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Mark Brown b3412bb868 arm64/ptrace: Use saved floating point state type to determine SVE layout 
commit b017a0cea6 upstream.

The SVE register sets have two different formats, one of which is a wrapped
version of the standard FPSIMD register set and another with actual SVE
register data. At present we check TIF_SVE to see if full SVE register
state should be provided when reading the SVE regset but if we were in a
syscall we may have saved only floating point registers even though that is
set.

Fix this and simplify the logic by checking and using the format which we
recorded when deciding if we should use FPSIMD or SVE format.

Fixes: 8c845e2731 ("arm64/sve: Leave SVE enabled on syscall if we don't context switch")
Cc: <stable@vger.kernel.org> # 6.2.x
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240325-arm64-ptrace-fp-type-v1-1-8dc846caf11f@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-10 16:38:19 +02:00
..
pi arm64: kernel: Disable latent_entropy GCC plugin in early C runtime 2023-12-12 11:06:27 +00:00
probes arm64: kprobes: Drop ID map text from kprobes blacklist 2023-02-07 18:25:10 +00:00
vdso kbuild: unify vdso_install rules 2023-10-28 21:09:02 +09:00
vdso32 arm64: vdso32: Remove unused vdso32-offsets.h 2024-01-30 11:59:17 +00:00
.gitignore
acpi.c arm64: acpi: Fix possible memory leak of ffh_ctxt 2023-02-24 14:21:49 +00:00
acpi_numa.c
acpi_parking_protocol.c arm64: smp: Remove dedicated wakeup IPI 2023-09-25 17:15:28 +01:00
alternative.c Merge branches 'for-next/kpti', 'for-next/missing-proto-warn', 'for-next/iss2-decode', 'for-next/kselftest', 'for-next/misc', 'for-next/feat_mops', 'for-next/module-alloc', 'for-next/sysreg', 'for-next/cpucap', 'for-next/acpi', 'for-next/kdump', 'for-next/acpi-doc', 'for-next/doc' and 'for-next/tpidr2-fix', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2023-06-23 18:32:20 +01:00
armv8_deprecated.c arm: Remove now superfluous sentinel elem from ctl_table arrays 2023-10-10 15:22:02 -07:00
asm-offsets.c arm64: fpsimd: Bring cond_yield asm macro in line with new rules 2024-01-12 12:48:27 +00:00
cacheinfo.c cacheinfo: Add arm64 early level initializer implementation 2023-04-13 09:32:33 +01:00
compat_alignment.c arm64: compat: Work around uninitialized variable warning 2023-04-05 17:51:47 +01:00
cpu-reset.S arm64: kernel: remove SHF_WRITE|SHF_EXECINSTR from .idmap.text 2023-05-02 12:42:22 +01:00
cpu_errata.c arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata 2024-02-15 11:47:22 +00:00
cpu_ops.c
cpufeature.c Generic: 2024-01-17 13:03:37 -08:00
cpuidle.c arm64: Explicitly include correct DT includes 2023-07-31 14:45:38 +01:00
cpuinfo.c arm64: Kill detection of VPIPT i-cache policy 2023-12-05 11:38:03 +00:00
crash_core.c arm64: move PAC masks to <asm/pointer_auth.h> 2023-04-13 12:27:11 +01:00
crash_dump.c
debug-monitors.c arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step 2023-04-14 13:39:47 +01:00
efi-header.S arm64: efi: Enable BTI codegen and add PE/COFF annotation 2023-04-20 15:43:45 +02:00
efi-rt-wrapper.S
efi.c TTY/Serial changes for 6.7-rc1 2023-11-03 15:44:25 -10:00
elfcore.c
entry-common.c arm64: syscall: unmask DAIF earlier for SVCs 2023-08-11 12:23:48 +01:00
entry-fpsimd.S arm64/sme: Implement context switching for ZT0 2023-01-20 12:23:06 +00:00
entry-ftrace.S arm64: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL 2023-06-20 18:38:37 -04:00
entry.S arm64: entry: simplify kernel_exit logic 2024-01-18 11:00:09 +00:00
fpsimd.c arm64/sme: Restore SMCR_EL1.EZT0 on exit from suspend 2024-02-20 12:19:16 +00:00
ftrace.c arm64: module: mandate MODULE_PLTS 2023-06-06 17:39:05 +01:00
head.S arm64: mm: get rid of kimage_vaddr global variable 2023-12-12 11:06:28 +00:00
hibernate-asm.S
hibernate.c arm64: hibernate: remove WARN_ON in save_processor_state 2023-06-21 13:33:49 +01:00
hw_breakpoint.c hw_breakpoint: fix single-stepping when using bpf_overflow_handler 2023-08-18 17:04:09 +01:00
hyp-stub.S ARM64: 2023-07-03 15:32:22 -07:00
idle.c arm64: idle: Tag the arm64 idle functions as __cpuidle 2023-09-25 17:15:28 +01:00
idreg-override.c arm64/kernel: Move 'nokaslr' parsing out of early idreg code 2023-12-12 11:13:53 +00:00
image-vars.h efi: move screen_info into efi init code 2023-10-17 16:33:39 +02:00
image.h
io.c
irq.c arm64: irq: set the correct node for shadow call stack 2023-12-13 12:09:00 +00:00
jump_label.c
kaslr.c arm64/kernel: Move 'nokaslr' parsing out of early idreg code 2023-12-12 11:13:53 +00:00
kexec_image.c kexec_file, arm64: print out debugging message if required 2023-12-20 15:02:57 -08:00
kgdb.c arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step 2023-04-14 13:39:47 +01:00
kuser32.S arm64: Update Documentation/arm references 2023-06-12 06:33:48 -06:00
machine_kexec.c kexec_file, arm64: print out debugging message if required 2023-12-20 15:02:57 -08:00
machine_kexec_file.c kexec_file, arm64: print out debugging message if required 2023-12-20 15:02:57 -08:00
Makefile arm64: scs: Disable LTO for SCS patching code 2024-01-30 11:52:46 +00:00
module-plts.c Merge branch 'for-next/cpus_have_const_cap' into for-next/core 2023-10-26 17:10:18 +01:00
module.c arm64: module: rework module VA range selection 2023-06-06 17:39:06 +01:00
mte.c Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
paravirt.c
patch-scs.c arm64: Apply dynamic shadow call stack patching in two passes 2023-01-26 17:54:15 +00:00
patching.c arm64: patching: Add aarch64_insn_write_literal_u64() 2023-01-24 11:49:43 +00:00
pci.c arm64: Explicitly include correct DT includes 2023-07-31 14:45:38 +01:00
perf_callchain.c arm64: use XPACLRI to strip PAC 2023-04-13 12:27:11 +01:00
perf_regs.c
pointer_auth.c
process.c sysctl-6.7-rc1 2023-11-01 20:51:41 -10:00
proton-pack.c arm64: Avoid cpus_have_const_cap() for ARM64_UNMAP_KERNEL_AT_EL0 2023-10-16 14:17:06 +01:00
psci.c
ptrace.c arm64/ptrace: Use saved floating point state type to determine SVE layout 2024-04-10 16:38:19 +02:00
reloc_test_core.c
reloc_test_syms.S
relocate_kernel.S
return_address.c
sdei.c arm64: sdei: abort running SDEI handlers during crash 2023-08-04 17:35:33 +01:00
setup.c arm64: convert to arch_cpu_is_hotpluggable() 2023-12-06 12:41:49 +09:00
signal.c arm64/signal: Don't assume that TIF_SVE means we saved SVE state 2024-02-09 16:34:23 +00:00
signal32.c x86/shstk: Add user control-protection fault handler 2023-08-02 15:01:50 -07:00
sigreturn32.S
sleep.S arm64: kernel: remove SHF_WRITE|SHF_EXECINSTR from .idmap.text 2023-05-02 12:42:22 +01:00
smccc-call.S
smp.c arm64: Align boot cpucap handling with system cpucap handling 2023-12-13 16:02:01 +00:00
smp_spin_table.c
stacktrace.c arm64: prohibit probing on arch_kunwind_consume_entry() 2024-03-04 13:00:00 +00:00
suspend.c arm64/sme: Restore SME registers on exit from suspend 2024-02-20 12:19:15 +00:00
sys.c
sys32.c
sys_compat.c arm64: Avoid cpus_have_const_cap() for ARM64_WORKAROUND_1542419 2023-10-16 14:17:06 +01:00
syscall.c arm64: syscall: unmask DAIF earlier for SVCs 2023-08-11 12:23:48 +01:00
time.c
topology.c arm64/amu: Use capacity_ref_freq() to set AMU ratio 2023-12-23 15:52:36 +01:00
trace-events-emulation.h
traps.c ARM: 2023-11-02 15:45:15 -10:00
vdso-wrap.S
vdso.c arm64: Avoid cpus_have_const_cap() for ARM64_HAS_BTI 2023-10-16 14:17:04 +01:00
vdso32-wrap.S
vmlinux.lds.S arm64: lds: move .got section out of .text 2023-05-02 13:12:45 +01:00
watchdog_hld.c arm64: enable perf events based hard lockup detector 2023-06-09 17:44:22 -07:00