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Fri, 06 Nov 2026 16:08:20 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6A6G8Gur47579590 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 6 Nov 2026 16:08:16 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5FFAF20040; Fri, 6 Nov 2026 16:08:16 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 03FC42005A; Fri, 6 Nov 2026 16:08:16 +0000 (GMT) Received: from a46lp73.lnxne.boe (unknown [9.87.84.240]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 6 Nov 2026 16:08:15 +0000 (GMT) From: Steffen Eiden Date: Fri, 06 Nov 2026 17:07:39 +0100 Subject: [PATCH v3 06/23] KVM: s390: arm64: Prepare for sharing arm64 SVE and ftr-reg code X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261106-sysreg-v3-6-75e95980fb10@linux.ibm.com> References: <20261106-sysreg-v3-0-75e95980fb10@linux.ibm.com> In-Reply-To: <20261106-sysreg-v3-0-75e95980fb10@linux.ibm.com> To: Marc Zyngier , Oliver Upton , Fuad Tabba , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Mark Rutland , Andreas Grapentin , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sven Schnelle , Friedrich Welter , Gautam Gala , Hariharan Mari , Hendrik Brueckner , Nico Boehr , Ulrich Weigand , Arnd Bergmann , Paolo Bonzini Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, Steffen Eiden X-Mailer: b4 0.14.3 X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=QYDzLcbv c=1 sm=1 tr=0 ts=6aedfb75 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=6ud2rAkrWTPY0GCDnFoA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: 9fyAJ52TrLGHCQDehdYavzsUJGtEwYpq X-Proofpoint-ORIG-GUID: 9fyAJ52TrLGHCQDehdYavzsUJGtEwYpq X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA2MDA2MiBTYWx0ZWRfXwoCa7takuaX0 zhk77HMKKmIq0whq5sF8gsi1FcjgsP25TQov/zaCk8W7DhZd2ydmpFdIbiKF8M+B8WPriknYjX/ a01Lp04mSnrTJXx44A4rqm49grtMg/4= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA2MDA2MiBTYWx0ZWRfX+jvDCirEzeOj bw7xbJbAPKhX6EWmqH9h46MNwnqPSEfZ7uhW+xWut916BADkjZCkR4k4cM373r0Q4B6jqtyiqdJ e5k50Q3UCZMfLpFQ0D3Txqvi7W7t88L30Vkbr5Zl0D/ZEl6hyKAnS1TDM0AHi2jc5s7Z24/A13Q Qy1kTAVR/taIKzuLLRozY82HQO4Ib/gqZyrYpbRD/MZHt4YA/DZk3iSoopYEj02Y7L9h/FC+L6Q Aw8n0I/eMwneN3P9c4tsieu5Pbeh66DZ7Pu2fUwqe4w5tg0QJ2KZJECG99yRJeaqcn3TLyn0LbN U0Gqve0AlT7aFjayv9d/7PxED9YKReJwQXN7wqeKvRZOPBC+mm8mZDRK/U8oxY2aOAlrbDNBsPL /HhBLwq1SuEPa31KtEH+TT93oAebpZ8SzMciKv+6oZDQdgdleqxrJ1ANo8HYL1kDS5xeNGUfvNR LxlYmIWWs1uE5Up2INA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-06_05,2026-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 clxscore=1015 impostorscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611060062 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261106_080839_092472_080007D5 X-CRM114-Status: GOOD ( 12.81 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Add required SVE and feature-register definitions to the arm64 on s390 host code. The definitions are required to be able to build shared SVE related code. No functional changes. Co-developed-by: Andreas Grapentin Signed-off-by: Andreas Grapentin Signed-off-by: Steffen Eiden --- arch/s390/kvm/arm64/arm.c | 2 ++ arch/s390/kvm/arm64/guest.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/arch/s390/kvm/arm64/arm.c b/arch/s390/kvm/arm64/arm.c index bd9d85235f43..29d3add0bbda 100644 --- a/arch/s390/kvm/arm64/arm.c +++ b/arch/s390/kvm/arm64/arm.c @@ -8,6 +8,7 @@ #include #include #include +#include #include @@ -24,6 +25,7 @@ #include "trace.h" static unsigned long system_supported_vcpu_features(struct kvm_vcpu *vcpu); +#define read_sanitised_ftr_reg(_id) 0 #define __INCL_GEN_ARM_FILE #include "generated/arm.inc" diff --git a/arch/s390/kvm/arm64/guest.c b/arch/s390/kvm/arm64/guest.c index 4ea6fe2c270d..8b5ee9e79a4f 100644 --- a/arch/s390/kvm/arm64/guest.c +++ b/arch/s390/kvm/arm64/guest.c @@ -5,6 +5,12 @@ #include #include +#define SVE_VQ_MIN __SVE_VQ_MIN +#define SVE_NUM_ZREGS KVM_ARM64_SVE_NUM_ZREGS +#define SVE_NUM_PREGS KVM_ARM64_SVE_NUM_PREGS + +#define vcpu_sve_slices(_vcpu) 1 + #define __INCL_GEN_ARM_FILE #include "generated/guest.inc" #undef __INCL_GEN_ARM_FILE -- 2.56.0