Extend the existing regression test framework for s390x CPU subfunctions to include tests for the KMAC (Compute Message Authentication Code), KMC (Cipher Message with Chaining), KM (Cipher Message) KIMD (Compute Intermediate Message Digest) and KLMD (Compute Last Message Digest) crypto functions.
The test procedure follows the established pattern.
Suggested-by: Janosch Frank frankja@linux.ibm.com Signed-off-by: Hariharan Mari hari55@linux.ibm.com Reviewed-by: Janosch Frank frankja@linux.ibm.com --- .../kvm/s390x/cpumodel_subfuncs_test.c | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+)
diff --git a/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c b/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c index 1fe4fc709afc..c31f445c6f03 100644 --- a/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c +++ b/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c @@ -37,6 +37,73 @@ static void get_cpu_machine_subfuntions(struct kvm_vm *vm, TEST_ASSERT(!r, "Get cpu subfunctions failed r=%d errno=%d", r, errno); }
+/* + * Testing Crypto Compute Message Authentication Code (KMAC) CPU subfunction's + * ASM block + */ +static void test_kmac_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb91e0000,0,2\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Cipher Message with Chaining (KMC) CPU subfunction's ASM block + */ +static void test_kmc_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb92f0000,2,4\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Cipher Message (KM) CPU subfunction's ASM block + */ +static void test_km_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb92e0000,2,4\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Compute Intermediate Message Digest (KIMD) CPU subfunction's + * ASM block + */ +static void test_kimd_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb93e0000,0,2\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Compute Last Message Digest (KLMD) CPU subfunction's ASM block + */ +static void test_klmd_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb93f0000,0,2\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + /* * Testing Crypto Cipher Message with Counter (KMCTR) CPU subfunction's ASM * block @@ -170,6 +237,17 @@ struct testdef { testfunc_t test; int facility_bit; } testlist[] = { + /* MSA - Facility bit 17 */ + { "KMAC", cpu_subfunc.kmac, sizeof(cpu_subfunc.kmac), + test_kmac_asm_block, 17 }, + { "KMC", cpu_subfunc.kmc, sizeof(cpu_subfunc.kmc), + test_kmc_asm_block, 17 }, + { "KM", cpu_subfunc.km, sizeof(cpu_subfunc.km), + test_km_asm_block, 17 }, + { "KIMD", cpu_subfunc.kimd, sizeof(cpu_subfunc.kimd), + test_kimd_asm_block, 17 }, + { "KLMD", cpu_subfunc.klmd, sizeof(cpu_subfunc.klmd), + test_klmd_asm_block, 17 }, /* MSA - Facility bit 77 */ { "KMCTR", cpu_subfunc.kmctr, sizeof(cpu_subfunc.kmctr), test_kmctr_asm_block, 77 },