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 1AA6CE6F06C for ; Fri, 1 Nov 2024 15:41:53 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2+MyDPhu+gRQJeZ5D9KJsASFFjjeY9n3SiERHagzivM=; b=eU3HpiNn9/hfDck6QLn8Ii0bgj s8+jRLdbK/Xth0ooeMHTBMHF6RMWo+mxOQqj7PGO8g08wNi2rGkdCEaDhHodFXOsg9ZVS2akD/YSh SYDGbRZ5VyQeMeljoPFLbyaP5IE/67PBJ3ccSmBfACGCYPdnNbY5lzlGZhuMDTDdCodfvShlPTccM kPfxlJqRBPc6zYKb7y3RJ9/6pGyfNpuwGwQ9cYxhjo6E9cT8M9/ONuwDQnby6xEsRJEqRI3YBiwzI ReuG8J5VNIbLhFJqAcnqTMLUODHweYxo8mnp1Qzvsdk/8u+3H7I8TUVkHswU9CQbIHc6n5j++z60X 67GAEfdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t6tmQ-00000007XmU-0htI; Fri, 01 Nov 2024 15:41:42 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t6tgg-00000007WrR-3Mp3 for linux-arm-kernel@lists.infradead.org; Fri, 01 Nov 2024 15:35:48 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 43B1FA436CF; Fri, 1 Nov 2024 15:33:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2FA3C4CECD; Fri, 1 Nov 2024 15:35:43 +0000 (UTC) Date: Fri, 1 Nov 2024 15:35:41 +0000 From: Catalin Marinas To: Marc Zyngier Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Will Deacon , Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu Subject: Re: [PATCH] arm64: Expose ID_AA64ISAR1_EL1.XS to sanitised feature consumers Message-ID: References: <20241031083519.364313-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241031083519.364313-1-maz@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241101_083546_920111_2866904D X-CRM114-Status: GOOD ( 10.57 ) 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 On Thu, Oct 31, 2024 at 08:35:19AM +0000, Marc Zyngier wrote: > Despite KVM now being able to deal with XS-tagged TLBIs, we still don't > expose these feature bits to KVM. > > Plumb in the feature in ID_AA64ISAR1_EL1. > > Fixes: 0feec7769a63 ("KVM: arm64: nv: Add handling of NXS-flavoured TLBI operations") > Signed-off-by: Marc Zyngier Acked-by: Catalin Marinas Happy for this to go in as a fix via the kvm tree but let me know if I should pick it up instead. -- Catalin