xref: /freebsd/lib/libvmmapi/vmmapi.h (revision 1a61beb0549e05b33df31380e427d90f6e46ff7e)
1 /*-
2  * Copyright (c) 2011 NetApp, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _VMMAPI_H_
30 #define	_VMMAPI_H_
31 
32 struct vmctx;
33 enum x2apic_state;
34 
35 /*
36  * Different styles of mapping the memory assigned to a VM into the address
37  * space of the controlling process.
38  */
39 enum vm_mmap_style {
40 	VM_MMAP_NONE,		/* no mapping */
41 	VM_MMAP_ALL,		/* fully and statically mapped */
42 	VM_MMAP_SPARSE,		/* mappings created on-demand */
43 };
44 
45 int	vm_create(const char *name);
46 struct vmctx *vm_open(const char *name);
47 void	vm_destroy(struct vmctx *ctx);
48 int	vm_parse_memsize(const char *optarg, size_t *memsize);
49 int	vm_get_memory_seg(struct vmctx *ctx, vm_paddr_t gpa, size_t *ret_len,
50 			  int *wired);
51 int	vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s);
52 void	*vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len);
53 int	vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num);
54 uint32_t vm_get_lowmem_limit(struct vmctx *ctx);
55 void	vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit);
56 int	vm_set_desc(struct vmctx *ctx, int vcpu, int reg,
57 		    uint64_t base, uint32_t limit, uint32_t access);
58 int	vm_get_desc(struct vmctx *ctx, int vcpu, int reg,
59 		    uint64_t *base, uint32_t *limit, uint32_t *access);
60 int	vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val);
61 int	vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
62 int	vm_run(struct vmctx *ctx, int vcpu, uint64_t rip,
63 	       struct vm_exit *ret_vmexit);
64 int	vm_apicid2vcpu(struct vmctx *ctx, int apicid);
65 int	vm_inject_event(struct vmctx *ctx, int vcpu, enum vm_event_type type,
66 			int vector);
67 int	vm_inject_event2(struct vmctx *ctx, int vcpu, enum vm_event_type type,
68 			 int vector, int error_code);
69 int	vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector);
70 int	vm_lapic_local_irq(struct vmctx *ctx, int vcpu, int vector);
71 int	vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
72 int	vm_ioapic_assert_irq(struct vmctx *ctx, int irq);
73 int	vm_ioapic_deassert_irq(struct vmctx *ctx, int irq);
74 int	vm_ioapic_pulse_irq(struct vmctx *ctx, int irq);
75 int	vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
76 int	vm_inject_nmi(struct vmctx *ctx, int vcpu);
77 int	vm_capability_name2type(const char *capname);
78 const char *vm_capability_type2name(int type);
79 int	vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
80 			  int *retval);
81 int	vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
82 			  int val);
83 int	vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
84 int	vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
85 int	vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
86 			   vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
87 int	vm_setup_pptdev_msi(struct vmctx *ctx, int vcpu, int bus, int slot,
88 	    int func, uint64_t addr, uint64_t msg, int numvec);
89 int	vm_setup_pptdev_msix(struct vmctx *ctx, int vcpu, int bus, int slot,
90 	    int func, int idx, uint64_t addr, uint64_t msg,
91 	    uint32_t vector_control);
92 
93 /*
94  * Return a pointer to the statistics buffer. Note that this is not MT-safe.
95  */
96 uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
97 		       int *ret_entries);
98 const char *vm_get_stat_desc(struct vmctx *ctx, int index);
99 
100 int	vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
101 int	vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
102 
103 int	vm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities);
104 
105 /* Reset vcpu register state */
106 int	vcpu_reset(struct vmctx *ctx, int vcpu);
107 
108 /*
109  * FreeBSD specific APIs
110  */
111 int	vm_setup_freebsd_registers(struct vmctx *ctx, int vcpu,
112 				uint64_t rip, uint64_t cr3, uint64_t gdtbase,
113 				uint64_t rsp);
114 int	vm_setup_freebsd_registers_i386(struct vmctx *vmctx, int vcpu,
115 					uint32_t eip, uint32_t gdtbase,
116 					uint32_t esp);
117 void	vm_setup_freebsd_gdt(uint64_t *gdtr);
118 #endif	/* _VMMAPI_H_ */
119