From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936053AbcKKSNk (ORCPT ); Fri, 11 Nov 2016 13:13:40 -0500 Received: from aserp1050.oracle.com ([141.146.126.70]:51111 "EHLO aserp1050.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756920AbcKKSN3 (ORCPT ); Fri, 11 Nov 2016 13:13:29 -0500 From: Vijay Kumar To: davem@davemloft.net, sparclinux@vger.kernel.org Cc: karl.volz@oracle.com, rob.gardner@oracle.com, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/4] sparc64: Jump to boot prom from console on panic Date: Fri, 11 Nov 2016 10:11:55 -0800 Message-Id: <1478887919-10361-1-git-send-email-vijay.ac.kumar@oracle.com> X-Mailer: git-send-email 1.7.1 X-Source-IP: aserp1040.oracle.com [141.146.126.69] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently Stop-A (L1A) does not make the kernel switch to OBP on panic. This patchset addresses this issue. Also, now we can cause a jump to OBP by sending 'break' twice from sunhv console. On bare metal, one can send a break by typing Esc + 'B' + Sysrq (or whatever). On LDOM, press Ctrl + ] in telnet, and then "send break" at the telnet prompt. sparc64: Set cpu state to offline when stopped sparc64: Migrate hvcons irq to panicked cpu sparc64: Send break twice from console to return to boot prom Documentation/sparc: Steps for sending break on sunhv console Documentation/sparc/console.txt | 9 +++++++++ arch/sparc/include/asm/setup.h | 1 + arch/sparc/kernel/smp_64.c | 9 ++++++++- drivers/tty/serial/sunhv.c | 12 +++++++++++- kernel/panic.c | 3 ++- 5 files changed, 31 insertions(+), 3 deletions(-) create mode 100644 Documentation/sparc/console.txt -- 1.7.1