2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 NetApp, Inc.
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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
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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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19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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34 #include <sys/param.h>
35 #include <sys/cpuset.h>
38 * API version for out-of-tree consumers like grub-bhyve for making compile
41 #define VMMAPI_VERSION 0103 /* 2 digit major followed by 2 digit minor */
48 * Different styles of mapping the memory assigned to a VM into the address
49 * space of the controlling process.
52 VM_MMAP_NONE, /* no mapping */
53 VM_MMAP_ALL, /* fully and statically mapped */
54 VM_MMAP_SPARSE, /* mappings created on-demand */
58 * 'flags' value passed to 'vm_set_memflags()'.
60 #define VM_MEM_F_INCORE 0x01 /* include guest memory in core file */
61 #define VM_MEM_F_WIRED 0x02 /* guest memory is wired */
64 * Identifiers for memory segments:
65 * - vm_setup_memory() uses VM_SYSMEM for the system memory segment.
66 * - the remaining identifiers can be used to create devmem segments.
75 * Get the length and name of the memory segment identified by 'segid'.
76 * Note that system memory segments are identified with a nul name.
78 * Returns 0 on success and non-zero otherwise.
80 int vm_get_memseg(struct vmctx *ctx, int ident, size_t *lenp, char *name,
84 * Iterate over the guest address space. This function finds an address range
85 * that starts at an address >= *gpa.
87 * Returns 0 if the next address range was found and non-zero otherwise.
89 int vm_mmap_getnext(struct vmctx *ctx, vm_paddr_t *gpa, int *segid,
90 vm_ooffset_t *segoff, size_t *len, int *prot, int *flags);
92 * Create a device memory segment identified by 'segid'.
94 * Returns a pointer to the memory segment on success and MAP_FAILED otherwise.
96 void *vm_create_devmem(struct vmctx *ctx, int segid, const char *name,
100 * Map the memory segment identified by 'segid' into the guest address space
101 * at [gpa,gpa+len) with protection 'prot'.
103 int vm_mmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, int segid,
104 vm_ooffset_t segoff, size_t len, int prot);
106 int vm_create(const char *name);
107 int vm_get_device_fd(struct vmctx *ctx);
108 struct vmctx *vm_open(const char *name);
109 void vm_destroy(struct vmctx *ctx);
110 int vm_parse_memsize(const char *optarg, size_t *memsize);
111 int vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s);
112 void *vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len);
113 int vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num);
114 int vm_gla2gpa(struct vmctx *, int vcpuid, struct vm_guest_paging *paging,
115 uint64_t gla, int prot, uint64_t *gpa, int *fault);
116 uint32_t vm_get_lowmem_limit(struct vmctx *ctx);
117 void vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit);
118 void vm_set_memflags(struct vmctx *ctx, int flags);
119 int vm_get_memflags(struct vmctx *ctx);
120 size_t vm_get_lowmem_size(struct vmctx *ctx);
121 size_t vm_get_highmem_size(struct vmctx *ctx);
122 int vm_set_desc(struct vmctx *ctx, int vcpu, int reg,
123 uint64_t base, uint32_t limit, uint32_t access);
124 int vm_get_desc(struct vmctx *ctx, int vcpu, int reg,
125 uint64_t *base, uint32_t *limit, uint32_t *access);
126 int vm_get_seg_desc(struct vmctx *ctx, int vcpu, int reg,
127 struct seg_desc *seg_desc);
128 int vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val);
129 int vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
130 int vm_run(struct vmctx *ctx, int vcpu, struct vm_exit *ret_vmexit);
131 int vm_suspend(struct vmctx *ctx, enum vm_suspend_how how);
132 int vm_reinit(struct vmctx *ctx);
133 int vm_apicid2vcpu(struct vmctx *ctx, int apicid);
134 int vm_inject_exception(struct vmctx *ctx, int vcpu, int vector,
135 int errcode_valid, uint32_t errcode, int restart_instruction);
136 int vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector);
137 int vm_lapic_local_irq(struct vmctx *ctx, int vcpu, int vector);
138 int vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
139 int vm_ioapic_assert_irq(struct vmctx *ctx, int irq);
140 int vm_ioapic_deassert_irq(struct vmctx *ctx, int irq);
141 int vm_ioapic_pulse_irq(struct vmctx *ctx, int irq);
142 int vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
143 int vm_isa_assert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
144 int vm_isa_deassert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
145 int vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
146 int vm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq,
147 enum vm_intr_trigger trigger);
148 int vm_inject_nmi(struct vmctx *ctx, int vcpu);
149 int vm_capability_name2type(const char *capname);
150 const char *vm_capability_type2name(int type);
151 int vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
153 int vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
155 int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
156 int vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
157 int vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
158 vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
159 int vm_setup_pptdev_msi(struct vmctx *ctx, int vcpu, int bus, int slot,
160 int func, uint64_t addr, uint64_t msg, int numvec);
161 int vm_setup_pptdev_msix(struct vmctx *ctx, int vcpu, int bus, int slot,
162 int func, int idx, uint64_t addr, uint64_t msg,
163 uint32_t vector_control);
165 int vm_get_intinfo(struct vmctx *ctx, int vcpu, uint64_t *i1, uint64_t *i2);
166 int vm_set_intinfo(struct vmctx *ctx, int vcpu, uint64_t exit_intinfo);
168 const cap_ioctl_t *vm_get_ioctls(size_t *len);
171 * Return a pointer to the statistics buffer. Note that this is not MT-safe.
173 uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
175 const char *vm_get_stat_desc(struct vmctx *ctx, int index);
177 int vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
178 int vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
180 int vm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities);
183 * Translate the GLA range [gla,gla+len) into GPA segments in 'iov'.
184 * The 'iovcnt' should be big enough to accommodate all GPA segments.
186 * retval fault Interpretation
188 * 0 1 An exception was injected into the guest
191 int vm_copy_setup(struct vmctx *ctx, int vcpu, struct vm_guest_paging *pg,
192 uint64_t gla, size_t len, int prot, struct iovec *iov, int iovcnt,
194 void vm_copyin(struct vmctx *ctx, int vcpu, struct iovec *guest_iov,
195 void *host_dst, size_t len);
196 void vm_copyout(struct vmctx *ctx, int vcpu, const void *host_src,
197 struct iovec *guest_iov, size_t len);
198 void vm_copy_teardown(struct vmctx *ctx, int vcpu, struct iovec *iov,
202 int vm_rtc_write(struct vmctx *ctx, int offset, uint8_t value);
203 int vm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval);
204 int vm_rtc_settime(struct vmctx *ctx, time_t secs);
205 int vm_rtc_gettime(struct vmctx *ctx, time_t *secs);
207 /* Reset vcpu register state */
208 int vcpu_reset(struct vmctx *ctx, int vcpu);
210 int vm_active_cpus(struct vmctx *ctx, cpuset_t *cpus);
211 int vm_suspended_cpus(struct vmctx *ctx, cpuset_t *cpus);
212 int vm_activate_cpu(struct vmctx *ctx, int vcpu);
215 * FreeBSD specific APIs
217 int vm_setup_freebsd_registers(struct vmctx *ctx, int vcpu,
218 uint64_t rip, uint64_t cr3, uint64_t gdtbase,
220 int vm_setup_freebsd_registers_i386(struct vmctx *vmctx, int vcpu,
221 uint32_t eip, uint32_t gdtbase,
223 void vm_setup_freebsd_gdt(uint64_t *gdtr);
224 #endif /* _VMMAPI_H_ */