollis Blanchard <hollisb@us.ibm.com>
	18	*/
	19
	20	#ifndef __POWERPC_KVM_HOST_H__
	21	#define __POWERPC_KVM_HOST_H__
	22
	23	#include <linux/mutex.h>
544c6761 AG	24	#include <linux/hrtimer.h>
544c6761 AG	25	#include <linux/interrupt.h>
bbf45ba5 HB	26	#include <linux/types.h>
bbf45ba5 HB	27	#include <linux/kvm_types.h>
96bc451a	28	#include <linux/kvm_para.h>
bbf45ba5 HB	29	#include <asm/kvm_asm.h>
	30
	31	#define KVM_MAX_VCPUS 1
	32	#define KVM_MEMORY_SLOTS 32
	33	/* memory slots that does not exposed to userspace */
	34	#define KVM_PRIVATE_MEM_SLOTS 4
	35
588968b6 LV	36	#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
588968b6 LV	37
bbf45ba5	38	/* We don't currently support large pages. */
82855413	39	#define KVM_HPAGE_GFN_SHIFT(x) 0
ec04b260 JR	40	#define KVM_NR_PAGE_SIZES 1
ec04b260 JR	41	#define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
bbf45ba5	42
fef093be AG	43	#define HPTEG_CACHE_NUM (1 << 15)
	44	#define HPTEG_HASH_BITS_PTE 13
	45	#define HPTEG_HASH_BITS_VPTE 13
	46	#define HPTEG_HASH_BITS_VPTE_LONG 5
	47	#define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
	48	#define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
	49	#define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
ca95150b	50
bbf45ba5 HB	51	struct kvm;
	52	struct kvm_run;
	53	struct kvm_vcpu;
	54
	55	struct kvm_vm_stat {
	56	u32 remote_tlb_flush;
	57	};
	58
	59	struct kvm_vcpu_stat {
	60	u32 sum_exits;
	61	u32 mmio_exits;
	62	u32 dcr_exits;
	63	u32 signal_exits;
	64	u32 light_exits;
	65	/* Account for special types of light exits: */
	66	u32 itlb_real_miss_exits;
	67	u32 itlb_virt_miss_exits;
	68	u32 dtlb_real_miss_exits;
	69	u32 dtlb_virt_miss_exits;
	70	u32 syscall_exits;
	71	u32 isi_exits;
	72	u32 dsi_exits;
	73	u32 emulated_inst_exits;
	74	u32 dec_exits;
	75	u32 ext_intr_exits;
45c5eb67	76	u32 halt_wakeup;
00c3a37c	77	#ifdef CONFIG_PPC_BOOK3S
ca95150b AG	78	u32 pf_storage;
	79	u32 pf_instruc;
	80	u32 sp_storage;
	81	u32 sp_instruc;
	82	u32 queue_intr;
	83	u32 ld;
	84	u32 ld_slow;
	85	u32 st;
	86	u32 st_slow;
	87	#endif
bbf45ba5 HB	88	};
bbf45ba5 HB	89
73e75b41 HB	90	enum kvm_exit_types {
	91	MMIO_EXITS,
	92	DCR_EXITS,
	93	SIGNAL_EXITS,
	94	ITLB_REAL_MISS_EXITS,
	95	ITLB_VIRT_MISS_EXITS,
	96	DTLB_REAL_MISS_EXITS,
	97	DTLB_VIRT_MISS_EXITS,
	98	SYSCALL_EXITS,
	99	ISI_EXITS,
	100	DSI_EXITS,
	101	EMULATED_INST_EXITS,
	102	EMULATED_MTMSRWE_EXITS,
	103	EMULATED_WRTEE_EXITS,
	104	EMULATED_MTSPR_EXITS,
	105	EMULATED_MFSPR_EXITS,
	106	EMULATED_MTMSR_EXITS,
	107	EMULATED_MFMSR_EXITS,
	108	EMULATED_TLBSX_EXITS,
	109	EMULATED_TLBWE_EXITS,
	110	EMULATED_RFI_EXITS,
	111	DEC_EXITS,
	112	EXT_INTR_EXITS,
	113	HALT_WAKEUP,
	114	USR_PR_INST,
	115	FP_UNAVAIL,
	116	DEBUG_EXITS,
	117	TIMEINGUEST,
	118	__NUMBER_OF_KVM_EXIT_TYPES
	119	};
	120
73e75b41	121	/* allow access to big endian 32bit upper/lower parts and 64bit var */
7b701591	122	struct kvmppc_exit_timing {
73e75b41 HB	123	union {
	124	u64 tv64;
	125	struct {
	126	u32 tbu, tbl;
	127	} tv32;
	128	};
	129	};
73e75b41	130
bbf45ba5 HB	131	struct kvm_arch {
	132	};
	133
ca95150b	134	struct kvmppc_pte {
af7b4d10	135	ulong eaddr;
ca95150b	136	u64 vpage;
af7b4d10	137	ulong raddr;
3ed9c6d2 AG	138	bool may_read : 1;
	139	bool may_write : 1;
	140	bool may_execute : 1;
ca95150b AG	141	};
	142
	143	struct kvmppc_mmu {
	144	/* book3s_64 only */
	145	void (slbmte)(struct kvm_vcpu vcpu, u64 rb, u64 rs);
	146	u64 (slbmfee)(struct kvm_vcpu vcpu, u64 slb_nr);
	147	u64 (slbmfev)(struct kvm_vcpu vcpu, u64 slb_nr);
	148	void (slbie)(struct kvm_vcpu vcpu, u64 slb_nr);
	149	void (slbia)(struct kvm_vcpu vcpu);
	150	/* book3s */
	151	void (mtsrin)(struct kvm_vcpu vcpu, u32 srnum, ulong value);
	152	u32 (mfsrin)(struct kvm_vcpu vcpu, u32 srnum);
	153	int (xlate)(struct kvm_vcpu vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
	154	void (reset_msr)(struct kvm_vcpu vcpu);
	155	void (tlbie)(struct kvm_vcpu vcpu, ulong addr, bool large);
af7b4d10	156	int (esid_to_vsid)(struct kvm_vcpu vcpu, ulong esid, u64 *vsid);
ca95150b AG	157	u64 (ea_to_vp)(struct kvm_vcpu vcpu, gva_t eaddr, bool data);
	158	bool (is_dcbz32)(struct kvm_vcpu vcpu);
	159	};
	160
	161	struct hpte_cache {
fef093be AG	162	struct hlist_node list_pte;
	163	struct hlist_node list_vpte;
	164	struct hlist_node list_vpte_long;
ca95150b AG	165	u64 host_va;
	166	u64 pfn;
	167	ulong slot;
	168	struct kvmppc_pte pte;
	169	};
	170
bbf45ba5	171	struct kvm_vcpu_arch {
ca95150b	172	ulong host_stack;
bbf45ba5	173	u32 host_pid;
00c3a37c	174	#ifdef CONFIG_PPC_BOOK3S
ca95150b AG	175	ulong host_msr;
	176	ulong host_r2;
	177	void *host_retip;
	178	ulong trampoline_lowmem;
	179	ulong trampoline_enter;
	180	ulong highmem_handler;
021ec9c6	181	ulong rmcall;
ca95150b AG	182	ulong host_paca_phys;
	183	struct kvmppc_mmu mmu;
	184	#endif
bbf45ba5	185
5cf8ca22	186	ulong gpr[32];
bbf45ba5	187
180a34d2	188	u64 fpr[32];
c62e096d	189	u64 fpscr;
180a34d2 AG	190
	191	#ifdef CONFIG_ALTIVEC
	192	vector128 vr[32];
	193	vector128 vscr;
	194	#endif
	195
	196	#ifdef CONFIG_VSX
	197	u64 vsr[32];
	198	#endif
	199
5aa9e2f4 AG	200	#ifdef CONFIG_PPC_BOOK3S
	201	/* For Gekko paired singles */
	202	u32 qpr[32];
	203	#endif
	204
0604675f	205	#ifdef CONFIG_BOOKE
5cf8ca22	206	ulong pc;
5cf8ca22 HB	207	ulong ctr;
5cf8ca22 HB	208	ulong lr;
7e57cba0	209
5cf8ca22	210	ulong xer;
7e57cba0 AG	211	u32 cr;
7e57cba0 AG	212	#endif
bbf45ba5	213
00c3a37c	214	#ifdef CONFIG_PPC_BOOK3S
ca95150b AG	215	ulong shadow_msr;
ca95150b AG	216	ulong hflags;
180a34d2	217	ulong guest_owned_ext;
ca95150b	218	#endif
bbf45ba5	219	u32 mmucr;
5cf8ca22 HB	220	ulong sprg4;
	221	ulong sprg5;
	222	ulong sprg6;
	223	ulong sprg7;
5cf8ca22 HB	224	ulong csrr0;
	225	ulong csrr1;
	226	ulong dsrr0;
	227	ulong dsrr1;
5cf8ca22	228	ulong esr;
bbf45ba5 HB	229	u32 dec;
	230	u32 decar;
	231	u32 tbl;
	232	u32 tbu;
	233	u32 tcr;
	234	u32 tsr;
bb3a8a17	235	u32 ivor[64];
5cf8ca22	236	ulong ivpr;
bbf45ba5	237	u32 pir;
ca95150b	238	u32 pvr;
49dd2c49 HB	239
49dd2c49 HB	240	u32 shadow_pid;
bbf45ba5	241	u32 pid;
49dd2c49 HB	242	u32 swap_pid;
49dd2c49 HB	243
bbf45ba5 HB	244	u32 ccr0;
	245	u32 ccr1;
	246	u32 dbcr0;
	247	u32 dbcr1;
f7b200af	248	u32 dbsr;
bbf45ba5	249
73e75b41	250	#ifdef CONFIG_KVM_EXIT_TIMING
7b701591 HB	251	struct kvmppc_exit_timing timing_exit;
7b701591 HB	252	struct kvmppc_exit_timing timing_last_enter;
73e75b41 HB	253	u32 last_exit_type;
	254	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
	255	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	256	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	257	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	258	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	259	u64 timing_last_exit;
	260	struct dentry *debugfs_exit_timing;
	261	#endif
	262
0604675f	263	#ifdef CONFIG_BOOKE
bbf45ba5	264	u32 last_inst;
5cf8ca22 HB	265	ulong fault_dear;
5cf8ca22 HB	266	ulong fault_esr;
daf5e271 LY	267	ulong queued_dear;
daf5e271 LY	268	ulong queued_esr;
0604675f	269	#endif
bbf45ba5 HB	270	gpa_t paddr_accessed;
	271
	272	u8 io_gpr; /* GPR used as IO source/target */
	273	u8 mmio_is_bigendian;
3587d534	274	u8 mmio_sign_extend;
bbf45ba5 HB	275	u8 dcr_needed;
bbf45ba5 HB	276	u8 dcr_is_write;
ad0a048b AG	277	u8 osi_needed;
ad0a048b AG	278	u8 osi_enabled;
bbf45ba5 HB	279
	280	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
	281
544c6761 AG	282	struct hrtimer dec_timer;
544c6761 AG	283	struct tasklet_struct tasklet;
ca95150b	284	u64 dec_jiffies;
bbf45ba5	285	unsigned long pending_exceptions;
96bc451a	286	struct kvm_vcpu_arch_shared *shared;
ca95150b	287
00c3a37c	288	#ifdef CONFIG_PPC_BOOK3S
fef093be AG	289	struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
	290	struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
	291	struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
	292	int hpte_cache_count;
ca95150b	293	#endif
bbf45ba5 HB	294	};
bbf45ba5 HB	295
bbf45ba5	296	#endif /* __POWERPC_KVM_HOST_H__ */