2 * SPDX-License-Identifier: BSD-2-Clause
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)
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34 #include <sys/cdefs.h>
35 #include <sys/param.h>
36 #include <sys/cpuset.h>
37 #include <machine/vmm.h>
38 #include <machine/vmm_dev.h>
43 * API version for out-of-tree consumers like grub-bhyve for making compile
46 #define VMMAPI_VERSION 0200 /* 2 digit major followed by 2 digit minor */
51 struct vm_snapshot_meta;
55 * Different styles of mapping the memory assigned to a VM into the address
56 * space of the controlling process.
59 VM_MMAP_NONE, /* no mapping */
60 VM_MMAP_ALL, /* fully and statically mapped */
61 VM_MMAP_SPARSE, /* mappings created on-demand */
65 * 'flags' value passed to 'vm_set_memflags()'.
67 #define VM_MEM_F_INCORE 0x01 /* include guest memory in core file */
68 #define VM_MEM_F_WIRED 0x02 /* guest memory is wired */
71 * Identifiers for memory segments:
72 * - vm_setup_memory() uses VM_SYSMEM for the system memory segment.
73 * - the remaining identifiers can be used to create devmem segments.
84 * Get the length and name of the memory segment identified by 'segid'.
85 * Note that system memory segments are identified with a nul name.
87 * Returns 0 on success and non-zero otherwise.
89 int vm_get_memseg(struct vmctx *ctx, int ident, size_t *lenp, char *name,
93 * Iterate over the guest address space. This function finds an address range
94 * that starts at an address >= *gpa.
96 * Returns 0 if the next address range was found and non-zero otherwise.
98 int vm_mmap_getnext(struct vmctx *ctx, vm_paddr_t *gpa, int *segid,
99 vm_ooffset_t *segoff, size_t *len, int *prot, int *flags);
101 int vm_get_guestmem_from_ctx(struct vmctx *ctx, char **guest_baseaddr,
102 size_t *lowmem_size, size_t *highmem_size);
105 * Create a device memory segment identified by 'segid'.
107 * Returns a pointer to the memory segment on success and MAP_FAILED otherwise.
109 void *vm_create_devmem(struct vmctx *ctx, int segid, const char *name,
113 * Map the memory segment identified by 'segid' into the guest address space
114 * at [gpa,gpa+len) with protection 'prot'.
116 int vm_mmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, int segid,
117 vm_ooffset_t segoff, size_t len, int prot);
119 int vm_munmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, size_t len);
121 int vm_create(const char *name);
122 struct vmctx *vm_open(const char *name);
123 void vm_close(struct vmctx *ctx);
124 void vm_destroy(struct vmctx *ctx);
125 int vm_limit_rights(struct vmctx *ctx);
126 struct vcpu *vm_vcpu_open(struct vmctx *ctx, int vcpuid);
127 void vm_vcpu_close(struct vcpu *vcpu);
128 int vcpu_id(struct vcpu *vcpu);
129 int vm_parse_memsize(const char *optarg, size_t *memsize);
130 int vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s);
131 void *vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len);
132 /* inverse operation to vm_map_gpa - extract guest address from host pointer */
133 vm_paddr_t vm_rev_map_gpa(struct vmctx *ctx, void *addr);
134 int vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num);
135 int vm_gla2gpa(struct vcpu *vcpu, struct vm_guest_paging *paging,
136 uint64_t gla, int prot, uint64_t *gpa, int *fault);
137 int vm_gla2gpa_nofault(struct vcpu *vcpu,
138 struct vm_guest_paging *paging, uint64_t gla, int prot,
139 uint64_t *gpa, int *fault);
140 uint32_t vm_get_lowmem_limit(struct vmctx *ctx);
141 void vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit);
142 void vm_set_memflags(struct vmctx *ctx, int flags);
143 int vm_get_memflags(struct vmctx *ctx);
144 const char *vm_get_name(struct vmctx *ctx);
145 size_t vm_get_lowmem_size(struct vmctx *ctx);
146 size_t vm_get_highmem_size(struct vmctx *ctx);
147 int vm_set_desc(struct vcpu *vcpu, int reg,
148 uint64_t base, uint32_t limit, uint32_t access);
149 int vm_get_desc(struct vcpu *vcpu, int reg,
150 uint64_t *base, uint32_t *limit, uint32_t *access);
151 int vm_get_seg_desc(struct vcpu *vcpu, int reg, struct seg_desc *seg_desc);
152 int vm_set_register(struct vcpu *vcpu, int reg, uint64_t val);
153 int vm_get_register(struct vcpu *vcpu, int reg, uint64_t *retval);
154 int vm_set_register_set(struct vcpu *vcpu, unsigned int count,
155 const int *regnums, uint64_t *regvals);
156 int vm_get_register_set(struct vcpu *vcpu, unsigned int count,
157 const int *regnums, uint64_t *regvals);
158 int vm_run(struct vcpu *vcpu, struct vm_run *vmrun);
159 int vm_suspend(struct vmctx *ctx, enum vm_suspend_how how);
160 int vm_reinit(struct vmctx *ctx);
161 int vm_apicid2vcpu(struct vmctx *ctx, int apicid);
162 int vm_inject_exception(struct vcpu *vcpu, int vector,
163 int errcode_valid, uint32_t errcode, int restart_instruction);
164 int vm_lapic_irq(struct vcpu *vcpu, int vector);
165 int vm_lapic_local_irq(struct vcpu *vcpu, int vector);
166 int vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
167 int vm_ioapic_assert_irq(struct vmctx *ctx, int irq);
168 int vm_ioapic_deassert_irq(struct vmctx *ctx, int irq);
169 int vm_ioapic_pulse_irq(struct vmctx *ctx, int irq);
170 int vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
171 int vm_readwrite_kernemu_device(struct vcpu *vcpu,
172 vm_paddr_t gpa, bool write, int size, uint64_t *value);
173 int vm_isa_assert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
174 int vm_isa_deassert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
175 int vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
176 int vm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq,
177 enum vm_intr_trigger trigger);
178 int vm_inject_nmi(struct vcpu *vcpu);
179 int vm_capability_name2type(const char *capname);
180 const char *vm_capability_type2name(int type);
181 int vm_get_capability(struct vcpu *vcpu, enum vm_cap_type cap,
183 int vm_set_capability(struct vcpu *vcpu, enum vm_cap_type cap,
185 int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
186 int vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
187 int vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
188 vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
189 int vm_unmap_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
190 vm_paddr_t gpa, size_t len);
191 int vm_setup_pptdev_msi(struct vmctx *ctx, int bus, int slot,
192 int func, uint64_t addr, uint64_t msg, int numvec);
193 int vm_setup_pptdev_msix(struct vmctx *ctx, int bus, int slot,
194 int func, int idx, uint64_t addr, uint64_t msg,
195 uint32_t vector_control);
196 int vm_disable_pptdev_msix(struct vmctx *ctx, int bus, int slot, int func);
198 int vm_get_intinfo(struct vcpu *vcpu, uint64_t *i1, uint64_t *i2);
199 int vm_set_intinfo(struct vcpu *vcpu, uint64_t exit_intinfo);
202 * Return a pointer to the statistics buffer. Note that this is not MT-safe.
204 uint64_t *vm_get_stats(struct vcpu *vcpu, struct timeval *ret_tv,
206 const char *vm_get_stat_desc(struct vmctx *ctx, int index);
208 int vm_get_x2apic_state(struct vcpu *vcpu, enum x2apic_state *s);
209 int vm_set_x2apic_state(struct vcpu *vcpu, enum x2apic_state s);
211 int vm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities);
214 * Translate the GLA range [gla,gla+len) into GPA segments in 'iov'.
215 * The 'iovcnt' should be big enough to accommodate all GPA segments.
217 * retval fault Interpretation
219 * 0 1 An exception was injected into the guest
222 int vm_copy_setup(struct vcpu *vcpu, struct vm_guest_paging *pg,
223 uint64_t gla, size_t len, int prot, struct iovec *iov, int iovcnt,
225 void vm_copyin(struct iovec *guest_iov, void *host_dst, size_t len);
226 void vm_copyout(const void *host_src, struct iovec *guest_iov, size_t len);
227 void vm_copy_teardown(struct iovec *iov, int iovcnt);
230 int vm_rtc_write(struct vmctx *ctx, int offset, uint8_t value);
231 int vm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval);
232 int vm_rtc_settime(struct vmctx *ctx, time_t secs);
233 int vm_rtc_gettime(struct vmctx *ctx, time_t *secs);
235 /* Reset vcpu register state */
236 int vcpu_reset(struct vcpu *vcpu);
238 int vm_active_cpus(struct vmctx *ctx, cpuset_t *cpus);
239 int vm_suspended_cpus(struct vmctx *ctx, cpuset_t *cpus);
240 int vm_debug_cpus(struct vmctx *ctx, cpuset_t *cpus);
241 int vm_activate_cpu(struct vcpu *vcpu);
242 int vm_suspend_all_cpus(struct vmctx *ctx);
243 int vm_suspend_cpu(struct vcpu *vcpu);
244 int vm_resume_all_cpus(struct vmctx *ctx);
245 int vm_resume_cpu(struct vcpu *vcpu);
246 int vm_restart_instruction(struct vcpu *vcpu);
249 int vm_set_topology(struct vmctx *ctx, uint16_t sockets, uint16_t cores,
250 uint16_t threads, uint16_t maxcpus);
251 int vm_get_topology(struct vmctx *ctx, uint16_t *sockets, uint16_t *cores,
252 uint16_t *threads, uint16_t *maxcpus);
255 * FreeBSD specific APIs
257 int vm_setup_freebsd_registers(struct vcpu *vcpu,
258 uint64_t rip, uint64_t cr3, uint64_t gdtbase,
260 int vm_setup_freebsd_registers_i386(struct vcpu *vcpu,
261 uint32_t eip, uint32_t gdtbase,
263 void vm_setup_freebsd_gdt(uint64_t *gdtr);
268 int vm_snapshot_req(struct vmctx *ctx, struct vm_snapshot_meta *meta);
269 int vm_restore_time(struct vmctx *ctx);
272 * Deprecated interfaces, do not use them in new code.
274 int vm_get_device_fd(struct vmctx *ctx);
275 const cap_ioctl_t *vm_get_ioctls(size_t *len);
279 #endif /* _VMMAPI_H_ */