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Commit 23d191a8 authored by Daniel Borkmann's avatar Daniel Borkmann Committed by Alexei Starovoitov
Browse files

bpf: add various jit test cases 



Add few test cases that check the rnu-time results under JIT.

Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 08691752

tools/testing/selftests/bpf/test_verifier.c

+89 −0
Original line number Diff line number Diff line
@@ -11140,6 +11140,95 @@ static struct bpf_test tests[] = { 
		.result = REJECT,

		.prog_type = BPF_PROG_TYPE_TRACEPOINT,

	},

	{

		"jit: lsh, rsh, arsh by 1",

		.insns = {

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_MOV64_IMM(BPF_REG_1, 0xff),

			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 1),

			BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 1),

			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),

			BPF_EXIT_INSN(),

			BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 1),

			BPF_ALU32_IMM(BPF_RSH, BPF_REG_1, 1),

			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0xff, 1),

			BPF_EXIT_INSN(),

			BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 1),

			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x7f, 1),

			BPF_EXIT_INSN(),

			BPF_MOV64_IMM(BPF_REG_0, 2),

			BPF_EXIT_INSN(),

		},

		.result = ACCEPT,

		.retval = 2,

	},

	{

		"jit: mov32 for ldimm64, 1",

		.insns = {

			BPF_MOV64_IMM(BPF_REG_0, 2),

			BPF_LD_IMM64(BPF_REG_1, 0xfeffffffffffffffULL),

			BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32),

			BPF_LD_IMM64(BPF_REG_2, 0xfeffffffULL),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

		},

		.result = ACCEPT,

		.retval = 2,

	},

	{

		"jit: mov32 for ldimm64, 2",

		.insns = {

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_LD_IMM64(BPF_REG_1, 0x1ffffffffULL),

			BPF_LD_IMM64(BPF_REG_2, 0xffffffffULL),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),

			BPF_MOV64_IMM(BPF_REG_0, 2),

			BPF_EXIT_INSN(),

		},

		.result = ACCEPT,

		.retval = 2,

	},

	{

		"jit: various mul tests",

		.insns = {

			BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),

			BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),

			BPF_LD_IMM64(BPF_REG_1, 0xefefefULL),

			BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

			BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),

			BPF_ALU64_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

			BPF_MOV32_REG(BPF_REG_2, BPF_REG_2),

			BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),

			BPF_ALU32_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

			BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),

			BPF_ALU32_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

			BPF_LD_IMM64(BPF_REG_0, 0x952a7bbcULL),

			BPF_LD_IMM64(BPF_REG_1, 0xfefefeULL),

			BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),

			BPF_ALU32_REG(BPF_MUL, BPF_REG_2, BPF_REG_1),

			BPF_JMP_REG(BPF_JEQ, BPF_REG_2, BPF_REG_0, 2),

			BPF_MOV64_IMM(BPF_REG_0, 1),

			BPF_EXIT_INSN(),

			BPF_MOV64_IMM(BPF_REG_0, 2),

			BPF_EXIT_INSN(),

		},

		.result = ACCEPT,

		.retval = 2,

	},



};



static int probe_filter_length(const struct bpf_insn *fp)