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-rw-r--r--arch/arm64/Kconfig29
1 files changed, 24 insertions, 5 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4780eb7af842..697ea0510729 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config ARM64
def_bool y
select ACPI_CCA_REQUIRED if ACPI
@@ -68,7 +69,7 @@ config ARM64
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_INT128 if GCC_VERSION >= 50000 || CC_IS_CLANG
select ARCH_SUPPORTS_NUMA_BALANCING
- select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+ select ARCH_WANT_COMPAT_IPC_PARSE_VERSION if COMPAT
select ARCH_WANT_FRAME_POINTERS
select ARCH_HAS_UBSAN_SANITIZE_ALL
select ARM_AMBA
@@ -475,16 +476,15 @@ config ARM64_ERRATUM_1024718
If unsure, say Y.
-config ARM64_ERRATUM_1188873
+config ARM64_ERRATUM_1418040
bool "Cortex-A76/Neoverse-N1: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result"
default y
depends on COMPAT
- select ARM_ARCH_TIMER_OOL_WORKAROUND
help
This option adds a workaround for ARM Cortex-A76/Neoverse-N1
- erratum 1188873.
+ errata 1188873 and 1418040.
- Affected Cortex-A76/Neoverse-N1 cores (r0p0, r1p0, r2p0) could
+ Affected Cortex-A76/Neoverse-N1 cores (r0p0 to r3p1) could
cause register corruption when accessing the timer registers
from AArch32 userspace.
@@ -520,6 +520,24 @@ config ARM64_ERRATUM_1286807
If unsure, say Y.
+config ARM64_ERRATUM_1463225
+ bool "Cortex-A76: Software Step might prevent interrupt recognition"
+ default y
+ help
+ This option adds a workaround for Arm Cortex-A76 erratum 1463225.
+
+ On the affected Cortex-A76 cores (r0p0 to r3p1), software stepping
+ of a system call instruction (SVC) can prevent recognition of
+ subsequent interrupts when software stepping is disabled in the
+ exception handler of the system call and either kernel debugging
+ is enabled or VHE is in use.
+
+ Work around the erratum by triggering a dummy step exception
+ when handling a system call from a task that is being stepped
+ in a VHE configuration of the kernel.
+
+ If unsure, say Y.
+
config CAVIUM_ERRATUM_22375
bool "Cavium erratum 22375, 24313"
default y
@@ -1405,6 +1423,7 @@ config ARM64_MODULE_PLTS
config ARM64_PSEUDO_NMI
bool "Support for NMI-like interrupts"
+ depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com
select CONFIG_ARM_GIC_V3
help
Adds support for mimicking Non-Maskable Interrupts through the use of