This is a review version of the 32-bit asm-to-C migration. I think
it works, but it's not yet well enough tested. I'm a lot more
familiar with the 64-bit asm than the 32-bit asm.
The vm86 stuff especially needs much more careful testing. Brian,
since you're playing with vm86 now, can you take a look?
Changes from v1:
- Fix some nasty vm86 issues. v1 was a regression. v2 is an improvement
over the status quo AFAICT.
- Add patch 1, which is probably worthwhile on its own.
- Get rid of the temporary ud2 hack.
Andy Lutomirski (6):
x86/selftests, x86/vm86: Improve entry_from_vm86 selftest
x86/entry/32: Remove 32-bit syscall audit optimizations
x86/entry/32: Fix an incorrect comment for work_notifysig_v86
x86/entry/32: Remove unnecessary asm check for returns to kernel mode
x86/entry/32: Migrate to C exit path and rework vm86 exit hack
x86/entry: Remove do_notify_resume, syscall_trace_leave, and their TIF
masks
arch/x86/entry/common.c | 107 ++++++++++-----------
arch/x86/entry/entry_32.S | 130 +++----------------------
arch/x86/include/asm/ptrace.h | 1 -
arch/x86/include/asm/signal.h | 1 -
arch/x86/include/asm/thread_info.h | 18 +---
arch/x86/kernel/vm86_32.c | 6 +-
tools/testing/selftests/x86/entry_from_vm86.c | 132 ++++++++++++++++++++++++--
7 files changed, 191 insertions(+), 204 deletions(-)
--
2.4.3
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