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linux/tools/testing/selftests/bpf/progs/verifier_ldsx.c
Hengqi Chen 1d375d6546 selftests/bpf: Enable cpu v4 tests for LoongArch 
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  #316/1   verifier_bswap/BSWAP, 16:OK
  #316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  #316/3   verifier_bswap/BSWAP, 32:OK
  #316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  #316/5   verifier_bswap/BSWAP, 64:OK
  #316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  #316     verifier_bswap:OK
  #330/1   verifier_gotol/gotol, small_imm:OK
  #330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  #330     verifier_gotol:OK
  #338/1   verifier_ldsx/LDSX, S8:OK
  #338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  #338/3   verifier_ldsx/LDSX, S16:OK
  #338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  #338/5   verifier_ldsx/LDSX, S32:OK
  #338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  #338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  #338/8   verifier_ldsx/LDSX, S16 range checking:OK
  #338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  #338/10  verifier_ldsx/LDSX, S32 range checking:OK
  #338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  #338     verifier_ldsx:OK
  #349/1   verifier_movsx/MOV32SX, S8:OK
  #349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  #349/3   verifier_movsx/MOV32SX, S16:OK
  #349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  #349/5   verifier_movsx/MOV64SX, S8:OK
  #349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  #349/7   verifier_movsx/MOV64SX, S16:OK
  #349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  #349/9   verifier_movsx/MOV64SX, S32:OK
  #349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  #349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  #349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  #349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  #349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  #349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  #349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  #349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  #349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  #349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  #349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  #349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  #349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  #349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  #349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  #349     verifier_movsx:OK
  #361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  #361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  #361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  #361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  #361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  #361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  #361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  #361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  #361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  #361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  #361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  #361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  #361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  #361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  #361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  #361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  #361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  #361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  #361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  #361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  #361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  #361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  #361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  #361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  #361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  #361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  #361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  #361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  #361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  #361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  #361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  #361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  #361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  #361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  #361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  #361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  #361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  #361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  #361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  #361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  #361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  #361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  #361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  #361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  #361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  #361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  #361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  #361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  #361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  #361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  #361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  #361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  #361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  #361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  #361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  #361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  #361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  #361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  #361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  #361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  #361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  #361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  #361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  #361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  #361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  #361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  #361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  #361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  #361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  #361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  #361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  #361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  #361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  #361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  #361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  #361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  #361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  #361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  #361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  #361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  #361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  #361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  #361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  #361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  #361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  #361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  #361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  #361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  #361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  #361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  #361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  #361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  #361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  #361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  #361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  #361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  #361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  #361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  #361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  #361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  #361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  #361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  #361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  #361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  #361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  #361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  #361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  #361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  #361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  #361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  #361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  #361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  #361/113 verifier_sdiv/SDIV32, zero divisor:OK
  #361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  #361/115 verifier_sdiv/SDIV64, zero divisor:OK
  #361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  #361/117 verifier_sdiv/SMOD32, zero divisor:OK
  #361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  #361/119 verifier_sdiv/SMOD64, zero divisor:OK
  #361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  #361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  #116/1   ldsx_insn/map_val and probed_memory:FAIL
  #116/2   ldsx_insn/ctx_member_sign_ext:OK
  #116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  #116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  #116/1   ldsx_insn/map_val and probed_memory:FAIL
  #116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-11-08 14:12:21 +08:00

160 lines
3.1 KiB
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// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \
defined(__TARGET_ARCH_loongarch)) && \
__clang_major__ >= 18
SEC("socket")
__description("LDSX, S8")
__success __success_unpriv __retval(-2)
__naked void ldsx_s8(void)
{
asm volatile (
"r1 = 0x3fe;"
"*(u64 *)(r10 - 8) = r1;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r0 = *(s8 *)(r10 - 8);"
#else
"r0 = *(s8 *)(r10 - 1);"
#endif
"exit;"
::: __clobber_all);
}
SEC("socket")
__description("LDSX, S16")
__success __success_unpriv __retval(-2)
__naked void ldsx_s16(void)
{
asm volatile (
"r1 = 0x3fffe;"
"*(u64 *)(r10 - 8) = r1;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r0 = *(s16 *)(r10 - 8);"
#else
"r0 = *(s16 *)(r10 - 2);"
#endif
"exit;"
::: __clobber_all);
}
SEC("socket")
__description("LDSX, S32")
__success __success_unpriv __retval(-1)
__naked void ldsx_s32(void)
{
asm volatile (
"r1 = 0xfffffffe;"
"*(u64 *)(r10 - 8) = r1;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r0 = *(s32 *)(r10 - 8);"
#else
"r0 = *(s32 *)(r10 - 4);"
#endif
"r0 >>= 1;"
"exit;"
::: __clobber_all);
}
SEC("socket")
__description("LDSX, S8 range checking, privileged")
__log_level(2) __success __retval(1)
__msg("R1_w=scalar(smin=smin32=-128,smax=smax32=127)")
__naked void ldsx_s8_range_priv(void)
{
asm volatile (
"call %[bpf_get_prandom_u32];"
"*(u64 *)(r10 - 8) = r0;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r1 = *(s8 *)(r10 - 8);"
#else
"r1 = *(s8 *)(r10 - 1);"
#endif
/* r1 with s8 range */
"if r1 s> 0x7f goto l0_%=;"
"if r1 s< -0x80 goto l0_%=;"
"r0 = 1;"
"l1_%=:"
"exit;"
"l0_%=:"
"r0 = 2;"
"goto l1_%=;"
:
: __imm(bpf_get_prandom_u32)
: __clobber_all);
}
SEC("socket")
__description("LDSX, S16 range checking")
__success __success_unpriv __retval(1)
__naked void ldsx_s16_range(void)
{
asm volatile (
"call %[bpf_get_prandom_u32];"
"*(u64 *)(r10 - 8) = r0;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r1 = *(s16 *)(r10 - 8);"
#else
"r1 = *(s16 *)(r10 - 2);"
#endif
/* r1 with s16 range */
"if r1 s> 0x7fff goto l0_%=;"
"if r1 s< -0x8000 goto l0_%=;"
"r0 = 1;"
"l1_%=:"
"exit;"
"l0_%=:"
"r0 = 2;"
"goto l1_%=;"
:
: __imm(bpf_get_prandom_u32)
: __clobber_all);
}
SEC("socket")
__description("LDSX, S32 range checking")
__success __success_unpriv __retval(1)
__naked void ldsx_s32_range(void)
{
asm volatile (
"call %[bpf_get_prandom_u32];"
"*(u64 *)(r10 - 8) = r0;"
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
"r1 = *(s32 *)(r10 - 8);"
#else
"r1 = *(s32 *)(r10 - 4);"
#endif
/* r1 with s16 range */
"if r1 s> 0x7fffFFFF goto l0_%=;"
"if r1 s< -0x80000000 goto l0_%=;"
"r0 = 1;"
"l1_%=:"
"exit;"
"l0_%=:"
"r0 = 2;"
"goto l1_%=;"
:
: __imm(bpf_get_prandom_u32)
: __clobber_all);
}
#else
SEC("socket")
__description("cpuv4 is not supported by compiler or jit, use a dummy test")
__success
int dummy_test(void)
{
return 0;
}
#endif
char _license[] SEC("license") = "GPL";
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