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x86/irq/64: Remove a hardcoded irq_stack_union access
2019-04-17 Andy Lutomirskix86/irq/64: Remove a hardcoded irq_stack_union access
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2019-04-17 Andy Lutomirskix86/dumpstack: Fix off-by-one errors in stack identification
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2019-02-25 Andy Lutomirskix86/uaccess: Don't leak the AC flag into __put_user...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-22 Andy Lutomirskix86/fault: Decode page fault OOPSes better
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-22 Andy Lutomirskix86/vsyscall/64: Use X86_PF constants in the simulated...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-22 Andy Lutomirskix86/oops: Show the correct CS value in show_regs()
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-22 Andy Lutomirskix86/fault: Don't try to recover from an implicit supervisor...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-22 Andy Lutomirskix86/fault: Remove sw_error_code
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-11-20 Andy Lutomirskix86/fault: Don't set thread.cr2, etc before OOPSing
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/fault: Make error_code sanitization more robust
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/fault: Improve the condition for signalling vs...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/fault: Fix SMAP #PF handling buglet for implicit...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/fault: Fold smap_violation() into do_user_addr_fault()
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/cpufeatures, x86/fault: Mark SMAP as disabled when...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-11-20 Andy Lutomirskix86/fault: Check user_mode(regs) when avoiding an mmap_sem...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-10-17 Andy Lutomirskix86/entry/64: Further improve paranoid_entry comments
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-08 Andy Lutomirskix86/fsgsbase/64: Fix ptrace() to read the FS/GS base...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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2018-10-05 Andy Lutomirskix86/vdso: Rearrange do_hres() to improve code generation
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-05 Andy Lutomirskix86/vdso: Document vgtod_ts better
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-05 Andy Lutomirskix86/vdso: Remove "memory" clobbers in the vDSO syscall...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-04 Andy Lutomirskix86/vdso: Fix vDSO syscall fallback asm constraint...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-03 Andy Lutomirskix86/vdso: Only enable vDSO retpolines when enabled...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-02 Andy Lutomirskiselftests/x86: Add clock_gettime() tests to test_vdso
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-10-02 Andy Lutomirskix86/vdso: Fix asm constraints on vDSO syscall fallbacks
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-09-12 Andy Lutomirskix86/pti/64: Remove the SYSCALL64 entry trampoline
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-09-08 Andy Lutomirskix86/entry/64: Use the TSS sp2 slot for SYSCALL/SYSRET...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-09-08 Andy Lutomirskix86/entry/64: Document idtentry
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-08-31 Andy Lutomirskix86/nmi: Fix NMI uaccess race against CR3 switching
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-08-20 Andy Lutomirskix86/vdso: Fix vDSO build if a retpoline is emitted
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-07-24 Andy Lutomirskix86/entry/64: Remove %ebx handling from error_entry...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-06-27 Andy Lutomirskiselftests/x86/sigreturn: Do minor cleanups
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-06-27 Andy Lutomirskiselftests/x86/sigreturn/64: Fix spurious failures on...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-06-27 Andy Lutomirskix86/entry/64/compat: Fix "x86/entry/64/compat: Preserve...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-06-18 Andy LutomirskiMAINTAINERS: Add me as an x86 entry code maintainer
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-05-14 Andy Lutomirskix86/selftests: Add mov_to_ss test
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-04-27 Andy Lutomirskix86/entry/64/compat: Preserve r8-r11 in int $0x80
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-04-09 Andy Lutomirskix86/entry/64: Drop idtentry's manual stack switch for...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-23 Andy Lutomirskix86/entry/64: Don't use IST entry for #BP stack
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-19 Andy Lutomirskiselftests/x86/ptrace_syscall: Fix for yet more glibc...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-14 Andy Lutomirskix86/vm86/32: Fix POPF emulation
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-14 Andy Lutomirskiselftests/x86/entry_from_vm86: Add test cases for POPF
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-14 Andy Lutomirskiselftests/x86/entry_from_vm86: Exit with 1 if we fail
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-03-08 Andy Lutomirskix86/vsyscall/64: Drop "native" vsyscalls
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-02-15 Andy Lutomirskix86/mm: Rename flush_tlb_single() and flush_tlb_one...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-02-13 Andy Lutomirskix86/mm/dump_pagetables: Add the EFI pagetable to the...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-30 Andy Lutomirskix86/asm: Move 'status' from thread_struct to thread_info
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-30 Andy Lutomirskix86/entry/64: Push extra regs right away
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-30 Andy Lutomirskix86/entry/64: Remove the SYSCALL64 fast path
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-26 Andy Lutomirskix86/mm/64: Tighten up vmalloc_fault() sanity checks...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-26 Andy Lutomirskix86/mm/64: Fix vmapped stack syncing on very-large...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2018-01-13 Andy Lutomirskiselftests/x86: Add test_vsyscall
CSigned-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/pti: Map the vsyscall page if needed
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/pti: Put the LDT in its own PGD if PTI is on
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/mm/64: Make a full PGD-entry size hole in the memory map
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/mm/pti: Map ESPFIX into user space
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/mm/pti: Share cpu_entry_area with user space page...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-23 Andy Lutomirskix86/mm/pti: Add functions to clone kernel PMDs
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-22 Andy Lutomirskix86/mm/64: Improve the memory map documentation
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-22 Andy Lutomirskix86/vsyscall/64: Warn and fail vsyscall emulation in...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-22 Andy Lutomirskix86/vsyscall/64: Explicitly set _PAGE_USER in the pagetable...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Make cpu_entry_area.tss read-only
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry: Clean up the SYSENTER_stack code
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Remove the SYSENTER stack canary
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Move the IST stacks into struct cpu_entry_area
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Create a per-CPU SYSCALL entry trampoline
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Return to userspace from the trampoline...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Use a per-CPU trampoline stack for IDT...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/espfix/64: Stop assuming that pt_regs is on the...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Separate cpu_current_top_of_stack from...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry: Remap the TSS into the CPU entry area
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry: Move SYSENTER_stack to the beginning of...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/dumpstack: Handle stack overflow on all stacks
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry: Fix assumptions that the HW TSS is at the...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/kasan/64: Teach KASAN about the cpu_entry_area
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/mm/fixmap: Generalize the GDT fixmap mechanism...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/gdt: Put per-CPU GDT remaps in ascending...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/dumpstack: Add get_stack_info() support for the...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/entry/64: Allocate and enable the SYSENTER stack
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/irq/64: Print the offending IP in the stack overflow...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/irq: Remove an old outdated comment about context...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-17 Andy Lutomirskix86/unwinder/orc: Dont bail on stack overflow
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-15 Andy Lutomirskix86/espfix/64: Fix espfix double-fault handling on...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-15 Andy Lutomirskix86/power: Make restore_processor_context() sane
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-15 Andy Lutomirskix86/power/32: Move SYSENTER MSR restoration to fix_processor...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-15 Andy Lutomirskix86/power/64: Use struct desc_ptr for the IDT in struct...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-12-06 Andy Lutomirskix86/power: Fix some ordering bugs in __restore_processor_con...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-23 Andy Lutomirskix86/entry/64: Add missing irqflags tracing to native_load_gs...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-22 Andy Lutomirskix86/entry/64: Fix entry_SYSCALL_64_after_hwframe()...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-07 Andy Lutomirskiselftests/x86/ldt_get: Add a few additional tests for...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-07 Andy Lutomirskiselftests/x86/ldt_gdt: Run most existing LDT test cases...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-07 Andy Lutomirskiselftests/x86/ldt_gdt: Add infrastructure to test set_thread...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-07 Andy Lutomirskiselftests/x86/ldt_gdt: Robustify against set_thread_area...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-07 Andy Lutomirskiselftests/x86/protection_keys: Fix syscall NR redefinition...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-04 Andy LutomirskiRevert "x86/mm: Stop calling leave_mm() in idle code"
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/traps: Use a new on_thread_stack() helper to clean...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/entry/64: Remove thread_struct::sp0
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/entry/32: Fix cpu_current_top_of_stack initialization...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/entry/64: Remove all remaining direct thread_struct...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/entry/64: Stop initializing TSS.sp0 at boot
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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2017-11-02 Andy Lutomirskix86/xen/64, x86/entry/64: Clean up SP code in cpu_initialize...
Signed-off-by: Andy Lutomirski <luto@kernel.org>
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