Tony Luck 6f6947b238 x86/resctrl: Only check Intel systems for SNC ...

topology_num_nodes_per_package() reports values greater than one on certain
AMD systems resulting in resctrl's Intel model specific SNC detection
printing the confusing message:

   "CoD enabled system? Resctrl not supported"

Add a check for Intel systems before looking at the topology.

[ reinette: Add Closes tag, fix tag typos, rework changelog ]

Fixes: 59674fc9d0 ("x86/resctrl: Fix SNC detection")
Reported-by: Babu Moger <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
Signed-off-by: Reinette Chatre <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Tested-by: Babu Moger <[email protected]>
Link: https://patch.msgid.link/9849330f45ac86344cc5ac54df2d313906d70bc4.1780634584.git.reinette.chatre@intel.com
Closes: https://lore.kernel.org/lkml/[email protected]/

2026-06-05 11:09:34 +02:00

..

acpi

Revert "ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn"

2026-05-08 21:14:19 +02:00

apic

Merge tag 'x86-cleanups-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-04-14 14:03:27 -07:00

cpu

x86/resctrl: Only check Intel systems for SNC

2026-06-05 11:09:34 +02:00

fpu

Revert "x86/fpu: Refine and simplify the magic number check during signal return"

2026-05-29 15:05:30 -07:00

kprobes

Merge tag 'perf-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-01 20:42:01 -08:00

.gitignore

…

alternative.c

x86/alternative: delay freeing of smp_locks section

2026-04-03 17:38:34 +03:00

amd_gart_64.c

Merge tag 'dma-mapping-6.19-2025-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

2025-12-06 09:25:05 -08:00

amd_nb.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

amd_node.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

aperture_64.c

…

apm_32.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

asm-offsets_32.c

…

asm-offsets_64.c

…

asm-offsets.c

x86/entry/vdso32: Remove open-coded DWARF in sigreturn.S

2026-01-13 16:37:58 -08:00

audit_64.c

…

bootflag.c

…

callthunks.c

x86/paravirt: Remove not needed includes of paravirt.h

2026-01-12 11:26:52 +01:00

cet.c

…

cfi.c

…

check.c

…

cpuid.c

…

crash_dump_32.c

…

crash_dump_64.c

…

crash.c

KVM: x86: Move bulk of emergency virtualizaton logic to virt subsystem

2026-03-04 08:52:49 -08:00

devicetree.c

…

doublefault_32.c

…

dumpstack_32.c

…

dumpstack_64.c

…

dumpstack.c

x86/dumpstack: Prevent KASAN false positive warnings in __show_regs()

2025-10-29 13:07:21 +01:00

e820.c

x86/boot/e820: Re-enable BIOS fallback if e820 table is empty

2026-05-07 10:04:54 +02:00

early_printk.c

…

early-quirks.c

…

ebda.c

…

eisa.c

…

espfix_64.c

…

fred.c

x86/fred: Remove kernel log message when initializing exceptions

2026-03-27 16:38:24 +01:00

ftrace_32.S

…

ftrace_64.S

x86/fgraph: Fix return_to_handler regs.rsp value

2026-01-30 13:40:08 -08:00

ftrace.c

x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines

2026-05-27 15:23:37 -07:00

head32.c

…

head64.c

…

head_32.S

arch, mm: consolidate empty_zero_page

2026-04-05 13:53:01 -07:00

head_64.S

arch, mm: consolidate empty_zero_page

2026-04-05 13:53:01 -07:00

hpet.c

clocksource: Rewrite watchdog code completely

2026-03-20 13:36:32 +01:00

hw_breakpoint.c

x86: Restrict KVM-induced symbol exports to KVM modules where obvious/possible

2025-11-12 15:29:38 -08:00

i8237.c

syscore: Pass context data to callbacks

2025-11-14 10:01:52 +01:00

i8253.c

…

i8259.c

syscore: Pass context data to callbacks

2025-11-14 10:01:52 +01:00

ibt_selftest.S

…

idt.c

x86/kvm/vmx: Fix x86_64 CFI build

2026-05-28 11:31:50 +02:00

io_delay.c

…

ioport.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

irq_32.c

…

irq_64.c

…

irq_work.c

…

irq.c

Merge tag 'x86-irq-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-02-10 17:39:08 -08:00

irqflags.S

…

irqinit.c

…

itmt.c

…

jailhouse.c

…

jump_label.c

…

kdebugfs.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

kexec-bzimage64.c

crash_dump/dm-crypt: don't print in arch-specific code

2026-04-02 23:36:24 -07:00

kgdb.c

kgdb: update outdated references to kgdb_wait()

2026-04-21 16:41:54 +01:00

ksysfs.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

kvm.c

x86/paravirt: Replace io_delay() hook with a bool

2026-03-22 08:43:05 +01:00

kvmclock.c

x86/paravirt: Move paravirt_sched_clock() related code into tsc.c

2026-01-12 18:47:39 +01:00

ldt.c

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21 01:02:28 -08:00

machine_kexec_32.c

…

machine_kexec_64.c

x86/crash: Use set_memory_p() instead of __set_memory_prot()

2026-01-13 15:28:59 +01:00

Makefile

x86/kexec: Disable KCOV instrumentation after load_segments()

2026-03-30 14:15:25 +02:00

mmconf-fam10h_64.c

…

module.c

x86/module: Improve relocation error messages

2025-10-14 14:45:21 -07:00

mpparse.c

…

msr.c

x86/msr: Add CPU_OUT_OF_SPEC taint name to "unrecognized" pr_warn(msg)

2025-11-05 13:14:42 +01:00

nmi_selftest.c

…

nmi.c

x86/kvm/vmx: Move IRQ/NMI dispatch from KVM into x86 core

2026-05-19 20:25:51 +02:00

paravirt-spinlocks.c

x86/pvlocks: Move paravirt spinlock functions into own header

2026-01-13 14:57:45 +01:00

paravirt.c

x86/paravirt: Replace io_delay() hook with a bool

2026-03-22 08:43:05 +01:00

pci-dma.c

…

pcspeaker.c

…

perf_regs.c

…

platform-quirks.c

…

pmem.c

…

probe_roms.c

…

process_32.c

x86/process/32: Use correct type for 'gs' variable in __show_regs() to avoid zero-extension

2026-03-31 09:50:10 +02:00

process_64.c

x86/process/64: Use savesegment() in __show_regs() instead of inline asm

2026-03-31 09:50:10 +02:00

process.c

Merge tag 'x86_tdx_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-10-04 10:01:30 -07:00

process.h

…

ptrace.c

…

pvclock.c

…

quirks.c

…

reboot_fixups_32.c

…

reboot.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2026-04-17 07:18:03 -07:00

relocate_kernel_32.S

…

relocate_kernel_64.S

x86/kexec: Push kjump return address even for non-kjump kexec

2026-05-08 17:00:12 +02:00

resource.c

pcmcia: remove obsolete host controller drivers

2026-03-30 07:28:13 +02:00

rethook.c

objtool: Remove newlines and tabs from annotation macros

2025-12-03 19:42:37 +01:00

rtc.c

x86: rtc: Drop PNP device check

2026-02-26 18:48:43 +01:00

setup_percpu.c

…

setup.c

memblock, treewide: make memblock_free() handle late freeing

2026-04-01 11:20:15 +03:00

sev_verify_cbit.S

…

shstk.c

x86/shstk: Prevent deadlock during shstk sigreturn

2026-04-20 22:54:24 +02:00

signal_32.c

x86/entry/vdso: Rename vdso_image_* to vdso*_image

2026-01-13 15:33:20 -08:00

signal_64.c

…

signal.c

…

smp.c

KVM: x86: Move bulk of emergency virtualizaton logic to virt subsystem

2026-03-04 08:52:49 -08:00

smpboot.c

x86/topo: Fix SNC topology mess

2026-03-04 16:35:09 +01:00

stacktrace.c

…

static_call.c

objtool: Remove newlines and tabs from annotation macros

2025-12-03 19:42:37 +01:00

step.c

…

sys_ia32.c

fs: fix archiecture-specific compat_ftruncate64

2026-03-23 12:41:57 +01:00

sys_x86_64.c

…

tboot.c

…

time.c

…

tls.c

x86/tls: Clean up 'sel' variable usage in do_set_thread_area()

2026-03-31 09:50:11 +02:00

tls.h

…

trace_clock.c

…

trace.c

…

traps.c

x86/vsyscall: Restore vsyscall=xonly mode under LASS

2026-03-19 15:11:13 -07:00

tsc_msr.c

…

tsc_sync.c

…

tsc.c

clocksource: Rewrite watchdog code completely

2026-03-20 13:36:32 +01:00

umip.c

x86/traps: Consolidate user fixups in the #GP handler

2026-03-19 15:11:13 -07:00

unwind_frame.c

…

unwind_guess.c

…

unwind_orc.c

objtool/x86: Reorder ORC register numbering

2026-03-18 09:38:52 +01:00

uprobes.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

verify_cpu.S

…

vm86_32.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

vmcore_info_32.c

…

vmcore_info_64.c

…

vmlinux.lds.S

kbuild: Split .modinfo out from ELF_DETAILS

2026-02-26 11:50:19 -07:00

vsmp_64.c

x86/paravirt: Remove not needed includes of paravirt.h

2026-01-12 11:26:52 +01:00

x86_init.c

treewide: Update email address

2026-01-11 06:09:11 -10:00