1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* This header is for functions & variables that will ONLY be
* used inside libkvm.
*
* derived from libkvm.c
*
* Copyright (C) 2006 Qumranet, Inc.
*
* Authors:
* Avi Kivity <avi@qumranet.com>
* Yaniv Kamay <yaniv@qumranet.com>
*
* This work is licensed under the GNU LGPL license, version 2.
*/
#ifndef KVM_COMMON_H
#define KVM_COMMON_H
/* FIXME: share this number with kvm */
/* FIXME: or dynamically alloc/realloc regions */
#ifdef __s390__
#define KVM_MAX_NUM_MEM_REGIONS 1u
#define MAX_VCPUS 64
#define LIBKVM_S390_ORIGIN (0UL)
#elif __ia64__
#define KVM_MAX_NUM_MEM_REGIONS 32u
#define MAX_VCPUS 256
#else
#define KVM_MAX_NUM_MEM_REGIONS 32u
#define MAX_VCPUS 16
#endif
/* kvm abi verison variable */
extern int kvm_abi;
/**
* \brief The KVM context
*
* The verbose KVM context
*/
struct kvm_context {
/// Filedescriptor to /dev/kvm
int fd;
int vm_fd;
int vcpu_fd[MAX_VCPUS];
struct kvm_run *run[MAX_VCPUS];
/// Callbacks that KVM uses to emulate various unvirtualizable functionality
struct kvm_callbacks *callbacks;
void *opaque;
/// is dirty pages logging enabled for all regions or not
int dirty_pages_log_all;
/// do not create in-kernel irqchip if set
int no_irqchip_creation;
/// in-kernel irqchip status
int irqchip_in_kernel;
/// do not create in-kernel pit if set
int no_pit_creation;
/// in-kernel pit status
int pit_in_kernel;
/// in-kernel coalesced mmio
int coalesced_mmio;
};
void init_slots(void);
int get_free_slot(kvm_context_t kvm);
void register_slot(int slot, unsigned long phys_addr, unsigned long len,
unsigned long userspace_addr, unsigned flags);
void free_slot(int slot);
int get_slot(unsigned long phys_addr);
int kvm_alloc_kernel_memory(kvm_context_t kvm, unsigned long memory,
void **vm_mem);
int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory,
void **vm_mem);
int kvm_arch_create(kvm_context_t kvm, unsigned long phys_mem_bytes,
void **vm_mem);
int kvm_arch_run(struct kvm_run *run, kvm_context_t kvm, int vcpu);
void kvm_show_code(kvm_context_t kvm, int vcpu);
int handle_halt(kvm_context_t kvm, int vcpu);
int handle_shutdown(kvm_context_t kvm, int vcpu);
void post_kvm_run(kvm_context_t kvm, int vcpu);
int pre_kvm_run(kvm_context_t kvm, int vcpu);
int handle_io_window(kvm_context_t kvm);
int handle_debug(kvm_context_t kvm, int vcpu);
int try_push_interrupts(kvm_context_t kvm);
#endif
|
