[mirror_ubuntu-bionic-kernel.git] / arch / powerpc / kvm / powerpc.c

/*
 * 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>
 *          Christian Ehrhardt <ehrhardt@linux.vnet.ibm.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 <asm/cputable.h>
#include <asm/uaccess.h>
#include <asm/kvm_ppc.h>


gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
{
	return gfn;
}

int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
{
	/* XXX implement me */
	return 0;
}

int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
{
	return 1;
}


int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
{
	enum emulation_result er;
	int r;

	er = kvmppc_emulate_instruction(run, vcpu);
	switch (er) {
	case EMULATE_DONE:
		/* Future optimization: only reload non-volatiles if they were
		 * actually modified. */
		r = RESUME_GUEST_NV;
		break;
	case EMULATE_DO_MMIO:
		run->exit_reason = KVM_EXIT_MMIO;
		/* We must reload nonvolatiles because "update" load/store
		 * instructions modify register state. */
		/* Future optimization: only reload non-volatiles if they were
		 * actually modified. */
		r = RESUME_HOST_NV;
		break;
	case EMULATE_FAIL:
		/* XXX Deliver Program interrupt to guest. */
		printk(KERN_EMERG "%s: emulation failed (%08x)\n", __func__,
		       vcpu->arch.last_inst);
		r = RESUME_HOST;
		break;
	default:
		BUG();
	}

	return r;
}

void kvm_arch_hardware_enable(void *garbage)
{
}

void kvm_arch_hardware_disable(void *garbage)
{
}

int kvm_arch_hardware_setup(void)
{
	return 0;
}

void kvm_arch_hardware_unsetup(void)
{
}

void kvm_arch_check_processor_compat(void *rtn)
{
	int r;

	if (strcmp(cur_cpu_spec->platform, "ppc440") == 0)
		r = 0;
	else
		r = -ENOTSUPP;

	*(int *)rtn = r;
}

struct kvm *kvm_arch_create_vm(void)
{
	struct kvm *kvm;

	kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
	if (!kvm)
		return ERR_PTR(-ENOMEM);

	return kvm;
}

static void kvmppc_free_vcpus(struct kvm *kvm)
{
	unsigned int i;

	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
		if (kvm->vcpus[i]) {
			kvm_arch_vcpu_free(kvm->vcpus[i]);
			kvm->vcpus[i] = NULL;
		}
	}
}

void kvm_arch_destroy_vm(struct kvm *kvm)
{
	kvmppc_free_vcpus(kvm);
	kvm_free_physmem(kvm);
	kfree(kvm);
}

int kvm_dev_ioctl_check_extension(long ext)
{
	int r;

	switch (ext) {
	case KVM_CAP_USER_MEMORY:
		r = 1;
		break;
	default:
		r = 0;
		break;
	}
	return r;

}

long kvm_arch_dev_ioctl(struct file *filp,
                        unsigned int ioctl, unsigned long arg)
{
	return -EINVAL;
}

int kvm_arch_set_memory_region(struct kvm *kvm,
                               struct kvm_userspace_memory_region *mem,
                               struct kvm_memory_slot old,
                               int user_alloc)
{
	return 0;
}

struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
{
	struct kvm_vcpu *vcpu;
	int err;

	vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
	if (!vcpu) {
		err = -ENOMEM;
		goto out;
	}

	err = kvm_vcpu_init(vcpu, kvm, id);
	if (err)
		goto free_vcpu;

	return vcpu;

free_vcpu:
	kmem_cache_free(kvm_vcpu_cache, vcpu);
out:
	return ERR_PTR(err);
}

void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{
	kvm_vcpu_uninit(vcpu);
	kmem_cache_free(kvm_vcpu_cache, vcpu);
}

void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
{
	kvm_arch_vcpu_free(vcpu);
}

int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
{
	unsigned int priority = exception_priority[BOOKE_INTERRUPT_DECREMENTER];

	return test_bit(priority, &vcpu->arch.pending_exceptions);
}

static void kvmppc_decrementer_func(unsigned long data)
{
	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;

	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
}

int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
	setup_timer(&vcpu->arch.dec_timer, kvmppc_decrementer_func,
	            (unsigned long)vcpu);

	return 0;
}

void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
}

void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
}

void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{
}

void decache_vcpus_on_cpu(int cpu)
{
}

int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
                                    struct kvm_debug_guest *dbg)
{
	return -ENOTSUPP;
}

static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
                                     struct kvm_run *run)
{
	u32 *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];
	*gpr = run->dcr.data;
}

static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
                                      struct kvm_run *run)
{
	u32 *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];

	if (run->mmio.len > sizeof(*gpr)) {
		printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
		return;
	}

	if (vcpu->arch.mmio_is_bigendian) {
		switch (run->mmio.len) {
		case 4: *gpr = *(u32 *)run->mmio.data; break;
		case 2: *gpr = *(u16 *)run->mmio.data; break;
		case 1: *gpr = *(u8 *)run->mmio.data; break;
		}
	} else {
		/* Convert BE data from userland back to LE. */
		switch (run->mmio.len) {
		case 4: *gpr = ld_le32((u32 *)run->mmio.data); break;
		case 2: *gpr = ld_le16((u16 *)run->mmio.data); break;
		case 1: *gpr = *(u8 *)run->mmio.data; break;
		}
	}
}

int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
                       unsigned int rt, unsigned int bytes, int is_bigendian)
{
	if (bytes > sizeof(run->mmio.data)) {
		printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
		       run->mmio.len);
	}

	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
	run->mmio.len = bytes;
	run->mmio.is_write = 0;

	vcpu->arch.io_gpr = rt;
	vcpu->arch.mmio_is_bigendian = is_bigendian;
	vcpu->mmio_needed = 1;
	vcpu->mmio_is_write = 0;

	return EMULATE_DO_MMIO;
}

int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
                        u32 val, unsigned int bytes, int is_bigendian)
{
	void *data = run->mmio.data;

	if (bytes > sizeof(run->mmio.data)) {
		printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
		       run->mmio.len);
	}

	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
	run->mmio.len = bytes;
	run->mmio.is_write = 1;
	vcpu->mmio_needed = 1;
	vcpu->mmio_is_write = 1;

	/* Store the value at the lowest bytes in 'data'. */
	if (is_bigendian) {
		switch (bytes) {
		case 4: *(u32 *)data = val; break;
		case 2: *(u16 *)data = val; break;
		case 1: *(u8  *)data = val; break;
		}
	} else {
		/* Store LE value into 'data'. */
		switch (bytes) {
		case 4: st_le32(data, val); break;
		case 2: st_le16(data, val); break;
		case 1: *(u8 *)data = val; break;
		}
	}

	return EMULATE_DO_MMIO;
}

int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
	int r;
	sigset_t sigsaved;

	if (vcpu->sigset_active)
		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);

	if (vcpu->mmio_needed) {
		if (!vcpu->mmio_is_write)
			kvmppc_complete_mmio_load(vcpu, run);
		vcpu->mmio_needed = 0;
	} else if (vcpu->arch.dcr_needed) {
		if (!vcpu->arch.dcr_is_write)
			kvmppc_complete_dcr_load(vcpu, run);
		vcpu->arch.dcr_needed = 0;
	}

	kvmppc_check_and_deliver_interrupts(vcpu);

	local_irq_disable();
	kvm_guest_enter();
	r = __kvmppc_vcpu_run(run, vcpu);
	kvm_guest_exit();
	local_irq_enable();

	if (vcpu->sigset_active)
		sigprocmask(SIG_SETMASK, &sigsaved, NULL);

	return r;
}

int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
{
	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
	return 0;
}

int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                    struct kvm_mp_state *mp_state)
{
	return -EINVAL;
}

int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
                                    struct kvm_mp_state *mp_state)
{
	return -EINVAL;
}

long kvm_arch_vcpu_ioctl(struct file *filp,
                         unsigned int ioctl, unsigned long arg)
{
	struct kvm_vcpu *vcpu = filp->private_data;
	void __user *argp = (void __user *)arg;
	long r;

	switch (ioctl) {
	case KVM_INTERRUPT: {
		struct kvm_interrupt irq;
		r = -EFAULT;
		if (copy_from_user(&irq, argp, sizeof(irq)))
			goto out;
		r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
		break;
	}
	default:
		r = -EINVAL;
	}

out:
	return r;
}

int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
{
	return -ENOTSUPP;
}

long kvm_arch_vm_ioctl(struct file *filp,
                       unsigned int ioctl, unsigned long arg)
{
	long r;

	switch (ioctl) {
	default:
		r = -EINVAL;
	}

	return r;
}

int kvm_arch_init(void *opaque)
{
	return 0;
}

void kvm_arch_exit(void)
{
}
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	* Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
	19	*/
	20
	21	#include <linux/errno.h>
	22	#include <linux/err.h>
	23	#include <linux/kvm_host.h>
	24	#include <linux/module.h>
	25	#include <linux/vmalloc.h>
	26	#include <linux/fs.h>
	27	#include <asm/cputable.h>
	28	#include <asm/uaccess.h>
	29	#include <asm/kvm_ppc.h>
	30
	31
	32	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
	33	{
	34	return gfn;
	35	}
	36
	37	int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
	38	{
	39	/* XXX implement me */
	40	return 0;
	41	}
	42
	43	int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
	44	{
	45	return 1;
	46	}
	47
	48
	49	int kvmppc_emulate_mmio(struct kvm_run run, struct kvm_vcpu vcpu)
	50	{
	51	enum emulation_result er;
	52	int r;
	53
	54	er = kvmppc_emulate_instruction(run, vcpu);
	55	switch (er) {
	56	case EMULATE_DONE:
	57	/* Future optimization: only reload non-volatiles if they were
	58	* actually modified. */
	59	r = RESUME_GUEST_NV;
	60	break;
	61	case EMULATE_DO_MMIO:
	62	run->exit_reason = KVM_EXIT_MMIO;
	63	/* We must reload nonvolatiles because "update" load/store
	64	* instructions modify register state. */
65	/* Future optimization: only reload non-volatiles if they were
66	* actually modified. */
67	r = RESUME_HOST_NV;
68	break;
69	case EMULATE_FAIL:
70	/* XXX Deliver Program interrupt to guest. */
71	printk(KERN_EMERG "%s: emulation failed (%08x)\n", __func__,
72	vcpu->arch.last_inst);
73	r = RESUME_HOST;
74	break;
75	default:
76	BUG();
77	}
78
79	return r;
80	}
81
82	void kvm_arch_hardware_enable(void *garbage)
83	{
84	}
85
86	void kvm_arch_hardware_disable(void *garbage)
87	{
88	}
89
90	int kvm_arch_hardware_setup(void)
91	{
92	return 0;
93	}
94
95	void kvm_arch_hardware_unsetup(void)
96	{
97	}
98
99	void kvm_arch_check_processor_compat(void *rtn)
100	{
101	int r;
102
103	if (strcmp(cur_cpu_spec->platform, "ppc440") == 0)
104	r = 0;
105	else
106	r = -ENOTSUPP;
107
108	(int )rtn = r;
109	}
110
111	struct kvm *kvm_arch_create_vm(void)
112	{
113	struct kvm *kvm;
114
115	kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL);
116	if (!kvm)
117	return ERR_PTR(-ENOMEM);
118
119	return kvm;
120	}
121
122	static void kvmppc_free_vcpus(struct kvm *kvm)
123	{
124	unsigned int i;
125
126	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
127	if (kvm->vcpus[i]) {
128	kvm_arch_vcpu_free(kvm->vcpus[i]);
129	kvm->vcpus[i] = NULL;
130	}
131	}
132	}
133
134	void kvm_arch_destroy_vm(struct kvm *kvm)
135	{
136	kvmppc_free_vcpus(kvm);
137	kvm_free_physmem(kvm);
138	kfree(kvm);
139	}
140
141	int kvm_dev_ioctl_check_extension(long ext)
142	{
143	int r;
144
145	switch (ext) {
146	case KVM_CAP_USER_MEMORY:
147	r = 1;
148	break;
149	default:
150	r = 0;
151	break;
152	}
153	return r;
154
155	}
156
157	long kvm_arch_dev_ioctl(struct file *filp,
158	unsigned int ioctl, unsigned long arg)
159	{
160	return -EINVAL;
161	}
162
163	int kvm_arch_set_memory_region(struct kvm *kvm,
164	struct kvm_userspace_memory_region *mem,
165	struct kvm_memory_slot old,
166	int user_alloc)
167	{
168	return 0;
169	}
170
171	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id)
172	{
173	struct kvm_vcpu *vcpu;
174	int err;
175
176	vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
177	if (!vcpu) {
178	err = -ENOMEM;
179	goto out;
180	}
181
182	err = kvm_vcpu_init(vcpu, kvm, id);
183	if (err)
184	goto free_vcpu;
185
186	return vcpu;
187
188	free_vcpu:
189	kmem_cache_free(kvm_vcpu_cache, vcpu);
190	out:
191	return ERR_PTR(err);
192	}
193
194	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
195	{
196	kvm_vcpu_uninit(vcpu);
197	kmem_cache_free(kvm_vcpu_cache, vcpu);
198	}
199
200	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
201	{
202	kvm_arch_vcpu_free(vcpu);
203	}
204
205	int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
206	{
207	unsigned int priority = exception_priority[BOOKE_INTERRUPT_DECREMENTER];
208
209	return test_bit(priority, &vcpu->arch.pending_exceptions);
210	}
211
212	static void kvmppc_decrementer_func(unsigned long data)
213	{
214	struct kvm_vcpu vcpu = (struct kvm_vcpu )data;
215
216	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
217	}
218
219	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
220	{
221	setup_timer(&vcpu->arch.dec_timer, kvmppc_decrementer_func,
222	(unsigned long)vcpu);
223
224	return 0;
225	}
226
227	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
228	{
229	}
230
231	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
232	{
233	}
234
235	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
236	{
237	}
238
239	void decache_vcpus_on_cpu(int cpu)
240	{
241	}
242
243	int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
244	struct kvm_debug_guest *dbg)
245	{
246	return -ENOTSUPP;
247	}
248
249	static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
250	struct kvm_run *run)
251	{
252	u32 *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];
253	*gpr = run->dcr.data;
254	}
255
256	static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
257	struct kvm_run *run)
258	{
259	u32 *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];
260
261	if (run->mmio.len > sizeof(*gpr)) {
262	printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
263	return;
264	}
265
266	if (vcpu->arch.mmio_is_bigendian) {
267	switch (run->mmio.len) {
268	case 4: gpr = (u32 *)run->mmio.data; break;
269	case 2: gpr = (u16 *)run->mmio.data; break;
270	case 1: gpr = (u8 *)run->mmio.data; break;
271	}
272	} else {
273	/* Convert BE data from userland back to LE. */
274	switch (run->mmio.len) {
275	case 4: gpr = ld_le32((u32 )run->mmio.data); break;
276	case 2: gpr = ld_le16((u16 )run->mmio.data); break;
277	case 1: gpr = (u8 *)run->mmio.data; break;
278	}
279	}
280	}
281
282	int kvmppc_handle_load(struct kvm_run run, struct kvm_vcpu vcpu,
283	unsigned int rt, unsigned int bytes, int is_bigendian)
284	{
285	if (bytes > sizeof(run->mmio.data)) {
286	printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
287	run->mmio.len);
288	}
289
290	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
291	run->mmio.len = bytes;
292	run->mmio.is_write = 0;
293
294	vcpu->arch.io_gpr = rt;
295	vcpu->arch.mmio_is_bigendian = is_bigendian;
296	vcpu->mmio_needed = 1;
297	vcpu->mmio_is_write = 0;
298
299	return EMULATE_DO_MMIO;
300	}
301
302	int kvmppc_handle_store(struct kvm_run run, struct kvm_vcpu vcpu,
303	u32 val, unsigned int bytes, int is_bigendian)
304	{
305	void *data = run->mmio.data;
306
307	if (bytes > sizeof(run->mmio.data)) {
308	printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
309	run->mmio.len);
310	}
311
312	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
313	run->mmio.len = bytes;
314	run->mmio.is_write = 1;
315	vcpu->mmio_needed = 1;
316	vcpu->mmio_is_write = 1;
317
318	/* Store the value at the lowest bytes in 'data'. */
319	if (is_bigendian) {
320	switch (bytes) {
321	case 4: (u32 )data = val; break;
322	case 2: (u16 )data = val; break;
323	case 1: (u8 )data = val; break;
324	}
325	} else {
326	/* Store LE value into 'data'. */
327	switch (bytes) {
328	case 4: st_le32(data, val); break;
329	case 2: st_le16(data, val); break;
330	case 1: (u8 )data = val; break;
331	}
332	}
333
334	return EMULATE_DO_MMIO;
335	}
336
337	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run run)
338	{
339	int r;
340	sigset_t sigsaved;
341
342	if (vcpu->sigset_active)
343	sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
344
345	if (vcpu->mmio_needed) {
346	if (!vcpu->mmio_is_write)
347	kvmppc_complete_mmio_load(vcpu, run);
348	vcpu->mmio_needed = 0;
349	} else if (vcpu->arch.dcr_needed) {
350	if (!vcpu->arch.dcr_is_write)
351	kvmppc_complete_dcr_load(vcpu, run);
352	vcpu->arch.dcr_needed = 0;
353	}
354
355	kvmppc_check_and_deliver_interrupts(vcpu);
356
357	local_irq_disable();
358	kvm_guest_enter();
359	r = __kvmppc_vcpu_run(run, vcpu);
360	kvm_guest_exit();
361	local_irq_enable();
362
363	if (vcpu->sigset_active)
364	sigprocmask(SIG_SETMASK, &sigsaved, NULL);
365
366	return r;
367	}
368
369	int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu vcpu, struct kvm_interrupt irq)
370	{
371	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
372	return 0;
373	}
374
375	int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
376	struct kvm_mp_state *mp_state)
377	{
378	return -EINVAL;
379	}
380
381	int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
382	struct kvm_mp_state *mp_state)
383	{
384	return -EINVAL;
385	}
386
387	long kvm_arch_vcpu_ioctl(struct file *filp,
388	unsigned int ioctl, unsigned long arg)
389	{
390	struct kvm_vcpu *vcpu = filp->private_data;
391	void __user argp = (void __user )arg;
392	long r;
393
394	switch (ioctl) {
395	case KVM_INTERRUPT: {
396	struct kvm_interrupt irq;
397	r = -EFAULT;
398	if (copy_from_user(&irq, argp, sizeof(irq)))
399	goto out;
400	r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
401	break;
402	}
403	default:
404	r = -EINVAL;
405	}
406
407	out:
408	return r;
409	}
410
411	int kvm_vm_ioctl_get_dirty_log(struct kvm kvm, struct kvm_dirty_log log)
412	{
413	return -ENOTSUPP;
414	}
415
416	long kvm_arch_vm_ioctl(struct file *filp,
417	unsigned int ioctl, unsigned long arg)
418	{
419	long r;
420
421	switch (ioctl) {
422	default:
423	r = -EINVAL;
424	}
425
426	return r;
427	}
428
429	int kvm_arch_init(void *opaque)
430	{
431	return 0;
432	}
433
434	void kvm_arch_exit(void)
435	{
436	}