From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 329C53630AE for ; Fri, 21 Aug 2026 16:18:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787329116; cv=none; b=Ib5NrAUpKiFyOSM1xIYANviBVXaITexsifeHTZGfvRMCcNP6eCbyl4EqZIVZi+0Kldd5clOk5NPa4lEMg8ftuLw6tCWiXyZzEZ03OpjyqdNkdbEdu5PZdI/KwTv40xen356WUKJ3bcnjMeW88+kHVzhaNM7W0Kxg7c++kS7qh6Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787329116; c=relaxed/simple; bh=7GbSPrY7KihDMgo8ewA/GI6j+khnco4/sk2wzONAJL4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=bVi70ZzXdU3ZiIJvY1KFkkeWIFsJZH3AIn+s820c9PqJUxRcJchZ9maDzYYqg2o8zoHeSHtt+m1Vgm5LkHRkpsdk5yrPLD54XXID3zcekfHa6rP/2Xh2dvYXwvhAUJ93rDEhGbDmfqMtS2inyA2Zv8EReFodoFtl5M7RyWsTieg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nleCJikt; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nleCJikt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB0CD1F000E9; Fri, 21 Aug 2026 16:18:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787329114; bh=MFdz8NPU5/wMJeL/vsXxp5eUFzRpWg8luiFq5DUlWyE=; h=From:To:Cc:Subject:Date; b=nleCJiktGqkqWtl23fu+RcGzfsMl6d7jrzCbnMJLx/lk38ApmF7vmtjFmfcyzf1RR KDo6E0kSi4iCrBHUTfU7kN2k57AUNtD1d7nNTcaa7fOAjIyGxLE8gg84Fx6EnVjBpZ IENHx3ord8GlXVxl40/u0mU5OmiNxYp9jkLm86sB2pwQhAb3Ol8HtIS0+3KJzeTRPe /+oKnauFY+qVG9sF2S61KCqQBBLnBdyZ/jg0NUzgoG9Ij63CZrMcATTQXJI/y2HAYM AcJvo4Sv9ALkTHF6Teyoteu4agOYnxyrz/5duftKjKSGef4h6+Vv8KmYIG6KxAGUk6 V9yM8pTkYqd0w== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wxRwu-000000006fx-1M56; Fri, 21 Aug 2026 16:18:32 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: Steffen Eiden , Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Fuad Tabba , ljs@kernel.org, Shen Yongchao , Karl Mehltretter , Wei-Lin Chang Subject: [PATCH v3 0/2] KVM: arm64: nv: Shadow S2 life-cycle fixes Date: Fri, 21 Aug 2026 17:18:27 +0100 Message-ID: <20260821161829.1032561-1-maz@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 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, seiden@linux.ibm.com, joey.gouly@arm.com, suzuki.poulose@arm.com, oupton@kernel.org, yuzenghui@huawei.com, fuad.tabba@linux.dev, ljs@kernel.org, grayhat@foxmail.com, kmehltretter@gmail.com, weilin.chang@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false This is the (hopefully) last revision for this set of fixes for the shadow S2 life cycle. * From v2 [1] - Fixed the nonsensical type used for allocating the nested S2 array, switching to kvmalloc_objs() in the process, guaranteeing some level of type checking - Dropped the extra S2 freeing after Wei-Lin pointed out that we are guaranteed to run the MMU notifier release callback, ensuring that nothing is left behind - Collected AB from Lorenzo, with thanks. [1] https://lore.kernel.org/all/20260814103230.858578-1-maz@kernel.org/ Marc Zyngier (2): KVM: arm64: nv: Fix life cycle of the nested_mmus array KVM: arm64: nv: Delay freeing of shadow S2 structures until VM destruction arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_nested.h | 3 +- arch/arm64/kvm/arm.c | 8 ++- arch/arm64/kvm/nested.c | 100 ++++++++++++++-------------- 4 files changed, 58 insertions(+), 55 deletions(-) -- 2.47.3