arm64: Add workaround for Cavium Thunder erratum 30115

[mirror_ubuntu-zesty-kernel.git] / arch / arm64 / Kconfig

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4a57a2a9216e32835fc0e2b6e4ae334099cfa90a..c2f43f62a9fc4e534b0162133b7a5cf8b3485c57 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2,6 +2,7 @@ config ARM64
        def_bool y
        select ACPI_CCA_REQUIRED if ACPI
        select ACPI_GENERIC_GSI if ACPI
+       select ACPI_GTDT if ACPI
        select ACPI_REDUCED_HARDWARE_ONLY if ACPI
        select ACPI_MCFG if ACPI
        select ACPI_SPCR_TABLE if ACPI
@@ -14,7 +15,9 @@ config ARM64
        select ARCH_HAS_KCOV
        select ARCH_HAS_SG_CHAIN
        select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+       select ARCH_HAVE_NMI_SAFE_CMPXCHG if ACPI_APEI_SEA
        select ARCH_USE_CMPXCHG_LOCKREF
+       select ARCH_SUPPORTS_MEMORY_FAILURE
        select ARCH_SUPPORTS_ATOMIC_RMW
        select ARCH_SUPPORTS_NUMA_BALANCING
        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
@@ -88,6 +91,7 @@ config ARM64
        select HAVE_IRQ_TIME_ACCOUNTING
        select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP if NUMA
+       select HAVE_NMI if ACPI_APEI_SEA
        select HAVE_PATA_PLATFORM
        select HAVE_PERF_EVENTS
        select HAVE_PERF_REGS
@@ -243,6 +247,9 @@ config PGTABLE_LEVELS
 config ARCH_SUPPORTS_UPROBES
        def_bool y
 
+config ARCH_PROC_KCORE_TEXT
+       def_bool y
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
@@ -479,6 +486,17 @@ config CAVIUM_ERRATUM_27456
 
          If unsure, say Y.
 
+config CAVIUM_ERRATUM_30115
+       bool "Cavium erratum 30115: Guest may disable interrupts in host"
+       default y
+       help
+         On ThunderX T88 pass 1.x through 2.2, T81 pass 1.0 through
+         1.2, and T83 Pass 1.0, KVM guest execution may disable
+         interrupts in host. Trapping both GICv3 group-0 and group-1
+         accesses sidesteps the issue.
+
+         If unsure, say Y.
+
 config QCOM_FALKOR_ERRATUM_1003
        bool "Falkor E1003: Incorrect translation due to ASID change"
        default y
@@ -731,6 +749,17 @@ config KEXEC
          but it is independent of the system firmware.   And like a reboot
          you can start any kernel with it, not just Linux.
 
+config CRASH_DUMP
+       bool "Build kdump crash kernel"
+       help
+         Generate crash dump after being started by kexec. This should
+         be normally only set in special crash dump kernels which are
+         loaded in the main kernel with kexec-tools into a specially
+         reserved region and then later executed after a crash by
+         kdump/kexec.
+
+         For more details see Documentation/kdump/kdump.txt
+
 config XEN_DOM0
        def_bool y
        depends on XEN