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 DEBD910A62DA for ; Thu, 26 Mar 2026 14:12:30 +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=RQXU1d7G5JQ/kya7sf5dGLhD7hU5QQ3JDWTSlEnIg9M=; b=EpFBBjGwRZ0IwXcRWNDCaa7oXP 4nHcFbTcKxSFILiyHoCN+q5h+6N4YZrhaS3l9pOp+VSCagj96akOHj4duY5yDvmJo4G0mcPH3ANyO CBUhJyYiTMKXI3rbPmy0Yi7gwvXkwzdoL1fjgdjfRsbMmSAO0CPJk+7rGsAMTlqVRwDmtfLeq4RLi AB+FZXHj913T13XXlc75rC0isrYJn43P/LVtlt97pL0DCt6mFYA+Htnb4b16F0PBB5vAUPyXvsCfN kGrxn0CefvVY0hn5jnRBbGkT0NxLrJM1IMomRJDFZ1DikLwjXqqq7GyjRVKPiwRJOIZ05fAjD2w+n UcZAgsAw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5lRg-00000005cBX-0S45; Thu, 26 Mar 2026 14:12:24 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5lRe-00000005cAy-3SPQ for linux-arm-kernel@lists.infradead.org; Thu, 26 Mar 2026 14:12:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id DDE58600AD; Thu, 26 Mar 2026 14:12:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33508C19423; Thu, 26 Mar 2026 14:12:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774534341; bh=VtAN8m1onSTBcLOzCI47xsDgjal03lRFmBJx3s07OL0=; h=From:To:Cc:Subject:Date:From; b=hbRbaVHnroVnSPV1vbTumNRF3iFriuolYE6pFkmoLlSGEFNZLF9HQfvJTBCtEiav7 T8jzVbh+pCw17TZ0YWec7/CE0qiJViV2TXIv9R9XdpZ/6baORUpwxQoLZoniwuBu30 cP7OCwijTJJYhV78gtnOWbSZxTSWeclwe0o6oflSko03G9zXBX5GtI2fZ9svYr995H mOfpaQuNZMotV+WKE2bC5fuJVIYCHXfBrRSjhs39sWQeSsL5twzbmHWKGwAxHg1lxb y1lsn0hXMi8jjXk8W/xXoIB6IMhBWVPzt0aq/cnaieZAzmsUgz3IsBgm3vscHT20Ec B32lvMrlL6B1g== 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 v3 0/3] KVM: arm64: Fix SPE and TRBE nVHE world switch Date: Thu, 26 Mar 2026 14:12:10 +0000 Message-ID: <20260326141214.18990-1-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, Here is version three of the SPE/TRBE fixes I previously posted here: v1: https://lore.kernel.org/r/20260216130959.19317-1-will@kernel.org v2: https://lore.kernel.org/r/20260227212136.7660-1-will@kernel.org Changes since v2 include: * Simplified the TRBE drain check logic * Added R-b / T-b tags * Rebased onto -rc4 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, 94 insertions(+), 26 deletions(-) -- 2.53.0.1018.g2bb0e51243-goog