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

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2021-06-28 14:04:24 -07:00

vdso

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vdso32

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.gitignore

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acpi_numa.c

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acpi_parking_protocol.c

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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

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asm-offsets.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-06-28 15:40:51 -07:00

cacheinfo.c

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cpu_errata.c

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cpu_ops.c

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cpu-reset.h

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cpu-reset.S

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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

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crash_dump.c

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debug-monitors.c

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efi-entry.S

arm64: Rename arm64-internal cache maintenance functions

2021-05-25 19:27:49 +01:00

efi-header.S

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efi-rt-wrapper.S

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efi.c

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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

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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

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hyp-stub.S

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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

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io.c

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irq.c

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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

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kgdb.c

arm64: insn: decouple patching from insn code

2021-06-11 11:19:27 +01:00

kuser32.S

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machine_kexec_file.c

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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

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module.c

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mte.c

arm64: mte: fix restoration of GCR_EL1 from suspend

2021-07-15 17:34:46 +01:00

paravirt.c

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patching.c

Merge branch 'for-next/insn' into for-next/core

2021-06-24 14:03:24 +01:00

pci.c

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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

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pointer_auth.c

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process.c

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

2021-07-06 11:52:58 -07:00

proton-pack.c

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psci.c

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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

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reloc_test_syms.S

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relocate_kernel.S

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return_address.c

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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

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signal.c

arm64: Kill 32-bit applications scheduled on 64-bit-only CPUs

2021-06-11 13:25:41 +01:00

sigreturn32.S

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sleep.S

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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

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

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

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sys_compat.c

arm64: Rename arm64-internal cache maintenance functions

2021-05-25 19:27:49 +01:00

sys.c

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syscall.c

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time.c

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topology.c

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trace-events-emulation.h

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traps.c

Merge branch 'for-next/insn' into for-next/core

2021-06-24 14:03:24 +01:00

vdso32-wrap.S

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vdso-wrap.S

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vdso.c

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vmlinux.lds.S

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