From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762672AbZEHAO1 (ORCPT ); Thu, 7 May 2009 20:14:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754669AbZEHAKG (ORCPT ); Thu, 7 May 2009 20:10:06 -0400 Received: from adsl-76-233-236-102.dsl.pltn13.sbcglobal.net ([76.233.236.102]:52711 "EHLO abulafia.goop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754281AbZEHAJz (ORCPT ); Thu, 7 May 2009 20:09:55 -0400 From: Jeremy Fitzhardinge To: Ingo Molnar Cc: the arch/x86 maintainers , Linux Kernel Mailing List , Xen-devel Subject: [GIT PULL] Xen core updates Date: Thu, 7 May 2009 13:24:54 -0700 Message-Id: <1241727902-3176-1-git-send-email-jeremy@goop.org> X-Mailer: git-send-email 1.6.0.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ingo, Here's a set of core Xen updates, which is a superset of the bugfix patches I posted earlier. The additional patches are: xen/i386: make sure initial VGA/ISA mappings are not overridden Make sure that ISA identity mappings are not overridden by _PAGE_IOMAP mappings. x86: use flush_tlb_others to implement flush_tlb_all Paravirtualize flush_tlb_all by implementing it in terms of flush_tlb_others. This avoids some unnecessary IPIs when flushing kernel mappings. xen: cache cr0 value to avoid trap'n'emulate for read_cr0 read_cr0 is used every context switch to set TS, but Xen has been implementing it with a trap'n'emulate of a native "mov cr0". This adds a Xen-specific implementation of the read_cr0 pvop to avoid the extra trap. The following changes since commit e7c064889606aab3569669078c69b87b2c527e72: Jeremy Fitzhardinge (1): xen: add FIX_TEXT_POKE to fixmap are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git xen-tip/core Jeremy Fitzhardinge (8): xen/x86-64: fix breakpoints and hardware watchpoints xen/x86-64: clean up warnings about IST-using traps xen: cache cr0 value to avoid trap'n'emulate for read_cr0 xen: deal with NMI's use of IST too xen/i386: make sure initial VGA/ISA mappings are not overridden x86: use flush_tlb_others to implement flush_tlb_all xen/i386: reserve Xen pagetables xen: reserve Xen start_info rather than e820 reserving arch/x86/include/asm/traps.h | 2 + arch/x86/kernel/entry_64.S | 4 +++ arch/x86/mm/tlb.c | 29 ++++++++++++++-------- arch/x86/xen/enlighten.c | 54 ++++++++++++++++++++++++++++++++++++++++- arch/x86/xen/mmu.c | 23 ++++++++++++++++- arch/x86/xen/setup.c | 6 ++-- 6 files changed, 100 insertions(+), 18 deletions(-) Thanks, J