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 C301E10ED664 for ; Fri, 27 Mar 2026 13:01:23 +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=cmKEJw/Cj9xm1e8qrjGHcR9wgMrGReZF95ggP692XqY=; b=Di+aHqkPUHuUJrvRoYmzhFi2Cr thZxyBJfaa8wE8XOCzKBnwLZ3m/OGPRdwVfaQDqCkHjfnFalcpNUkNE3Z0oyGOdn71Mgd96rke1yn hNAxkNqly8bMociv9Qg5l2i77cmWyXjqwcf1rhX7ZaWI8H5gZnwZ60nyHu4fxkLcmcJ/uGHwQ7uHG qRZtC0UZxH3fmILUViT0KFigKcF8OQsr4Cz9Hk2H6uGxI5VzWFVqraFxQKjx73WyLfe31Hwko+kvl 5dUQHO9EuCo/fMGHmUtcJIe4X+kqLrQm0yx8gpx4OXimwOmZrOTqPiC9sW/kZD4oLnGTCJktWpjNd JbJLSHXg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w66oO-00000007NtP-2YtV; Fri, 27 Mar 2026 13:01:16 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w66oM-00000007Nsx-1Ym8 for linux-arm-kernel@lists.infradead.org; Fri, 27 Mar 2026 13:01:15 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 86EBB6132B; Fri, 27 Mar 2026 13:01:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD901C19423; Fri, 27 Mar 2026 13:01:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774616473; bh=clZGoSYnunaz353uIOTaKe0JjLBlcI1p6Gjqr/3pQlY=; h=From:To:Cc:Subject:Date:From; b=PwixPOwjLr7IToaBIVQvvm8EabafJiiQs273lGLio3ZnZ8LquoyM5RStVq6Qk3YWr 30tO7KfGGpZ1oNVvK6uagOMCmIYGrWTpQ94VQXQpWgPm4NFzOeGe7QRY0EtloRCMFK m4qsJlfszlS+hAs6Zo942V0Bkt3efxd/4e8G5R+ShjiyVsUJAUrG8QFFI6nK2T7A1n uHPfneNduK9KhIrEipXQwXPZ43AHYCQjv4DtY3SeaDDQN49omOBhg2GcIUKv0gcNgo TQ8JinVdHIm2XoWjIBXJNJDj87EQ555xSPCQSvhj69fbGS8crz5jTPSNSHGQ3QkC6R EFjv/ZmAfr0qA== From: Will Deacon To: kvmarm@lists.linux.dev Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, Will Deacon , Marc Zyngier , Oliver Upton , James Clark , Leo Yan , Suzuki K Poulose , Fuad Tabba , Alexandru Elisei , Yabin Cui Subject: [PATCH v4 0/3] KVM: arm64: Fix SPE and TRBE nVHE world switch Date: Fri, 27 Mar 2026 13:00:43 +0000 Message-ID: <20260327130047.21065-1-will@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Hi all, I got the Sashiko treatment on v3, so here's a quick respin to address the BRBE thinko it found in the last patch. Previous versions of the series are available at: v1: https://lore.kernel.org/r/20260216130959.19317-1-will@kernel.org v2: https://lore.kernel.org/r/20260227212136.7660-1-will@kernel.org v3: https://lore.kernel.org/r/20260326141214.18990-1-will@kernel.org Changes since v3 include: * Retain zeroing of *brbcr_el1 when saving BRBE state * Dropped R-b / T-b tags on the BRBE patch Cheers, Will Cc: Marc Zyngier Cc: Oliver Upton Cc: James Clark Cc: Leo Yan Cc: Suzuki K Poulose Cc: Fuad Tabba Cc: Alexandru Elisei Cc: Yabin Cui --->8 Will Deacon (3): KVM: arm64: Disable TRBE Trace Buffer Unit when running in guest context KVM: arm64: Disable SPE Profiling Buffer when running in guest context KVM: arm64: Don't pass host_debug_state to BRBE world-switch routines arch/arm64/include/asm/kvm_host.h | 2 + arch/arm64/kvm/hyp/nvhe/debug-sr.c | 116 +++++++++++++++++++++++------ arch/arm64/kvm/hyp/nvhe/switch.c | 2 +- 3 files changed, 95 insertions(+), 25 deletions(-) -- 2.53.0.1018.g2bb0e51243-goog