cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ucall_common.h (1829B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * tools/testing/selftests/kvm/include/kvm_util.h
      4 *
      5 * Copyright (C) 2018, Google LLC.
      6 */
      7#ifndef SELFTEST_KVM_UCALL_COMMON_H
      8#define SELFTEST_KVM_UCALL_COMMON_H
      9
     10/* Common ucalls */
     11enum {
     12	UCALL_NONE,
     13	UCALL_SYNC,
     14	UCALL_ABORT,
     15	UCALL_DONE,
     16	UCALL_UNHANDLED,
     17};
     18
     19#define UCALL_MAX_ARGS 6
     20
     21struct ucall {
     22	uint64_t cmd;
     23	uint64_t args[UCALL_MAX_ARGS];
     24};
     25
     26void ucall_init(struct kvm_vm *vm, void *arg);
     27void ucall_uninit(struct kvm_vm *vm);
     28void ucall(uint64_t cmd, int nargs, ...);
     29uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc);
     30
     31#define GUEST_SYNC_ARGS(stage, arg1, arg2, arg3, arg4)	\
     32				ucall(UCALL_SYNC, 6, "hello", stage, arg1, arg2, arg3, arg4)
     33#define GUEST_SYNC(stage)	ucall(UCALL_SYNC, 2, "hello", stage)
     34#define GUEST_DONE()		ucall(UCALL_DONE, 0)
     35#define __GUEST_ASSERT(_condition, _condstr, _nargs, _args...) do {    \
     36	if (!(_condition))                                              \
     37		ucall(UCALL_ABORT, 2 + _nargs,                          \
     38			"Failed guest assert: "                         \
     39			_condstr, __LINE__, _args);                     \
     40} while (0)
     41
     42#define GUEST_ASSERT(_condition) \
     43	__GUEST_ASSERT(_condition, #_condition, 0, 0)
     44
     45#define GUEST_ASSERT_1(_condition, arg1) \
     46	__GUEST_ASSERT(_condition, #_condition, 1, (arg1))
     47
     48#define GUEST_ASSERT_2(_condition, arg1, arg2) \
     49	__GUEST_ASSERT(_condition, #_condition, 2, (arg1), (arg2))
     50
     51#define GUEST_ASSERT_3(_condition, arg1, arg2, arg3) \
     52	__GUEST_ASSERT(_condition, #_condition, 3, (arg1), (arg2), (arg3))
     53
     54#define GUEST_ASSERT_4(_condition, arg1, arg2, arg3, arg4) \
     55	__GUEST_ASSERT(_condition, #_condition, 4, (arg1), (arg2), (arg3), (arg4))
     56
     57#define GUEST_ASSERT_EQ(a, b) __GUEST_ASSERT((a) == (b), #a " == " #b, 2, a, b)
     58
     59#endif /* SELFTEST_KVM_UCALL_COMMON_H */