1{
 2	"xadd/w check unaligned stack",
 3	.insns = {
 4	BPF_MOV64_IMM(BPF_REG_0, 1),
 5	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
 6	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_10, BPF_REG_0, -7),
 7	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
 8	BPF_EXIT_INSN(),
 9	},
10	.result = REJECT,
11	.errstr = "misaligned stack access off",
12	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
13},
14{
15	"xadd/w check unaligned map",
16	.insns = {
17	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
18	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
19	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
20	BPF_LD_MAP_FD(BPF_REG_1, 0),
21	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
22	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
23	BPF_EXIT_INSN(),
24	BPF_MOV64_IMM(BPF_REG_1, 1),
25	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_0, BPF_REG_1, 3),
26	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3),
27	BPF_EXIT_INSN(),
28	},
29	.fixup_map_hash_8b = { 3 },
30	.result = REJECT,
31	.errstr = "misaligned value access off",
32	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
33},
34{
35	"xadd/w check unaligned pkt",
36	.insns = {
37	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
38	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
39		    offsetof(struct xdp_md, data_end)),
40	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
41	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
42	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 2),
43	BPF_MOV64_IMM(BPF_REG_0, 99),
44	BPF_JMP_IMM(BPF_JA, 0, 0, 6),
45	BPF_MOV64_IMM(BPF_REG_0, 1),
46	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
47	BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0),
48	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_2, BPF_REG_0, 1),
49	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_2, BPF_REG_0, 2),
50	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1),
51	BPF_EXIT_INSN(),
52	},
53	.result = REJECT,
54	.errstr = "BPF_ATOMIC stores into R2 pkt is not allowed",
55	.prog_type = BPF_PROG_TYPE_XDP,
56	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
57},
58{
59	"xadd/w check whether src/dst got mangled, 1",
60	.insns = {
61	BPF_MOV64_IMM(BPF_REG_0, 1),
62	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
63	BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
64	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
65	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_0, -8),
66	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_0, -8),
67	BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
68	BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
69	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
70	BPF_EXIT_INSN(),
71	BPF_MOV64_IMM(BPF_REG_0, 42),
72	BPF_EXIT_INSN(),
73	},
74	.result = ACCEPT,
75	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
76	.retval = 3,
77},
78{
79	"xadd/w check whether src/dst got mangled, 2",
80	.insns = {
81	BPF_MOV64_IMM(BPF_REG_0, 1),
82	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
83	BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
84	BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
85	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_10, BPF_REG_0, -8),
86	BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_10, BPF_REG_0, -8),
87	BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
88	BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
89	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
90	BPF_EXIT_INSN(),
91	BPF_MOV64_IMM(BPF_REG_0, 42),
92	BPF_EXIT_INSN(),
93	},
94	.result = ACCEPT,
95	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
96	.retval = 3,
97},