3 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
4 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
6 select GENERIC_CLOCKEVENTS
7 select GENERIC_HARDIRQS_NO_DEPRECATED
9 select GENERIC_IRQ_PROBE
10 select GENERIC_IRQ_SHOW
11 select GENERIC_KERNEL_EXECVE
12 select GENERIC_KERNEL_THREAD
13 select GENERIC_SMP_IDLE_THREAD
14 select GENERIC_TIME_VSYSCALL
15 select HARDIRQS_SW_RESEND
16 select HAVE_ARCH_TRACEHOOK
17 select HAVE_DEBUG_BUGVERBOSE
18 select HAVE_DEBUG_KMEMLEAK
19 select HAVE_DMA_API_DEBUG
21 select HAVE_GENERIC_DMA_COHERENT
22 select HAVE_GENERIC_HARDIRQS
23 select HAVE_HW_BREAKPOINT if PERF_EVENTS
26 select HAVE_PERF_EVENTS
28 select MODULES_USE_ELF_RELA
31 select OF_EARLY_FLATTREE
32 select PERF_USE_VMALLOC
35 select SYSCTL_EXCEPTION_TRACE
36 select CLONE_BACKWARDS
38 ARM 64-bit (AArch64) Linux support.
43 config ARCH_PHYS_ADDR_T_64BIT
52 config STACKTRACE_SUPPORT
55 config LOCKDEP_SUPPORT
58 config TRACE_IRQFLAGS_SUPPORT
61 config GENERIC_LOCKBREAK
63 depends on SMP && PREEMPT
65 config RWSEM_GENERIC_SPINLOCK
68 config GENERIC_HWEIGHT
74 config GENERIC_CALIBRATE_DELAY
80 config ARCH_DMA_ADDR_T_64BIT
83 config NEED_DMA_MAP_STATE
86 config NEED_SG_DMA_LENGTH
97 source "kernel/Kconfig.freezer"
110 menu "Kernel Features"
112 source "kernel/time/Kconfig"
114 config ARM64_64K_PAGES
115 bool "Enable 64KB pages support"
117 This feature enables 64KB pages support (4KB by default)
118 allowing only two levels of page tables and faster TLB
119 look-up. AArch32 emulation is not available when this feature
123 bool "Symmetric Multi-Processing"
124 select USE_GENERIC_SMP_HELPERS
126 This enables support for systems with more than one CPU. If
127 you say N here, the kernel will run on single and
128 multiprocessor machines, but will use only one CPU of a
129 multiprocessor machine. If you say Y here, the kernel will run
130 on many, but not all, single processor machines. On a single
131 processor machine, the kernel will run faster if you say N
134 If you don't know what to do here, say N.
137 int "Maximum number of CPUs (2-32)"
142 source kernel/Kconfig.preempt
148 config ARCH_HAS_HOLES_MEMORYMODEL
149 def_bool y if SPARSEMEM
151 config ARCH_SPARSEMEM_ENABLE
153 select SPARSEMEM_VMEMMAP_ENABLE
155 config ARCH_SPARSEMEM_DEFAULT
156 def_bool ARCH_SPARSEMEM_ENABLE
158 config ARCH_SELECT_MEMORY_MODEL
159 def_bool ARCH_SPARSEMEM_ENABLE
161 config HAVE_ARCH_PFN_VALID
162 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
164 config HW_PERF_EVENTS
165 bool "Enable hardware performance counter support for perf events"
166 depends on PERF_EVENTS
169 Enable hardware performance counter support for perf events. If
170 disabled, perf events will use software events only.
179 string "Default kernel command string"
182 Provide a set of default command-line options at build time by
183 entering them here. As a minimum, you should specify the the
184 root device (e.g. root=/dev/nfs).
187 bool "Always use the default kernel command string"
189 Always use the default kernel command string, even if the boot
190 loader passes other arguments to the kernel.
191 This is useful if you cannot or don't want to change the
192 command-line options your boot loader passes to the kernel.
196 menu "Userspace binary formats"
198 source "fs/Kconfig.binfmt"
201 bool "Kernel support for 32-bit EL0"
202 depends on !ARM64_64K_PAGES
203 select COMPAT_BINFMT_ELF
206 This option enables support for a 32-bit EL0 running under a 64-bit
207 kernel at EL1. AArch32-specific components such as system calls,
208 the user helper functions, VFP support and the ptrace interface are
209 handled appropriately by the kernel.
211 If you want to execute 32-bit userspace applications, say Y.
213 config SYSVIPC_COMPAT
215 depends on COMPAT && SYSVIPC
221 source "drivers/Kconfig"
225 source "arch/arm64/Kconfig.debug"
227 source "security/Kconfig"
229 source "crypto/Kconfig"