Mikhail Paulyshka ee21fbcb87 x86/rdrand: Disable RDSEED on AMD Cyan Skillfish ... commit 5b937a1ed6 upstream. AMD Cyan Skillfish (Family 17h, Model 47h, Stepping 0h) has an error that causes RDSEED to always return 0xffffffff, while RDRAND works correctly. Mask the RDSEED cap for this CPU so that both /proc/cpuinfo and direct CPUID read report RDSEED as unavailable. [ bp: Move to amd.c, massage. ] Signed-off-by: Mikhail Paulyshka <me@mixaill.net> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Cc: <stable@kernel.org> Link: https://lore.kernel.org/20250524145319.209075-1-me@mixaill.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-07-17 18:35:15 +02:00
..
acpi	xen: allow mapping ACPI data using a different physical address	2024-10-04 16:29:43 +02:00
apic	x86/apic: Provide apic_force_nmi_on_cpu()	2025-03-07 16:45:54 +01:00
cpu	x86/rdrand: Disable RDSEED on AMD Cyan Skillfish	2025-07-17 18:35:15 +02:00
fpu	x86/fpu/xstate: Fix inconsistencies in guest FPU xfeatures	2025-04-10 14:37:26 +02:00
kprobes	kprobe/ftrace: bail out if ftrace was killed	2024-06-27 13:49:03 +02:00
.gitignore
alternative.c	x86/its: Fix build error for its_static_thunk()	2025-05-22 14:12:24 +02:00
amd_gart_64.c	Revert "change alloc_pages name in dma_map_ops to avoid name conflicts"	2024-09-04 13:28:24 +02:00
amd_nb.c	x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()	2025-03-13 12:58:19 +01:00
aperture_64.c
apm_32.c	x86/APM: drop the duplicate APM_MINOR_DEV macro	2023-07-30 14:00:32 +02:00
asm-offsets_32.c
asm-offsets_64.c
asm-offsets.c	x86/tdx: Pass TDCALL/SEAMCALL input/output registers via a structure	2024-12-09 10:32:19 +01:00
audit_64.c	x86/audit: Fix -Wmissing-variable-declarations warning for ia32_xyz_class	2023-08-30 10:11:16 +02:00
bootflag.c
callthunks.c	x86/xen: remove hypercall page	2024-12-19 18:11:36 +01:00
cet.c	x86/fred: Clear WFE in missing-ENDBRANCH #CPs	2025-01-09 13:31:52 +01:00
cfi.c
check.c
cpuid.c	x86/cpuid: make cpuid_class a static const structure	2023-08-05 08:31:41 +02:00
crash_core_32.c
crash_core_64.c
crash_dump_32.c
crash_dump_64.c
crash.c	ARM:	2023-09-07 13:52:20 -07:00
devicetree.c	of/fdt: add dt_phys arg to early_init_dt_scan and early_init_dt_verify	2024-12-09 10:31:56 +01:00
doublefault_32.c	x86: Avoid missing-prototype warnings for doublefault code	2023-05-18 11:56:18 -07:00
dumpstack_32.c
dumpstack_64.c
dumpstack.c	x86/dumpstack: Fix inaccurate unwinding from exception stacks due to misplaced assignment	2025-04-10 14:37:32 +02:00
e820.c	x86/e820: Fix handling of subpage regions when calculating nosave ranges in e820__register_nosave_regions()	2025-04-25 10:45:37 +02:00
early_printk.c
early-quirks.c
ebda.c
eisa.c	x86/sev: Skip ROM range scans and validation for SEV-SNP guests	2024-04-03 15:29:03 +02:00
espfix_64.c
ftrace_32.S	x86/ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL	2023-06-20 18:38:38 -04:00
ftrace_64.S	x86/ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL	2023-06-20 18:38:38 -04:00
ftrace.c	x86/its: Add support for ITS-safe return thunk	2025-05-18 08:24:11 +02:00
head_32.S	x86/microcode/32: Move early loading after paging enable	2025-03-07 16:45:50 +01:00
head_64.S	x86/smpboot/64: Handle X2APIC BIOS inconsistency gracefully	2024-01-01 12:42:47 +00:00
head32.c	x86/microcode: Consolidate the loader enablement checking	2025-05-18 08:24:08 +02:00
head64.c	x86/head/64: Move the __head definition to <asm/init.h>	2024-04-10 16:36:07 +02:00
hpet.c	rtc: Add support for configuring the UIP timeout for RTC reads	2024-01-31 16:18:56 -08:00
hw_breakpoint.c
i8237.c
i8253.c	x86/i8253: Call clockevent_i8253_disable() with interrupts disabled	2025-05-02 07:51:01 +02:00
i8259.c	x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility	2023-10-27 20:36:49 +02:00
ibt_selftest.S	x86/ibt: Convert IBT selftest to asm	2023-08-17 17:07:09 +02:00
idt.c	x86/entry: Convert INT 0x80 emulation to IDTENTRY	2023-12-13 18:45:02 +01:00
io_delay.c
ioport.c	x86/iopl: Cure TIF_IO_BITMAP inconsistencies	2025-06-19 15:28:46 +02:00
irq_32.c
irq_64.c
irq_work.c	x86/apic: Wrap IPI calls into helper functions	2023-08-09 12:00:55 -07:00
irq.c	x86/irq: Define trace events conditionally	2025-03-22 12:50:44 -07:00
irqflags.S
irqinit.c
itmt.c
jailhouse.c	xen: allow mapping ACPI data using a different physical address	2024-10-04 16:29:43 +02:00
jump_label.c
kdebugfs.c
kexec-bzimage64.c	Revert "x86, crash: wrap crash dumping code into crash related ifdefs"	2025-01-10 14:31:36 +01:00
kgdb.c	x86/kgdb: Fix a kerneldoc warning when build with W=1	2023-09-24 11:00:13 +02:00
ksysfs.c
kvm.c	Revert "x86, crash: wrap crash dumping code into crash related ifdefs"	2025-01-10 14:31:36 +01:00
kvmclock.c	x86/kvm: Do not try to disable kvmclock if it was not enabled	2024-01-25 15:35:48 -08:00
ldt.c	x86: allow get_locked_pte() to fail	2023-06-19 16:19:10 -07:00
machine_kexec_32.c
machine_kexec_64.c	x86/kexec: Allocate PGD for x86_64 transition page tables separately	2025-02-17 09:40:09 +01:00
Makefile	x86/boot/32: Disable stackprotector and tracing for mk_early_pgtbl_32()	2025-03-09 09:55:03 +01:00
mmconf-fam10h_64.c	xen: allow mapping ACPI data using a different physical address	2024-10-04 16:29:43 +02:00
module.c	x86/its: Use dynamic thunks for indirect branches	2025-05-18 08:24:11 +02:00
mpparse.c	Revert "x86/mpparse: Register APIC address only once"	2024-04-10 16:36:06 +02:00
msr.c	x86/MSR: make msr_class a static const structure	2023-08-05 08:31:42 +02:00
nmi_selftest.c	x86/apic: Wrap IPI calls into helper functions	2023-08-09 12:00:55 -07:00
nmi.c	x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus()	2025-06-04 14:42:05 +02:00
paravirt-spinlocks.c
paravirt.c	x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT	2025-04-25 10:45:37 +02:00
pci-dma.c	x86: always initialize xen-swiotlb when xen-pcifront is enabling	2023-07-31 17:54:27 +02:00
pcspeaker.c
perf_regs.c
platform-quirks.c	x86/quirks: Include linux/pnp.h for arch_pnpbios_disabled()	2023-05-18 11:56:18 -07:00
pmem.c
probe_roms.c	x86/sev: Skip ROM range scans and validation for SEV-SNP guests	2024-04-03 15:29:03 +02:00
process_32.c
process_64.c	x86/ptrace: Cleanup the definition of the pt_regs structure	2025-01-09 13:31:51 +01:00
process.c	x86/process: Move the buffer clearing before MONITOR	2025-07-10 16:03:21 +02:00
process.h
ptrace.c	x86: Add PTRACE interface for shadow stack	2023-08-02 15:01:51 -07:00
pvclock.c	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
quirks.c
reboot_fixups_32.c
reboot.c	x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus()	2025-06-04 14:42:05 +02:00
relocate_kernel_32.S
relocate_kernel_64.S	x86: Fix build regression with CONFIG_KEXEC_JUMP enabled	2024-12-14 20:00:20 +01:00
resource.c
rethook.c
rtc.c	rtc: Extend timeout for waiting for UIP to clear to 1s	2024-01-31 16:18:56 -08:00
setup_percpu.c	x86/apic/32: Remove x86_cpu_to_logical_apicid	2023-08-09 11:58:23 -07:00
setup.c	Revert "x86, crash: wrap crash dumping code into crash related ifdefs"	2025-01-10 14:31:36 +01:00
sev_verify_cbit.S
sev-shared.c	x86/sev: Move early startup code into .head.text section	2024-04-10 16:36:07 +02:00
sev.c	x86/sev: Move early startup code into .head.text section	2024-04-10 16:36:07 +02:00
shstk.c	x86/shstk: Make return uprobe work with shadow stack	2024-08-03 08:53:48 +02:00
signal_32.c	x86/ia32: Leave NULL selector values 0~3 unchanged	2025-04-25 10:45:10 +02:00
signal_64.c	x86/pkeys: Restore altstack access in sigreturn()	2024-10-10 11:57:29 +02:00
signal.c	x86/pkeys: Add PKRU as a parameter in signal handling functions	2024-10-10 11:57:29 +02:00
smp.c	Revert "x86, crash: wrap crash dumping code into crash related ifdefs"	2025-01-10 14:31:36 +01:00
smpboot.c	x86/microcode/32: Move early loading after paging enable	2025-03-07 16:45:50 +01:00
stacktrace.c
static_call.c	x86/its: Add support for ITS-safe return thunk	2025-05-18 08:24:11 +02:00
step.c
sys_ia32.c
sys_x86_64.c	x86/mm: Introduce MAP_ABOVE4G	2023-07-11 14:12:19 -07:00
tboot.c
time.c	x86: stop playing stack games in profile_pc()	2024-07-05 09:33:54 +02:00
tls.c
tls.h
topology.c	cpu-hotplug: Provide prototypes for arch CPU registration	2023-10-11 14:27:37 +02:00
trace_clock.c
trace.c
tracepoint.c
traps.c	x86/traps: Initialize DR6 by writing its architectural reset value	2025-07-10 16:03:13 +02:00
tsc_msr.c
tsc_sync.c	x86/tsc: Trust initial offset in architectural TSC-adjust MSRs	2024-06-12 11:11:17 +02:00
tsc.c	x86/tsc: Always save/restore TSC sched_clock() on suspend/resume	2025-04-10 14:37:42 +02:00
umip.c
unwind_frame.c
unwind_guess.c
unwind_orc.c	x86/unwind/orc: Fix unwind for newly forked tasks	2024-12-09 10:31:50 +01:00
uprobes.c	x86/shstk: Make return uprobe work with shadow stack	2024-08-03 08:53:48 +02:00
verify_cpu.S
vm86_32.c
vmlinux.lds.S	x86/its: Add support for ITS-safe return thunk	2025-05-18 08:24:11 +02:00
vsmp_64.c	x86/apic: Get rid of hard_smp_processor_id()	2023-08-09 11:58:17 -07:00
x86_init.c	xen: allow mapping ACPI data using a different physical address	2024-10-04 16:29:43 +02:00