From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B07F9274B59; Tue, 25 Nov 2025 19:41:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764099705; cv=none; b=Dk9lKaUZhuQPr2R9EYzilVRTiGAayZFOqb6iGpQjgqA2bSmOpBdQp7rujM+ZsCFhdlkOHaK5oq7Ib72mkvxFjh9lHDiPBAiHuaGWo9XO7WVOwLFLOwA30UR4XYNB8Rc8wT3W0e3bxwBM2lOvg30Jkc6uV+t2EWlg/wfixeDEw4g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764099705; c=relaxed/simple; bh=q1XrjBDBdd+NI+CU1uTxO0pJaAQ+bVffaYJhhaFxauQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=OhzxDl+v9DlkgJzWkI0l8/4cKMRXP0CKPtalSQhAwQ+hl3metmIOKSQR6P5ZBzAD23YBHzWI+Krw14HDApCWmHZVOaPAuoA0llK8wx++UG8IL1QFcIMowk82PEIztKjCAXAv1yaXCHNkJwVsjEJMrjRpNO5DA1TAWO40JcFQSf8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ri//HlS/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ri//HlS/" 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 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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