linux_dsm_epyc7002/arch/arm64/kernel
Mark Rutland e533dbe9dc arm64: acpi: fix DAIF manipulation with pNMI
Since commit:

  d44f1b8dd7 ("arm64: KVM/mm: Move SEA handling behind a single 'claim' interface")

... the top-level APEI SEA handler has the shape:

1. current_flags = arch_local_save_flags()
2. local_daif_restore(DAIF_ERRCTX)
3. <GHES handler>
4. local_daif_restore(current_flags)

However, since commit:

  4a503217ce ("arm64: irqflags: Use ICC_PMR_EL1 for interrupt masking")

... when pseudo-NMIs (pNMIs) are in use, arch_local_save_flags() will save
the PMR value rather than the DAIF flags.

The combination of these two commits means that the APEI SEA handler will
erroneously attempt to restore the PMR value into DAIF. Fix this by
factoring local_daif_save_flags() out of local_daif_save(), so that we
can consistently save DAIF in step #1, regardless of whether pNMIs are in
use.

Both commits were introduced concurrently in v5.0.

Cc: <stable@vger.kernel.org>
Fixes: 4a503217ce ("arm64: irqflags: Use ICC_PMR_EL1 for interrupt masking")
Fixes: d44f1b8dd7 ("arm64: KVM/mm: Move SEA handling behind a single 'claim' interface")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Julien Thierry <julien.thierry.kdev@gmail.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-01-22 14:41:22 +00:00
..
probes arm64: remove __exception annotations 2019-10-28 11:22:38 +00:00
vdso arm64: vdso: Remove stale files from old assembly implementation 2019-10-07 11:07:16 +01:00
vdso32 arm64: vdso32: Rename COMPATCC to CC_COMPAT 2019-10-07 13:32:13 +01:00
.gitignore
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 arm64: acpi: fix DAIF manipulation with pNMI 2020-01-22 14:41:22 +00:00
alternative.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
armv8_deprecated.c arm64: armv8_deprecated: update the comments of armv8_deprecated_init() 2020-01-08 17:29:41 +00:00
asm-offsets.c arm64: asm-offsets: add S_FP 2019-11-06 14:17:34 +00:00
cacheinfo.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
cpu_errata.c Merge branch 'for-next/errata' into for-next/core 2020-01-22 11:35:05 +00:00
cpu_ops.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
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: avoid x18 in __cpu_soft_restart 2020-01-16 17:32:56 +00:00
cpufeature.c Merge branch 'for-next/rng' into for-next/core 2020-01-22 11:38:53 +00:00
cpuidle.c PSCI: cpuidle: Refactor CPU suspend power_state parameter handling 2019-08-09 17:51:39 +01:00
cpuinfo.c Merge branch 'for-next/rng' into for-next/core 2020-01-22 11:38:53 +00:00
crash_core.c arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE 2018-09-11 11:08:49 +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: Remove unneeded rcu_read_lock from debug handlers 2019-08-01 15:00:27 +01:00
efi-entry.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
efi-header.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
efi-rt-wrapper.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
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: cleanup el0 svc handler naming 2020-01-17 13:22:14 +00:00
entry-fpsimd.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
entry-ftrace.S arm64: ftrace: fix ifdeffery 2019-12-06 13:25:14 +00:00
entry.S Merge branch 'for-next/asm-annotations' into for-next/core 2020-01-22 11:34:21 +00:00
fpsimd.c arm64: nofpsmid: Handle TIF_FOREIGN_FPSTATE flag cleanly 2020-01-14 17:11:53 +00:00
ftrace.c arm64: ftrace: minimize ifdeffery 2019-11-06 14:17:36 +00:00
head.S Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
hibernate-asm.S arm64: mm: Logic to make offset_ttbr1 conditional 2019-08-09 11:17:24 +01:00
hibernate.c arm64: hibernate: add trans_pgd public functions 2020-01-08 16:55:12 +00:00
hw_breakpoint.c Printk changes for 5.5 2019-11-25 19:40:40 -08:00
hyp-stub.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
image-vars.h arm64/efi: Move variable assignments after SECTIONS 2019-08-14 17:18:15 +01:00
image.h arm64/efi: Move variable assignments after SECTIONS 2019-08-14 17:18:15 +01:00
insn.c arm64: insn: consistently handle exit text 2019-12-04 11:32:20 +00:00
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: Use v8.5-RNG entropy for KASLR seed 2020-01-22 09:54:52 +00:00
kexec_image.c arm64: kexec_file: add crash dump support 2020-01-08 17:05:23 +00:00
kgdb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
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: add crash dump support 2020-01-08 17:05:23 +00:00
machine_kexec.c Revert "arm64: kexec: make dtb_mem always enabled" 2020-01-10 16:00:50 +00:00
Makefile arm64: entry: convert el1_sync to C 2019-10-28 11:22:47 +00:00
module-plts.c arm64: implement ftrace with regs 2019-11-06 14:17:35 +00:00
module.c arm64: implement ftrace with regs 2019-11-06 14:17:35 +00:00
module.lds arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00
paravirt.c arm64: Retrieve stolen time as paravirtualized guest 2019-10-21 19:20:31 +01:00
pci.c pci-v5.3-changes 2019-07-15 20:44:49 -07:00
perf_callchain.c arm64: stacktrace: Factor out backtrace initialisation 2019-07-22 11:44:08 +01:00
perf_event.c arm64: perf: Simplify the ARMv8 PMUv3 event attributes 2019-11-01 14:51:19 +00:00
perf_regs.c compat: Move compat_timespec/ timeval to compat_time.h 2018-04-19 13:29:54 +02:00
pointer_auth.c arm64: ptr auth: Move per-thread keys from thread_info to thread_struct 2018-12-13 16:42:47 +00:00
process.c arm64: Introduce system_capabilities_finalized() marker 2020-01-14 17:10:21 +00:00
psci.c arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill() 2019-10-25 16:29:11 +01:00
ptrace.c arm64: ptrace: nofpsimd: Fail FP/SIMD regset operations 2020-01-14 17:11:39 +00:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
relocate_kernel.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
return_address.c arm64: unwind: Prohibit probing on return_address() 2019-08-01 15:00:26 +01:00
sdei.c firmware: arm_sdei: use common SMCCC_CONDUIT_* 2019-10-14 10:55:14 +01:00
setup.c arm64: Use a variable to store non-global mappings decision 2020-01-15 14:11:18 +00:00
signal32.c arm64: signal: nofpsimd: Handle fp/simd context for signal frames 2020-01-14 17:11:46 +00:00
signal.c arm64: signal: nofpsimd: Handle fp/simd context for signal frames 2020-01-14 17:11:46 +00:00
sigreturn32.S arm64: compat: Split kuser32 2019-04-23 18:01:57 +01:00
sleep.S arm64: kernel: use aff3 instead of aff2 in comment 2019-06-04 14:51:01 +01:00
smccc-call.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
smp_spin_table.c arm64: prefer __section from compiler_attributes.h 2019-08-13 18:32:15 +01:00
smp.c arm64 updates for 5.5: 2019-12-06 14:18:01 -08:00
ssbd.c Return ENODEV when the selected speculation misfeature is unsupported 2020-01-08 17:27:41 +00:00
stacktrace.c arm64: unwind: Prohibit probing on return_address() 2019-08-01 15:00:26 +01:00
suspend.c arm64: mm: Support Common Not Private translations 2018-09-18 12:02:27 +01:00
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: entry: cleanup el0 svc handler naming 2020-01-17 13:22:14 +00:00
time.c arm64: Retrieve stolen time as paravirtualized guest 2019-10-21 19:20:31 +01:00
topology.c Merge tag 'common/for-v5.4-rc1/cpu-topology' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into for-next/cpu-topology 2019-08-14 10:07:00 +01:00
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 Merge branch 'for-next/entry-s-to-c' into for-next/core 2019-10-28 17:02:56 +00:00
vdso.c arm64: compat: VDSO setup for compat layer 2019-06-22 21:21:08 +02:00
vmlinux.lds.S arm64 updates for 5.5: 2019-12-06 14:18:01 -08:00