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 CA2E4C433F5 for ; Mon, 3 Oct 2022 10:39:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229700AbiJCKjA (ORCPT ); Mon, 3 Oct 2022 06:39:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229729AbiJCKiy (ORCPT ); Mon, 3 Oct 2022 06:38:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99AFF3FEEB for ; Mon, 3 Oct 2022 03:38:53 -0700 (PDT) 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 1E10C61030 for ; Mon, 3 Oct 2022 10:38:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33EABC433C1; Mon, 3 Oct 2022 10:38:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664793532; bh=Wb5QlCQoIluCSve+kPlO0WTb8M6wqUHapBeGAV6z1uE=; h=From:To:Cc:Subject:Date:From; b=phnvPVGFboLC5HzqCpDPnTuFsS12xHr9qtLxkOWEvZTu3vcr+agYAGQlSmQoYxkLg oDNJI8rnRDDttB4nHGWUg+5QMhzc30gnKDqPWT3hdU6sCWGNAwEw4+EKC5LhjM3kts Hjfo73Val8taCpK2rJiICeq3sZxDygN0qYMTdG0kKA7Y41QSdZYRkZ3LH/NZlDegE2 3JhmPSzfhxSfGowBGJ4N4gx9dKjCrrCzsnQQfjim0dI91WcYtDpbtmKLT4MsMRg+86 zDo7rPxQaLCwCP0dX3VpOXRmGuBNIE73elot4s0Mtb1yfJGpr6t6baaRJl/Y2KYSBz RIHAgP9oslN6Q== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 0/4] riscv: entry: further clean up and VMAP_STACK fix Date: Mon, 3 Oct 2022 18:29:17 +0800 Message-Id: <20221003102921.3973-1-jszhang@kernel.org> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I planed to do similar generic entry transaction as Guo Ren did[1], and I had some commits in local. Since Guo has sent out the series, I dropped my version and just provide those in my local repo but missing in Guo's series. However, this doesn't mean this series depends on Guo's series, in fact except the first one, the remaining three patches are independent on generic entry. Since v2: - the patch of removing wrappers of trace_hardirqs_{on,off} is in Guo's v6 generic entry series[2], so remove it. - add a new patch to fix kernel info leakage. - collect Acked-by tag. - the GP saving and restoring macros range from x5 to x31 now per Guo's suggestion. Since v1: - consolidate gp saving/restoring in mcount-dyn.S as well - avoid non-trival memory waste if NR_CPUs is large - collect Reviewed-by tag. [1]https://lore.kernel.org/linux-riscv/20220918155246.1203293-1-guoren@kernel.org/T/#t [2]https://lore.kernel.org/linux-riscv/20221002012451.2351127-1-guoren@kernel.org/T/#t Jisheng Zhang (4): riscv: process: fix kernel info leakage riscv: consolidate ret_from_kernel_thread into ret_from_fork riscv: fix race when vmap stack overflow and remove shadow_stack riscv: entry: consolidate general regs saving/restoring arch/riscv/include/asm/asm-prototypes.h | 1 - arch/riscv/include/asm/asm.h | 63 ++++++++++ arch/riscv/include/asm/thread_info.h | 3 - arch/riscv/kernel/asm-offsets.c | 1 + arch/riscv/kernel/entry.S | 151 +++--------------------- arch/riscv/kernel/mcount-dyn.S | 56 +-------- arch/riscv/kernel/process.c | 7 +- arch/riscv/kernel/traps.c | 32 ++--- 8 files changed, 103 insertions(+), 211 deletions(-) -- 2.37.2