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Will Deacon 532d581583 arm64: Treat SSBS as a non-strict system feature 
If all CPUs discovered during boot have SSBS, then spectre-v4 will be
considered to be "mitigated". However, we still allow late CPUs without
SSBS to be onlined, albeit with a "SANITY CHECK" warning. This is
problematic for userspace because it means that the system can quietly
transition to "Vulnerable" at runtime.

Avoid this by treating SSBS as a non-strict system feature: if all of
the CPUs discovered during boot have SSBS, then late arriving secondaries
better have it as well.

Signed-off-by: Will Deacon <will@kernel.org>
2020-09-29 16:08:16 +01:00
..
probes
vmalloc: fix the owner argument for the new __vmalloc_node_range callers
2020-07-03 16:15:25 -07:00
vdso
arm64/vdso: Add time namespace page
2020-07-24 13:15:20 +01:00
vdso32
ARM64: vdso32: Install vdso32 from vdso_install
2020-08-21 19:11:44 +01:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acpi_numa.c
acpi: Create subtable parsing infrastructure
2019-04-04 18:41:12 +02:00
acpi_parking_protocol.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
acpi.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
alternative.c
arm64/alternatives: don't patch up internal branches
2020-07-09 14:57:59 +01:00
armv8_deprecated.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
asm-offsets.c
KVM: arm64: Make struct kvm_regs userspace-only
2020-07-07 09:28:38 +01:00
cacheinfo.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
cpu_errata.c
arm64: Rewrite Spectre-v2 mitigation code
2020-09-29 16:08:15 +01:00
cpu_ops.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
cpu-reset.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpu-reset.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
cpufeature.c
arm64: Treat SSBS as a non-strict system feature
2020-09-29 16:08:16 +01:00
cpuidle.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
cpuinfo.c
arm64/cpuinfo: Remove unnecessary fallthrough annotation
2020-08-27 15:44:32 -05:00
crash_core.c
arm64/crash_core: Export TCR_EL1.T1SZ in vmcoreinfo
2020-07-02 17:56:49 +01:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
debug-monitors.c
arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
2020-07-16 11:42:12 +01:00
efi-entry.S
arm64 updates for 5.8
2020-06-01 15:18:27 -07:00
efi-header.S
arm64 updates for 5.8
2020-06-01 15:18:27 -07:00
efi-rt-wrapper.S
Merge branch 'for-next/scs' into for-next/core
2020-05-28 18:03:40 +01:00
efi.c
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
2019-07-12 11:05:46 -07:00
entry-common.c
arm64: entry: Fix the typo in the comment of el1_dbg()
2020-07-08 21:44:40 +01:00
entry-fpsimd.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
entry-ftrace.S
arm64: entry-ftrace.S: Update comment to indicate that x18 is live
2020-05-18 17:47:50 +01:00
entry.S
arm64: Remove Spectre-related CONFIG_* options
2020-09-29 16:08:15 +01:00
fpsimd.c
arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n
2020-06-16 18:29:11 +01:00
ftrace.c
arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS
2020-06-08 15:44:59 +01:00
head.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
hibernate-asm.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
hibernate.c
mm: consolidate pte_index() and pte_offset_*() definitions
2020-06-09 09:39:14 -07:00
hw_breakpoint.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
hyp-stub.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
image-vars.h
KVM: arm64: Add kvm_extable for vaxorcism code
2020-08-28 15:23:42 +01:00
image.h
arm64/efi: Move variable assignments after SECTIONS
2019-08-14 17:18:15 +01:00
insn.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
io.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
jump_label.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kaslr.c
arm64: kaslr: Use standard early random function
2020-08-07 09:10:11 -07:00
kexec_image.c
arm64: kexec_file: add crash dump support
2020-01-08 17:05:23 +00:00
kgdb.c
arm64: kgdb: Fix single-step exception handling oops
2020-07-08 22:18:54 +01:00
kuser32.S
docs: arm: convert docs to ReST and rename to *.rst
2019-07-15 09:20:24 -03:00
machine_kexec_file.c
arm64: kexec_file: Use struct_size() in kmalloc()
2020-06-18 10:45:20 +01:00
machine_kexec.c
arm64: fix the flush_icache_range arguments in machine_kexec
2020-05-11 12:02:14 +01:00
Makefile
arm64: Introduce separate file for spectre mitigations and reporting
2020-09-29 16:08:15 +01:00
module-plts.c
arm64/module: Optimize module load time by optimizing PLT counting
2020-07-02 12:17:13 +01:00
module.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
module.lds
arm64: ftrace: emit ftrace-mod.o contents through code
2017-12-01 13:04:59 +00:00
paravirt.c
firmware: smccc: Drop smccc_version enum and use ARM_SMCCC_VERSION_1_x instead
2020-05-20 19:10:37 +01:00
pci.c
PCI: Constify struct pci_ecam_ops
2020-05-01 16:28:59 +01:00
perf_callchain.c
arm64: stacktrace: Factor out backtrace initialisation
2019-07-22 11:44:08 +01:00
perf_event.c
arm64: perf: Expose some new events via sysfs
2020-07-21 12:59:42 +01:00
perf_regs.c
arm64: perf: Report the PC value in REGS_ABI_32 mode
2020-06-25 14:47:04 +01:00
pointer_auth.c
arm64: install user ptrauth keys at kernel exit time
2020-03-18 09:50:19 +00:00
process.c
cpuidle: Move trace_cpu_idle() into generic code
2020-08-26 12:41:54 +02:00
proton-pack.c
arm64: Rewrite Spectre-v2 mitigation code
2020-09-29 16:08:15 +01:00
psci.c
arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
2019-10-25 16:29:11 +01:00
ptrace.c
Merge branch 'work.regset' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-07 09:29:25 -07:00
reloc_test_core.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
reloc_test_syms.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
relocate_kernel.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
return_address.c
arm64: unwind: Prohibit probing on return_address()
2019-08-01 15:00:26 +01:00
scs.c
scs: Move DEFINE_SCS macro into core code
2020-05-18 17:47:48 +01:00
sdei.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
setup.c
- Fix tegra194-cpufreq module build failure caused __cpu_logical_map
2020-08-08 14:16:12 -07:00
signal32.c
arm64: compat: Always use sigpage for sigreturn trampoline
2020-06-23 14:56:24 +01:00
signal.c
arm64: ptrace: Consistently use pseudo-singlestep exceptions
2020-07-16 11:41:07 +01:00
sigreturn32.S
arm64: compat: Split kuser32
2019-04-23 18:01:57 +01:00
sleep.S
Merge branch 'for-next/bti' into for-next/core
2020-05-28 18:00:51 +01:00
smccc-call.S
arm64: kernel: Convert to modern annotations for assembly functions
2020-05-04 12:46:03 +01:00
smp_spin_table.c
arm64: prefer __section from compiler_attributes.h
2019-08-13 18:32:15 +01:00
smp.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ssbd.c
Return ENODEV when the selected speculation misfeature is unsupported
2020-01-08 17:27:41 +00:00
stacktrace.c
arm64: stacktrace: Move export for save_stack_trace_tsk()
2020-07-14 19:16:25 +01:00
suspend.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
sys32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452
2019-06-19 17:09:08 +02:00
sys_compat.c
arm64: Silence clang warning on mismatched value/register sizes
2019-10-28 09:13:21 +00:00
sys.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
syscall.c
arm64: syscall: Expand the comment about ptrace and syscall(-1)
2020-07-16 11:41:58 +01:00
time.c
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
2020-02-12 17:26:38 +00:00
topology.c
arm64: use activity monitors for frequency invariance
2020-03-06 16:02:50 +00:00
trace-events-emulation.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
traps.c
arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack
2020-07-31 18:05:36 +01:00
vdso.c
arm64/vdso: Restrict splitting VVAR VMA
2020-07-24 18:06:52 +01:00
vmlinux.lds.S
KVM: arm64: Add kvm_extable for vaxorcism code
2020-08-28 15:23:42 +01:00