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 X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2344C47409 for ; Sat, 14 Dec 2019 10:09:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B75B224671 for ; Sat, 14 Dec 2019 10:09:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="hCx6Hcds" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726072AbfLNKHO (ORCPT ); Sat, 14 Dec 2019 05:07:14 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:48406 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725862AbfLNKHN (ORCPT ); Sat, 14 Dec 2019 05:07:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576318032; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=M7DjxLpVUDmrMfYFPEAv8TSiRH6FhuBM4F+xzNTmV2w=; b=hCx6HcdsyaTF800VQphvj+AUcMTp4ViJCe58rsIxOwWoAOfiZA0v0M2bLjHWYyMuecSCWh TPrP9g1DH1DjgLqsxoGKQfB9ZziLoiG0/INljDcejR2O6qQRu7daTvd2Ij/m5RCHBZZLs7 G8ieVIT9HA/5c8FWYoLMR+qQw4rZRFo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-143-VQmF1x_SMJafxx7yLz7sDg-1; Sat, 14 Dec 2019 05:07:08 -0500 X-MC-Unique: VQmF1x_SMJafxx7yLz7sDg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7E5761005512; Sat, 14 Dec 2019 10:07:06 +0000 (UTC) Received: from localhost (ovpn-12-17.pek2.redhat.com [10.72.12.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 37CB219C4F; Sat, 14 Dec 2019 10:07:02 +0000 (UTC) Date: Sat, 14 Dec 2019 18:07:00 +0800 From: Baoquan He To: Borislav Petkov , Masayoshi Mizuma Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Masayoshi Mizuma , linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 4/4] x86/mm/KASLR: Adjust the padding size for the direct mapping. Message-ID: <20191214100700.GK28917@MiWiFi-R3L-srv> References: <20191115144917.28469-1-msys.mizuma@gmail.com> <20191115144917.28469-5-msys.mizuma@gmail.com> <20191212201916.GL4991@zn.tnic> <20191213132850.GG28917@MiWiFi-R3L-srv> <20191213141543.GA25899@zn.tnic> <20191213145448.GH28917@MiWiFi-R3L-srv> <20191213163818.GB25899@zn.tnic> <20191213232928.GI28917@MiWiFi-R3L-srv> <20191214071329.GA28635@zn.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191214071329.GA28635@zn.tnic> User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/14/19 at 08:13am, Borislav Petkov wrote: > On Sat, Dec 14, 2019 at 07:29:28AM +0800, Baoquan He wrote: > > OK, you mean parsing SRAT again before kernel_randomize_memory(). I > > think this is what Masa made this patchset to avoid. Then we will have > > three times SRAT parsing. > > Can the SRAT parsing be *moved* up so that it is done before > kernel_randomize_memory() ? > > So that it doesn't happen 3 times and acpi_numa_init() can simply use > the already parsed results. Not very sure, It could be doable. Maybe Masa can have a try.