select ARCH_HAS_KCOV
select ARCH_HAS_KEEPINITRD
select ARCH_HAS_MEMBARRIER_SYNC_CORE
+ select ARCH_HAS_PTE_DEVMAP
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SETUP_DMA_OPS
+ select ARCH_HAS_SET_DIRECT_MAP
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
+ select GENERIC_GETTIMEOFDAY
+ select GENERIC_COMPAT_VDSO if (!CPU_BIG_ENDIAN && COMPAT)
select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_PCI
select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
select HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select HAVE_FAST_GUP
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_KPROBES
select HAVE_KRETPROBES
+ select HAVE_GENERIC_VDSO
select IOMMU_DMA if IOMMU_SUPPORT
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
def_bool y
config ZONE_DMA32
- def_bool y
-
-config HAVE_GENERIC_GUP
- def_bool y
+ bool "Support DMA32 zone" if EXPERT
+ default y
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
config PARAVIRT_TIME_ACCOUNTING
bool "Paravirtual steal time accounting"
select PARAVIRT
- default n
help
Select this option to enable fine granularity task steal time
accounting. Time spent executing other tasks in parallel with
reserved region and then later executed after a crash by
kdump/kexec.
- For more details see Documentation/kdump/kdump.txt
+ For more details see Documentation/admin-guide/kdump/kdump.rst
config XEN_DOM0
def_bool y
the system. This permits binaries to be run on ARMv4 through
to ARMv8 without modification.
- See Documentation/arm/kernel_user_helpers.txt for details.
+ See Documentation/arm/kernel_user_helpers.rst for details.
However, the fixed address nature of these helpers can be used
by ROP (return orientated programming) authors when creating
KVM in the same kernel image.
config ARM64_MODULE_PLTS
- bool
+ bool "Use PLTs to allow module memory to spill over into vmalloc area"
+ depends on MODULES
select HAVE_MOD_ARCH_SPECIFIC
+ help
+ Allocate PLTs when loading modules so that jumps and calls whose
+ targets are too far away for their relative offsets to be encoded
+ in the instructions themselves can be bounced via veneers in the
+ module's PLT. This allows modules to be allocated in the generic
+ vmalloc area after the dedicated module memory area has been
+ exhausted.
+
+ When running with address space randomization (KASLR), the module
+ region itself may be too far away for ordinary relative jumps and
+ calls, and so in that case, module PLTs are required and cannot be
+ disabled.
+
+ Specific errata workaround(s) might also force module PLTs to be
+ enabled (ARM64_ERRATUM_843419).
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
If unsure, say N
+if ARM64_PSEUDO_NMI
+config ARM64_DEBUG_PRIORITY_MASKING
+ bool "Debug interrupt priority masking"
+ help
+ This adds runtime checks to functions enabling/disabling
+ interrupts when using priority masking. The additional checks verify
+ the validity of ICC_PMR_EL1 when calling concerned functions.
+
+ If unsure, say N
+endif
+
config RELOCATABLE
bool
help
git.samba.org / sfrench / cifs-2.6.git / blobdiff