[linux-2.6-block.git] / arch / arm / kvm / guest.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
 */

#include <linux/errno.h>
#include <linux/err.h>
#include <linux/kvm_host.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <kvm/arm_psci.h>
#include <asm/cputype.h>
#include <linux/uaccess.h>
#include <asm/kvm.h>
#include <asm/kvm_emulate.h>
#include <asm/kvm_coproc.h>

#define VM_STAT(x) { #x, offsetof(struct kvm, stat.x), KVM_STAT_VM }
#define VCPU_STAT(x) { #x, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU }

struct kvm_stats_debugfs_item debugfs_entries[] = {
	VCPU_STAT(hvc_exit_stat),
	VCPU_STAT(wfe_exit_stat),
	VCPU_STAT(wfi_exit_stat),
	VCPU_STAT(mmio_exit_user),
	VCPU_STAT(mmio_exit_kernel),
	VCPU_STAT(exits),
	{ NULL }
};

int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
	return 0;
}

static u64 core_reg_offset_from_id(u64 id)
{
	return id & ~(KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_CORE);
}

static int get_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	u32 __user *uaddr = (u32 __user *)(long)reg->addr;
	struct kvm_regs *regs = &vcpu->arch.ctxt.gp_regs;
	u64 off;

	if (KVM_REG_SIZE(reg->id) != 4)
		return -ENOENT;

	/* Our ID is an index into the kvm_regs struct. */
	off = core_reg_offset_from_id(reg->id);
	if (off >= sizeof(*regs) / KVM_REG_SIZE(reg->id))
		return -ENOENT;

	return put_user(((u32 *)regs)[off], uaddr);
}

static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	u32 __user *uaddr = (u32 __user *)(long)reg->addr;
	struct kvm_regs *regs = &vcpu->arch.ctxt.gp_regs;
	u64 off, val;

	if (KVM_REG_SIZE(reg->id) != 4)
		return -ENOENT;

	/* Our ID is an index into the kvm_regs struct. */
	off = core_reg_offset_from_id(reg->id);
	if (off >= sizeof(*regs) / KVM_REG_SIZE(reg->id))
		return -ENOENT;

	if (get_user(val, uaddr) != 0)
		return -EFAULT;

	if (off == KVM_REG_ARM_CORE_REG(usr_regs.ARM_cpsr)) {
		unsigned long mode = val & MODE_MASK;
		switch (mode) {
		case USR_MODE:
		case FIQ_MODE:
		case IRQ_MODE:
		case SVC_MODE:
		case ABT_MODE:
		case UND_MODE:
			break;
		default:
			return -EINVAL;
		}
	}

	((u32 *)regs)[off] = val;
	return 0;
}

int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
	return -EINVAL;
}

#define NUM_TIMER_REGS 3

static bool is_timer_reg(u64 index)
{
	switch (index) {
	case KVM_REG_ARM_TIMER_CTL:
	case KVM_REG_ARM_TIMER_CNT:
	case KVM_REG_ARM_TIMER_CVAL:
		return true;
	}
	return false;
}

static int copy_timer_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
{
	if (put_user(KVM_REG_ARM_TIMER_CTL, uindices))
		return -EFAULT;
	uindices++;
	if (put_user(KVM_REG_ARM_TIMER_CNT, uindices))
		return -EFAULT;
	uindices++;
	if (put_user(KVM_REG_ARM_TIMER_CVAL, uindices))
		return -EFAULT;

	return 0;
}

static int set_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	void __user *uaddr = (void __user *)(long)reg->addr;
	u64 val;
	int ret;

	ret = copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id));
	if (ret != 0)
		return -EFAULT;

	return kvm_arm_timer_set_reg(vcpu, reg->id, val);
}

static int get_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	void __user *uaddr = (void __user *)(long)reg->addr;
	u64 val;

	val = kvm_arm_timer_get_reg(vcpu, reg->id);
	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0;
}

static unsigned long num_core_regs(void)
{
	return sizeof(struct kvm_regs) / sizeof(u32);
}

/**
 * kvm_arm_num_regs - how many registers do we present via KVM_GET_ONE_REG
 *
 * This is for all registers.
 */
unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu)
{
	return num_core_regs() + kvm_arm_num_coproc_regs(vcpu)
		+ kvm_arm_get_fw_num_regs(vcpu)
		+ NUM_TIMER_REGS;
}

/**
 * kvm_arm_copy_reg_indices - get indices of all registers.
 *
 * We do core registers right here, then we append coproc regs.
 */
int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
{
	unsigned int i;
	const u64 core_reg = KVM_REG_ARM | KVM_REG_SIZE_U32 | KVM_REG_ARM_CORE;
	int ret;

	for (i = 0; i < sizeof(struct kvm_regs)/sizeof(u32); i++) {
		if (put_user(core_reg | i, uindices))
			return -EFAULT;
		uindices++;
	}

	ret = kvm_arm_copy_fw_reg_indices(vcpu, uindices);
	if (ret)
		return ret;
	uindices += kvm_arm_get_fw_num_regs(vcpu);

	ret = copy_timer_indices(vcpu, uindices);
	if (ret)
		return ret;
	uindices += NUM_TIMER_REGS;

	return kvm_arm_copy_coproc_indices(vcpu, uindices);
}

int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	/* We currently use nothing arch-specific in upper 32 bits */
	if ((reg->id & ~KVM_REG_SIZE_MASK) >> 32 != KVM_REG_ARM >> 32)
		return -EINVAL;

	/* Register group 16 means we want a core register. */
	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
		return get_core_reg(vcpu, reg);

	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
		return kvm_arm_get_fw_reg(vcpu, reg);

	if (is_timer_reg(reg->id))
		return get_timer_reg(vcpu, reg);

	return kvm_arm_coproc_get_reg(vcpu, reg);
}

int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
{
	/* We currently use nothing arch-specific in upper 32 bits */
	if ((reg->id & ~KVM_REG_SIZE_MASK) >> 32 != KVM_REG_ARM >> 32)
		return -EINVAL;

	/* Register group 16 means we set a core register. */
	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
		return set_core_reg(vcpu, reg);

	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
		return kvm_arm_set_fw_reg(vcpu, reg);

	if (is_timer_reg(reg->id))
		return set_timer_reg(vcpu, reg);

	return kvm_arm_coproc_set_reg(vcpu, reg);
}

int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
				  struct kvm_sregs *sregs)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
				  struct kvm_sregs *sregs)
{
	return -EINVAL;
}


int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu,
			      struct kvm_vcpu_events *events)
{
	events->exception.serror_pending = !!(*vcpu_hcr(vcpu) & HCR_VA);

	return 0;
}

int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
			      struct kvm_vcpu_events *events)
{
	bool serror_pending = events->exception.serror_pending;
	bool has_esr = events->exception.serror_has_esr;

	if (serror_pending && has_esr)
		return -EINVAL;
	else if (serror_pending)
		kvm_inject_vabt(vcpu);

	return 0;
}

int __attribute_const__ kvm_target_cpu(void)
{
	switch (read_cpuid_part()) {
	case ARM_CPU_PART_CORTEX_A7:
		return KVM_ARM_TARGET_CORTEX_A7;
	case ARM_CPU_PART_CORTEX_A15:
		return KVM_ARM_TARGET_CORTEX_A15;
	default:
		return -EINVAL;
	}
}

int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
{
	int target = kvm_target_cpu();

	if (target < 0)
		return -ENODEV;

	memset(init, 0, sizeof(*init));

	/*
	 * For now, we don't return any features.
	 * In future, we might use features to return target
	 * specific features available for the preferred
	 * target type.
	 */
	init->target = (__u32)target;

	return 0;
}

int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
				  struct kvm_translation *tr)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
					struct kvm_guest_debug *dbg)
{
	return -EINVAL;
}

int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr)
{
	int ret;

	switch (attr->group) {
	case KVM_ARM_VCPU_TIMER_CTRL:
		ret = kvm_arm_timer_set_attr(vcpu, attr);
		break;
	default:
		ret = -ENXIO;
		break;
	}

	return ret;
}

int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr)
{
	int ret;

	switch (attr->group) {
	case KVM_ARM_VCPU_TIMER_CTRL:
		ret = kvm_arm_timer_get_attr(vcpu, attr);
		break;
	default:
		ret = -ENXIO;
		break;
	}

	return ret;
}

int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
			       struct kvm_device_attr *attr)
{
	int ret;

	switch (attr->group) {
	case KVM_ARM_VCPU_TIMER_CTRL:
		ret = kvm_arm_timer_has_attr(vcpu, attr);
		break;
	default:
		ret = -ENXIO;
		break;
	}

	return ret;
}
Commit	Line	Data
d94d71cb	1	// SPDX-License-Identifier: GPL-2.0-only
749cf76c CD	2	/*
	3	* Copyright (C) 2012 - Virtual Open Systems and Columbia University
	4	* Author: Christoffer Dall <c.dall@virtualopensystems.com>
749cf76c CD	5	*/
	6
	7	#include <linux/errno.h>
	8	#include <linux/err.h>
	9	#include <linux/kvm_host.h>
	10	#include <linux/module.h>
	11	#include <linux/vmalloc.h>
	12	#include <linux/fs.h>
85bd0ba1	13	#include <kvm/arm_psci.h>
728d577d	14	#include <asm/cputype.h>
7c0f6ba6	15	#include <linux/uaccess.h>
749cf76c	16	#include <asm/kvm.h>
749cf76c	17	#include <asm/kvm_emulate.h>
1138245c	18	#include <asm/kvm_coproc.h>
749cf76c CD	19
	20	#define VM_STAT(x) { #x, offsetof(struct kvm, stat.x), KVM_STAT_VM }
	21	#define VCPU_STAT(x) { #x, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU }
	22
	23	struct kvm_stats_debugfs_item debugfs_entries[] = {
b19e6892 AT	24	VCPU_STAT(hvc_exit_stat),
	25	VCPU_STAT(wfe_exit_stat),
	26	VCPU_STAT(wfi_exit_stat),
	27	VCPU_STAT(mmio_exit_user),
	28	VCPU_STAT(mmio_exit_kernel),
	29	VCPU_STAT(exits),
749cf76c CD	30	{ NULL }
	31	};
	32
	33	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
	34	{
	35	return 0;
	36	}
	37
	38	static u64 core_reg_offset_from_id(u64 id)
	39	{
	40	return id & ~(KVM_REG_ARCH_MASK \| KVM_REG_SIZE_MASK \| KVM_REG_ARM_CORE);
	41	}
	42
	43	static int get_core_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	44	{
	45	u32 __user uaddr = (u32 __user )(long)reg->addr;
c2a8dab5	46	struct kvm_regs *regs = &vcpu->arch.ctxt.gp_regs;
749cf76c CD	47	u64 off;
	48
	49	if (KVM_REG_SIZE(reg->id) != 4)
	50	return -ENOENT;
	51
	52	/* Our ID is an index into the kvm_regs struct. */
	53	off = core_reg_offset_from_id(reg->id);
	54	if (off >= sizeof(*regs) / KVM_REG_SIZE(reg->id))
	55	return -ENOENT;
	56
	57	return put_user(((u32 *)regs)[off], uaddr);
	58	}
	59
	60	static int set_core_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	61	{
	62	u32 __user uaddr = (u32 __user )(long)reg->addr;
c2a8dab5	63	struct kvm_regs *regs = &vcpu->arch.ctxt.gp_regs;
749cf76c CD	64	u64 off, val;
	65
	66	if (KVM_REG_SIZE(reg->id) != 4)
	67	return -ENOENT;
	68
	69	/* Our ID is an index into the kvm_regs struct. */
	70	off = core_reg_offset_from_id(reg->id);
	71	if (off >= sizeof(*regs) / KVM_REG_SIZE(reg->id))
	72	return -ENOENT;
	73
	74	if (get_user(val, uaddr) != 0)
	75	return -EFAULT;
	76
	77	if (off == KVM_REG_ARM_CORE_REG(usr_regs.ARM_cpsr)) {
	78	unsigned long mode = val & MODE_MASK;
	79	switch (mode) {
	80	case USR_MODE:
	81	case FIQ_MODE:
	82	case IRQ_MODE:
	83	case SVC_MODE:
	84	case ABT_MODE:
	85	case UND_MODE:
	86	break;
	87	default:
	88	return -EINVAL;
	89	}
	90	}
	91
	92	((u32 *)regs)[off] = val;
	93	return 0;
	94	}
	95
	96	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs)
	97	{
	98	return -EINVAL;
	99	}
	100
	101	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs)
	102	{
	103	return -EINVAL;
	104	}
	105
39735a3a AP	106	#define NUM_TIMER_REGS 3
	107
	108	static bool is_timer_reg(u64 index)
	109	{
	110	switch (index) {
	111	case KVM_REG_ARM_TIMER_CTL:
	112	case KVM_REG_ARM_TIMER_CNT:
	113	case KVM_REG_ARM_TIMER_CVAL:
	114	return true;
	115	}
	116	return false;
	117	}
	118
	119	static int copy_timer_indices(struct kvm_vcpu vcpu, u64 __user uindices)
	120	{
	121	if (put_user(KVM_REG_ARM_TIMER_CTL, uindices))
	122	return -EFAULT;
	123	uindices++;
	124	if (put_user(KVM_REG_ARM_TIMER_CNT, uindices))
	125	return -EFAULT;
	126	uindices++;
	127	if (put_user(KVM_REG_ARM_TIMER_CVAL, uindices))
	128	return -EFAULT;
	129
	130	return 0;
	131	}
	132
39735a3a AP	133	static int set_timer_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	134	{
	135	void __user uaddr = (void __user )(long)reg->addr;
	136	u64 val;
	137	int ret;
	138
	139	ret = copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id));
	140	if (ret != 0)
bd218bce	141	return -EFAULT;
39735a3a AP	142
	143	return kvm_arm_timer_set_reg(vcpu, reg->id, val);
	144	}
	145
	146	static int get_timer_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	147	{
	148	void __user uaddr = (void __user )(long)reg->addr;
	149	u64 val;
	150
	151	val = kvm_arm_timer_get_reg(vcpu, reg->id);
4cad67fc	152	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0;
39735a3a AP	153	}
39735a3a AP	154
749cf76c CD	155	static unsigned long num_core_regs(void)
	156	{
	157	return sizeof(struct kvm_regs) / sizeof(u32);
	158	}
	159
	160	/**
	161	* kvm_arm_num_regs - how many registers do we present via KVM_GET_ONE_REG
	162	*
	163	* This is for all registers.
	164	*/
	165	unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu)
	166	{
39735a3a	167	return num_core_regs() + kvm_arm_num_coproc_regs(vcpu)
85bd0ba1	168	+ kvm_arm_get_fw_num_regs(vcpu)
39735a3a	169	+ NUM_TIMER_REGS;
749cf76c CD	170	}
	171
	172	/**
	173	* kvm_arm_copy_reg_indices - get indices of all registers.
	174	*
6a727b0b	175	* We do core registers right here, then we append coproc regs.
749cf76c CD	176	*/
	177	int kvm_arm_copy_reg_indices(struct kvm_vcpu vcpu, u64 __user uindices)
	178	{
	179	unsigned int i;
	180	const u64 core_reg = KVM_REG_ARM \| KVM_REG_SIZE_U32 \| KVM_REG_ARM_CORE;
39735a3a	181	int ret;
749cf76c CD	182
	183	for (i = 0; i < sizeof(struct kvm_regs)/sizeof(u32); i++) {
	184	if (put_user(core_reg \| i, uindices))
	185	return -EFAULT;
	186	uindices++;
	187	}
	188
85bd0ba1 MZ	189	ret = kvm_arm_copy_fw_reg_indices(vcpu, uindices);
	190	if (ret)
	191	return ret;
	192	uindices += kvm_arm_get_fw_num_regs(vcpu);
	193
39735a3a AP	194	ret = copy_timer_indices(vcpu, uindices);
	195	if (ret)
	196	return ret;
	197	uindices += NUM_TIMER_REGS;
	198
1138245c	199	return kvm_arm_copy_coproc_indices(vcpu, uindices);
749cf76c CD	200	}
	201
	202	int kvm_arm_get_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	203	{
	204	/* We currently use nothing arch-specific in upper 32 bits */
	205	if ((reg->id & ~KVM_REG_SIZE_MASK) >> 32 != KVM_REG_ARM >> 32)
	206	return -EINVAL;
	207
	208	/* Register group 16 means we want a core register. */
	209	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
	210	return get_core_reg(vcpu, reg);
	211
85bd0ba1 MZ	212	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
	213	return kvm_arm_get_fw_reg(vcpu, reg);
	214
39735a3a AP	215	if (is_timer_reg(reg->id))
	216	return get_timer_reg(vcpu, reg);
	217
1138245c	218	return kvm_arm_coproc_get_reg(vcpu, reg);
749cf76c CD	219	}
	220
	221	int kvm_arm_set_reg(struct kvm_vcpu vcpu, const struct kvm_one_reg reg)
	222	{
	223	/* We currently use nothing arch-specific in upper 32 bits */
	224	if ((reg->id & ~KVM_REG_SIZE_MASK) >> 32 != KVM_REG_ARM >> 32)
	225	return -EINVAL;
	226
	227	/* Register group 16 means we set a core register. */
	228	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
	229	return set_core_reg(vcpu, reg);
39735a3a	230
85bd0ba1 MZ	231	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
	232	return kvm_arm_set_fw_reg(vcpu, reg);
	233
39735a3a AP	234	if (is_timer_reg(reg->id))
39735a3a AP	235	return set_timer_reg(vcpu, reg);
749cf76c	236
1138245c	237	return kvm_arm_coproc_set_reg(vcpu, reg);
749cf76c CD	238	}
	239
	240	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	241	struct kvm_sregs *sregs)
	242	{
	243	return -EINVAL;
	244	}
	245
	246	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	247	struct kvm_sregs *sregs)
	248	{
	249	return -EINVAL;
	250	}
	251
b0960b95 JM	252
	253	int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu,
	254	struct kvm_vcpu_events *events)
	255	{
	256	events->exception.serror_pending = !!(*vcpu_hcr(vcpu) & HCR_VA);
	257
	258	return 0;
	259	}
	260
	261	int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
	262	struct kvm_vcpu_events *events)
	263	{
	264	bool serror_pending = events->exception.serror_pending;
	265	bool has_esr = events->exception.serror_has_esr;
	266
	267	if (serror_pending && has_esr)
	268	return -EINVAL;
	269	else if (serror_pending)
	270	kvm_inject_vabt(vcpu);
	271
	272	return 0;
	273	}
	274
728d577d MZ	275	int __attribute_const__ kvm_target_cpu(void)
728d577d MZ	276	{
af040ffc	277	switch (read_cpuid_part()) {
e8c2d99f JA	278	case ARM_CPU_PART_CORTEX_A7:
e8c2d99f JA	279	return KVM_ARM_TARGET_CORTEX_A7;
728d577d MZ	280	case ARM_CPU_PART_CORTEX_A15:
	281	return KVM_ARM_TARGET_CORTEX_A15;
	282	default:
	283	return -EINVAL;
	284	}
	285	}
	286
4a6fee80 AP	287	int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
	288	{
	289	int target = kvm_target_cpu();
	290
	291	if (target < 0)
	292	return -ENODEV;
	293
	294	memset(init, 0, sizeof(*init));
	295
	296	/*
	297	* For now, we don't return any features.
	298	* In future, we might use features to return target
	299	* specific features available for the preferred
	300	* target type.
	301	*/
	302	init->target = (__u32)target;
	303
	304	return 0;
	305	}
	306
749cf76c CD	307	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu)
	308	{
	309	return -EINVAL;
	310	}
	311
	312	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu)
	313	{
	314	return -EINVAL;
	315	}
	316
	317	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	318	struct kvm_translation *tr)
	319	{
	320	return -EINVAL;
	321	}
0e6f07f2 AB	322
	323	int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
	324	struct kvm_guest_debug *dbg)
	325	{
	326	return -EINVAL;
	327	}
2227e439 CD	328
	329	int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
	330	struct kvm_device_attr *attr)
	331	{
	332	int ret;
	333
	334	switch (attr->group) {
99a1db7a CD	335	case KVM_ARM_VCPU_TIMER_CTRL:
	336	ret = kvm_arm_timer_set_attr(vcpu, attr);
	337	break;
2227e439 CD	338	default:
	339	ret = -ENXIO;
	340	break;
	341	}
	342
	343	return ret;
	344	}
	345
	346	int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
	347	struct kvm_device_attr *attr)
	348	{
	349	int ret;
	350
	351	switch (attr->group) {
99a1db7a CD	352	case KVM_ARM_VCPU_TIMER_CTRL:
	353	ret = kvm_arm_timer_get_attr(vcpu, attr);
	354	break;
2227e439 CD	355	default:
	356	ret = -ENXIO;
	357	break;
	358	}
	359
	360	return ret;
	361	}
	362
	363	int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
	364	struct kvm_device_attr *attr)
	365	{
	366	int ret;
	367
	368	switch (attr->group) {
99a1db7a CD	369	case KVM_ARM_VCPU_TIMER_CTRL:
	370	ret = kvm_arm_timer_has_attr(vcpu, attr);
	371	break;
2227e439 CD	372	default:
	373	ret = -ENXIO;
	374	break;
	375	}
	376
	377	return ret;
	378	}