[mirror_ubuntu-artful-kernel.git] / arch / arm / include / asm / kvm_host.h

/*
 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
 *
 * 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.
 */

#ifndef __ARM_KVM_HOST_H__
#define __ARM_KVM_HOST_H__

#include <linux/types.h>
#include <linux/kvm_types.h>
#include <asm/kvm.h>
#include <asm/kvm_asm.h>
#include <asm/kvm_mmio.h>
#include <asm/fpstate.h>
#include <kvm/arm_arch_timer.h>

#define __KVM_HAVE_ARCH_INTC_INITIALIZED

#define KVM_USER_MEM_SLOTS 32
#define KVM_HAVE_ONE_REG
#define KVM_HALT_POLL_NS_DEFAULT 500000

#define KVM_VCPU_MAX_FEATURES 2

#include <kvm/arm_vgic.h>


#ifdef CONFIG_ARM_GIC_V3
#define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS
#else
#define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS
#endif

#define KVM_REQ_SLEEP \
	KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_IRQ_PENDING	KVM_ARCH_REQ(1)

u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
void kvm_reset_coprocs(struct kvm_vcpu *vcpu);

struct kvm_arch {
	/* VTTBR value associated with below pgd and vmid */
	u64    vttbr;

	/* The last vcpu id that ran on each physical CPU */
	int __percpu *last_vcpu_ran;

	/*
	 * Anything that is not used directly from assembly code goes
	 * here.
	 */

	/* The VMID generation used for the virt. memory system */
	u64    vmid_gen;
	u32    vmid;

	/* Stage-2 page table */
	pgd_t *pgd;

	/* Interrupt controller */
	struct vgic_dist	vgic;
	int max_vcpus;
};

#define KVM_NR_MEM_OBJS     40

/*
 * We don't want allocation failures within the mmu code, so we preallocate
 * enough memory for a single page fault in a cache.
 */
struct kvm_mmu_memory_cache {
	int nobjs;
	void *objects[KVM_NR_MEM_OBJS];
};

struct kvm_vcpu_fault_info {
	u32 hsr;		/* Hyp Syndrome Register */
	u32 hxfar;		/* Hyp Data/Inst. Fault Address Register */
	u32 hpfar;		/* Hyp IPA Fault Address Register */
};

/*
 * 0 is reserved as an invalid value.
 * Order should be kept in sync with the save/restore code.
 */
enum vcpu_sysreg {
	__INVALID_SYSREG__,
	c0_MPIDR,		/* MultiProcessor ID Register */
	c0_CSSELR,		/* Cache Size Selection Register */
	c1_SCTLR,		/* System Control Register */
	c1_ACTLR,		/* Auxiliary Control Register */
	c1_CPACR,		/* Coprocessor Access Control */
	c2_TTBR0,		/* Translation Table Base Register 0 */
	c2_TTBR0_high,		/* TTBR0 top 32 bits */
	c2_TTBR1,		/* Translation Table Base Register 1 */
	c2_TTBR1_high,		/* TTBR1 top 32 bits */
	c2_TTBCR,		/* Translation Table Base Control R. */
	c3_DACR,		/* Domain Access Control Register */
	c5_DFSR,		/* Data Fault Status Register */
	c5_IFSR,		/* Instruction Fault Status Register */
	c5_ADFSR,		/* Auxilary Data Fault Status R */
	c5_AIFSR,		/* Auxilary Instrunction Fault Status R */
	c6_DFAR,		/* Data Fault Address Register */
	c6_IFAR,		/* Instruction Fault Address Register */
	c7_PAR,			/* Physical Address Register */
	c7_PAR_high,		/* PAR top 32 bits */
	c9_L2CTLR,		/* Cortex A15/A7 L2 Control Register */
	c10_PRRR,		/* Primary Region Remap Register */
	c10_NMRR,		/* Normal Memory Remap Register */
	c12_VBAR,		/* Vector Base Address Register */
	c13_CID,		/* Context ID Register */
	c13_TID_URW,		/* Thread ID, User R/W */
	c13_TID_URO,		/* Thread ID, User R/O */
	c13_TID_PRIV,		/* Thread ID, Privileged */
	c14_CNTKCTL,		/* Timer Control Register (PL1) */
	c10_AMAIR0,		/* Auxilary Memory Attribute Indirection Reg0 */
	c10_AMAIR1,		/* Auxilary Memory Attribute Indirection Reg1 */
	NR_CP15_REGS		/* Number of regs (incl. invalid) */
};

struct kvm_cpu_context {
	struct kvm_regs	gp_regs;
	struct vfp_hard_struct vfp;
	u32 cp15[NR_CP15_REGS];
};

typedef struct kvm_cpu_context kvm_cpu_context_t;

struct kvm_vcpu_arch {
	struct kvm_cpu_context ctxt;

	int target; /* Processor target */
	DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);

	/* The CPU type we expose to the VM */
	u32 midr;

	/* HYP trapping configuration */
	u32 hcr;

	/* Interrupt related fields */
	u32 irq_lines;		/* IRQ and FIQ levels */

	/* Exception Information */
	struct kvm_vcpu_fault_info fault;

	/* Host FP context */
	kvm_cpu_context_t *host_cpu_context;

	/* VGIC state */
	struct vgic_cpu vgic_cpu;
	struct arch_timer_cpu timer_cpu;

	/*
	 * Anything that is not used directly from assembly code goes
	 * here.
	 */

	/* vcpu power-off state */
	bool power_off;

	 /* Don't run the guest (internal implementation need) */
	bool pause;

	/* IO related fields */
	struct kvm_decode mmio_decode;

	/* Cache some mmu pages needed inside spinlock regions */
	struct kvm_mmu_memory_cache mmu_page_cache;

	/* Detect first run of a vcpu */
	bool has_run_once;
};

struct kvm_vm_stat {
	ulong remote_tlb_flush;
};

struct kvm_vcpu_stat {
	u64 halt_successful_poll;
	u64 halt_attempted_poll;
	u64 halt_poll_invalid;
	u64 halt_wakeup;
	u64 hvc_exit_stat;
	u64 wfe_exit_stat;
	u64 wfi_exit_stat;
	u64 mmio_exit_user;
	u64 mmio_exit_kernel;
	u64 exits;
};

#define vcpu_cp15(v,r)	(v)->arch.ctxt.cp15[r]

int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
unsigned long kvm_call_hyp(void *hypfn, ...);
void force_vm_exit(const cpumask_t *mask);

#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
int kvm_unmap_hva_range(struct kvm *kvm,
			unsigned long start, unsigned long end);
void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

struct kvm_vcpu *kvm_arm_get_running_vcpu(void);
struct kvm_vcpu __percpu **kvm_get_running_vcpus(void);
void kvm_arm_halt_guest(struct kvm *kvm);
void kvm_arm_resume_guest(struct kvm *kvm);

int kvm_arm_copy_coproc_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu);
int kvm_arm_coproc_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);
int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);

int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
		int exception_index);

static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr,
				       unsigned long hyp_stack_ptr,
				       unsigned long vector_ptr)
{
	/*
	 * Call initialization code, and switch to the full blown HYP
	 * code. The init code doesn't need to preserve these
	 * registers as r0-r3 are already callee saved according to
	 * the AAPCS.
	 * Note that we slightly misuse the prototype by casting the
	 * stack pointer to a void *.

	 * The PGDs are always passed as the third argument, in order
	 * to be passed into r2-r3 to the init code (yes, this is
	 * compliant with the PCS!).
	 */

	kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr);
}

static inline void __cpu_init_stage2(void)
{
	kvm_call_hyp(__init_stage2_translation);
}

static inline int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
{
	return 0;
}

int kvm_perf_init(void);
int kvm_perf_teardown(void);

void kvm_mmu_wp_memory_region(struct kvm *kvm, int slot);

struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr);

static inline void kvm_arch_hardware_unsetup(void) {}
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}

static inline void kvm_arm_init_debug(void) {}
static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}

int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr);
int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr);
int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr);

#endif /* __ARM_KVM_HOST_H__ */
Commit	Line	Data
749cf76c CD	1	/*
	2	* Copyright (C) 2012 - Virtual Open Systems and Columbia University
	3	* Author: Christoffer Dall <c.dall@virtualopensystems.com>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License, version 2, as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	17	*/
	18
	19	#ifndef __ARM_KVM_HOST_H__
	20	#define __ARM_KVM_HOST_H__
	21
65647300 PB	22	#include <linux/types.h>
65647300 PB	23	#include <linux/kvm_types.h>
749cf76c CD	24	#include <asm/kvm.h>
749cf76c CD	25	#include <asm/kvm_asm.h>
45e96ea6	26	#include <asm/kvm_mmio.h>
f7ed45be	27	#include <asm/fpstate.h>
7275acdf	28	#include <kvm/arm_arch_timer.h>
749cf76c	29
c1426e4c EA	30	#define __KVM_HAVE_ARCH_INTC_INITIALIZED
c1426e4c EA	31
2b5e1e47	32	#define KVM_USER_MEM_SLOTS 32
1138245c	33	#define KVM_HAVE_ONE_REG
920552b2	34	#define KVM_HALT_POLL_NS_DEFAULT 500000
749cf76c	35
7d0f84aa	36	#define KVM_VCPU_MAX_FEATURES 2
749cf76c	37
7275acdf	38	#include <kvm/arm_vgic.h>
1a89dd91	39
acda5430 VM	40
	41	#ifdef CONFIG_ARM_GIC_V3
	42	#define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS
	43	#else
ef748917	44	#define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS
acda5430	45	#endif
ef748917	46
7b244e2b	47	#define KVM_REQ_SLEEP \
2387149e	48	KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT \| KVM_REQUEST_NO_WAKEUP)
325f9c64	49	#define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
b13216cf	50
749cf76c	51	u32 kvm_vcpu_reg(struct kvm_vcpu vcpu, u8 reg_num, u32 mode);
6951e48b	52	int __attribute_const__ kvm_target_cpu(void);
749cf76c CD	53	int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
	54	void kvm_reset_coprocs(struct kvm_vcpu *vcpu);
	55
	56	struct kvm_arch {
	57	/* VTTBR value associated with below pgd and vmid */
	58	u64 vttbr;
	59
94d0e598 MZ	60	/* The last vcpu id that ran on each physical CPU */
	61	int __percpu *last_vcpu_ran;
	62
749cf76c CD	63	/*
	64	* Anything that is not used directly from assembly code goes
	65	* here.
	66	*/
	67
	68	/* The VMID generation used for the virt. memory system */
	69	u64 vmid_gen;
	70	u32 vmid;
	71
	72	/* Stage-2 page table */
	73	pgd_t *pgd;
1a89dd91 MZ	74
	75	/* Interrupt controller */
	76	struct vgic_dist vgic;
3caa2d8c	77	int max_vcpus;
749cf76c CD	78	};
	79
	80	#define KVM_NR_MEM_OBJS 40
	81
	82	/*
	83	* We don't want allocation failures within the mmu code, so we preallocate
	84	* enough memory for a single page fault in a cache.
	85	*/
	86	struct kvm_mmu_memory_cache {
	87	int nobjs;
	88	void *objects[KVM_NR_MEM_OBJS];
	89	};
	90
7393b599 MZ	91	struct kvm_vcpu_fault_info {
	92	u32 hsr; /* Hyp Syndrome Register */
	93	u32 hxfar; /* Hyp Data/Inst. Fault Address Register */
	94	u32 hpfar; /* Hyp IPA Fault Address Register */
7393b599 MZ	95	};
7393b599 MZ	96
4448932f MZ	97	/*
	98	* 0 is reserved as an invalid value.
	99	* Order should be kept in sync with the save/restore code.
	100	*/
	101	enum vcpu_sysreg {
	102	__INVALID_SYSREG__,
	103	c0_MPIDR, /* MultiProcessor ID Register */
	104	c0_CSSELR, /* Cache Size Selection Register */
	105	c1_SCTLR, /* System Control Register */
	106	c1_ACTLR, /* Auxiliary Control Register */
	107	c1_CPACR, /* Coprocessor Access Control */
	108	c2_TTBR0, /* Translation Table Base Register 0 */
	109	c2_TTBR0_high, /* TTBR0 top 32 bits */
	110	c2_TTBR1, /* Translation Table Base Register 1 */
	111	c2_TTBR1_high, /* TTBR1 top 32 bits */
	112	c2_TTBCR, /* Translation Table Base Control R. */
	113	c3_DACR, /* Domain Access Control Register */
	114	c5_DFSR, /* Data Fault Status Register */
	115	c5_IFSR, /* Instruction Fault Status Register */
	116	c5_ADFSR, /* Auxilary Data Fault Status R */
	117	c5_AIFSR, /* Auxilary Instrunction Fault Status R */
	118	c6_DFAR, /* Data Fault Address Register */
	119	c6_IFAR, /* Instruction Fault Address Register */
	120	c7_PAR, /* Physical Address Register */
	121	c7_PAR_high, /* PAR top 32 bits */
	122	c9_L2CTLR, /* Cortex A15/A7 L2 Control Register */
	123	c10_PRRR, /* Primary Region Remap Register */
	124	c10_NMRR, /* Normal Memory Remap Register */
	125	c12_VBAR, /* Vector Base Address Register */
	126	c13_CID, /* Context ID Register */
	127	c13_TID_URW, /* Thread ID, User R/W */
	128	c13_TID_URO, /* Thread ID, User R/O */
	129	c13_TID_PRIV, /* Thread ID, Privileged */
	130	c14_CNTKCTL, /* Timer Control Register (PL1) */
	131	c10_AMAIR0, /* Auxilary Memory Attribute Indirection Reg0 */
	132	c10_AMAIR1, /* Auxilary Memory Attribute Indirection Reg1 */
	133	NR_CP15_REGS /* Number of regs (incl. invalid) */
	134	};
	135
0ca5565d	136	struct kvm_cpu_context {
c2a8dab5	137	struct kvm_regs gp_regs;
0ca5565d	138	struct vfp_hard_struct vfp;
fb32a52a	139	u32 cp15[NR_CP15_REGS];
0ca5565d MZ	140	};
	141
	142	typedef struct kvm_cpu_context kvm_cpu_context_t;
9c7a6432	143
749cf76c	144	struct kvm_vcpu_arch {
0ca5565d MZ	145	struct kvm_cpu_context ctxt;
0ca5565d MZ	146
749cf76c CD	147	int target; /* Processor target */
	148	DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
	149
749cf76c CD	150	/* The CPU type we expose to the VM */
	151	u32 midr;
	152
ac30a11e MZ	153	/* HYP trapping configuration */
	154	u32 hcr;
	155
	156	/* Interrupt related fields */
	157	u32 irq_lines; /* IRQ and FIQ levels */
	158
749cf76c	159	/* Exception Information */
7393b599	160	struct kvm_vcpu_fault_info fault;
749cf76c	161
3de50da6 MZ	162	/* Host FP context */
3de50da6 MZ	163	kvm_cpu_context_t *host_cpu_context;
f7ed45be	164
1a89dd91 MZ	165	/* VGIC state */
1a89dd91 MZ	166	struct vgic_cpu vgic_cpu;
53e72406	167	struct arch_timer_cpu timer_cpu;
1a89dd91	168
f7ed45be CD	169	/*
	170	* Anything that is not used directly from assembly code goes
	171	* here.
	172	*/
5b3e5e5b	173
3781528e EA	174	/* vcpu power-off state */
3781528e EA	175	bool power_off;
aa024c2f	176
3b92830a EA	177	/* Don't run the guest (internal implementation need) */
	178	bool pause;
	179
45e96ea6 CD	180	/* IO related fields */
	181	struct kvm_decode mmio_decode;
	182
749cf76c CD	183	/* Cache some mmu pages needed inside spinlock regions */
749cf76c CD	184	struct kvm_mmu_memory_cache mmu_page_cache;
f7ed45be CD	185
	186	/* Detect first run of a vcpu */
	187	bool has_run_once;
749cf76c CD	188	};
	189
	190	struct kvm_vm_stat {
8a7e75d4	191	ulong remote_tlb_flush;
749cf76c CD	192	};
	193
	194	struct kvm_vcpu_stat {
8a7e75d4 SJS	195	u64 halt_successful_poll;
	196	u64 halt_attempted_poll;
	197	u64 halt_poll_invalid;
	198	u64 halt_wakeup;
	199	u64 hvc_exit_stat;
b19e6892 AT	200	u64 wfe_exit_stat;
	201	u64 wfi_exit_stat;
	202	u64 mmio_exit_user;
	203	u64 mmio_exit_kernel;
	204	u64 exits;
749cf76c CD	205	};
749cf76c CD	206
fb32a52a MZ	207	#define vcpu_cp15(v,r) (v)->arch.ctxt.cp15[r]
fb32a52a MZ	208
4a6fee80	209	int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
749cf76c CD	210	unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
749cf76c CD	211	int kvm_arm_copy_reg_indices(struct kvm_vcpu vcpu, u64 __user indices);
749cf76c CD	212	int kvm_arm_get_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg);
749cf76c CD	213	int kvm_arm_set_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg);
b57cd6f6	214	unsigned long kvm_call_hyp(void *hypfn, ...);
f7ed45be	215	void force_vm_exit(const cpumask_t *mask);
d5d8184d CD	216
d5d8184d CD	217	#define KVM_ARCH_WANT_MMU_NOTIFIER
d5d8184d CD	218	int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
	219	int kvm_unmap_hva_range(struct kvm *kvm,
	220	unsigned long start, unsigned long end);
	221	void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
	222
1138245c CD	223	unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
1138245c CD	224	int kvm_arm_copy_reg_indices(struct kvm_vcpu vcpu, u64 __user indices);
35307b9a MZ	225	int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
35307b9a MZ	226	int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1138245c	227
1638a12d MZ	228	struct kvm_vcpu *kvm_arm_get_running_vcpu(void);
1638a12d MZ	229	struct kvm_vcpu __percpu **kvm_get_running_vcpus(void);
b13216cf CD	230	void kvm_arm_halt_guest(struct kvm *kvm);
b13216cf CD	231	void kvm_arm_resume_guest(struct kvm *kvm);
1638a12d MZ	232
	233	int kvm_arm_copy_coproc_indices(struct kvm_vcpu vcpu, u64 __user uindices);
	234	unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu);
1638a12d MZ	235	int kvm_arm_coproc_get_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg );
	236	int kvm_arm_coproc_set_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg );
	237
3414bbff MZ	238	int handle_exit(struct kvm_vcpu vcpu, struct kvm_run run,
	239	int exception_index);
	240
12fda812	241	static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr,
e7858c58 MZ	242	unsigned long hyp_stack_ptr,
	243	unsigned long vector_ptr)
	244	{
e7858c58	245	/*
5a677ce0 MZ	246	* Call initialization code, and switch to the full blown HYP
	247	* code. The init code doesn't need to preserve these
	248	* registers as r0-r3 are already callee saved according to
	249	* the AAPCS.
cd602a37	250	* Note that we slightly misuse the prototype by casting the
5a677ce0	251	* stack pointer to a void *.
5a677ce0	252
cd602a37 MZ	253	* The PGDs are always passed as the third argument, in order
	254	* to be passed into r2-r3 to the init code (yes, this is
	255	* compliant with the PCS!).
	256	*/
5a677ce0 MZ	257
5a677ce0 MZ	258	kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr);
e7858c58 MZ	259	}
e7858c58 MZ	260
35a2491a MZ	261	static inline void __cpu_init_stage2(void)
35a2491a MZ	262	{
d4c7688c	263	kvm_call_hyp(__init_stage2_translation);
35a2491a MZ	264	}
35a2491a MZ	265
b46f01ce	266	static inline int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
17b1e31f MZ	267	{
	268	return 0;
	269	}
	270
210552c1 MZ	271	int kvm_perf_init(void);
	272	int kvm_perf_teardown(void);
	273
c6473555 MS	274	void kvm_mmu_wp_memory_region(struct kvm *kvm, int slot);
c6473555 MS	275
4429fc64 AP	276	struct kvm_vcpu kvm_mpidr_to_vcpu(struct kvm kvm, unsigned long mpidr);
4429fc64 AP	277
0865e636 RK	278	static inline void kvm_arch_hardware_unsetup(void) {}
	279	static inline void kvm_arch_sync_events(struct kvm *kvm) {}
	280	static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
	281	static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
3491caf2	282	static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
0865e636	283
56c7f5e7 AB	284	static inline void kvm_arm_init_debug(void) {}
	285	static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {}
	286	static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}
84e690bf	287	static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}
2227e439 CD	288
	289	int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
	290	struct kvm_device_attr *attr);
	291	int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
	292	struct kvm_device_attr *attr);
	293	int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
	294	struct kvm_device_attr *attr);
56c7f5e7	295
749cf76c	296	#endif /* __ARM_KVM_HOST_H__ */