Messages in this thread | | | From | Andy Lutomirski <> | Subject | [PATCH v2 00/20] Pile o' entry/exit/sp0 changes | Date | Thu, 2 Nov 2017 00:58:57 -0700 |
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Hi all-
Here we go again! I haven't done most of the requested label renaming, nor have I done Brian's reordering of the SYSCALL return code, mainly because I want to keep the ball rolling. As for label renaming, I'd rather let everyone finish arguing and then rename any labels at the end. I personally don't mind longish asm labels.
Changes from v1: - Comment improvements. - Lots of Reviewed-bys added. - Fix vm86 bug. - Completely remove RESTORE_..._REGS_... (Linus) -- adds two patches.
Changes from the old RFC version: - Rebase - Add Juergen's patch - Add some assertions - Cleanups
Andy Lutomirski (19): 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/entry/64: Use POP instead of MOV to restore regs on NMI return x86/entry/64: Remove the RESTORE_..._REGS infrastructure 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 | 69 +++++------------ arch/x86/entry/entry_64.S | 139 ++++++++++++++++++++-------------- 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 | 52 +++++-------- arch/x86/include/asm/switch_to.h | 24 ++++++ 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 | 8 +- arch/x86/kernel/process_32.c | 6 +- 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, 208 insertions(+), 176 deletions(-)
-- 2.13.6
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