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a72fdfd21e
linux/tools/testing/selftests/x86
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Borislav Petkov a72fdfd21e selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage 
Commit in Fixes changed the iopl emulation to not #GP on CLI and STI
because it would break some insane luserspace tools which would toggle
interrupts.

The corresponding selftest would rely on the fact that executing CLI/STI
would trigger a #GP and thus detect it this way but since that #GP is
not happening anymore, the detection is now wrong too.

Extend the test to actually look at the IF flag and whether executing
those insns had any effect on it. The STI detection needs to have the
fact that interrupts were previously disabled, passed in so do that from
the previous CLI test, i.e., STI test needs to follow a previous CLI one
for it to make sense.

Fixes: b968e84b50 ("x86/iopl: Fake iopl(3) CLI/STI usage")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20211030083939.13073-1-bp@alien8.de
2021-10-30 23:18:04 +02:00
..
.gitignore selftests/x86/pkeys: move selftests to arch-neutral directory 2020-06-04 19:06:26 -07:00
check_cc.sh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
check_initial_reg_state.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
corrupt_xstate_header.c selftests/x86: Test signal frame XSTATE header corruption handling 2021-06-09 14:46:30 +02:00
entry_from_vm86.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
fsgsbase_restore.c x86/ptrace: Fix 32-bit PTRACE_SETREGS vs fsbase and gsbase 2020-07-01 15:27:20 +02:00
fsgsbase.c selftests/x86/fsgsbase: Fix GS == 1, 2, and 3 tests 2020-11-24 13:46:16 +01:00
helpers.h selftests/x86: Use __builtin_ia32_read/writeeflags 2021-01-12 12:31:28 +01:00
ioperm.c selftests/x86/ioperm: Extend testing so the shared bitmap is exercised 2019-11-16 11:24:04 +01:00
iopl.c selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage 2021-10-30 23:18:04 +02:00
ldt_gdt.c selftests/x86/ldt_gdt: remove unneeded semicolon 2021-02-08 16:32:52 -07:00
Makefile selftests/x86: Test signal frame XSTATE header corruption handling 2021-06-09 14:46:30 +02:00
mov_ss_trap.c selftests/x86: Fix error: variably modified 'altstack_data' at file scope 2021-08-25 16:54:39 -06:00
ptrace_syscall.c selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault 2020-03-20 11:28:47 +01:00
raw_syscall_helper_32.S selftests/x86: Add missing .note.GNU-stack sections 2020-11-24 13:55:39 +01:00
sigaltstack.c selftest/x86/signal: Include test cases for validating sigaltstack 2021-05-19 12:45:07 +02:00
sigreturn.c selftests/x86: Fix error: variably modified 'altstack_data' at file scope 2021-08-25 16:54:39 -06:00
single_step_syscall.c selftests/x86: Fix error: variably modified 'altstack_data' at file scope 2021-08-25 16:54:39 -06:00
syscall_arg_fault.c selftests/x86: Fix error: variably modified 'altstack_data' at file scope 2021-08-25 16:54:39 -06:00
syscall_nt.c x86/entry, selftests: Further improve user entry sanity checks 2020-07-04 19:47:25 +02:00
syscall_numbering.c selftests/x86/syscall: Add tests under ptrace to syscall_numbering_64 2021-05-20 15:19:48 +02:00
sysret_rip.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
sysret_ss_attrs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_FCMOV.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_FCOMI.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_FISTTP.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_mremap_vdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_syscall_vdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_vsyscall.c selftests/x86/test_vsyscall: Improve the process_vm_readv() test 2020-09-03 18:36:55 -07:00
thunks_32.S selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S 2021-03-18 11:05:14 +01:00
thunks.S selftests/x86: Add missing .note.GNU-stack sections 2020-11-24 13:55:39 +01:00
trivial_32bit_program.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
trivial_64bit_program.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
trivial_program.c selftests/x86: Detect -no-pie availability 2018-05-30 15:21:51 -06:00
unwind_vdso.c selftests/x86: Consolidate and fix get/set_eflags() helpers 2020-07-01 10:00:27 +02:00
vdso_restorer.c selftests/x86/vdso: Fix no-vDSO segfaults 2020-03-20 11:20:04 +01:00