From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752865AbbFYJ6Y (ORCPT ); Thu, 25 Jun 2015 05:58:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59044 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750777AbbFYJ6L (ORCPT ); Thu, 25 Jun 2015 05:58:11 -0400 From: Vitaly Kuznetsov To: devel@linuxdriverproject.org Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, Eric Biederman , x86@kernel.org, "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , Haiyang Zhang , "K. Y. Srinivasan" , Olaf Hering , Greg KH Subject: [PATCH v3 0/5] Drivers: hv: add kexec support (and fix kdump) Date: Thu, 25 Jun 2015 11:58:01 +0200 Message-Id: <1435226286-24842-1-git-send-email-vkuznets@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes since v2: - Get rid of #ifdefs in mshyperv.c [Olaf Hering, Greg KH] PATCH 2/5 is added to support the change. - Fix (also broken) kdump [K. Y. Srinivasan] PATCH 5/5 added. Changes since v1: - rebased on top of current Greg's char-misc-next tree. To make general-purpose kexec (not just kdump) possible for Hyper-V guests we need to perform some additional cleanup before starting new kernel (see [PATCH 3/5] for the detailed description). Kdump also requires some mandatory cleanup [PATCH 5/5] Know limitations: kexec with balloned out memory is not possible as the newly loaded kernel doesn't know about this memory and there is no way to ask the host to bring all the memory back on cleanup (or at least I'm not aware of such a way). Kexec with hotplugged memory leads to reboot (not exactly sure why). Vitaly Kuznetsov (5): Drivers: hv: vmbus: remove hv_synic_free_cpu() call from hv_synic_cleanup() kexec: define kexec_in_progress in !CONFIG_KEXEC case Drivers: hv: vmbus: add special kexec handler Drivers: hv: don't do hypercalls when hypercall_page is NULL Drivers: hv: vmbus: add special crash handler arch/x86/include/asm/mshyperv.h | 4 ++++ arch/x86/kernel/cpu/mshyperv.c | 46 +++++++++++++++++++++++++++++++++++++++++ drivers/hv/hv.c | 15 +++++++------- drivers/hv/vmbus_drv.c | 29 ++++++++++++++++++++++++++ include/linux/kexec.h | 1 + 5 files changed, 88 insertions(+), 7 deletions(-) -- 2.4.2