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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tools/testing/selftests/kvm/include/kvm_util.h
*
* Copyright (C) 2018, Google LLC.
*/
#ifndef SELFTEST_KVM_UCALL_COMMON_H
#define SELFTEST_KVM_UCALL_COMMON_H
/* Common ucalls */
enum {
UCALL_NONE,
UCALL_SYNC,
UCALL_ABORT,
UCALL_DONE,
UCALL_UNHANDLED,
};
#define UCALL_MAX_ARGS 6
struct ucall {
uint64_t cmd;
uint64_t args[UCALL_MAX_ARGS];
};
void ucall_init(struct kvm_vm *vm, void *arg);
void ucall_uninit(struct kvm_vm *vm);
void ucall(uint64_t cmd, int nargs, ...);
uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc);
#define GUEST_SYNC_ARGS(stage, arg1, arg2, arg3, arg4) \
ucall(UCALL_SYNC, 6, "hello", stage, arg1, arg2, arg3, arg4)
#define GUEST_SYNC(stage) ucall(UCALL_SYNC, 2, "hello", stage)
#define GUEST_DONE() ucall(UCALL_DONE, 0)
#define __GUEST_ASSERT(_condition, _condstr, _nargs, _args...) do { \
if (!(_condition)) \
ucall(UCALL_ABORT, 2 + _nargs, \
"Failed guest assert: " \
_condstr, __LINE__, _args); \
} while (0)
#define GUEST_ASSERT(_condition) \
__GUEST_ASSERT(_condition, #_condition, 0, 0)
#define GUEST_ASSERT_1(_condition, arg1) \
__GUEST_ASSERT(_condition, #_condition, 1, (arg1))
#define GUEST_ASSERT_2(_condition, arg1, arg2) \
__GUEST_ASSERT(_condition, #_condition, 2, (arg1), (arg2))
#define GUEST_ASSERT_3(_condition, arg1, arg2, arg3) \
__GUEST_ASSERT(_condition, #_condition, 3, (arg1), (arg2), (arg3))
#define GUEST_ASSERT_4(_condition, arg1, arg2, arg3, arg4) \
__GUEST_ASSERT(_condition, #_condition, 4, (arg1), (arg2), (arg3), (arg4))
#define GUEST_ASSERT_EQ(a, b) __GUEST_ASSERT((a) == (b), #a " == " #b, 2, a, b)
#endif /* SELFTEST_KVM_UCALL_COMMON_H */
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