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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E97EAC43334 for ; Thu, 30 Jun 2022 07:14:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232262AbiF3HOs (ORCPT ); Thu, 30 Jun 2022 03:14:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231686AbiF3HOq (ORCPT ); Thu, 30 Jun 2022 03:14:46 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 841081A065 for ; Thu, 30 Jun 2022 00:14:45 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 3549C1F910; Thu, 30 Jun 2022 07:14:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1656573284; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=w8JobtSvpzNoUpwJIImS2sf/s9H6qdugYtbCVXRzcT0=; b=JFb6EH83ripqdvoD961Q5CiVgMh8sDno1KZ5b6pIW5+KAGWd8xoxWWwBT1Of6BlatnmRl4 vBiV4qmXv1K8NCPocoxFmfwWwn7DfVydWr2H4jUJLimfFQt4AVBxKY1VELUuG0TTjmjfD0 oTfF+bbPZeE2ZmvbSfI4g1OX4OExjtY= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id CC6F913A5C; Thu, 30 Jun 2022 07:14:43 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id C4qFMGNNvWKvKgAAMHmgww (envelope-from ); Thu, 30 Jun 2022 07:14:43 +0000 From: Juergen Gross To: xen-devel@lists.xenproject.org, x86@kernel.org, linux-kernel@vger.kernel.org Cc: jpoimboe@kernel.org, Juergen Gross , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Boris Ostrovsky Subject: [PATCH v3 0/3] x86: fix brk area initialization Date: Thu, 30 Jun 2022 09:14:38 +0200 Message-Id: <20220630071441.28576-1-jgross@suse.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The brk area needs to be zeroed initially, like the .bss section. At the same time its memory should be covered by the ELF program headers. Juergen Gross (3): x86/xen: use clear_bss() for Xen PV guests x86: clear .brk area at early boot x86: fix .brk attribute in linker script arch/x86/include/asm/setup.h | 3 +++ arch/x86/kernel/head64.c | 4 +++- arch/x86/kernel/vmlinux.lds.S | 2 +- arch/x86/xen/enlighten_pv.c | 8 ++++++-- arch/x86/xen/xen-head.S | 10 +--------- 5 files changed, 14 insertions(+), 13 deletions(-) -- 2.35.3