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Fri, 28 Aug 2026 11:33:56 +0000 (GMT) Received: from [9.87.143.119] (unknown [9.87.143.119]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 28 Aug 2026 11:33:55 +0000 (GMT) Message-ID: Date: Fri, 28 Aug 2026 13:33:55 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 29/33] KVM: s390: arm64: Implement required functions To: Steffen Eiden , kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Cc: Alexander Gordeev , Andreas Grapentin , Arnd Bergmann , Catalin Marinas , Christian Borntraeger , Claudio Imbrenda , David Hildenbrand , Friedrich Welter , Fuad Tabba , Gautam Gala , Hariharan Mari , Heiko Carstens , Hendrik Brueckner , Ilya Leoshkevich , Joey Gouly , Marc Zyngier , Nico Boehr , Nina Schoetterl-Glausch , Oliver Upton , Paolo Bonzini , Sean Christopherson , Suzuki K Poulose , Sven Schnelle , Ulrich Weigand , Vasily Gorbik , Will Deacon , Zenghui Yu References: <20260812153631.3376090-1-seiden@linux.ibm.com> <20260812153631.3376090-30-seiden@linux.ibm.com> Content-Language: en-US From: Janosch Frank Autocrypt: addr=frankja@linux.ibm.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: Tch2NNvRdKefxB0PzPY6lKbM19dcq_qE X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDA5OSBTYWx0ZWRfX0HMp9OpG7mvA slaeUfcdlAQsx0b9GQLBEkOgP1j+VAMMPOo6tXGyvCkWKNVWkuWNM1EyOrPNuTW5YJVJBR0KJ/a nqz9+0ZikVtjpRfEGs0dFH1veTJyFxo= X-Proofpoint-GUID: BJu3o21MqSYfikmZ2ldz42KmaIqL8RvW X-Authority-Analysis: v=2.4 cv=JZyMa0KV c=1 sm=1 tr=0 ts=6a91722a cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=gIM_mWzjaQG1OS2HR58A:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDA5OSBTYWx0ZWRfX+Svwl7TwVzW6 wml0NXrfWUSV4mpg5Aa7r3d1tF/zEB+7OqmFfR2AL7p8ain+aF1DRjc/tu+eaTzb6XX0tXSxA/2 lGD2RZtdF9AhbQsmCvzGKqiwQ88lQZI7Pv0uy6hFHH0GCS3MAh1QvWv797wOQsJX5HEzI642pkY dFNq0VWKzcCBcDPWG+lvJz01uy+cQftCkDAl751OS8d3aKR6b3xsqgogsEZvEZGMtGE0LB2/mZM s/hzsZV6T3jOSKp0ekB6q3mvtSLp1QC9w5sg93psTnFtTpJZzoV/07Jdnh52LxgD7yeZTagA0Ev qvhs7lugI3iaz1nlOUCl+liJ4XySWoGhgzT8U2Se0s8wEb4QEou7LkkaZcX0r0nhYRkC0g8AWlp oDo0ewm9oHT5VP6vJWi7y40bLm/P5+bgJArGyOl3ZjjMqFdihgSbNuCHZkXv+a+AAoDEXZEpIno 22AM5tcBLjVZ5jXVfGg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-28_03,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 adultscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608280099 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260828_043414_578931_24DE555B X-CRM114-Status: GOOD ( 13.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 8/12/26 5:36 PM, Steffen Eiden wrote: > Implement the mostly trivial functions that the shared arm64 (kvm) > code & headers oblige s390 to implement. > > Implement a very basic smccc handler that (non-compliantly) is just able > to stop a vcpu. > > Signed-off-by: Steffen Eiden > --- > arch/s390/include/arm64/kvm_emulate.h | 130 ++++++++++++++++++++++++++ > arch/s390/include/arm64/kvm_nested.h | 11 +++ > arch/s390/include/arm64/ptrace.h | 11 +++ > arch/s390/include/arm64/sysreg.h | 13 +++ > arch/s390/kvm/arm64/handle_exit.c | 98 +++++++++++++++++++ > arch/s390/kvm/arm64/inject_fault.c | 21 +++++ > 6 files changed, 284 insertions(+) > create mode 100644 arch/s390/include/arm64/kvm_emulate.h > create mode 100644 arch/s390/include/arm64/kvm_nested.h > create mode 100644 arch/s390/include/arm64/ptrace.h > create mode 100644 arch/s390/include/arm64/sysreg.h > create mode 100644 arch/s390/kvm/arm64/handle_exit.c > create mode 100644 arch/s390/kvm/arm64/inject_fault.c > [...] > +static __always_inline unsigned long kvm_vcpu_get_hfar(const struct kvm_vcpu *vcpu) > +{ > + return vcpu->arch.sae_block.hai.far_elz; > +} > + > +static __always_inline phys_addr_t kvm_vcpu_get_fault_ipa(const struct kvm_vcpu *vcpu) > +{ > + return vcpu->arch.sae_block.hai.teid.addr * PAGE_SIZE; gfn_to_gpa()?