From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932431AbdJZI1E (ORCPT ); Thu, 26 Oct 2017 04:27:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:40208 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932267AbdJZI07 (ORCPT ); Thu, 26 Oct 2017 04:26:59 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BBF021913 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=luto@kernel.org From: Andy Lutomirski To: X86 ML Cc: Borislav Petkov , "linux-kernel@vger.kernel.org" , Brian Gerst , Dave Hansen , Linus Torvalds , Andy Lutomirski Subject: [PATCH 00/18] Pile o' entry/exit/sp0 changes Date: Thu, 26 Oct 2017 01:26:32 -0700 Message-Id: X-Mailer: git-send-email 2.13.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all- Here's the first "real" version of this series. It's based on Linus' tree from a couple days ago. Changes from the old RFC version: - Rebase - Add Juergen's patch - Add some assertions - Cleanups Andy Lutomirski (17): x86/asm/64: Remove the restore_c_regs_and_iret label x86/asm/64: Split the iret-to-user and iret-to-kernel paths x86/asm/64: Move SWAPGS into the common iret-to-usermode path x86/asm/64: Simplify reg restore code in the standard IRET paths x86/asm/64: Shrink paranoid_exit_restore and make labels local x86/asm/64: Use pop instead of movq in syscall_return_via_sysret x86/asm/64: Merge the fast and slow SYSRET paths x86/asm/64: De-Xen-ify our NMI code x86/asm/32: Pull MSR_IA32_SYSENTER_CS update code out of native_load_sp0() x86/asm/64: Pass sp0 directly to load_sp0() x86/asm: Add task_top_of_stack() to find the top of a task's stack x86/xen/64: Clean up SP code in cpu_initialize_context() x86/boot/64: Stop initializing TSS.sp0 at boot x86/asm/64: Remove all remaining direct thread_struct::sp0 reads x86/boot/32: Fix cpu_current_top_of_stack initialization at boot x86/asm/64: Remove thread_struct::sp0 x86/traps: Use a new on_thread_stack() helper to clean up an assertion Juergen Gross (1): xen: add xen nmi trap entry arch/x86/entry/calling.h | 21 ++++++ arch/x86/entry/entry_64.S | 120 +++++++++++++++++++--------------- arch/x86/entry/entry_64_compat.S | 3 +- arch/x86/include/asm/compat.h | 1 + arch/x86/include/asm/paravirt.h | 5 +- arch/x86/include/asm/paravirt_types.h | 2 +- arch/x86/include/asm/processor.h | 57 ++++++++-------- arch/x86/include/asm/switch_to.h | 23 +++++++ arch/x86/include/asm/traps.h | 2 +- arch/x86/kernel/cpu/common.c | 12 +++- arch/x86/kernel/head_64.S | 2 +- arch/x86/kernel/process.c | 3 +- arch/x86/kernel/process_32.c | 3 +- arch/x86/kernel/process_64.c | 5 +- arch/x86/kernel/smpboot.c | 3 +- arch/x86/kernel/traps.c | 3 +- arch/x86/kernel/vm86_32.c | 20 +++--- arch/x86/xen/enlighten_pv.c | 9 ++- arch/x86/xen/smp_pv.c | 17 ++++- arch/x86/xen/xen-asm_64.S | 2 +- 20 files changed, 195 insertions(+), 118 deletions(-) -- 2.13.6