iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/x86/kernel
History
Sebastian Andrzej Siewior 717cce3bdc x86/cpu: Provide the full setup for getcpu() on x86-32 
setup_getcpu() configures two things:

  - it writes the current CPU & node information into MSR_TSC_AUX
  - it writes the same information as a GDT entry.

By using the "full" setup_getcpu() on i386 it is possible to read the CPU
information in userland via RDTSCP() or via LSL from the GDT.

Provide an GDT_ENTRY_CPUNODE for x86-32 and make the setup function
unconditionally available.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Link: https://lore.kernel.org/r/20221125094216.3663444-2-bigeasy@linutronix.de
2023-02-06 15:48:54 +01:00
..
acpi
x86/acpi/cstate: Optimize ARB_DISABLE on Centaur CPUs
2022-11-11 09:42:05 -08:00
apic
A set of changes for the x86 APIC code:
2022-12-12 12:30:31 -08:00
cpu
x86/cpu: Provide the full setup for getcpu() on x86-32
2023-02-06 15:48:54 +01:00
fpu
* Clarify XSAVE consistency warnings
2022-12-12 14:41:57 -08:00
kprobes
x86/kprobes: Fix optprobe optimization check with CONFIG_RETHUNK
2022-12-27 12:51:58 +01:00
.gitignore
…
alternative.c
New Feature:
2022-12-17 14:06:53 -06:00
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 AMD PCI IDs for SMN communication
2022-07-20 17:35:40 +02:00
aperture_64.c
x86: Fix various duplicate-word comment typos
2022-08-15 19:17:52 +02:00
apm_32.c
x86/ibt: Disable IBT around firmware
2022-03-15 10:32:40 +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
Linux 6.1-rc6
2022-11-21 23:01:51 +01:00
audit_64.c
audit: add support for the openat2 syscall
2021-10-01 16:52:48 -04:00
bootflag.c
…
callthunks.c
x86/calldepth: Fix incorrect init section references
2022-12-27 12:51:58 +01:00
cfi.c
x86: Add support for CONFIG_CFI_CLANG
2022-09-26 10:13:16 -07:00
check.c
…
cpuid.c
driver core: make struct class.devnode() take a const *
2022-11-24 17:12:27 +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/kexec: Fix double-free of elf header buffer
2023-01-02 18:56:21 +01:00
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
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
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
x86/espfix: Use get_random_long() rather than archrandom
2022-10-31 20:12:50 +01:00
ftrace_32.S
x86: Prepare asm files for straight-line-speculation
2021-12-08 12:25:37 +01:00
ftrace_64.S
Merge branch 'x86/urgent' into x86/core, to resolve conflict
2022-10-22 10:06:18 +02:00
ftrace.c
New Feature:
2022-12-17 14:06:53 -06:00
head32.c
…
head64.c
x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros
2022-12-15 10:37:27 -08:00
head_32.S
x86/asm/32: Remove setup_once()
2022-12-02 14:06:34 +01:00
head_64.S
x86/callthunks: Add call patching for call depth tracking
2022-10-17 16:41:13 +02:00
hpet.c
rtc: Check return value from mc146818_get_time()
2021-12-16 21:50:06 +01:00
hw_breakpoint.c
x86/mm: Randomize per-cpu entry area
2022-12-15 10:37:26 -08:00
i8237.c
…
i8253.c
…
i8259.c
x86/i8259: Make default_legacy_pic static
2022-10-31 10:20:32 +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
…
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
ARM64:
2022-12-15 11:12:21 -08:00
kvmclock.c
x86/kvm: Don't waste kvmclock memory if there is nopv parameter
2022-04-13 13:37:19 -04:00
ldt.c
memcg: enable accounting for ldt_struct objects
2021-09-03 09:58:13 -07:00
machine_kexec_32.c
…
machine_kexec_64.c
x86/kexec: fix memory leak of elf header buffer
2022-06-01 15:57:16 -07:00
Makefile
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
mmconf-fam10h_64.c
…
module.c
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
mpparse.c
x86: Avoid magic number with ELCR register accesses
2021-08-10 23:31:43 +02:00
msr.c
driver core: make struct class.devnode() take a const *
2022-11-24 17:12:27 +01:00
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/paravirt: Use common macro for creating simple asm paravirt functions
2022-11-24 13:56:44 +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/percpu: Move current_top_of_stack next to current_task
2022-10-17 16:41:05 +02:00
process_64.c
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
process.c
Random number generator updates for Linux 6.2-rc1.
2022-12-12 16:22:22 -08:00
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
…
quirks.c
…
reboot_fixups_32.c
…
reboot.c
x86: Use do_kernel_power_off()
2022-05-19 19:30:31 +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/callthunks: Add call patching for call depth tracking
2022-10-17 16:41:13 +02:00
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: Rename mach_set_rtc_mmss() to mach_set_cmos_time()
2022-08-14 11:24:29 +02:00
setup_percpu.c
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
setup.c
- Split MTRR and PAT init code to accomodate at least Xen PV and TDX
2022-12-13 14:56:56 -08:00
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/insn: Avoid namespace clash by separating instruction decoder MMIO type from MMIO trace type
2023-01-03 18:46:06 +01:00
signal_32.c
x86/signal/32: Merge native and compat 32-bit signal code
2022-10-19 09:58:49 +02:00
signal_64.c
x86/signal/64: Move 64-bit signal code to its own file
2022-10-19 09:58:49 +02:00
signal_compat.c
signal: Deliver SIGTRAP on perf event asynchronously if blocked
2022-04-22 12:14:05 +02:00
signal.c
x86/signal/64: Move 64-bit signal code to its own file
2022-10-19 09:58:49 +02:00
smp.c
…
smpboot.c
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
stacktrace.c
x86: remove __range_not_ok()
2022-02-25 09:36:05 +01:00
static_call.c
static_call: Add call depth tracking support
2022-10-17 16:41:16 +02:00
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
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
- Add the call depth tracking mitigation for Retbleed which has
2022-12-14 15:03:00 -08:00
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: Make art_related_clocksource static
2022-10-17 16:20:48 +02:00
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
Linux 6.1-rc6
2022-11-21 23:01:51 +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
x86/ibt: Implement FineIBT
2022-11-01 13:44:10 +01:00
vsmp_64.c
…
x86_init.c
x86/boot: Skip realmode init code when running as Xen PV guest
2022-11-25 12:05:22 +01:00