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 A64D2C83F1B for ; Mon, 14 Jul 2025 12:48:00 +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=Hr1wlHQ+lXaQ4+99lgKNPbOf0JmqJw/ZHSxqdqn5tUA=; b=cV6GHHLJVULDHnavUUKGp1xXsa QNKyUNb9FDmm9JOUyWdo7+jXK5Bo5kHwGp418lYOcspye9PskCLNnv8K9jctmPxTAUcDvYa1MzC/y LXv39Ly4MEAAhCNOMObCtHDlxPqOTbN3FMKbgpG1UnNvIaUOq2B4dqOx8vPD8qF20kF01y44v968P WPIEVVAqCfyd7o3GTmuHCt5zfn49Kg+rDVz8VxszDw0Oxoh5Mhf4OQc8CYm/kXsU2vT5NDnzQuSYj c79qDgXIhXEfHdVWm3pZWzqy1bWTgelayuUxfww8YTIx8DFUZE3CfwwhlG0ZjcS+wuQlfLeLy1Dtr nqobF+Iw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ubIb5-00000002CYh-0vJt; Mon, 14 Jul 2025 12:47:55 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ubIGb-000000029iz-10RI for linux-arm-kernel@lists.infradead.org; Mon, 14 Jul 2025 12:26:46 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8A19B5C5E77; Mon, 14 Jul 2025 12:26:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A3A2C4CEED; Mon, 14 Jul 2025 12:26:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752496004; bh=ncwASAA1qi99xaHllmrz6NR9vRZXa0OXO/G8CF9AaoA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SkjN7X8lo/gUYjopp59OGVBV5OTYpP6g/nojuQ/EmEgJOt5mwhl+qccDIrpWMqo4L bobBG+h4fu7rVhecD+De3hwcF31M2VRVGoAlNNOwtiR3V/vGmXm/WjQ1IPpxyilevm y5Z4dInppH7HI8yR/2nCMlv7+GzrC06E7+ufXeaHo52yNrzLPXAsKy+Mr1HIQ1sZB+ 0kQkVtGVBzrPIuolUax1AlVbr5V4/uVRzMsqK+x7oxyxj+l+E5mYXuyh1dUwyFW4rx R/GHkKM5ACGJ93H18ZP/lMHAv4jU/vJlPIeR7zlKyrILcp4ZFWrX0hLq7HMQMZ0BLb JxO8kCVm8pJDg== 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 4.95) (envelope-from ) id 1ubIGY-00FW7V-JG; Mon, 14 Jul 2025 13:26:42 +0100 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 , Eric Auger , Peter Maydell Subject: [PATCH 05/11] KVM: arm64: Let GICv3 save/restore honor visibility attribute Date: Mon, 14 Jul 2025 13:26:28 +0100 Message-Id: <20250714122634.3334816-6-maz@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250714122634.3334816-1-maz@kernel.org> References: <20250714122634.3334816-1-maz@kernel.org> 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, oliver.upton@linux.dev, yuzenghui@huawei.com, eric.auger@redhat.com, peter.maydell@linaro.org 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-20250714_052645_320858_2C3044D8 X-CRM114-Status: GOOD ( 11.26 ) 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 The GICv3 save/restore code never needed any visibility attribute, but that's about to change. Make vgic_v3_has_cpu_sysregs_attr() check the visibility in case a register is hidden. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/vgic-sys-reg-v3.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/vgic-sys-reg-v3.c b/arch/arm64/kvm/vgic-sys-reg-v3.c index 5eacb4b3250a1..6f40225c4a3ff 100644 --- a/arch/arm64/kvm/vgic-sys-reg-v3.c +++ b/arch/arm64/kvm/vgic-sys-reg-v3.c @@ -341,8 +341,12 @@ static u64 attr_to_id(u64 attr) int vgic_v3_has_cpu_sysregs_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr) { - if (get_reg_by_id(attr_to_id(attr->attr), gic_v3_icc_reg_descs, - ARRAY_SIZE(gic_v3_icc_reg_descs))) + const struct sys_reg_desc *r; + + r = get_reg_by_id(attr_to_id(attr->attr), gic_v3_icc_reg_descs, + ARRAY_SIZE(gic_v3_icc_reg_descs)); + + if (r && !sysreg_hidden(vcpu, r)) return 0; return -ENXIO; -- 2.39.2