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 38438C624D4 for ; Thu, 3 Sep 2026 16:07:02 +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:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=f6VskqS0TvkoY5qNH6DjQiH1hm31yUpNt1ETVOZHcEI=; b=RayQhzCEcHwaM/YhoNRuG9IbE0 NY7w8RVkvddG28zWi9Uk/V/0xo2f/C5yU6GH0cSncQooFLUUmQIkduttqbpzeTqWu6Jrt99S6GOyF fJfmaN/jIiK0vVQQA34G5DEKDGqdz1RUUlD8OO4P1NQpv42wYbzByQgOFiJdzQ+/JqdGaRxgkWijx uOu+9LBL3HVDnb01DBTpWp5KCyQALo6lem7NvDw+soVUyNpTHioIJR6QZnd+mDhq7tQUtuQeQmn5M v5GsGEHo2qz5CXtfK96dyUnKX0fokDapwmmXg11F63D1onj7Y1gyVGyXu0ymwNoBfogXq+osKJgjk 9k66uB3g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x29xn-000000005DZ-4B6y; Thu, 03 Sep 2026 16:06:55 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x29xl-000000005A7-2nZO for linux-arm-kernel@lists.infradead.org; Thu, 03 Sep 2026 16:06:54 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4F85C1650; Thu, 3 Sep 2026 09:06:48 -0700 (PDT) Received: from e140010.cambridge.arm.com (e140010.arm.com [10.2.213.25]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 43FD93F673; Thu, 3 Sep 2026 09:06:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1788451612; bh=ppWn8zxveAr9HnN+Ue1ihaXYa9wTPVehLcQtaWF0KrA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=aetRBJc5PZWQ1UkyNsOnC/mYjjacSfvMMK14/JoLlaOy4Co7lejhoC0cR3grQC8dW WFPaJ2Xmxywb6q7NxVWpVe/jazif4dVGyvcPMjk0hfK9u2b9ZQWy+S2L3QkRSIrT/n lRcS4YPZAF+gEsdwJHBjNZer4RubrtDbbJuaFXy0= From: Alexandru Elisei To: maz@kernel.org, oupton@kernel.org, fuad.tabba@linux.dev, joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, will@kernel.org, mark.rutland@arm.com, linux-perf-users@vger.kernel.org, catalin.marinas@arm.com, james.clark@linaro.org Subject: [RFC PATCH v7 08/28] HACK! KVM: arm64: Disable SPE virtualization if protected KVM is enabled Date: Thu, 3 Sep 2026 17:06:03 +0100 Message-ID: <20260903160623.315525-9-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260903160623.315525-1-alexandru.elisei@arm.com> References: <20260903160623.315525-1-alexandru.elisei@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260903_090653_741989_A127E8CB X-CRM114-Status: UNSURE ( 8.90 ) X-CRM114-Notice: Please train this message. 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 For RFC only. Signed-off-by: Alexandru Elisei --- arch/arm64/kvm/spe.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/kvm/spe.c b/arch/arm64/kvm/spe.c index 646806a60d66..97160d1fae81 100644 --- a/arch/arm64/kvm/spe.c +++ b/arch/arm64/kvm/spe.c @@ -22,6 +22,10 @@ void kvm_spe_add_instance(struct arm_spe_pmu *spe_pmu) { struct spe_pmu_entry *entry; + /* TODO: pKVM support */ + if (is_protected_kvm_enabled()) + return; + guard(mutex)(&spe_pmus_lock); entry = kmalloc(sizeof(*entry), GFP_KERNEL); -- 2.43.0