2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 NetApp, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/param.h>
35 #include <sys/cpuset.h>
36 #include <machine/vmm_dev.h>
39 * API version for out-of-tree consumers like grub-bhyve for making compile
42 #define VMMAPI_VERSION 0103 /* 2 digit major followed by 2 digit minor */
46 struct vm_snapshot_meta;
50 * Different styles of mapping the memory assigned to a VM into the address
51 * space of the controlling process.
54 VM_MMAP_NONE, /* no mapping */
55 VM_MMAP_ALL, /* fully and statically mapped */
56 VM_MMAP_SPARSE, /* mappings created on-demand */
60 * 'flags' value passed to 'vm_set_memflags()'.
62 #define VM_MEM_F_INCORE 0x01 /* include guest memory in core file */
63 #define VM_MEM_F_WIRED 0x02 /* guest memory is wired */
66 * Identifiers for memory segments:
67 * - vm_setup_memory() uses VM_SYSMEM for the system memory segment.
68 * - the remaining identifiers can be used to create devmem segments.
77 * Get the length and name of the memory segment identified by 'segid'.
78 * Note that system memory segments are identified with a nul name.
80 * Returns 0 on success and non-zero otherwise.
82 int vm_get_memseg(struct vmctx *ctx, int ident, size_t *lenp, char *name,
86 * Iterate over the guest address space. This function finds an address range
87 * that starts at an address >= *gpa.
89 * Returns 0 if the next address range was found and non-zero otherwise.
91 int vm_mmap_getnext(struct vmctx *ctx, vm_paddr_t *gpa, int *segid,
92 vm_ooffset_t *segoff, size_t *len, int *prot, int *flags);
94 int vm_get_guestmem_from_ctx(struct vmctx *ctx, char **guest_baseaddr,
95 size_t *lowmem_size, size_t *highmem_size);
98 * Create a device memory segment identified by 'segid'.
100 * Returns a pointer to the memory segment on success and MAP_FAILED otherwise.
102 void *vm_create_devmem(struct vmctx *ctx, int segid, const char *name,
106 * Map the memory segment identified by 'segid' into the guest address space
107 * at [gpa,gpa+len) with protection 'prot'.
109 int vm_mmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, int segid,
110 vm_ooffset_t segoff, size_t len, int prot);
112 int vm_create(const char *name);
113 int vm_get_device_fd(struct vmctx *ctx);
114 struct vmctx *vm_open(const char *name);
115 void vm_destroy(struct vmctx *ctx);
116 int vm_parse_memsize(const char *optarg, size_t *memsize);
117 int vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s);
118 void *vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len);
119 /* inverse operation to vm_map_gpa - extract guest address from host pointer */
120 vm_paddr_t vm_rev_map_gpa(struct vmctx *ctx, void *addr);
121 int vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num);
122 int vm_gla2gpa(struct vmctx *, int vcpuid, struct vm_guest_paging *paging,
123 uint64_t gla, int prot, uint64_t *gpa, int *fault);
124 int vm_gla2gpa_nofault(struct vmctx *, int vcpuid,
125 struct vm_guest_paging *paging, uint64_t gla, int prot,
126 uint64_t *gpa, int *fault);
127 uint32_t vm_get_lowmem_limit(struct vmctx *ctx);
128 void vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit);
129 void vm_set_memflags(struct vmctx *ctx, int flags);
130 int vm_get_memflags(struct vmctx *ctx);
131 int vm_get_name(struct vmctx *ctx, char *buffer, size_t max_len);
132 size_t vm_get_lowmem_size(struct vmctx *ctx);
133 size_t vm_get_highmem_size(struct vmctx *ctx);
134 int vm_set_desc(struct vmctx *ctx, int vcpu, int reg,
135 uint64_t base, uint32_t limit, uint32_t access);
136 int vm_get_desc(struct vmctx *ctx, int vcpu, int reg,
137 uint64_t *base, uint32_t *limit, uint32_t *access);
138 int vm_get_seg_desc(struct vmctx *ctx, int vcpu, int reg,
139 struct seg_desc *seg_desc);
140 int vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val);
141 int vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
142 int vm_set_register_set(struct vmctx *ctx, int vcpu, unsigned int count,
143 const int *regnums, uint64_t *regvals);
144 int vm_get_register_set(struct vmctx *ctx, int vcpu, unsigned int count,
145 const int *regnums, uint64_t *regvals);
146 int vm_run(struct vmctx *ctx, int vcpu, struct vm_exit *ret_vmexit);
147 int vm_suspend(struct vmctx *ctx, enum vm_suspend_how how);
148 int vm_reinit(struct vmctx *ctx);
149 int vm_apicid2vcpu(struct vmctx *ctx, int apicid);
150 int vm_inject_exception(struct vmctx *ctx, int vcpu, int vector,
151 int errcode_valid, uint32_t errcode, int restart_instruction);
152 int vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector);
153 int vm_lapic_local_irq(struct vmctx *ctx, int vcpu, int vector);
154 int vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
155 int vm_ioapic_assert_irq(struct vmctx *ctx, int irq);
156 int vm_ioapic_deassert_irq(struct vmctx *ctx, int irq);
157 int vm_ioapic_pulse_irq(struct vmctx *ctx, int irq);
158 int vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
159 int vm_isa_assert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
160 int vm_isa_deassert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
161 int vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
162 int vm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq,
163 enum vm_intr_trigger trigger);
164 int vm_inject_nmi(struct vmctx *ctx, int vcpu);
165 int vm_capability_name2type(const char *capname);
166 const char *vm_capability_type2name(int type);
167 int vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
169 int vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
171 int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
172 int vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
173 int vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
174 vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
175 int vm_setup_pptdev_msi(struct vmctx *ctx, int vcpu, int bus, int slot,
176 int func, uint64_t addr, uint64_t msg, int numvec);
177 int vm_setup_pptdev_msix(struct vmctx *ctx, int vcpu, int bus, int slot,
178 int func, int idx, uint64_t addr, uint64_t msg,
179 uint32_t vector_control);
181 int vm_get_intinfo(struct vmctx *ctx, int vcpu, uint64_t *i1, uint64_t *i2);
182 int vm_set_intinfo(struct vmctx *ctx, int vcpu, uint64_t exit_intinfo);
184 const cap_ioctl_t *vm_get_ioctls(size_t *len);
187 * Return a pointer to the statistics buffer. Note that this is not MT-safe.
189 uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
191 const char *vm_get_stat_desc(struct vmctx *ctx, int index);
193 int vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
194 int vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
196 int vm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities);
199 * Translate the GLA range [gla,gla+len) into GPA segments in 'iov'.
200 * The 'iovcnt' should be big enough to accommodate all GPA segments.
202 * retval fault Interpretation
204 * 0 1 An exception was injected into the guest
207 int vm_copy_setup(struct vmctx *ctx, int vcpu, struct vm_guest_paging *pg,
208 uint64_t gla, size_t len, int prot, struct iovec *iov, int iovcnt,
210 void vm_copyin(struct vmctx *ctx, int vcpu, struct iovec *guest_iov,
211 void *host_dst, size_t len);
212 void vm_copyout(struct vmctx *ctx, int vcpu, const void *host_src,
213 struct iovec *guest_iov, size_t len);
214 void vm_copy_teardown(struct vmctx *ctx, int vcpu, struct iovec *iov,
218 int vm_rtc_write(struct vmctx *ctx, int offset, uint8_t value);
219 int vm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval);
220 int vm_rtc_settime(struct vmctx *ctx, time_t secs);
221 int vm_rtc_gettime(struct vmctx *ctx, time_t *secs);
223 /* Reset vcpu register state */
224 int vcpu_reset(struct vmctx *ctx, int vcpu);
226 int vm_active_cpus(struct vmctx *ctx, cpuset_t *cpus);
227 int vm_suspended_cpus(struct vmctx *ctx, cpuset_t *cpus);
228 int vm_debug_cpus(struct vmctx *ctx, cpuset_t *cpus);
229 int vm_activate_cpu(struct vmctx *ctx, int vcpu);
230 int vm_suspend_cpu(struct vmctx *ctx, int vcpu);
231 int vm_resume_cpu(struct vmctx *ctx, int vcpu);
234 int vm_set_topology(struct vmctx *ctx, uint16_t sockets, uint16_t cores,
235 uint16_t threads, uint16_t maxcpus);
236 int vm_get_topology(struct vmctx *ctx, uint16_t *sockets, uint16_t *cores,
237 uint16_t *threads, uint16_t *maxcpus);
240 * FreeBSD specific APIs
242 int vm_setup_freebsd_registers(struct vmctx *ctx, int vcpu,
243 uint64_t rip, uint64_t cr3, uint64_t gdtbase,
245 int vm_setup_freebsd_registers_i386(struct vmctx *vmctx, int vcpu,
246 uint32_t eip, uint32_t gdtbase,
248 void vm_setup_freebsd_gdt(uint64_t *gdtr);
254 #define MAX_SNAPSHOT_VMNAME 100
256 enum checkpoint_opcodes {
257 START_CHECKPOINT = 0,
261 struct checkpoint_op {
263 char snapshot_filename[MAX_SNAPSHOT_VMNAME];
266 int vm_snapshot_req(struct vm_snapshot_meta *meta);
267 int vm_restore_time(struct vmctx *ctx);
269 #endif /* _VMMAPI_H_ */