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linux/arch/x86/kernel
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Thomas Gleixner b1472a60a5 x86/smp: Don't send INIT to boot CPU 
Parking CPUs in INIT works well, except for the crash case when the CPU
which invokes smp_park_other_cpus_in_init() is not the boot CPU. Sending
INIT to the boot CPU resets the whole machine.

Prevent this by validating that this runs on the boot CPU. If not fall back
and let CPUs hang in HLT.

Fixes: 45e34c8af58f ("x86/smp: Put CPUs into INIT on shutdown if possible")
Reported-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/87ttui91jo.ffs@tglx
2023-07-07 15:42:31 +02:00
..
acpi
x86 APIC updates:
2023-04-25 11:39:45 -07:00
apic
x86 APIC updates:
2023-04-25 11:39:45 -07:00
cpu
x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms
2023-05-25 10:48:42 -07:00
fpu
x86/fpu/xstate: Prevent false-positive warning in __copy_xstate_uabi_buf()
2023-03-22 10:59:13 -07:00
kprobes
probes updates for 6.3:
2023-02-23 13:03:08 -08:00
.gitignore
…
alternative.c
x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions
2023-01-31 15:05:31 +01:00
amd_gart_64.c
x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros
2022-12-15 10:37:27 -08:00
amd_nb.c
x86/amd_nb: Add PCI ID for family 19h model 78h
2023-05-08 11:25:19 +02:00
aperture_64.c
x86: Fix various duplicate-word comment typos
2022-08-15 19:17:52 +02:00
apm_32.c
efi: x86: Wire up IBT annotation in memory attributes table
2023-02-09 19:30:54 +01:00
asm-offsets_32.c
…
asm-offsets_64.c
x86: Fixup asm-offsets duplicate
2022-10-17 16:41:06 +02:00
asm-offsets.c
x86/smpboot: Remove initial_stack on 64-bit
2023-03-21 13:35:53 +01:00
audit_64.c
…
bootflag.c
…
callthunks.c
module: replace module_layout with module_memory
2023-03-09 12:55:15 -08:00
cfi.c
x86: Add support for CONFIG_CFI_CLANG
2022-09-26 10:13:16 -07:00
check.c
…
cpuid.c
driver core: class: remove module * from class_create()
2023-03-17 15:16:33 +01:00
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
2022-11-25 13:01:55 -05:00
crash.c
x86/crash: Disable virt in core NMI crash handler to avoid double shootdown
2023-01-24 10:05:21 -08:00
devicetree.c
x86/of: Add support for boot time interrupt delivery mode configuration
2022-12-02 14:57:14 +01:00
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
x86/percpu: Move irq_stack variables next to current_task
2022-10-17 16:41:05 +02:00
dumpstack_64.c
x86/percpu: Move irq_stack variables next to current_task
2022-10-17 16:41:05 +02:00
dumpstack.c
x86/show_trace_log_lvl: Ensure stack pointer is aligned, again
2023-05-16 06:31:04 -07:00
e820.c
x86/setup: Move duplicate boot_cpu_data definition out of the ifdeffery
2023-01-11 12:45:16 +01:00
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
x86/espfix: Use get_random_long() rather than archrandom
2022-10-31 20:12:50 +01:00
ftrace_32.S
ftrace: selftest: remove broken trace_direct_tramp
2023-03-21 13:59:29 -04:00
ftrace_64.S
Objtool changes for v6.4:
2023-04-28 14:02:54 -07:00
ftrace.c
New Feature:
2022-12-17 14:06:53 -06:00
head32.c
x86/head: Mark *_start_kernel() __noreturn
2023-04-14 17:31:24 +02:00
head64.c
x86/head: Mark *_start_kernel() __noreturn
2023-04-14 17:31:24 +02:00
head_32.S
x86/asm/32: Remove setup_once()
2022-12-02 14:06:34 +01:00
head_64.S
Objtool changes for v6.4:
2023-04-28 14:02:54 -07:00
hpet.c
clocksource: Verify HPET and PMTMR when TSC unverified
2023-02-02 14:23:02 -08:00
hw_breakpoint.c
x86/amd: Cache debug register values in percpu variables
2023-01-31 20:09:26 +01:00
i8237.c
…
i8253.c
…
i8259.c
x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL
2023-01-16 17:24:56 +01:00
idt.c
x86/traps: Add #VE support for TDX guest
2022-04-07 08:27:51 -07:00
io_delay.c
…
ioport.c
…
irq_32.c
x86/percpu: Move irq_stack variables next to current_task
2022-10-17 16:41:05 +02:00
irq_64.c
x86/percpu: Move irq_stack variables next to current_task
2022-10-17 16:41:05 +02:00
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
2023-01-16 17:24:56 +01:00
itmt.c
x86: Simplify one-level sysctl registration for itmt_kern_table
2023-03-22 11:47:21 -07:00
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
docs: move x86 documentation into Documentation/arch/
2023-03-30 12:58:51 -06:00
kgdb.c
…
ksysfs.c
x86/boot: Fix memremap of setup_indirect structures
2022-03-09 12:49:44 +01:00
kvm.c
ARM64:
2022-12-15 11:12:21 -08:00
kvmclock.c
sched/clock/x86: Mark sched_clock() noinstr
2023-01-31 15:01:47 +01:00
ldt.c
…
machine_kexec_32.c
…
machine_kexec_64.c
x86/kexec: remove unnecessary arch_kexec_kernel_image_load()
2023-04-08 13:45:38 -07:00
Makefile
rethook, fprobe: do not trace rethook related functions
2023-05-18 07:08:01 +09:00
mmconf-fam10h_64.c
…
module.c
module: replace module_layout with module_memory
2023-03-09 12:55:15 -08:00
mpparse.c
…
msr.c
driver core: class: remove module * from class_create()
2023-03-17 15:16:33 +01:00
nmi_selftest.c
…
nmi.c
ARM:
2023-02-25 11:30:21 -08:00
paravirt-spinlocks.c
…
paravirt.c
x86/paravirt: Convert simple paravirt functions to asm
2023-03-17 13:29:47 +01:00
pci-dma.c
docs: move x86 documentation into Documentation/arch/
2023-03-30 12:58:51 -06:00
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'
2023-03-08 11:48:11 -08:00
process_64.c
IOMMU Updates for Linux 6.4
2023-04-30 13:00:38 -07:00
process.c
x86/smp: Dont access non-existing CPUID leaf
2023-06-20 14:51:46 +02:00
process.h
x86: Snapshot thread flags
2021-12-01 00:06:43 +01:00
ptrace.c
x86: Improve formatting of user_regset arrays
2022-11-01 15:36:52 -07:00
pvclock.c
sched/clock/x86: Mark sched_clock() noinstr
2023-01-31 15:01:47 +01:00
quirks.c
…
reboot_fixups_32.c
…
reboot.c
cpu: Mark nmi_panic_self_stop() __noreturn
2023-04-14 17:31:26 +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,objtool: Split UNWIND_HINT_EMPTY in two
2023-03-23 23:18:58 +01:00
resource.c
x86/PCI: Tidy E820 removal messages
2022-12-10 10:33:11 -06:00
rethook.c
x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs
2022-03-28 19:38:51 -07:00
rtc.c
x86/rtc: Simplify PNP ids check
2023-01-06 04:22:34 +01:00
setup_percpu.c
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
setup.c
x86/setup: Move duplicate boot_cpu_data definition out of the ifdeffery
2023-01-11 12:45:16 +01:00
sev_verify_cbit.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
sev-shared.c
Revert "x86/sev: Expose sev_es_ghcb_hv_call() for use by HyperV"
2022-07-27 18:09:13 +02:00
sev.c
x86/sev: Change snp_guest_issue_request()'s fw_err argument
2023-03-21 15:43:19 +01:00
signal_32.c
- Cache the AMD debug registers in per-CPU variables to avoid MSR writes
2023-02-21 14:51:40 -08:00
signal_64.c
x86/signal/compat: Move sigaction_compat_abi() to signal_64.c
2023-01-06 04:16:02 +01:00
signal.c
x86/signal: Fix the value returned by strict_sas_size()
2023-01-15 09:54:27 +01:00
smp.c
x86/smp: Put CPUs into INIT on shutdown if possible
2023-06-20 14:51:47 +02:00
smpboot.c
x86/smp: Don't send INIT to boot CPU
2023-07-07 15:42:31 +02:00
stacktrace.c
x86: remove __range_not_ok()
2022-02-25 09:36:05 +01:00
static_call.c
x86/static_call: Add support for Jcc tail-calls
2023-01-31 15:05:31 +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
x86/gsseg: Move load_gs_index() to its own new header file
2023-01-12 13:06:36 +01:00
tls.h
…
topology.c
x86/cpu: Switch to cpu_feature_enabled() for X86_FEATURE_XENPV
2022-11-22 16:18:19 +01:00
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
IOMMU Updates for Linux 6.4
2023-04-30 13:00:38 -07:00
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
Updates for timekeeping, timers and clockevent/source drivers:
2023-02-21 09:45:13 -08:00
umip.c
…
unwind_frame.c
x86: kmsan: don't instrument stack walking functions
2022-10-03 14:03:25 -07:00
unwind_guess.c
…
unwind_orc.c
x86,objtool: Split UNWIND_HINT_EMPTY in two
2023-03-23 23:18:58 +01:00
uprobes.c
uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix
2022-12-05 11:55:18 +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
objtool/idle: Validate __cpuidle code as noinstr
2023-01-13 11:48:15 +01:00
vsmp_64.c
…
x86_init.c
- Add the necessary glue so that the kernel can run as a confidential
2023-04-25 10:48:08 -07:00