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Mark Brown b48f562dcf arm64/sme: Restore SMCR_EL1.EZT0 on exit from suspend 
[ Upstream commit d7b77a0d56 ]

The fields in SMCR_EL1 reset to an architecturally UNKNOWN value. Since we
do not otherwise manage the traps configured in this register at runtime we
need to reconfigure them after a suspend in case nothing else was kind
enough to preserve them for us. Do so for SMCR_EL1.EZT0.

Fixes: d4913eee15 ("arm64/sme: Add basic enumeration for SME2")
Reported-by: Jackson Cooper-Driver <Jackson.Cooper-Driver@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240213-arm64-sme-resume-v3-2-17e05e493471@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01 13:41:56 +01:00
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pi
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probes
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vdso
kbuild: unify vdso_install rules
2023-10-28 21:09:02 +09:00
vdso32
kbuild: unify vdso_install rules
2023-10-28 21:09:02 +09:00
.gitignore
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acpi_numa.c
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acpi_parking_protocol.c
arm64: smp: Remove dedicated wakeup IPI
2023-09-25 17:15:28 +01:00
acpi.c
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alternative.c
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armv8_deprecated.c
arm: Remove now superfluous sentinel elem from ctl_table arrays
2023-10-10 15:22:02 -07:00
asm-offsets.c
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cacheinfo.c
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compat_alignment.c
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cpu_errata.c
arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata
2024-02-23 09:51:53 +01:00
cpu_ops.c
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cpu-reset.S
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cpufeature.c
arm64: Avoid enabling KPTI unnecessarily
2023-11-30 19:07:33 +00:00
cpuidle.c
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cpuinfo.c
arm64: add FEAT_LSE128 HWCAP
2023-10-13 19:12:34 +01:00
crash_core.c
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crash_dump.c
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debug-monitors.c
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efi-header.S
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efi-rt-wrapper.S
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efi.c
Merge tag 'tty-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2023-11-03 15:44:25 -10:00
elfcore.c
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entry-common.c
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entry-fpsimd.S
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entry-ftrace.S
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entry.S
arm64: entry: fix ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
2024-01-31 16:21:01 -08:00
fpsimd.c
arm64/sme: Restore SMCR_EL1.EZT0 on exit from suspend
2024-03-01 13:41:56 +01:00
ftrace.c
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head.S
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hibernate-asm.S
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hibernate.c
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hw_breakpoint.c
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hyp-stub.S
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idle.c
arm64: idle: Tag the arm64 idle functions as __cpuidle
2023-09-25 17:15:28 +01:00
idreg-override.c
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image-vars.h
efi: move screen_info into efi init code
2023-10-17 16:33:39 +02:00
image.h
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io.c
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irq.c
arm64: irq: set the correct node for shadow call stack
2024-02-05 20:17:11 +00:00
jump_label.c
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kaslr.c
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kexec_image.c
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kgdb.c
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kuser32.S
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machine_kexec_file.c
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machine_kexec.c
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Makefile
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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
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mte.c
Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 19:38:47 -10:00
paravirt.c
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patch-scs.c
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patching.c
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pci.c
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perf_callchain.c
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perf_regs.c
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pointer_auth.c
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process.c
Merge tag 'sysctl-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
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
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ptrace.c
arm64/ptrace: Don't flush ZA/ZT storage when writing ZA via ptrace
2024-01-25 15:45:30 -08:00
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
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setup.c
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signal32.c
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signal.c
arm64/signal: Don't assume that TIF_SVE means we saved SVE state
2024-02-23 09:51:53 +01:00
sigreturn32.S
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sleep.S
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smccc-call.S
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smp_spin_table.c
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smp.c
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2023-11-10 12:22:14 -08:00
stacktrace.c
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suspend.c
arm64/sme: Restore SME registers on exit from suspend
2024-03-01 13:41:56 +01:00
sys32.c
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sys_compat.c
arm64: Avoid cpus_have_const_cap() for ARM64_WORKAROUND_1542419
2023-10-16 14:17:06 +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 tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2023-11-02 15:45:15 -10:00
vdso32-wrap.S
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vdso-wrap.S
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vdso.c
arm64: Avoid cpus_have_const_cap() for ARM64_HAS_BTI
2023-10-16 14:17:04 +01:00
vmlinux.lds.S
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watchdog_hld.c
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