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linux-stable/arch/arm64/kernel
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Jean-Philippe Brucker a7c3acca53 arm64: smccc: Save lr before calling __arm_smccc_sve_check() 
Commit cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register
saving hint") added a call to __arm_smccc_sve_check() which clobbers the
lr (register x30), causing __arm_smccc_hvc() to return to itself and
crash. Save lr on the stack before calling __arm_smccc_sve_check(). Save
the frame pointer (x29) to complete the frame record, and adjust the
offsets used to access stack parameters.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Fixes: cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register saving hint")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20210721071834.69130-1-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
2021-07-21 11:23:25 +01:00
..
probes arm64 updates for 5.14 2021-06-28 14:04:24 -07:00
vdso arm64/vdso: Discard .note.gnu.property sections in vDSO 2021-04-30 18:25:39 +01:00
vdso32 arm64: vdso32: drop -no-integrated-as flag 2021-04-23 14:17:50 +01:00
.gitignore
acpi.c arm64: acpi: Map EFI_MEMORY_WT memory as Normal-NC 2021-06-01 18:53:53 +01:00
acpi_numa.c arm64, numa: Change the numa init functions name to be generic 2021-01-14 15:08:54 -08:00
acpi_parking_protocol.c arm64: use function_nocfi with __pa_symbol 2021-04-08 16:04:22 -07:00
alternative.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
armv8_deprecated.c arm64: uaccess: rename privileged uaccess routines 2020-12-02 19:49:10 +00:00
asm-offsets.c ARM: 2021-06-28 15:40:51 -07:00
cacheinfo.c
cpu-reset.h arm64: add __nocfi to functions that jump to a physical address 2021-04-08 16:04:22 -07:00
cpu-reset.S arm64: Use INIT_SCTLR_EL1_MMU_OFF to disable the MMU on CPU restart 2021-03-18 15:51:07 +00:00
cpu_errata.c arm64: kernel: disable CNP on Carmel 2021-03-25 10:00:23 +00:00
cpu_ops.c
cpufeature.c arm64: Add missing header <asm/smp.h> in two files 2021-07-12 13:37:34 +01:00
cpuidle.c arm64: kernel: Update the stale comment 2021-05-06 12:26:26 +01:00
cpuinfo.c arm64: cpuinfo: Split AArch32 registers out into a separate struct 2021-06-11 13:25:40 +01:00
crash_core.c arm64/crash_core: Export TCR_EL1.T1SZ in vmcoreinfo 2020-07-02 17:56:49 +01:00
crash_dump.c arm64: kdump: update ppos when reading elfcorehdr 2021-03-22 12:46:38 +00:00
debug-monitors.c arm64: expose FAR_EL1 tag bits in siginfo 2020-11-23 18:17:39 +00:00
efi-entry.S arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
efi-header.S arm64: head: tidy up the Image header definition 2020-11-17 16:14:20 +00:00
efi-rt-wrapper.S Merge branch 'for-next/scs' into for-next/core 2020-05-28 18:03:40 +01:00
efi.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
entry-common.c arm64: entry: add missing noinstr 2021-07-15 17:36:51 +01:00
entry-fpsimd.S arm64/sve: Skip flushing Z registers with 128 bit vectors 2021-05-26 20:04:28 +01:00
entry-ftrace.S arm64: rename S_FRAME_SIZE to PT_REGS_SIZE 2021-01-13 15:09:06 +00:00
entry.S Merge branch 'for-next/entry' into for-next/core 2021-06-24 14:01:55 +01:00
fpsimd.c arm64/sve: Skip flushing Z registers with 128 bit vectors 2021-05-26 20:04:28 +01:00
ftrace.c arm64: insn: decouple patching from insn code 2021-06-11 11:19:27 +01:00
head.S Merge branch 'for-next/mm' into for-next/core 2021-06-24 14:04:33 +01:00
hibernate-asm.S arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
hibernate.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
hw_breakpoint.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hyp-stub.S Merge remote-tracking branch 'arm64/for-next/vhe-only' into kvmarm-master/next 2021-04-13 15:42:40 +01:00
idle.c Merge branch 'for-next/entry' into for-next/core 2021-06-24 14:01:55 +01:00
idreg-override.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
image-vars.h arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
image.h arm64: get rid of TEXT_OFFSET 2020-09-07 15:00:52 +01:00
io.c
irq.c arm64: irq: allow FIQs to be handled 2021-03-24 20:19:30 +00:00
jump_label.c arm64: insn: decouple patching from insn code 2021-06-11 11:19:27 +01:00
kaslr.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
kexec_image.c arm64: kexec_file: Fix sparse warning 2020-11-10 13:11:44 +00:00
kgdb.c arm64: insn: decouple patching from insn code 2021-06-11 11:19:27 +01:00
kuser32.S
machine_kexec.c set_memory: allow querying whether set_direct_map_*() is actually enabled 2021-07-08 11:48:20 -07:00
machine_kexec_file.c arm64: Use common of_kexec_alloc_and_setup_fdt() 2021-03-08 12:06:29 -07:00
Makefile arm64: entry: fix KCOV suppression 2021-07-15 17:37:55 +01:00
module-plts.c arm64: improve whitespace 2021-02-04 13:59:49 +00:00
module.c arm64: kaslr: support randomized module area with KASAN_VMALLOC 2021-03-29 12:35:05 +01:00
mte.c arm64: mte: fix restoration of GCR_EL1 from suspend 2021-07-15 17:34:46 +01:00
paravirt.c x86/paravirt: Switch time pvops functions to use static_call() 2021-03-11 16:17:52 +01:00
patching.c Merge branch 'for-next/insn' into for-next/core 2021-06-24 14:03:24 +01:00
pci.c
perf_callchain.c arm64: stacktrace: Relax frame record alignment requirement to 8 bytes 2021-05-26 20:01:17 +01:00
perf_event.c arm64: perf: Simplify EVENT ATTR macro in perf_event.c 2021-06-11 11:18:41 +01:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
pointer_auth.c arm64: pac: Optimize kernel entry/exit key installation code paths 2021-04-13 17:31:44 +01:00
process.c ARM development updates for 5.14-rc1: 2021-07-06 11:52:58 -07:00
proton-pack.c Merge remote-tracking branch 'arm64/for-next/fixes' into for-next/core 2020-12-09 18:04:55 +00:00
psci.c arm64: use function_nocfi with __pa_symbol 2021-04-08 16:04:22 -07:00
ptrace.c arm64: Change the on_*stack functions to take a size argument 2021-05-26 20:01:17 +01:00
reloc_test_core.c
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: kexec: arm64_relocate_new_kernel don't use x0 as temp 2021-01-27 15:41:12 +00:00
return_address.c arm64: stacktrace: Make stack walk callback consistent with generic code 2020-09-18 14:24:16 +01:00
sdei.c Merge branch 'for-next/entry' into for-next/core 2021-06-24 14:01:55 +01:00
setup.c arm64: convert to setup_initial_init_mm() 2021-07-08 11:48:21 -07:00
signal.c arm64: Kill 32-bit applications scheduled on 64-bit-only CPUs 2021-06-11 13:25:41 +01:00
signal32.c arm64: compat: Always use sigpage for sigreturn trampoline 2020-06-23 14:56:24 +01:00
sigreturn32.S
sleep.S kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
smccc-call.S arm64: smccc: Save lr before calling __arm_smccc_sve_check() 2021-07-21 11:23:25 +01:00
smp.c arm64 updates for 5.14 2021-06-28 14:04:24 -07:00
smp_spin_table.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
stacktrace.c arm64: stacktrace: use %pSb for backtrace printing 2021-07-08 11:48:22 -07:00
suspend.c arm64: suspend: Use cpuidle context helpers in cpu_suspend() 2021-06-17 18:00:39 +01:00
sys.c
sys32.c
sys_compat.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
syscall.c arm64: entry: Enable random_kstack_offset support 2021-04-08 14:12:19 +02:00
time.c
topology.c arch_topology: Allow multiple entities to provide sched_freq_tick() callback 2021-03-10 10:55:37 +05:30
trace-events-emulation.h
traps.c Merge branch 'for-next/insn' into for-next/core 2021-06-24 14:03:24 +01:00
vdso-wrap.S arm64: do not descend to vdso directories twice 2021-01-20 12:18:46 +00:00
vdso.c Merge branches 'for-next/misc', 'for-next/kselftest', 'for-next/xntable', 'for-next/vdso', 'for-next/fiq', 'for-next/epan', 'for-next/kasan-vmalloc', 'for-next/fgt-boot-init', 'for-next/vhe-only' and 'for-next/neon-softirqs-disabled', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2021-04-15 14:00:38 +01:00
vdso32-wrap.S arm64: do not descend to vdso directories twice 2021-01-20 12:18:46 +00:00
vmlinux.lds.S KVM: arm64: Page-align the .hyp sections 2021-03-19 12:02:18 +00:00