1 /* 2 * tools/testing/selftests/kvm/include/kvm_util.h 3 * 4 * Copyright (C) 2018, Google LLC. 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2. 7 * 8 */ 9 #ifndef SELFTEST_KVM_UTIL_H 10 #define SELFTEST_KVM_UTIL_H 1 11 12 #include "test_util.h" 13 14 #include "asm/kvm.h" 15 #include "linux/kvm.h" 16 #include <sys/ioctl.h> 17 18 #include "sparsebit.h" 19 20 /* 21 * Memslots can't cover the gfn starting at this gpa otherwise vCPUs can't be 22 * created. Only applies to VMs using EPT. 23 */ 24 #define KVM_DEFAULT_IDENTITY_MAP_ADDRESS 0xfffbc000ul 25 26 27 /* Callers of kvm_util only have an incomplete/opaque description of the 28 * structure kvm_util is using to maintain the state of a VM. 29 */ 30 struct kvm_vm; 31 32 typedef uint64_t vm_paddr_t; /* Virtual Machine (Guest) physical address */ 33 typedef uint64_t vm_vaddr_t; /* Virtual Machine (Guest) virtual address */ 34 35 /* Minimum allocated guest virtual and physical addresses */ 36 #define KVM_UTIL_MIN_VADDR 0x2000 37 38 #define DEFAULT_GUEST_PHY_PAGES 512 39 #define DEFAULT_GUEST_STACK_VADDR_MIN 0xab6000 40 #define DEFAULT_STACK_PGS 5 41 42 enum vm_guest_mode { 43 VM_MODE_FLAT48PG, 44 }; 45 46 enum vm_mem_backing_src_type { 47 VM_MEM_SRC_ANONYMOUS, 48 VM_MEM_SRC_ANONYMOUS_THP, 49 VM_MEM_SRC_ANONYMOUS_HUGETLB, 50 }; 51 52 int kvm_check_cap(long cap); 53 54 struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm); 55 void kvm_vm_free(struct kvm_vm *vmp); 56 57 int kvm_memcmp_hva_gva(void *hva, 58 struct kvm_vm *vm, const vm_vaddr_t gva, size_t len); 59 60 void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename, 61 uint32_t data_memslot, uint32_t pgd_memslot); 62 63 void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent); 64 void vcpu_dump(FILE *stream, struct kvm_vm *vm, 65 uint32_t vcpuid, uint8_t indent); 66 67 void vm_create_irqchip(struct kvm_vm *vm); 68 69 void vm_userspace_mem_region_add(struct kvm_vm *vm, 70 enum vm_mem_backing_src_type src_type, 71 uint64_t guest_paddr, uint32_t slot, uint64_t npages, 72 uint32_t flags); 73 74 void vcpu_ioctl(struct kvm_vm *vm, 75 uint32_t vcpuid, unsigned long ioctl, void *arg); 76 void vm_ioctl(struct kvm_vm *vm, unsigned long ioctl, void *arg); 77 void vm_mem_region_set_flags(struct kvm_vm *vm, uint32_t slot, uint32_t flags); 78 void vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid); 79 vm_vaddr_t vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min, 80 uint32_t data_memslot, uint32_t pgd_memslot); 81 void *addr_gpa2hva(struct kvm_vm *vm, vm_paddr_t gpa); 82 void *addr_gva2hva(struct kvm_vm *vm, vm_vaddr_t gva); 83 vm_paddr_t addr_hva2gpa(struct kvm_vm *vm, void *hva); 84 vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva); 85 86 struct kvm_run *vcpu_state(struct kvm_vm *vm, uint32_t vcpuid); 87 void vcpu_run(struct kvm_vm *vm, uint32_t vcpuid); 88 int _vcpu_run(struct kvm_vm *vm, uint32_t vcpuid); 89 void vcpu_set_mp_state(struct kvm_vm *vm, uint32_t vcpuid, 90 struct kvm_mp_state *mp_state); 91 void vcpu_regs_get(struct kvm_vm *vm, 92 uint32_t vcpuid, struct kvm_regs *regs); 93 void vcpu_regs_set(struct kvm_vm *vm, 94 uint32_t vcpuid, struct kvm_regs *regs); 95 void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...); 96 void vcpu_sregs_get(struct kvm_vm *vm, 97 uint32_t vcpuid, struct kvm_sregs *sregs); 98 void vcpu_sregs_set(struct kvm_vm *vm, 99 uint32_t vcpuid, struct kvm_sregs *sregs); 100 int _vcpu_sregs_set(struct kvm_vm *vm, 101 uint32_t vcpuid, struct kvm_sregs *sregs); 102 void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid, 103 struct kvm_vcpu_events *events); 104 void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid, 105 struct kvm_vcpu_events *events); 106 107 const char *exit_reason_str(unsigned int exit_reason); 108 109 void virt_pgd_alloc(struct kvm_vm *vm, uint32_t pgd_memslot); 110 void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, 111 uint32_t pgd_memslot); 112 vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, 113 vm_paddr_t paddr_min, uint32_t memslot); 114 115 struct kvm_cpuid2 *kvm_get_supported_cpuid(void); 116 void vcpu_set_cpuid( 117 struct kvm_vm *vm, uint32_t vcpuid, struct kvm_cpuid2 *cpuid); 118 119 struct kvm_cpuid_entry2 * 120 kvm_get_supported_cpuid_index(uint32_t function, uint32_t index); 121 122 static inline struct kvm_cpuid_entry2 * 123 kvm_get_supported_cpuid_entry(uint32_t function) 124 { 125 return kvm_get_supported_cpuid_index(function, 0); 126 } 127 128 struct kvm_vm *vm_create_default(uint32_t vcpuid, void *guest_code); 129 void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code); 130 131 typedef void (*vmx_guest_code_t)(vm_vaddr_t vmxon_vaddr, 132 vm_paddr_t vmxon_paddr, 133 vm_vaddr_t vmcs_vaddr, 134 vm_paddr_t vmcs_paddr); 135 136 struct kvm_userspace_memory_region * 137 kvm_userspace_memory_region_find(struct kvm_vm *vm, uint64_t start, 138 uint64_t end); 139 140 struct kvm_dirty_log * 141 allocate_kvm_dirty_log(struct kvm_userspace_memory_region *region); 142 143 int vm_create_device(struct kvm_vm *vm, struct kvm_create_device *cd); 144 145 #endif /* SELFTEST_KVM_UTIL_H */ 146