Lines Matching +full:riscv +full:- +full:crypto
1 # SPDX-License-Identifier: GPL-2.0-only
4 # see Documentation/kbuild/kconfig-language.rst.
13 config RISCV
66 # LLD >= 14: https://github.com/llvm/llvm-project/issues/50505
222 # -Zsanitizer=shadow-call-stack flag.
232 depends on $(cc-option,-fpatchable-function-entry=8)
235 def_bool $(cc-option,-fsanitize=shadow-call-stack)
236 # https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a484e843e6eeb51f0cb7b8819e50da6d2444d769
237 depends on $(ld-option,--no-relax-gp)
241 # https://github.com/llvm/llvm-project/commit/6611d58f5bbcbec77262d392e2923e1d680f6985
244 # https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6
248 # https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a
250 # https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77
261 # VA_BITS - PAGE_SHIFT - 3
275 Select this option if you want to run the kernel in M-mode,
278 # set if we are running in S-mode and can use SBI calls
285 bool "MMU-based Paged Memory Management Support"
288 Select if you want MMU-based virtualised addressing space
366 This enables function pointer support for non-standard noncoherent
370 def_bool $(as-instr,.insn r 51$(comma) 0$(comma) 0$(comma) t0$(comma) t0$(comma) zero)
373 # https://github.com/llvm/llvm-project/commit/9e8ed3403c191ab9c4903e8eeb8f732ff8a43cb4
375 depends on $(as-instr, .option arch$(comma) +m)
377 source "arch/riscv/Kconfig.socs"
378 source "arch/riscv/Kconfig.errata"
383 bool "Allow configurations that result in non-portable kernels"
385 RISC-V kernel binaries are compatible between all known systems
440 bool "Symmetric Multi-Processing"
453 bool "Multi-core scheduler support"
456 Multi-core scheduler support improves the CPU scheduler's decision
457 making when dealing with multi-core CPU chips at a cost of slightly
461 int "Maximum number of CPUs (2-512)"
470 bool "Support for hot-pluggable CPUs"
501 Enable NUMA (Non-Uniform Memory Access) support.
516 prompt "RISC-V spinlock type"
590 Allow kernel to detect the Svnapot ISA-extension dynamically at boot
594 of contiguous virtual-to-physical translations for a naturally
595 aligned power-of-2 (NAPOT) granularity larger than the base 4KB page
604 bool "Svpbmt extension support for supervisor mode page-based memory types"
610 ISA-extension (Supervisor-mode: page-based memory types) and
617 The Svpbmt extension is only available on 64-bit cpus.
624 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv)
625 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv)
661 bool "Run kernel-mode Vector with kernel preemption"
666 Usually, in-kernel SIMD routines are run with preemption disabled.
672 consumption due to the allocation of per-task's kernel Vector context.
680 which allow a hart to enter a low-power state or to trap to the
688 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zabha)
689 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zabha)
698 Enable the use of the Zabha ISA-extension to implement kernel
706 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zacas)
707 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zacas)
716 Enable the use of the Zacas ISA-extension to implement kernel atomic
724 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbb)
725 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbb)
729 # This symbol indicates that the toolchain supports all v1.0 vector crypto
733 def_bool $(as-instr, .option arch$(comma) +v$(comma) +zvkb)
758 of bit-specific operations (count bit population, sign extending,
766 depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
767 depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
772 bool "Zbc extension support for carry-less multiplication instructions"
779 extension (carry-less multiplication) and enable its usage.
787 bool "Zicbom extension support for non-coherent DMA operation"
799 non-coherent DMA support on devices that need it.
817 # https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=aed44286efa8ae8717a77d94b51ac3614e2ca6dc
821 Binutils-2.38 and GCC-12.1.0 bumped the default ISA spec to the newer
834 # https://github.com/llvm/llvm-project/commit/22e199e6afb1263c943c0c0d4498694e15bf8a16
839 -march. This option causes an older ISA spec compatible with these older
841 as passing zicsr and zifencei to -march.
847 Say N here if you want to disable all floating-point related procedure
862 int "Kernel stack size (in power-of-two numbers of page size)" if VMAP_STACK && EXPERT
981 source "arch/riscv/Kconfig.vendor"
994 deprecated in future once legacy M-mode software are no longer in use.
1005 scheme. It should be only enabled for M-mode Linux or platforms relying
1046 bool "Kernel support for 32-bit U-mode"
1050 This option enables support for a 32-bit U-mode running under a 64-bit
1051 kernel at S-mode. riscv32-specific components such as system calls,
1055 If you want to execute 32-bit userspace applications, say Y.
1085 Since RISCV uses the RELA relocation format, this requires a
1101 random u64 value in /chosen/kaslr-seed at kernel entry.
1115 string "Built-in kernel command line"
1118 are provided at run-time, during boot. However, there are cases
1122 When that occurs, it is possible to define a built-in command
1126 prompt "Built-in command line usage"
1130 Choose how the kernel will handle the provided built-in command
1136 Use the built-in command line as fallback in case we get nothing
1142 The command-line arguments provided during boot will be
1143 appended to the built-in command line. This is useful in
1150 Always use the built-in command line, even if we get one during
1175 by UEFI firmware (such as non-volatile variables, realtime
1189 continue to boot on existing non-UEFI platforms.
1192 def_bool $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=tp -mstack-protector-guard-offset=0)
1210 explicitly specified to run early relocations of read-write data
1214 bool "Kernel Execute-In-Place from ROM"
1221 Execute-In-Place allows the kernel to run from non-volatile storage
1224 to RAM. Read-write sections, such as the data section and stack,
1234 ROM memory will be arch/riscv/boot/xipImage.
1252 bool "Permit falling back to parsing riscv,isa for extension support by default"
1255 Parsing the "riscv,isa" devicetree property has been deprecated and
1258 "riscv,isa" property if the replacements are not found.
1264 Please see the dt-binding, located at
1265 Documentation/devicetree/bindings/riscv/extensions.yaml for details
1266 on the replacement properties, "riscv,isa-base" and
1267 "riscv,isa-extensions".
1270 bool "Built-in device tree"
1279 string "Built-in device tree source"
1282 DTS file path (without suffix, relative to arch/riscv/boot/dts)
1321 source "arch/riscv/kvm/Kconfig"