From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793987382; b=DMF7fPYY1+VJp0VYOJKo5iYsPLB5qu/mYi26hrh/fV7Wct47D/3etqZDxbBJ9xZHZZOK eysK+EEXU3+uwxlrQmpu65ouFPDaSklqvxZ7qtrHpkRsO3sdwwMUa+FBDrxRGBIcX3pVR sUhXJAC2Nc5x+tXAA5eERpEnUZuw93NfCRTmyup4SxsrHK0/sHwZUZCPBT7URUNO04+os MmEIOp1iPOQsn69RpYE1HWIWIdxXGikk3pRQcPrc9xEftUbcY3RFaQ8afB4QgLaAP0/v+ Qkxwhacd89G5q6M1tWamMOad9IklQoRfvvqhzoH0D9tUL5PjTF4cuUSUxFdUEjAUO9g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793987382; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=RiiHtFahOon4riJefsleISvmBFbi0CFp3GLVd3PFoM4=; b=GKUhRhepT91p0rUkIRoa/4ngM8mxDii8c71JOYfxebKtyo77r75XE9hrpHgqRFIH5WaH 8qAcXk2Sz/cmeujzhFET5X1wuM9CQAWPO43RXUqsDlW2QBtv7oqpLVl7cppzLhszVTErJ lqSi2V3AFxkaPmLzHD4decPKDPvtVrF8j9vuHKV32hNFYegpSDxzIobXQikG2u4X4e5t2 J2tSkyLqChjtMgcsQwV/r8tEkhI2I9veZG3oxM6GQKqPg3SbKqJk5g8xwXHOfr8hkY7iP 33phaX4O/1C1eXd9/FQMRYIGb62ZAbQubCaM2TvuykR1f1bz3cb06aIAPreu7+auk9Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=GDFiqBj8; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C0601606A32C for ; Fri, 6 Nov 2026 17:49:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=GDFiqBj8 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D06C1F008A4; Fri, 6 Nov 2026 17:49:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793987381; bh=RiiHtFahOon4riJefsleISvmBFbi0CFp3GLVd3PFoM4=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=GDFiqBj8pXn9zfiI3dSHoi6ggpzBGHVn+k0qyxYFuV2UHnLN9hixfkkq0TiwGy/vm EALIComYIBSp0hkPFRxUa8+BQWXtFdMe7HvWRYj9uAmcN+iDqq3hrWi/DZmpyUaWf1 e2gn4mr5xL1d8hfhh9qFS9nm1TzgmwlWfoUb/Vf6X0KFDo72CbNI5X3UfNZWQTlvH1 vekTMhyjzE43VIAKMs2l3ZSX07EkYIPefKDI4N1dqWG/SlXkzzXO5X97U08JJnGbgb ZcEKDdixbXB4BHetxITRlQfFO5NRMhfoGe75p2YqgHffYDlYWkhQspKHZN/DbC0ZNK gJXdZNnYY218w== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v3 14/23] KVM: s390: arm64: Verify machine feature set before loading Reply-To: sashiko-reviews@lists.linux.dev To: "Steffen Eiden" Cc: linux-s390@vger.kernel.org, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261106-sysreg-v3-14-75e95980fb10@linux.ibm.com> References: <20261106-sysreg-v3-0-75e95980fb10@linux.ibm.com> <20261106-sysreg-v3-14-75e95980fb10@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 06 Nov 2026 17:49:40 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Arm guests on s390 need more than the Arm Execution Facility alone. In > addition, the PTFF time conversion functions are required. In addition > the guest mapping relies on EDAT2 for large pages. >=20 > Verify that these features are present before loading the kvm_arm64 > module. Every machine having the aef facility present should also > support those. Print an error message if this is not the case. >=20 > Co-developed-by: Andreas Grapentin > Signed-off-by: Andreas Grapentin > Signed-off-by: Steffen Eiden Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261106-sysreg-v3-= 0-75e95980fb10@linux.ibm.com?part=3D14