From patchwork Fri Aug 19 02:54:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 12948248 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 78888C25B0E for ; Fri, 19 Aug 2022 02:55:20 +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=TjrWfnUuixU99Z0q6T29Qpfv+Ixt/EAbmBk/hETT+Oo=; b=YjaBN+Y7DgcXAN YcIw5ao95iJnwWt86Oe7CyV5BHHmPYFLVH82+8G/vBeCodlEloZYn1xzagg87Y+BhZh8nqUK3RHsA RkM1ilaZ7iUz4BEu87UURQcMsfpvQJXTmc84eUErLpVNxkyXC91t5hu/RTwrZQRhrcCl9oSP3SyTL C1/2IYUdhhphK711qurO3dC3ao2gOINl2MOyOZmYrZu2YZ2Jt/YKk3ChtJoLTuIgdaSfJGXWDcF/E 4RmB+04jtJx/1/a5c0taa8eeababJ93XiPGjQIYhtqB5Uif/2eO5IayB09GBgcIf4r2rAZDDz1T0t NqzgJYLNfLUSZGAGceOg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oOsA3-00F6mX-3d; Fri, 19 Aug 2022 02:55:03 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oOs9z-00F6e8-Qb for linux-riscv@lists.infradead.org; Fri, 19 Aug 2022 02:55:01 +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 ams.source.kernel.org (Postfix) with ESMTPS id 3F5AEB8255B; Fri, 19 Aug 2022 02:54:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EACEFC433D6; Fri, 19 Aug 2022 02:54:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660877695; bh=MWB0MHyVat//RCNcc5nnre2niTbT73AZeuEoxZb/j5I=; h=From:To:Cc:Subject:Date:From; b=toZYXqMaVqIO8OTDDRJtnrrNomIuEAiPS86Hrmo94FdHsZSV8tTL9aTemldPAceix iZ3BUhvzmkSYGcSvGqTN/78PwcPPzY0CDt76g+N4jyRqoLAqQByoQaQtmfR0CGzFs0 /ADmlXcN03Gv5aQ7JHE0bzN/zEnF2UAbJE4zg5iN4a4r8NQR6/tx+n39mdJAl/2FKv 80TWYqEt70t/MqIXpimdZtdZqRHPyE2LwrlBHPizEF77xmxsz1EdcX3gHMp4EaK41z lkNsXKQNpd9QCPEd2yJzg5v40ayZPQEES9o+1wmybFR6obzkpFXu1FKKRX2Q+3OIwd PgFeELRDYZoKQ== From: guoren@kernel.org To: xianting.tian@linux.alibaba.com, palmer@dabbelt.com, heiko@sntech.de, guoren@kernel.org, conor.dooley@microchip.com Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, liaochang1@huawei.com, mick@ics.forth.gr, jszhang@kernel.org, Guo Ren Subject: [PATCH V3 0/3] riscv: kexec: Fixup crash_save percpu and machine_kexec_mask_interrupts Date: Thu, 18 Aug 2022 22:54:41 -0400 Message-Id: <20220819025444.2121315-1-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220818_195500_045510_93BBF836 X-CRM114-Status: UNSURE ( 8.06 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Guo Ren Current riscv kexec can't crash_save percpu states and disable interrupts properly. The patch series fix them, make kexec work correct. Also cleanup arm64, x86 declarations in asm/smp.h. Changlogs: v2: https://lore.kernel.org/linux-riscv/20220817161258.748836-1-guoren@kernel.org/ v1: https://lore.kernel.org/linux-riscv/20220816012701.561435-1-guoren@kernel.org/ Changes in v3: - Fixup compile problem with !SMP, which reported by lkp@intel.com - Cleanup declarations in asm/smp.h - Add reviewed-by Changes in v2: - Add Fixes tags - Remove extern from bool smp_crash_stop_failed(void) Guo Ren (3): riscv: kexec: Disable all interrupts in kexec crash path riscv: kexec: Fixup crash_smp_send_stop with percpu crash_save_cpu arch: crash: Remove duplicate declaration in smp.h arch/arm64/include/asm/smp.h | 1 - arch/riscv/include/asm/smp.h | 3 ++ arch/riscv/kernel/machine_kexec.c | 46 ++++++++++++---- arch/riscv/kernel/smp.c | 89 ++++++++++++++++++++++++++++++- arch/x86/include/asm/crash.h | 1 - 5 files changed, 125 insertions(+), 15 deletions(-)