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Tue, 23 Jun 2026 12:02:30 +0000 (GMT) Received: from ltc.linux.ibm.com (unknown [9.5.196.140]) by smtpav01.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 23 Jun 2026 12:02:30 +0000 (GMT) Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Tue, 23 Jun 2026 14:02:30 +0200 From: Harald Freudenberger To: Finn Callies Cc: richard.henderson@linaro.org, iii@linux.ibm.com, david@kernel.org, thuth@redhat.com, berrange@redhat.com, qemu-s390x@nongnu.org, qemu-devel@nongnu.org, linux390-list@tuxmaker.boeblingen.de.ibm.com, linux-s390@vger.kernel.org, dengler@linux.ibm.com, borntraeger@linux.ibm.com, cohuck@redhat.com Subject: Re: [PATCH v7 10/17] target/s390x: Support protected key AES ECB for cpacf km instruction Reply-To: freude@linux.ibm.com Mail-Reply-To: freude@linux.ibm.com In-Reply-To: <7b9de533-5755-4c58-8ea8-4be47fbfc7a3@linux.ibm.com> References: <20260617094820.34402-1-freude@linux.ibm.com> <20260617094820.34402-11-freude@linux.ibm.com> <7b9de533-5755-4c58-8ea8-4be47fbfc7a3@linux.ibm.com> Message-ID: <06f34e1d81212a937f391f699b21071a@linux.ibm.com> X-Sender: freude@linux.ibm.com Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjIzMDA5NyBTYWx0ZWRfX7fO9NX4acb7S upPf95W5XWmeWQgCzFIOaeXN/OG5UOJf/iUVRtKTl8ePRp2DmJj6IKPY7vpIWshh7/XusLdWAKb GBd7EaoB5u2wPXx4kXfUSzJ0ODqyz1Y= X-Proofpoint-ORIG-GUID: 1gCz99LkUeCr-NROszGvlBO3Tu3Evp4d X-Authority-Analysis: v=2.4 cv=Oph/DS/t c=1 sm=1 tr=0 ts=6a3a75db cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=kj9zAlcOel0A:10 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=PCYrZotcpQq2-XiLgeAA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjIzMDA5NyBTYWx0ZWRfXzzMY9s9Lgr3A 4+9n8rU0Vbb2jL7jbYa72OopQWIpQ1JBANGZzwAy+faWw/wbzGRxyKHjI38gfSDCfTGqWGJ4ix3 7KjYFe0K4IPkOLpZ9Rrdy2usmd9q8+L6d7gJ0WKOMBFEk94CTzmMdwQMsQMdiOskBHHay6wSYVI qnoR42xsqqUrhZ/XNQ2UhLx5aaijYZbDPNnelnsXTrHotJXpwoiLOtrPaQxygq/amiPYZcA++Ki sx13bVXtaKebaoip+wFTJtqlfN+upJQ7H9eiO80p/FDSNvOC34IW/aUVsgpfsdu2e7sZb1rNFx5 6CeHcaYE/+27FY65PIOM+TZcUaJW+O0zz9K9T3RU2wV6htEvfHyVH4IJPZyH0tjO8nm32SDnFz4 XJ7KUwmPcQAXAmOLk8sXTaPd4uKlnYdvtfRfflBHwJdX/IcOLUsnpzS04oeZ4XcNfHFGW5fx9PI fBA2zjIOqbLklIDzz5A== X-Proofpoint-GUID: 1gCz99LkUeCr-NROszGvlBO3Tu3Evp4d X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-23_03,2026-06-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 malwarescore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606230097 On 2026-06-18 08:05, Finn Callies wrote: > On 17.06.26 11:48, Harald Freudenberger wrote: >> Support the subfunctions CPACF_KM_PAES_128, CPACF_KM_PAES_192 >> and CPACF_KM_PAES_256 for the cpacf km instruction. >> >> Signed-off-by: Harald Freudenberger >> Tested-by: Holger Dengler >> --- >> target/s390x/gen-features.c | 3 ++ >> target/s390x/tcg/cpacf.h | 4 ++ >> target/s390x/tcg/cpacf_aes.c | 87 >> ++++++++++++++++++++++++++++++++ >> target/s390x/tcg/crypto_helper.c | 7 +++ >> 4 files changed, 101 insertions(+) > > [ snip ] > >> diff --git a/target/s390x/tcg/crypto_helper.c >> b/target/s390x/tcg/crypto_helper.c >> index e1952ae4bc..988226338d 100644 >> --- a/target/s390x/tcg/crypto_helper.c >> +++ b/target/s390x/tcg/crypto_helper.c >> @@ -103,6 +103,13 @@ static int cpacf_km(CPUS390XState *env, const int >> mmu_idx, uintptr_t ra, >> &env->regs[r1], &env->regs[r2], >> &env->regs[r2 + 1], >> S390_FEAT_TYPE_KM, fc, mod); >> break; >> + case 0x1a: /* CPACF_KM_PAES_128 */ >> + case 0x1b: /* CPACF_KM_PAES_192 */ >> + case 0x1c: /* CPACF_KM_PAES_256 */ > > please order these correctly in the switch. For the switch statement > it doesn't matter but it improves readability. 0x1a is greater than > 0x34. > I don't get this. The switch is ordered by increasing value. What do you mean here ? >> + rc = cpacf_paes_ecb(env, mmu_idx, ra, env->regs[1], >> + &env->regs[r1], &env->regs[r2], >> &env->regs[r2 + 1], >> + S390_FEAT_TYPE_KM, fc, mod); >> + break; >> case 0x32: /* CPACF_KM_XTS_128 */ >> case 0x34: /* CPACF_KM_XTS_256 */ >> rc = cpacf_aes_xts(env, mmu_idx, ra, env->regs[1],