From patchwork Wed Feb 21 16:26:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13565947 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 EF0F3C5478A for ; Wed, 21 Feb 2024 16:27:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rcpQm-0007Mx-JN; Wed, 21 Feb 2024 11:26:48 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rcpQk-0007LW-22 for qemu-devel@nongnu.org; Wed, 21 Feb 2024 11:26:47 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rcpQi-0008C6-9B for qemu-devel@nongnu.org; Wed, 21 Feb 2024 11:26:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1708532802; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=ljwIyYpQK02meb9bEw/ZI8Rn2tnQIotIw3Gx9JYmh0s=; b=Q/K2SyFMurxRzeJ6BJKSSXtUDdtBiKpm592PYM0ZlaA3XEDXX7/XIuSUUC1jkEhprMJ0QG 2rGW8DONodAyZ0Wd81SJ/wCvcytqJUnK2vQy3Ab66Lqx4a4dEf/93PLh9pX1MTjM0w4a/V 1aWh80k8K3R4WubtCl63sTxxocfkPb0= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-455-gq90FChoNRq8n-x80QAtWg-1; Wed, 21 Feb 2024 11:26:40 -0500 X-MC-Unique: gq90FChoNRq8n-x80QAtWg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BBA4B1C0BB69; Wed, 21 Feb 2024 16:26:39 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.194.110]) by smtp.corp.redhat.com (Postfix) with ESMTP id 45B6F2015B7E; Wed, 21 Feb 2024 16:26:37 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell Cc: qemu-ppc@nongnu.org, =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Nicholas Piggin , Daniel Henrique Barboza , =?utf-8?q?C=C3=A9dric_Le_G?= =?utf-8?q?oater?= Subject: [PATCH 0/3] Replace variable length arrays in ppc KVM code Date: Wed, 21 Feb 2024 17:26:33 +0100 Message-ID: <20240221162636.173136-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.05, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org It would be good to enable -Wvla as an additional security feature when compiling QEMU (see also Peter's explanation here: https://lore.kernel.org/qemu-devel/20240125173211.1786196-1-peter.maydell@linaro.org/ ). There are currently only two spots with variable lengths arrays left, so if we fix those, we can finally enable the -Wvla compiler switch. Peter Maydell (1): meson: Enable -Wvla Thomas Huth (2): target/ppc/kvm: Replace variable length array in kvmppc_save_htab() target/ppc/kvm: Replace variable length array in kvmppc_read_hptes() meson.build | 1 + target/ppc/kvm.c | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-)