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Mon, 19 Aug 2024 14:00:46 +0000 (GMT) From: Hariharan Mari To: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, shuah@kernel.org, frankja@linux.ibm.com, borntraeger@linux.ibm.com, imbrenda@linux.ibm.com, david@redhat.com, pbonzini@redhat.com Subject: [PATCH v1 3/5] KVM: s390: selftests: Add regression tests for KMCTR, KMF, KMO and PCC crypto subfunctions Date: Mon, 19 Aug 2024 15:54:24 +0200 Message-ID: <20240819140040.1087552-4-hari55@linux.ibm.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240819140040.1087552-1-hari55@linux.ibm.com> References: <20240819140040.1087552-1-hari55@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: UdF8ayw5MkoT1GjbGJlYQCV0GI9QpbLK X-Proofpoint-ORIG-GUID: fZFj7OUOdm0TiHg0qnKiywcwTk25m7vt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-19_11,2024-08-19_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 adultscore=0 suspectscore=0 spamscore=0 mlxlogscore=999 bulkscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408190090 Extend the existing regression test framework for s390x CPU subfunctions to include tests for the KMCTR (Cipher Message with Counter) KMO (Cipher Message with Output Feedback), KMF (Cipher Message with Cipher Feedback) and PCC (Perform Cryptographic Computation) crypto functions. The test procedure follows the established pattern. Suggested-by: Janosch Frank Signed-off-by: Hariharan Mari Reviewed-by: Janosch Frank --- .../kvm/s390x/cpumodel_subfuncs_test.c | 65 +++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c b/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c index c2ae5b270f50..6ef9e855ac65 100644 --- a/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c +++ b/tools/testing/selftests/kvm/s390x/cpumodel_subfuncs_test.c @@ -37,6 +37,62 @@ 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 Cipher Message with Counter (KMCTR) CPU subfunction's ASM + * block + */ +static void test_kmctr_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rrf,0xb92d0000,2,4,6,0\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Cipher Message with Cipher Feedback (KMF) CPU subfunction's + * ASM block + */ +static void test_kmf_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb92a0000,2,4\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Cipher Message with Output Feedback (KMO) CPU subfunction's + * ASM block + */ +static void test_kmo_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb92b0000,2,4\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + +/* + * Testing Crypto Perform Cryptographic Computation (PCC) CPU subfunction's + * ASM block + */ +static void test_pcc_asm_block(u8 (*query)[16]) +{ + asm volatile(" la %%r1,%[query]\n" + " xgr %%r0,%%r0\n" + " .insn rre,0xb92c0000,0,0\n" + : [query] "=R" (*query) + : + : "cc", "r0", "r1"); +} + /* * Testing Crypto Perform Random Number Operation (PRNO) CPU subfunction's * ASM block @@ -114,6 +170,15 @@ struct testdef { testfunc_t test; bool facility_bit; } testlist[] = { + /* MSA - Facility bit 77 */ + { "KMCTR", cpu_subfunc.kmctr, sizeof(cpu_subfunc.kmctr), + test_kmctr_asm_block, 77 }, + { "KMF", cpu_subfunc.kmf, sizeof(cpu_subfunc.kmf), + test_kmf_asm_block, 77 }, + { "KMO", cpu_subfunc.kmo, sizeof(cpu_subfunc.kmo), + test_kmo_asm_block, 77 }, + { "PCC", cpu_subfunc.pcc, sizeof(cpu_subfunc.pcc), + test_pcc_asm_block, 77 }, /* MSA5 - Facility bit 57 */ { "PPNO", cpu_subfunc.ppno, sizeof(cpu_subfunc.ppno), test_prno_asm_block, 57 },