From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B6EACCD6E49 for ; Fri, 29 May 2026 15:56:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZtdNOjsS5e1+chG/SOEjXZHnwNU0fc8NOy7/AKFWsBU=; b=kdBlsfZqSfBPp9yQzwYuA7Sjnl nxlL2sHl511N9CFnCre6WnbqAYF3ol5QNv1TpTK2d5t3z0IVrzlwa4ibLCRBypo/dxP0QSdNUKqS3 KmoseLhQPf9OKoiWEEZ7Oz+ocBgOVhZRDwuIRWigCbCqM/Y5jVnOFESlJ4L8vDgGXx4DcfbzxZN+B Z802Vbm97aFiVAluM/JpAfGetc4C4rKn2wyR4vXuPvfT3ToP4xZyRyuNGZq+ZaVaDvfUqVv6yFp1M KMZmMwfeQDW88Q0R9gE2XipPvoK/a+q212EIOccqLlZNGn4ObuTYNGyX6JAnvFpau4YfiwSiRLnd6 K8O0EAFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wSzZo-00000007ma0-19Wf; Fri, 29 May 2026 15:56:48 +0000 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wSzZP-00000007mBz-1aYI for linux-arm-kernel@lists.infradead.org; Fri, 29 May 2026 15:56:24 +0000 Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 64TF5i9E2418034; Fri, 29 May 2026 15:56:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=ZtdNOjsS5e1+chG/S OEjXZHnwNU0fc8NOy7/AKFWsBU=; b=g6b1nIncytF7I5499HWr1yrq1R/EY6xyr TpedGbyJUFiQuSiP5dHBcTGVkd2NTw0gC1p9DisYRdfu0ZIeaHZ3GcBZaxE5oB0e pJSgUV2YjM/XhEc9/2f4qIk1Go/6oV2DIasxS5xEw/TCF7WpHDUmggpcmHYdHlOR cCfC4rSh6pi1VhhDK9daGQVM8QZkD6WJsiX7qDnf56S2PBPigi60gYxGjkAF6aWl 9CBbAlmdURPPpo8/WmXDqpo6z2N/gs+sZMRwE2JoPrs9QI3iWyXg9hyASMgpnhYD 0wxREnxZGzLUcP/WOvTbs7B7tO8OT7kEmYM5vdGD1UTelTZD7xyiw== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4ee884vkmn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 29 May 2026 15:56:10 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 64TFs5Dd003155; Fri, 29 May 2026 15:56:09 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4edjrbgm7r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 29 May 2026 15:56:09 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 64TFu3Dc41877920 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 29 May 2026 15:56:03 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6A71F20040; Fri, 29 May 2026 15:56:03 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1E7BE2004D; Fri, 29 May 2026 15:56:03 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 29 May 2026 15:56:03 +0000 (GMT) From: Steffen Eiden To: 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 , Gautam Gala , Hariharan Mari , Heiko Carstens , Hendrik Brueckner , Ilya Leoshkevich , Janosch Frank , Joey Gouly , Marc Zyngier , Nico Boehr , Nina Schoetterl-Glausch , Oliver Upton , Paolo Bonzini , Suzuki K Poulose , Sven Schnelle , Ulrich Weigand , Vasily Gorbik , Will Deacon , Zenghui Yu Subject: [PATCH v1 03/26] KVM: arm64: Generalize get_idreg_field_*() Date: Fri, 29 May 2026 17:55:36 +0200 Message-ID: <20260529155601.2927240-4-seiden@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260529155601.2927240-1-seiden@linux.ibm.com> References: <20260529155601.2927240-1-seiden@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=L4MtheT8 c=1 sm=1 tr=0 ts=6a19b71a cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=Qz9-bC73Ewa-9BkP4PUA:9 X-Proofpoint-ORIG-GUID: Y8uUbAKDXN_ID0QggIym4anEE5667k0U X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI5MDE1NiBTYWx0ZWRfXyDiYpjBYGR3M 8DzHC0YkcfkpvmaUG1sT7vzwzaTmojweT/MfINdf7VZOBWRVmf/u5NKJP8eytk1Ik4rkGaB4gjO bHT1XNig42Hc3gdqFs3u/2vz9VjmRurEOyBE1DHvrQI7pgS/6joLKTF0hfjUtpvgu16YoUqS4Vy vjPGySXjkiE1po+O9TKyfJcaylw8f3fpskeXclADc7fZfElKxbWvSaN5V2decooYIDkgccuwOp6 KJu3KTwBlx2igMhoxqWhP3N/mxU5IKEffO04xfPzRUAYd2auxb7/pUqdCAjb1CJAZNDwFMROLT/ AN/JvehoyYHHXM01P5J06qKaAnQUEO0LBT/cdpXvudkrOGB3xzglfZyh0peYG14wB2WftzuZ0KJ cEHw+PwrIH1xIYEF93C9EUF48stwT2sLAtENSqXkdxN0MwWKh0YjbW9uuwWw/i8BP2WMaMup+A5 dXrgRLxIFCCVavQW2XA== X-Proofpoint-GUID: Y8uUbAKDXN_ID0QggIym4anEE5667k0U 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=2026-05-29_04,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2605290156 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260529_085623_424020_16696F83 X-CRM114-Status: GOOD ( 12.43 ) 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 Introduce intermediate macros that extract the value from a passed parameter instead of reading the VM's ID register. Allow using other sources of ID register values, i.e. read directly from the hardware or during a sequence of sanitization steps. Co-developed-by: Nina Schoetterl-Glausch Signed-off-by: Nina Schoetterl-Glausch Signed-off-by: Steffen Eiden --- arch/arm64/include/asm/kvm_feature.h | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/arch/arm64/include/asm/kvm_feature.h b/arch/arm64/include/asm/kvm_feature.h index d580f4ffab34..067550d5b208 100644 --- a/arch/arm64/include/asm/kvm_feature.h +++ b/arch/arm64/include/asm/kvm_feature.h @@ -6,20 +6,23 @@ #include #include -#define get_idreg_field_unsigned(kvm, id, fld) \ - ({ \ - u64 __val = kvm_read_vm_id_reg((kvm), SYS_##id); \ - FIELD_GET(id##_##fld##_MASK, __val); \ - }) +#define extract_id_field_unsigned(val, id, fld) \ + (FIELD_GET(id##_##fld##_MASK, (val))) -#define get_idreg_field_signed(kvm, id, fld) \ +#define extract_id_field_signed(val, id, fld) \ ({ \ - u64 __val = get_idreg_field_unsigned(kvm, id, fld); \ + u64 __val = extract_id_field_unsigned((val), id, fld); \ sign_extend64(__val, id##_##fld##_WIDTH - 1); \ }) +#define get_idreg_field_unsigned(kvm, id, fld) \ + extract_id_field_unsigned(kvm_read_vm_id_reg((kvm), SYS_##id), id, fld) + +#define get_idreg_field_signed(kvm, id, fld) \ + extract_id_field_signed(kvm_read_vm_id_reg((kvm), SYS_##id), id, fld) + #define get_idreg_field_enum(kvm, id, fld) \ - get_idreg_field_unsigned(kvm, id, fld) + extract_id_field_unsigned(kvm_read_vm_id_reg((kvm), SYS_##id), id, fld) #define kvm_cmp_feat_signed(kvm, id, fld, op, limit) \ (get_idreg_field_signed((kvm), id, fld) op S64_SYS_FIELD_VALUE(id, fld, limit)) -- 2.53.0