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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 CD8B1C6FD18 for ; Tue, 18 Apr 2023 14:37:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Ch4OhfSE51LmuyfOOVK/pAc8T7HhjjWP4QGGEu1ZlY4=; b=P/mVqo6laycmtd 71s4j7sr050XLlW6n8A+L20jM16tQYEg24gFnrkoNzz70GDT8Y722MorvawuHnkZ/mixhkShE9sbc nwaqOTOMl50mj3AA2CsqSflYqCym9WtUAXpW5zYtOonL0FNaoQSZFpS19r+xDEgBN7Oyu79cEJZbK tJhjZmvSQd/2oqX+drATFIUZSHvTRQ247DBdxdjWbgStGEKeMloIi8WTYBmg7SguAClJRvgj2HUu6 6WP4dp59+EJCGq2bADFzOze1wMKNpb9w6cMKQLcZwnXflqFqnCM+g9fQdNRV4TZp+2+urjX41ItPJ wY+ElsBULxjxeNL6K/ew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pomRQ-002SZf-06; Tue, 18 Apr 2023 14:36:20 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pomRO-002SYp-08 for linux-arm-kernel@lists.infradead.org; Tue, 18 Apr 2023 14:36:19 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1298C634D4; Tue, 18 Apr 2023 14:36:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D36AC433D2; Tue, 18 Apr 2023 14:36:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681828576; bh=Ij81EriWsrcx1O2Wrfotfr6+wb6H6kiE7SXA2soSabY=; h=From:To:Cc:Subject:Date:From; b=UYM7eZKuuk+a0sIff7D2rSP0ya4AY3mQ8GEbWD16IILFYdTRoAi5tSUNoWhlFbqdv paGkIybUv+OML5b2KZds8gZon5pgNewFntz6d6FYvAdMkhqLfUl+K9mNixwj++rgML wOzpzqwpS/8IaRa+Rt5EiMfHBshtyb2kjMoAq7dv/OXofMtMcjV6Z+nkmBKTTXsRCJ j54N4mg/E0oL1kIWnQmwqbadb00cs/fHPptVZtyFh4X40/S/pRYgabXvXSZC4wJjnO tH63n3yUkqFcn9ybl0mRzk+1KD+iNHVS3DDaBrV243wSa9vQguzHOCCO3rOQcROuWR Nc2luFpjDbZLw== From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, maz@kernel.org, Ard Biesheuvel Subject: [PATCH v2 0/2] arm64: entry: Simplify KPTI trampoline exit code Date: Tue, 18 Apr 2023 16:36:02 +0200 Message-Id: <20230418143604.1176437-1-ardb@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=395; i=ardb@kernel.org; h=from:subject; bh=Ij81EriWsrcx1O2Wrfotfr6+wb6H6kiE7SXA2soSabY=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIcVu1cVso32pc9/ldwfLXhXK5jBu8jD4Uzh957Zt9pu8y 4/yNIh1lLIwiHEwyIopsgjM/vtu5+mJUrXOs2Rh5rAygQxh4OIUgIm4GDMy3OuLntvMZKFi+v/s YYt+hebMRx80j97Yd2bjoa1f/U1FtRkZNr5vtSl78cp1SX6U4+p0pb8OC7PmTPeO5X17K2TzAaf zTAA= X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230418_073618_136124_68F658F4 X-CRM114-Status: UNSURE ( 8.63 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Changes since v1: - add a separate patch that merges the native and compat code paths - improve commit log on patch #2 Ard Biesheuvel (2): arm64: entry: Preserve/restore X29 even for compat tasks arm64: entry: Simplify tramp_alias macro and tramp_exit routine arch/arm64/kernel/entry.S | 57 +++++++------------- 1 file changed, 20 insertions(+), 37 deletions(-) -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel