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Peter Zijlstra 545a94ffc2 x86/alternative: Make custom return thunk unconditional 
Upstream commit: 095b8303f3835c68ac4a8b6d754ca1c3b6230711

There is infrastructure to rewrite return thunks to point to any
random thunk one desires, unwrap that from CALL_THUNKS, which up to
now was the sole user of that.

  [ bp: Make the thunks visible on 32-bit and add ifdeffery for the
    32-bit builds. ]

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230814121148.775293785@infradead.org
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-01 13:26:33 +01:00
..
acpi
x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility
2023-11-02 09:35:31 +01:00
apic
x86/apic/msi: Fix misconfigured non-maskable MSI quirk
2023-12-08 08:51:20 +01:00
cpu
x86/alternative: Make custom return thunk unconditional
2024-03-01 13:26:33 +01:00
fpu
x86/fpu: Stop relying on userspace for info to fault in xsave buffer
2024-02-23 09:12:43 +01:00
kprobes
x86/kprobes: fix incorrect return address calculation in kprobe_emulate_call_indirect
2024-01-10 17:10:35 +01:00
.gitignore
…
alternative.c
x86/alternative: Make custom return thunk unconditional
2024-03-01 13:26:33 +01:00
amd_gart_64.c
x86: Fix various duplicate-word comment typos
2022-08-15 19:17:52 +02:00
amd_nb.c
x86/amd_nb: Use Family 19h Models 60h-7Fh Function 4 IDs
2023-11-20 11:52:18 +01:00
aperture_64.c
x86: Fix various duplicate-word comment typos
2022-08-15 19:17:52 +02:00
apm_32.c
x86/APM: drop the duplicate APM_MINOR_DEV macro
2023-09-13 09:42:52 +02:00
asm-offsets_32.c
…
asm-offsets_64.c
KVM: x86: Support the vCPU preemption check with nopvspin and realtime hint
2022-04-02 05:41:21 -04:00
asm-offsets.c
KVM: x86: use a separate asm-offsets.c file
2022-11-09 12:10:17 -05:00
audit_64.c
audit: add support for the openat2 syscall
2021-10-01 16:52:48 -04:00
bootflag.c
…
cfi.c
x86: Add support for CONFIG_CFI_CLANG
2022-09-26 10:13:16 -07:00
check.c
…
cpuid.c
…
crash_core_32.c
…
crash_core_64.c
…
crash_dump_32.c
vmcore: convert copy_oldmem_page() to take an iov_iter
2022-04-29 14:37:59 -07:00
crash_dump_64.c
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
crash.c
x86/reboot: VMCLEAR active VMCSes before emergency reboot
2023-10-06 14:56:50 +02:00
devicetree.c
Devicetree updates for v5.16:
2021-11-02 22:22:13 -07:00
doublefault_32.c
exit/doublefault: Remove apparently bogus comment about rewind_stack_do_exit
2021-10-20 13:09:43 -05:00
dumpstack_32.c
…
dumpstack_64.c
x86/mm/64: Improve stack overflow warnings
2021-09-21 13:57:43 +02:00
dumpstack.c
x86/show_trace_log_lvl: Ensure stack pointer is aligned, again
2023-05-30 14:03:32 +01:00
e820.c
x86/kexec: Carry forward IMA measurement log on kexec
2022-07-01 15:22:16 +02:00
early_printk.c
x86/earlyprintk: Clean up pciserial
2022-08-29 12:19:25 +02:00
early-quirks.c
drm/i915/rpl-p: Add PCI IDs
2022-04-19 17:14:09 -07:00
ebda.c
…
eisa.c
…
espfix_64.c
random: handle archrandom with multiple longs
2022-07-25 13:26:14 +02:00
ftrace_32.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
ftrace_64.S
ftrace,kcfi: Define ftrace_stub_graph conditionally
2023-03-22 13:33:43 +01:00
ftrace.c
x86/returnthunk: Allow different return thunks
2024-03-01 13:26:33 +01:00
head32.c
…
head64.c
x86/boot: Fix incorrect startup_gdt_descr.size
2023-11-20 11:51:50 +01:00
head_32.S
x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit
2022-07-13 12:43:26 +02:00
head_64.S
x86/head/64: Switch to KERNEL_CS as soon as new GDT is installed
2023-06-21 16:00:51 +02:00
hpet.c
rtc: Add support for configuring the UIP timeout for RTC reads
2024-01-31 16:17:01 -08:00
hw_breakpoint.c
…
i8237.c
…
i8253.c
…
i8259.c
x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility
2023-11-02 09:35:31 +01:00
idt.c
x86/entry: Convert INT 0x80 emulation to IDTENTRY
2023-12-13 18:39:05 +01:00
io_delay.c
…
ioport.c
…
irq_32.c
asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig.
2022-09-05 17:20:55 +02:00
irq_64.c
…
irq_work.c
…
irq.c
x86/irq: Ensure PI wakeup handler is unregistered before module unload
2021-10-22 12:45:35 -04:00
irqflags.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
irqinit.c
x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL
2023-02-01 08:34:50 +01:00
itmt.c
x86/sched: Decrease further the priorities of SMT siblings
2021-10-05 15:51:59 +02:00
jailhouse.c
…
jump_label.c
jump_label: make initial NOP patching the special case
2022-06-24 09:48:55 +02:00
kdebugfs.c
x86/boot: Fix memremap of setup_indirect structures
2022-03-09 12:49:44 +01:00
kexec-bzimage64.c
integrity-v6.0
2022-08-02 15:21:18 -07:00
kgdb.c
…
ksysfs.c
x86/boot: Fix memremap of setup_indirect structures
2022-03-09 12:49:44 +01:00
kvm.c
x86/sev: Make enc_dec_hypercall() accept a size instead of npages
2023-09-13 09:43:03 +02:00
kvmclock.c
x86/kvm: Do not try to disable kvmclock if it was not enabled
2024-01-25 15:27:44 -08:00
ldt.c
memcg: enable accounting for ldt_struct objects
2021-09-03 09:58:13 -07:00
machine_kexec_32.c
x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c
2021-05-21 12:36:45 +02:00
machine_kexec_64.c
x86/kexec: fix memory leak of elf header buffer
2022-06-01 15:57:16 -07:00
Makefile
rethook, fprobe: do not trace rethook related functions
2023-05-24 17:32:53 +01:00
mmconf-fam10h_64.c
x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG
2021-05-10 07:51:38 +02:00
module.c
treewide: use prandom_u32_max() when possible, part 1
2022-10-11 17:42:55 -06:00
mpparse.c
x86: Avoid magic number with ELCR register accesses
2021-08-10 23:31:43 +02:00
msr.c
…
nmi_selftest.c
…
nmi.c
x86/nmi: Make register_nmi_handler() more robust
2022-05-17 09:25:25 +02:00
paravirt-spinlocks.c
…
paravirt.c
x86/ibt,paravirt: Sprinkle ENDBR
2022-03-15 10:32:36 +01:00
pci-dma.c
swiotlb: merge swiotlb-xen initialization into swiotlb
2022-04-18 07:21:13 +02:00
pcspeaker.c
…
perf_regs.c
…
platform-quirks.c
…
pmem.c
x86/pmem: Fix platform-device leak in error path
2022-06-20 18:01:16 +02:00
probe_roms.c
x86/kernel: Validate ROM memory before accessing when SEV-SNP is active
2022-04-06 13:23:09 +02:00
process_32.c
x86/resctl: fix scheduler confusion with 'current'
2023-03-11 13:55:41 +01:00
process_64.c
x86/resctl: fix scheduler confusion with 'current'
2023-03-11 13:55:41 +01:00
process.c
x86/smp: Dont access non-existing CPUID leaf
2023-07-01 13:16:23 +02:00
process.h
x86: Snapshot thread flags
2021-12-01 00:06:43 +01:00
ptrace.c
x86/32: Remove lazy GS macros
2022-04-14 14:09:43 +02:00
pvclock.c
…
quirks.c
…
reboot_fixups_32.c
…
reboot.c
x86/reboot: VMCLEAR active VMCSes before emergency reboot
2023-10-06 14:56:50 +02:00
relocate_kernel_32.S
x86/kexec: Disable RET on kexec
2022-07-09 13:12:32 +02:00
relocate_kernel_64.S
x86/kexec: Disable RET on kexec
2022-07-09 13:12:32 +02:00
resource.c
x86/PCI: Revert "x86/PCI: Clip only host bridge windows for E820 regions"
2022-06-17 14:24:14 -05:00
rethook.c
x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs
2022-03-28 19:38:51 -07:00
rtc.c
rtc: Extend timeout for waiting for UIP to clear to 1s
2024-01-31 16:17:01 -08:00
setup_percpu.c
mm: percpu: add generic pcpu_populate_pte() function
2022-01-20 08:52:52 +02:00
setup.c
x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
2023-10-06 14:56:39 +02:00
sev_verify_cbit.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
sev-shared.c
x86/sev: Check for user-space IOIO pointing to kernel space
2023-10-25 12:03:04 +02:00
sev.c
x86/sev: Fix kernel crash due to late update to read-only ghcb_version
2023-12-13 18:39:24 +01:00
signal_compat.c
signal: Deliver SIGTRAP on perf event asynchronously if blocked
2022-04-22 12:14:05 +02:00
signal.c
x86/init: Initialize signal frame size late
2023-08-08 20:03:47 +02:00
smp.c
x86/smp: Cure kexec() vs. mwait_play_dead() breakage
2023-07-01 13:16:23 +02:00
smpboot.c
x86/smp: Cure kexec() vs. mwait_play_dead() breakage
2023-07-01 13:16:23 +02:00
stacktrace.c
x86: remove __range_not_ok()
2022-02-25 09:36:05 +01:00
static_call.c
x86/returnthunk: Allow different return thunks
2024-03-01 13:26:33 +01:00
step.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-05-11 14:34:28 -05:00
sys_ia32.c
…
sys_x86_64.c
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
2022-05-04 18:20:42 +02:00
tboot.c
mm: remove rb tree.
2022-09-26 19:46:16 -07:00
time.c
…
tls.c
…
tls.h
…
topology.c
drivers/base/node: consolidate node device subsystem initialization in node_dev_init()
2022-03-22 15:57:10 -07:00
trace_clock.c
…
trace.c
trace/osnoise: Fix an ifdef comment
2021-10-25 23:02:36 -04:00
tracepoint.c
x86/traceponit: Fix comment about irq vector tracepoints
2022-05-26 22:03:52 -04:00
traps.c
x86/CPU/AMD: Fix the DIV(0) initial fix attempt
2023-08-26 13:27:00 +02:00
tsc_msr.c
…
tsc_sync.c
x86/tsc: Add a timer to make sure TSC_adjust is always checked
2021-12-02 00:40:35 +01:00
tsc.c
x86/tsc: Be consistent about use_tsc_delay()
2022-03-15 18:20:33 +01:00
umip.c
x86/umip: Downgrade warning messages to debug loglevel
2021-09-25 13:23:28 +02:00
unwind_frame.c
x86: kmsan: don't instrument stack walking functions
2022-10-03 14:03:25 -07:00
unwind_guess.c
x86/unwind: Recover kretprobe trampoline entry
2021-09-30 21:24:07 -04:00
unwind_orc.c
x86/unwind/orc: Fix unreliable stack dump with gcov
2022-10-21 14:56:42 +02:00
uprobes.c
uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix
2022-12-31 13:31:59 +01:00
verify_cpu.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
vm86_32.c
x86/32: Remove lazy GS macros
2022-04-14 14:09:43 +02:00
vmlinux.lds.S
x86/retpoline,kprobes: Fix position of thunk sections with CONFIG_LTO_CLANG
2023-08-26 13:27:00 +02:00
vsmp_64.c
…
x86_init.c
x86/mm: Allow guest.enc_status_change_prepare() to fail
2023-07-19 16:21:00 +02:00