From nobody Tue Feb 10 18:36:47 2026 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 D78EDC7619A for ; Wed, 12 Apr 2023 18:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230129AbjDLSpV (ORCPT ); Wed, 12 Apr 2023 14:45:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229982AbjDLSpM (ORCPT ); Wed, 12 Apr 2023 14:45:12 -0400 Received: from mail-oa1-x33.google.com (mail-oa1-x33.google.com [IPv6:2001:4860:4864:20::33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F45740F2 for ; Wed, 12 Apr 2023 11:45:11 -0700 (PDT) Received: by mail-oa1-x33.google.com with SMTP id 586e51a60fabf-1842e8a8825so14801824fac.13 for ; Wed, 12 Apr 2023 11:45:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681325110; x=1683917110; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RI1QKnyB9mb6UAnZmBnXQzU2ONFlsltTDGtKyyUD28o=; b=OYyMovplh1Vk8gmeTpVI2bCmkYXiwH5ziby48r9n0AvhtcqaTm8fO/ndGn4OpgUHDb 6sTNMGcYtsDrpzbMk+juJap0e2YXhwAdgK30G8fhDrq+Ua+541vkhpWMvJHXn7Gq+oC+ rGjlZIy1jH9isHXk2Fv/ojCUXjV5VDmUNwGHAUpupqPOCMfGdAiJaYGOpYmHFQzskV6d s91+npBXcNNXBiEscdIykjowHr4UHgXPLO0iXt1CbtMx65AsAluR+ebGxIQ41ntIvd7S RywhwBrf2n8a0QgD3NKT7NF4U/MzMB9oViG0bjhmJveAiY6lFhFLMl3bNKeLqi1BACJk shDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681325110; x=1683917110; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RI1QKnyB9mb6UAnZmBnXQzU2ONFlsltTDGtKyyUD28o=; b=MT8dJvcmpthqEIzN0Godw9KEBhcAQWkgmavPz3PQcPXuzxabTysoMbx0/8gAs63xej yP/6qM+AMMSYt2ENQSmjZi9vLrigMHAUBxRBvX35gMM7Iw8o0ejlZtKniR3p4uiG9Dsi qRRhYApHZ1vRHPD/YG13yROJPj31ndn7aHF6plnl9W2e2k0GFdc+U5tsa4v/GYQre4v5 FCVvGrLbbbG0YTJXnPyP/pbtIV52YTevy/n5fWZY3Fz9rhILshiunDsw7DeJK0SLYbRf QhAmQoJr00oFc5YdRPcjSj46fB6uQa93KBvT2AjruwbG9Xs4gSKk5DTCe+owWWHGOAfm 2FLw== X-Gm-Message-State: AAQBX9eRO/98huTdnN2f/zAtAQYd89DzdaGqo1eBLyRv2GfVMJMTtlgN uQPYCzQs556VysY8VlMHSIZaT0DrcA== X-Google-Smtp-Source: AKy350YX8yN8Syqj1ygwYeBSrMgOAmJalJlrS06q44scCicfTaqUNcvX+RlfVNhHq8rFZRD0VYisPg== X-Received: by 2002:a05:6870:40cc:b0:177:b9d3:c028 with SMTP id l12-20020a05687040cc00b00177b9d3c028mr7724458oal.12.1681325110388; Wed, 12 Apr 2023 11:45:10 -0700 (PDT) Received: from citadel.. (075-129-116-198.res.spectrum.com. [75.129.116.198]) by smtp.gmail.com with ESMTPSA id w24-20020a9d77d8000000b00690e990e61asm6706020otl.14.2023.04.12.11.45.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 11:45:10 -0700 (PDT) From: Brian Gerst To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Thomas Gleixner , Borislav Petkov , "H . Peter Anvin" , Peter Zijlstra , Ingo Molnar , Brian Gerst Subject: [PATCH v2 1/6] x86/boot: Move sanitize_boot_params() Date: Wed, 12 Apr 2023 14:44:57 -0400 Message-Id: <20230412184502.145289-2-brgerst@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230412184502.145289-1-brgerst@gmail.com> References: <20230412184502.145289-1-brgerst@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" sanitize_boot_params() contains a static table that would need to be addressed in a PIC manner if it were executed early in the boot process while using the identity-mapped page tables. Separate it from copy_bootdata(). Signed-off-by: Brian Gerst --- arch/x86/kernel/head64.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 387e4b12e823..4a3b195c9002 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -455,7 +455,6 @@ static void __init copy_bootdata(char *real_mode_data) sme_map_bootdata(real_mode_data); =20 memcpy(&boot_params, real_mode_data, sizeof(boot_params)); - sanitize_boot_params(&boot_params); cmd_line_ptr =3D get_cmd_line_ptr(); if (cmd_line_ptr) { command_line =3D __va(cmd_line_ptr); @@ -543,6 +542,8 @@ void __init x86_64_start_reservations(char *real_mode_d= ata) if (!boot_params.hdr.version) copy_bootdata(__va(real_mode_data)); =20 + sanitize_boot_params(&boot_params); + x86_early_init_platform_quirks(); =20 switch (boot_params.hdr.hardware_subarch) { --=20 2.39.2