210 lines
6.7 KiB
C
210 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* tools/testing/selftests/kvm/include/kvm_util.h
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*
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* Copyright (C) 2018, Google LLC.
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*/
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#ifndef SELFTEST_KVM_UTIL_H
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#define SELFTEST_KVM_UTIL_H
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#include "test_util.h"
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#include "asm/kvm.h"
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#include "linux/kvm.h"
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#include <sys/ioctl.h>
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#include "sparsebit.h"
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/* Callers of kvm_util only have an incomplete/opaque description of the
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* structure kvm_util is using to maintain the state of a VM.
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*/
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struct kvm_vm;
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typedef uint64_t vm_paddr_t; /* Virtual Machine (Guest) physical address */
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typedef uint64_t vm_vaddr_t; /* Virtual Machine (Guest) virtual address */
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#ifndef NDEBUG
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#define DEBUG(...) printf(__VA_ARGS__);
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#else
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#define DEBUG(...)
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#endif
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/* Minimum allocated guest virtual and physical addresses */
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#define KVM_UTIL_MIN_VADDR 0x2000
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#define DEFAULT_GUEST_PHY_PAGES 512
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#define DEFAULT_GUEST_STACK_VADDR_MIN 0xab6000
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#define DEFAULT_STACK_PGS 5
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enum vm_guest_mode {
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VM_MODE_P52V48_4K,
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VM_MODE_P52V48_64K,
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VM_MODE_P48V48_4K,
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VM_MODE_P48V48_64K,
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VM_MODE_P40V48_4K,
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VM_MODE_P40V48_64K,
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VM_MODE_PXXV48_4K, /* For 48bits VA but ANY bits PA */
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NUM_VM_MODES,
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};
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#if defined(__aarch64__)
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#define VM_MODE_DEFAULT VM_MODE_P40V48_4K
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#elif defined(__x86_64__)
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#define VM_MODE_DEFAULT VM_MODE_PXXV48_4K
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#else
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#define VM_MODE_DEFAULT VM_MODE_P52V48_4K
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#endif
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#define vm_guest_mode_string(m) vm_guest_mode_string[m]
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extern const char * const vm_guest_mode_string[];
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enum vm_mem_backing_src_type {
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VM_MEM_SRC_ANONYMOUS,
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VM_MEM_SRC_ANONYMOUS_THP,
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VM_MEM_SRC_ANONYMOUS_HUGETLB,
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};
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int kvm_check_cap(long cap);
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int vm_enable_cap(struct kvm_vm *vm, struct kvm_enable_cap *cap);
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struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm);
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struct kvm_vm *_vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm);
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void kvm_vm_free(struct kvm_vm *vmp);
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void kvm_vm_restart(struct kvm_vm *vmp, int perm);
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void kvm_vm_release(struct kvm_vm *vmp);
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void kvm_vm_get_dirty_log(struct kvm_vm *vm, int slot, void *log);
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void kvm_vm_clear_dirty_log(struct kvm_vm *vm, int slot, void *log,
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uint64_t first_page, uint32_t num_pages);
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int kvm_memcmp_hva_gva(void *hva, struct kvm_vm *vm, const vm_vaddr_t gva,
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size_t len);
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void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename,
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uint32_t data_memslot, uint32_t pgd_memslot);
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void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
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void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid,
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uint8_t indent);
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void vm_create_irqchip(struct kvm_vm *vm);
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void vm_userspace_mem_region_add(struct kvm_vm *vm,
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enum vm_mem_backing_src_type src_type,
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uint64_t guest_paddr, uint32_t slot, uint64_t npages,
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uint32_t flags);
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void vcpu_ioctl(struct kvm_vm *vm, uint32_t vcpuid, unsigned long ioctl,
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void *arg);
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int _vcpu_ioctl(struct kvm_vm *vm, uint32_t vcpuid, unsigned long ioctl,
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void *arg);
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void vm_ioctl(struct kvm_vm *vm, unsigned long ioctl, void *arg);
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void vm_mem_region_set_flags(struct kvm_vm *vm, uint32_t slot, uint32_t flags);
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void vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid);
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vm_vaddr_t vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min,
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uint32_t data_memslot, uint32_t pgd_memslot);
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void virt_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
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size_t size, uint32_t pgd_memslot);
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void *addr_gpa2hva(struct kvm_vm *vm, vm_paddr_t gpa);
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void *addr_gva2hva(struct kvm_vm *vm, vm_vaddr_t gva);
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vm_paddr_t addr_hva2gpa(struct kvm_vm *vm, void *hva);
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vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva);
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struct kvm_run *vcpu_state(struct kvm_vm *vm, uint32_t vcpuid);
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void vcpu_run(struct kvm_vm *vm, uint32_t vcpuid);
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int _vcpu_run(struct kvm_vm *vm, uint32_t vcpuid);
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void vcpu_run_complete_io(struct kvm_vm *vm, uint32_t vcpuid);
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void vcpu_set_mp_state(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_mp_state *mp_state);
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void vcpu_regs_get(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_regs *regs);
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void vcpu_regs_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_regs *regs);
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void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...);
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void vcpu_sregs_get(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_sregs *sregs);
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void vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_sregs *sregs);
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int _vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_sregs *sregs);
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#ifdef __KVM_HAVE_VCPU_EVENTS
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void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_vcpu_events *events);
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void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_vcpu_events *events);
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#endif
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#ifdef __x86_64__
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void vcpu_nested_state_get(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_nested_state *state);
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int vcpu_nested_state_set(struct kvm_vm *vm, uint32_t vcpuid,
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struct kvm_nested_state *state, bool ignore_error);
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#endif
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const char *exit_reason_str(unsigned int exit_reason);
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void virt_pgd_alloc(struct kvm_vm *vm, uint32_t pgd_memslot);
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void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
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uint32_t pgd_memslot);
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vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
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uint32_t memslot);
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vm_paddr_t vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
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vm_paddr_t paddr_min, uint32_t memslot);
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struct kvm_vm *vm_create_default(uint32_t vcpuid, uint64_t extra_mem_size,
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void *guest_code);
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void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code);
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bool vm_is_unrestricted_guest(struct kvm_vm *vm);
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unsigned int vm_get_page_size(struct kvm_vm *vm);
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unsigned int vm_get_page_shift(struct kvm_vm *vm);
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unsigned int vm_get_max_gfn(struct kvm_vm *vm);
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struct kvm_userspace_memory_region *
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kvm_userspace_memory_region_find(struct kvm_vm *vm, uint64_t start,
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uint64_t end);
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struct kvm_dirty_log *
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allocate_kvm_dirty_log(struct kvm_userspace_memory_region *region);
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int vm_create_device(struct kvm_vm *vm, struct kvm_create_device *cd);
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#define sync_global_to_guest(vm, g) ({ \
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typeof(g) *_p = addr_gva2hva(vm, (vm_vaddr_t)&(g)); \
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memcpy(_p, &(g), sizeof(g)); \
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})
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#define sync_global_from_guest(vm, g) ({ \
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typeof(g) *_p = addr_gva2hva(vm, (vm_vaddr_t)&(g)); \
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memcpy(&(g), _p, sizeof(g)); \
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})
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/* Common ucalls */
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enum {
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UCALL_NONE,
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UCALL_SYNC,
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UCALL_ABORT,
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UCALL_DONE,
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};
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#define UCALL_MAX_ARGS 6
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struct ucall {
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uint64_t cmd;
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uint64_t args[UCALL_MAX_ARGS];
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};
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void ucall_init(struct kvm_vm *vm, void *arg);
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void ucall_uninit(struct kvm_vm *vm);
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void ucall(uint64_t cmd, int nargs, ...);
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uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc);
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#define GUEST_SYNC(stage) ucall(UCALL_SYNC, 2, "hello", stage)
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#define GUEST_DONE() ucall(UCALL_DONE, 0)
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#define GUEST_ASSERT(_condition) do { \
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if (!(_condition)) \
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ucall(UCALL_ABORT, 2, \
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"Failed guest assert: " \
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#_condition, __LINE__); \
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} while (0)
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#endif /* SELFTEST_KVM_UTIL_H */
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