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linux/arch/arm64/kernel
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Jean-Philippe Brucker a7c3acca53 arm64: smccc: Save lr before calling __arm_smccc_sve_check() 
Commit cfa7ff959a78 ("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: cfa7ff959a78 ("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
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +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
acpi.c
arm64: acpi: Map EFI_MEMORY_WT memory as Normal-NC
2021-06-01 18:53:53 +01:00
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
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
cpu_errata.c
arm64: kernel: disable CNP on Carmel
2021-03-25 10:00:23 +00:00
cpu_ops.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
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
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
docs: arm: convert docs to ReST and rename to *.rst
2019-07-15 09:20:24 -03:00
machine_kexec_file.c
arm64: Use common of_kexec_alloc_and_setup_fdt()
2021-03-08 12:06:29 -07:00
machine_kexec.c
set_memory: allow querying whether set_direct_map_*() is actually enabled
2021-07-08 11:48:20 -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
PCI: Constify struct pci_ecam_ops
2020-05-01 16:28:59 +01:00
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
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: 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
signal32.c
arm64: compat: Always use sigpage for sigreturn trampoline
2020-06-23 14:56:24 +01:00
signal.c
arm64: Kill 32-bit applications scheduled on 64-bit-only CPUs
2021-06-11 13:25:41 +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_spin_table.c
arm64: Rename arm64-internal cache maintenance functions
2021-05-25 19:27:49 +01:00
smp.c
arm64 updates for 5.14
2021-06-28 14:04:24 -07:00
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
sys32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452
2019-06-19 17:09:08 +02:00
sys_compat.c
arm64: Rename arm64-internal cache maintenance functions
2021-05-25 19:27:49 +01:00
sys.c
…
syscall.c
arm64: entry: Enable random_kstack_offset support
2021-04-08 14:12:19 +02:00
time.c
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
2020-02-12 17:26:38 +00:00
topology.c
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
vdso32-wrap.S
arm64: do not descend to vdso directories twice
2021-01-20 12:18:46 +00:00
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
vmlinux.lds.S
KVM: arm64: Page-align the .hyp sections
2021-03-19 12:02:18 +00:00