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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * tools/testing/selftests/kvm/lib/kvm_util_internal.h
4  *
5  * Copyright (C) 2018, Google LLC.
6  */
7 
8 #ifndef SELFTEST_KVM_UTIL_INTERNAL_H
9 #define SELFTEST_KVM_UTIL_INTERNAL_H
10 
11 #include "sparsebit.h"
12 
13 #define KVM_DEV_PATH		"/dev/kvm"
14 
15 #ifndef BITS_PER_BYTE
16 #define BITS_PER_BYTE		8
17 #endif
18 
19 #ifndef BITS_PER_LONG
20 #define BITS_PER_LONG		(BITS_PER_BYTE * sizeof(long))
21 #endif
22 
23 #define DIV_ROUND_UP(n, d)	(((n) + (d) - 1) / (d))
24 #define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_LONG)
25 
26 struct userspace_mem_region {
27 	struct userspace_mem_region *next, *prev;
28 	struct kvm_userspace_memory_region region;
29 	struct sparsebit *unused_phy_pages;
30 	int fd;
31 	off_t offset;
32 	void *host_mem;
33 	void *mmap_start;
34 	size_t mmap_size;
35 };
36 
37 struct vcpu {
38 	struct vcpu *next, *prev;
39 	uint32_t id;
40 	int fd;
41 	struct kvm_run *state;
42 };
43 
44 struct kvm_vm {
45 	int mode;
46 	unsigned long type;
47 	int kvm_fd;
48 	int fd;
49 	unsigned int pgtable_levels;
50 	unsigned int page_size;
51 	unsigned int page_shift;
52 	unsigned int pa_bits;
53 	unsigned int va_bits;
54 	uint64_t max_gfn;
55 	struct vcpu *vcpu_head;
56 	struct userspace_mem_region *userspace_mem_region_head;
57 	struct sparsebit *vpages_valid;
58 	struct sparsebit *vpages_mapped;
59 	bool has_irqchip;
60 	bool pgd_created;
61 	vm_paddr_t pgd;
62 	vm_vaddr_t gdt;
63 	vm_vaddr_t tss;
64 };
65 
66 struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid);
67 void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
68 void regs_dump(FILE *stream, struct kvm_regs *regs, uint8_t indent);
69 void sregs_dump(FILE *stream, struct kvm_sregs *sregs, uint8_t indent);
70 
71 struct userspace_mem_region *
72 memslot2region(struct kvm_vm *vm, uint32_t memslot);
73 
74 #endif /* SELFTEST_KVM_UTIL_INTERNAL_H */
75