From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753272AbbJYKtO (ORCPT ); Sun, 25 Oct 2015 06:49:14 -0400 Received: from mail-wi0-f177.google.com ([209.85.212.177]:33166 "EHLO mail-wi0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753240AbbJYKtJ (ORCPT ); Sun, 25 Oct 2015 06:49:09 -0400 From: Matt Fleming To: Ingo Molnar , Thomas Gleixner , "H . Peter Anvin" Cc: Matt Fleming , linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, Borislav Petkov , Dave Hansen , Glenn P Williamson , Ravi Shankar , Ricardo Neri , Sai Praneeth Prakhya Subject: [GIT PULL] EFI changes for v4.4 Date: Sun, 25 Oct 2015 10:49:03 +0000 Message-Id: <1445770144-22280-1-git-send-email-matt@codeblueprint.co.uk> X-Mailer: git-send-email 2.6.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Folks, please pull the following bugfix from Sai which prevents a kernel panic when booting an EFI machine with CONFIG_DEBUG_VIRTUAL enabled. This bug was reported last year by Dave Hansen, https://lkml.kernel.org/r/5462999A.7090706@intel.com and since nobody else has reported it, and given that it's only triggerable with a debug config option, I figured this should be targeted at v4.4. The following changes since commit 0f96a99dab366333439e110d6ad253bc7c557c09: efi: Add "efi_fake_mem" boot option (2015-10-12 14:20:09 +0100) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-next for you to fetch changes up to 2c66e24d75d424919c42288b418d2e593fa818b1: x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled (2015-10-25 10:22:25 +0000) ---------------------------------------------------------------- * Fix a kernel panic by not passing EFI virtual mapping addresses to __pa() in the x86 pageattr code. Since these virtual addreses are not part of the direct mapping or kernel text mapping, passing them to __pa() will trigger a BUG_ON() when CONFIG_DEBUG_VIRTUAL is enabled - Sai Praneeth Prakhya ---------------------------------------------------------------- Sai Praneeth (1): x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled arch/x86/mm/pageattr.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)