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 128C4D0EE1C for ; Tue, 25 Nov 2025 19:41:53 +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: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:In-Reply-To:References:List-Owner; bh=yyxlkEr+mm1OXXG/cfaCg5SHXW8RBD3NDq8dNVy7uzM=; b=kV/Q4iBimNKd2sZ2gRILjEALET 83DbypVOsFmZVqcayxeeyYK7proTZVxr253LyCYwi7UmetsJjlRPDjQ7QpQRp7KT3p8FwIwlFr0E5 Zl1UUmPg0actbhOC6iCr1dH1KHUfYbsAw8DT8zxDRodWnbUZJ7iEG9IZKI6mmgWG7Q1U7YdDmr6Zu af7xbv5YT88MG2C56TiilpSHsZnRa1qwEQ8v1eQXlnTCUw+lNpzv8oJt5diOaHktAvudF8WthHAB+ QMsA06IOJ3rXCWDdEcGOtbIoa58zyB6ROL724cq8tc0PQ2Fzs89rA0f59mpstzxGzhj/1G82X4AkW 06tBYn3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNyv6-0000000Dqm8-1q3k; Tue, 25 Nov 2025 19:41:48 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNyv4-0000000Dqlk-0FsJ for linux-arm-kernel@lists.infradead.org; Tue, 25 Nov 2025 19:41:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 6348A4011F; Tue, 25 Nov 2025 19:41:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3AD6CC4CEF1; Tue, 25 Nov 2025 19:41:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764099705; bh=q1XrjBDBdd+NI+CU1uTxO0pJaAQ+bVffaYJhhaFxauQ=; h=From:To:Cc:Subject:Date:From; b=Ri//HlS/rWxwFVTtjDva4j/if+FF9A0+ocX/LBtvCM1iUVyYF+HV7lFyslkhQLj5h bYmGkQEuFQyH7NZTbZJTCofjUJBy5wmF19PWxLnAImrsJbu6g2PaX0CB7ilcMy9oG1 JDnUbneEs1ePLz7svQVGE3P0hifg3R8nONn/mErdSv3z+NosCPnkaFpmZRZNYBwaW5 fFY+8KF/TeoZNsAb9jb+nSKTxSpQh+/dwzv/ShfUQ7VnAa9S78msCP8dzSbzVSiajv IEodzobJg/S+/cdEOz8UeJUd9RbcdZ4lOsjNDROgKhs5LjOIz/51y9ymkhMvYRTIP9 CZsFdPcwp+4LQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vNyv0-00000008GGi-3P2p; Tue, 25 Nov 2025 19:41:42 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org Cc: Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , kernel test robot Subject: [PATCH] KVM: arm64: Add endian casting to kvm_swap_s1_desc() Date: Tue, 25 Nov 2025 19:41:37 +0000 Message-ID: <20251125194138.1097971-1-maz@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, joey.gouly@arm.com, suzuki.poulose@arm.com, oupton@kernel.org, yuzenghui@huawei.com, lkp@intel.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251125_114146_116396_B0A80C51 X-CRM114-Status: GOOD ( 10.36 ) 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 Keep sparse quiet by explicitly casting endianness conversion when swapping S1 descriptors. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202511260246.JQDGsQKa-lkp@intel.com/ Fixes: c59ca4b5b0c3f ("KVM: arm64: Implement HW access flag management in stage-1 SW PTW") Signed-off-by: Marc Zyngier --- arch/arm64/kvm/at.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/kvm/at.c b/arch/arm64/kvm/at.c index f774a02d9393b..d25fef0f66e21 100644 --- a/arch/arm64/kvm/at.c +++ b/arch/arm64/kvm/at.c @@ -386,11 +386,11 @@ static int kvm_swap_s1_desc(struct kvm_vcpu *vcpu, u64 pa, u64 old, u64 new, struct s1_walk_info *wi) { if (wi->be) { - old = cpu_to_be64(old); - new = cpu_to_be64(new); + old = (__force u64)cpu_to_be64(old); + new = (__force u64)cpu_to_be64(new); } else { - old = cpu_to_le64(old); - new = cpu_to_le64(new); + old = (__force u64)cpu_to_le64(old); + new = (__force u64)cpu_to_le64(new); } return __kvm_at_swap_desc(vcpu->kvm, pa, old, new); -- 2.47.3