From patchwork Tue Oct 15 08:25:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Frediano Ziglio X-Patchwork-Id: 13835853 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 D6189CFC274 for ; Tue, 15 Oct 2024 08:26:02 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.819030.1232332 (Exim 4.92) (envelope-from ) id 1t0crz-0003tC-O6; Tue, 15 Oct 2024 08:25:31 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 819030.1232332; Tue, 15 Oct 2024 08:25:31 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t0crz-0003t5-L6; Tue, 15 Oct 2024 08:25:31 +0000 Received: by outflank-mailman (input) for mailman id 819030; Tue, 15 Oct 2024 08:25:30 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t0cry-0003el-B2 for xen-devel@lists.xenproject.org; Tue, 15 Oct 2024 08:25:30 +0000 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [2a00:1450:4864:20::634]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 06d61194-8acf-11ef-99a2-01e77a169b0f; Tue, 15 Oct 2024 10:25:25 +0200 (CEST) Received: by mail-ej1-x634.google.com with SMTP id a640c23a62f3a-a99e3b3a411so466614266b.0 for ; Tue, 15 Oct 2024 01:25:25 -0700 (PDT) Received: from fziglio-desktop.. ([185.25.67.249]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9a29749663sm41590566b.64.2024.10.15.01.25.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Oct 2024 01:25:24 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 06d61194-8acf-11ef-99a2-01e77a169b0f DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloud.com; s=cloud; t=1728980724; x=1729585524; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Qkb2FwdmNFA27HJZq+hvWg6nvn+M86auMXi8pWNoFV8=; b=C9scrtoGjYCCObYOmvM4EqgpCI9Vg9AJsSBO5Ohtn4J+7kW5Sq6HXHLlglEyxARMO8 3zLcl5rm+jy/u0dTyal/kFR9O2RttxZfrswPpl6wBXxvruu0A0vmLfBK1MWU2Fqf9X9E o0u+zD1uRR1atZBqaSQ+CiWFDOuXMdDb9dVbI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728980724; x=1729585524; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Qkb2FwdmNFA27HJZq+hvWg6nvn+M86auMXi8pWNoFV8=; b=jEpUxz9XF+LQckA8mLycoC8zh5PCeMlJzSsM+LQYQqUain8BakgSPaKVTGP1WMsGeX KAkdAEO+L/vHICB1NxapAKHjWyfp4pKCAZt1JCQQpX7rCRg0ZFQYhsm3wH5RKcBtb/Pr 9sbv8XuEYXurJQ3GYrJ3/t7ccddI/l8wP7GHWg5GJOd3RxdLr2hNtr55z6nmvtBoU2Hd DI+0HdqhK5NqFf7nCOOQgUqtF1ZIwUzmjnUTPn0Qbsb6CJliLtzxaNf+bSgzaij2whNf WPG8ibLgpkL5N1bv1v+a1RoLtHbrHW1XvUVpTlfnkMfGg1RaulvVtrUbMj6UIg5CEIV+ LsSg== X-Gm-Message-State: AOJu0YwQE1eI1q+JbxHeaYcYH+XjMvtJyNPjJ7gflkSQkul346tDUuR7 9iOUSvdOkp+3YOi+BsOgPNr6/go/SoYSN0xQ0QFB5CTXKjcS+YzNULBzJlgcOor8LccxCCN0IG2 f X-Google-Smtp-Source: AGHT+IGaBW/SgOot01Ss7xVwubLfZCvl/2HPfjfne1MHDIx1jfLcYeB/mLhlDuMsr9Yp8Vw9S07uSg== X-Received: by 2002:a17:907:97c1:b0:a91:158b:1c23 with SMTP id a640c23a62f3a-a99b87f3669mr1131596166b.9.1728980724515; Tue, 15 Oct 2024 01:25:24 -0700 (PDT) From: Frediano Ziglio To: xen-devel@lists.xenproject.org Cc: Frediano Ziglio , "Daniel P. Smith" , =?utf-8?q?Marek_Marczykow?= =?utf-8?q?ski-G=C3=B3recki?= , Jan Beulich , Andrew Cooper , =?utf-8?q?Roger_Pau_Monn=C3=A9?= Subject: [PATCH v10 0/2] x86/boot: Improve MBI2 structure check (was: Reduce assembly code) Date: Tue, 15 Oct 2024 09:25:11 +0100 Message-Id: <20241015082513.2477806-1-frediano.ziglio@cloud.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 This series came from part of the work of removing duplications between boot code and rewriting part of code from assembly to C. Changes since v1, more details in specific commits: - style updates; - comments and descriptions improvements; - other improvements. Changes since v2: - rebased on master, resolved conflicts; - add comment on trampoline section. Changes since v3: - changed new function name; - declare efi_multiboot2 in a separate header; - distinguish entry point from using magic number; - other minor changes (see commens in commits). Changes since v4: - rebase on staging; - set %fs and %gs as other segment registers; - style and other changes. Changes since v5: - fixed a typo. Changes since v6: - remove merged patch; - comment and style; - change some pointer checks to avoid overflows; - rename parse-mbi2.c to mbi2.c. Changes since v7: - removed merged parts; - add required stack alignment. Changes since v8: - added "Fixes:" line; - typo in commit message: Adler -> Alder; - add ".init" to mbi2.o; - reduce difference in Makefile. Changes since v9: - minor messages updates. Frediano Ziglio (2): x86/boot: Align mbi2.c stack to 16 bytes x86/boot: Improve MBI2 structure check xen/arch/x86/efi/Makefile | 4 ++-- xen/arch/x86/efi/mbi2.c | 7 +++++-- 2 files changed, 7 insertions(+), 4 deletions(-) Acked-by: Marek Marczykowski-Górecki