3 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
4 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
8 select GENERIC_CLOCKEVENTS
9 select GENERIC_COMPAT_RT_SIGPENDING
10 select GENERIC_COMPAT_RT_SIGPROCMASK
11 select GENERIC_COMPAT_RT_SIGQUEUEINFO
12 select GENERIC_HARDIRQS_NO_DEPRECATED
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
16 select GENERIC_SIGALTSTACK
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_TIME_VSYSCALL
19 select HARDIRQS_SW_RESEND
20 select HAVE_ARCH_TRACEHOOK
21 select HAVE_DEBUG_BUGVERBOSE
22 select HAVE_DEBUG_KMEMLEAK
23 select HAVE_DMA_API_DEBUG
25 select HAVE_GENERIC_DMA_COHERENT
26 select HAVE_GENERIC_HARDIRQS
27 select HAVE_HW_BREAKPOINT if PERF_EVENTS
30 select HAVE_PERF_EVENTS
32 select MODULES_USE_ELF_RELA
35 select OF_EARLY_FLATTREE
36 select PERF_USE_VMALLOC
39 select SYSCTL_EXCEPTION_TRACE
41 ARM 64-bit (AArch64) Linux support.
46 config ARCH_PHYS_ADDR_T_64BIT
55 config STACKTRACE_SUPPORT
58 config LOCKDEP_SUPPORT
61 config TRACE_IRQFLAGS_SUPPORT
64 config GENERIC_LOCKBREAK
66 depends on SMP && PREEMPT
68 config RWSEM_GENERIC_SPINLOCK
71 config GENERIC_HWEIGHT
77 config GENERIC_CALIBRATE_DELAY
83 config ARCH_DMA_ADDR_T_64BIT
86 config NEED_DMA_MAP_STATE
89 config NEED_SG_DMA_LENGTH
101 source "init/Kconfig"
103 source "kernel/Kconfig.freezer"
116 menu "Kernel Features"
118 source "kernel/time/Kconfig"
120 config ARM64_64K_PAGES
121 bool "Enable 64KB pages support"
123 This feature enables 64KB pages support (4KB by default)
124 allowing only two levels of page tables and faster TLB
125 look-up. AArch32 emulation is not available when this feature
129 bool "Symmetric Multi-Processing"
130 select USE_GENERIC_SMP_HELPERS
132 This enables support for systems with more than one CPU. If
133 you say N here, the kernel will run on single and
134 multiprocessor machines, but will use only one CPU of a
135 multiprocessor machine. If you say Y here, the kernel will run
136 on many, but not all, single processor machines. On a single
137 processor machine, the kernel will run faster if you say N
140 If you don't know what to do here, say N.
143 int "Maximum number of CPUs (2-32)"
148 source kernel/Kconfig.preempt
154 config ARCH_HAS_HOLES_MEMORYMODEL
155 def_bool y if SPARSEMEM
157 config ARCH_SPARSEMEM_ENABLE
159 select SPARSEMEM_VMEMMAP_ENABLE
161 config ARCH_SPARSEMEM_DEFAULT
162 def_bool ARCH_SPARSEMEM_ENABLE
164 config ARCH_SELECT_MEMORY_MODEL
165 def_bool ARCH_SPARSEMEM_ENABLE
167 config HAVE_ARCH_PFN_VALID
168 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
170 config HW_PERF_EVENTS
171 bool "Enable hardware performance counter support for perf events"
172 depends on PERF_EVENTS
175 Enable hardware performance counter support for perf events. If
176 disabled, perf events will use software events only.
185 string "Default kernel command string"
188 Provide a set of default command-line options at build time by
189 entering them here. As a minimum, you should specify the the
190 root device (e.g. root=/dev/nfs).
193 bool "Always use the default kernel command string"
195 Always use the default kernel command string, even if the boot
196 loader passes other arguments to the kernel.
197 This is useful if you cannot or don't want to change the
198 command-line options your boot loader passes to the kernel.
202 menu "Userspace binary formats"
204 source "fs/Kconfig.binfmt"
207 bool "Kernel support for 32-bit EL0"
208 depends on !ARM64_64K_PAGES
209 select COMPAT_BINFMT_ELF
212 This option enables support for a 32-bit EL0 running under a 64-bit
213 kernel at EL1. AArch32-specific components such as system calls,
214 the user helper functions, VFP support and the ptrace interface are
215 handled appropriately by the kernel.
217 If you want to execute 32-bit userspace applications, say Y.
219 config SYSVIPC_COMPAT
221 depends on COMPAT && SYSVIPC
227 source "drivers/Kconfig"
231 source "arch/arm64/Kconfig.debug"
233 source "security/Kconfig"
235 source "crypto/Kconfig"