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 98A043E5EFB for ; Fri, 27 Mar 2026 13:01:13 +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=1774616473; cv=none; b=YkdeabJIX98NH9KnafxfsrAWWqPf7keq1p0wTobVDC2Fi76cZV8AocByoKQ4mWc0Sulows7tFAgs5fnZY06brUG3HsBYQIi84JdIpKP/piJ4QCbD1vne8JhPm58TTYbbCp24y8ZiBjvSvG0N7KOa/7JmIyWYua8PnpWNkqBxtQA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774616473; c=relaxed/simple; bh=clZGoSYnunaz353uIOTaKe0JjLBlcI1p6Gjqr/3pQlY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Yexx4ugnhTzi/N7WD0X3t7jbqOOW/sHQclztNc0rzgR7daTbGE1UoHi3BgcF9aJbUvcAiUTy+62ZxCX/d2pnrD8QkZM8792loiSzgW+Y5UNSNZNyfX2o4tez5Ea+0WEX0Lr6daysqvPyDj7+C6/6sdwwkuL5gWdGYzACqcFEtXM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PwixPOwj; 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="PwixPOwj" 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 Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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