Lines Matching +full:ace +full:- +full:lite
1 # SPDX-License-Identifier: GPL-2.0-only
260 ARM 64-bit (AArch64) Linux support.
269 depends on $(cc-option,-fpatchable-function-entry=2)
301 # VA_BITS - PAGE_SHIFT - 3
377 def_bool !$(as-instr,1:\n.inst 0\n.rept . - 1b\n\nnop\n.endr\n)
432 at stage-2.
440 …bool "Cortex-A53: 826319: System might deadlock if a write cannot complete until read data is acce…
445 erratum 826319 on Cortex-A53 parts up to r0p2 with an AMBA 4 ACE or
448 If a Cortex-A53 uses an AMBA AXI4 ACE interface to other processors
454 data cache clean-and-invalidate.
462 …bool "Cortex-A53: 827319: Data cache clean instructions might cause overlapping transactions to th…
467 erratum 827319 on Cortex-A53 parts up to r0p2 with an AMBA 5 CHI
476 data cache clean-and-invalidate.
484 bool "Cortex-A53: 824069: Cache line might not be marked as clean after a CleanShared snoop"
489 erratum 824069 on Cortex-A53 parts up to r0p2 when it is connected
492 If a Cortex-A53 processor is executing a store or prefetch for
499 data cache clean-and-invalidate.
507 bool "Cortex-A53: 819472: Store exclusive instructions might cause data corruption"
512 erratum 819472 on Cortex-A53 parts up to r0p1 with an L2 cache
521 data cache clean-and-invalidate.
529 bool "Cortex-A57: 832075: possible deadlock on mixing exclusive memory accesses with device loads"
533 erratum 832075 on Cortex-A57 parts up to r1p2.
535 Affected Cortex-A57 parts might deadlock when exclusive load/store
536 instructions to Write-Back memory are mixed with Device loads.
538 The workaround is to promote device loads to use Load-Acquire
547 …bool "Cortex-A57: 834220: Stage 2 translation fault might be incorrectly reported in presence of a…
552 erratum 834220 on Cortex-A57 parts up to r1p2.
554 Affected Cortex-A57 parts might report a Stage 2 translation
568 …bool "Cortex-A57/A72: 1742098: ELR recorded incorrectly on interrupt taken between cryptographic i…
572 This option removes the AES hwcap for aarch32 user-space to
573 workaround erratum 1742098 on Cortex-A57 and Cortex-A72.
584 bool "Cortex-A53: 845719: a load might read incorrect data"
589 erratum 845719 on Cortex-A53 parts up to r0p4.
591 When running a compat (AArch32) userspace on an affected Cortex-A53
597 return to a 32-bit task.
605 bool "Cortex-A53: 843419: A load or store might access an incorrect address"
608 This option links the kernel with '--fix-cortex-a53-843419' and
611 Cortex-A53 parts up to r0p4.
616 def_bool $(ld-option,--fix-cortex-a53-843419)
619 …bool "Cortex-A55: 1024718: Update of DBM/AP bits without break before make might result in incorre…
622 This option adds a workaround for ARM Cortex-A55 Erratum 1024718.
624 Affected Cortex-A55 cores (all revisions) could cause incorrect
626 without a break-before-make. The workaround is to disable the usage
633 …bool "Cortex-A76/Neoverse-N1: MRC read following MRRC read of specific Generic Timer in AArch32 mi…
637 This option adds a workaround for ARM Cortex-A76/Neoverse-N1
640 Affected Cortex-A76/Neoverse-N1 cores (r0p0 to r3p1) could
650 …bool "Cortex-A76: 1165522: Speculative AT instruction using out-of-context translation regime coul…
654 This option adds a workaround for ARM Cortex-A76 erratum 1165522.
656 Affected Cortex-A76 cores (r0p0, r1p0, r2p0) could end-up with
663 …bool "Cortex-A57/A72: 1319537: Speculative AT instruction using out-of-context translation regime …
667 This option adds work arounds for ARM Cortex-A57 erratum 1319537
670 Cortex-A57 and A72 cores could end-up with corrupted TLBs by
676 …bool "Cortex-A55: 1530923: Speculative AT instruction using out-of-context translation regime coul…
680 This option adds a workaround for ARM Cortex-A55 erratum 1530923.
682 Affected Cortex-A55 cores (r0p0, r0p1, r1p0, r2p0) could end-up with
692 …bool "Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of …
696 This option adds a workaround for ARM Cortex-A55 erratum #2441007.
698 Under very rare circumstances, affected Cortex-A55 CPUs
699 may not handle a race between a break-before-make sequence on one
709 …bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-a…
713 This option adds a workaround for ARM Cortex-A76 erratum 1286807.
715 On the affected Cortex-A76 cores (r0p0 to r3p0), if a virtual
719 break-before-make sequence, then under very rare circumstances
725 bool "Cortex-A76: Software Step might prevent interrupt recognition"
728 This option adds a workaround for Arm Cortex-A76 erratum 1463225.
730 On the affected Cortex-A76 cores (r0p0 to r3p1), software stepping
743 bool "Neoverse-N1: workaround mis-ordering of instruction fetches"
746 This option adds a workaround for ARM Neoverse-N1 erratum
749 Affected Neoverse-N1 cores could execute a stale instruction when
754 forces user-space to perform cache maintenance.
759 …bool "Cortex-A77: 1508412: workaround deadlock on sequence of NC/Device load and store exclusive o…
762 This option adds a workaround for Arm Cortex-A77 erratum 1508412.
764 Affected Cortex-A77 cores (r0p0, r1p0) could deadlock on a sequence
765 of a store-exclusive or read of PAR_EL1 and a load with device or
766 non-cacheable memory attributes. The workaround depends on a firmware
782 bool "Cortex-A510: 2051678: disable Hardware Update of the page table dirty bit"
785 This options adds the workaround for ARM Cortex-A510 erratum ARM64_ERRATUM_2051678.
786 Affected Cortex-A510 might not respect the ordering rules for
793 bool "Cortex-A510: 2077057: workaround software-step corrupting SPSR_EL2"
796 This option adds the workaround for ARM Cortex-A510 erratum 2077057.
797 Affected Cortex-A510 may corrupt SPSR_EL2 when the a step exception is
805 previous guest entry, and can be restored from the in-memory copy.
810 bool "Cortex-A510: 2658417: remove BF16 support due to incorrect result"
813 This option adds the workaround for ARM Cortex-A510 erratum 2658417.
814 Affected Cortex-A510 (r0p0 to r1p1) may produce the wrong result for
818 user-space should not be using these instructions.
823 bool "Cortex-A710/X2: 2119858: workaround TRBE overwriting trace data in FILL mode"
828 This option adds the workaround for ARM Cortex-A710/X2 erratum 2119858.
830 Affected Cortex-A710/X2 cores could overwrite up to 3 cache lines of trace
841 bool "Neoverse-N2: 2139208: workaround TRBE overwriting trace data in FILL mode"
846 This option adds the workaround for ARM Neoverse-N2 erratum 2139208.
848 Affected Neoverse-N2 cores could overwrite up to 3 cache lines of trace
862 bool "Cortex-A710: 2054223: workaround TSB instruction failing to flush trace"
866 Enable workaround for ARM Cortex-A710 erratum 2054223
877 bool "Neoverse-N2: 2067961: workaround TSB instruction failing to flush trace"
881 Enable workaround for ARM Neoverse-N2 erratum 2067961
895 bool "Neoverse-N2: 2253138: workaround TRBE writing to address out-of-range"
900 This option adds the workaround for ARM Neoverse-N2 erratum 2253138.
902 Affected Neoverse-N2 cores might write to an out-of-range address, not reserved
913 bool "Cortex-A710/X2: 2224489: workaround TRBE writing to address out-of-range"
918 This option adds the workaround for ARM Cortex-A710/X2 erratum 2224489.
920 Affected Cortex-A710/X2 cores might write to an out-of-range address, not reserved
931 …bool "Cortex-A510: Completion of affected memory accesses might not be guaranteed by completion of…
935 This option adds a workaround for ARM Cortex-A510 erratum #2441009.
937 Under very rare circumstances, affected Cortex-A510 CPUs
938 may not handle a race between a break-before-make sequence on one
948 bool "Cortex-A510: 2064142: workaround TRBE register writes while disabled"
952 This option adds the workaround for ARM Cortex-A510 erratum 2064142.
954 Affected Cortex-A510 core might fail to write into system registers after the
966 bool "Cortex-A510: 2038923: workaround TRBE corruption with enable"
970 This option adds the workaround for ARM Cortex-A510 erratum 2038923.
972 Affected Cortex-A510 core might cause an inconsistent view on whether trace is
989 bool "Cortex-A510: 1902691: workaround TRBE trace corruption"
993 This option adds the workaround for ARM Cortex-A510 erratum 1902691.
995 Affected Cortex-A510 core might cause trace data corruption, when being written
1007 bool "Cortex-A510: 2457168: workaround for AMEVCNTR01 incrementing incorrectly"
1011 This option adds the workaround for ARM Cortex-A510 erratum 2457168.
1014 as the system counter. On affected Cortex-A510 cores AMEVCNTR01 increments
1024 bool "Cortex-A715: 2645198: Workaround possible [ESR|FAR]_ELx corruption"
1027 This option adds the workaround for ARM Cortex-A715 erratum 2645198.
1029 If a Cortex-A715 cpu sees a page mapping permissions change from executable
1030 to non-executable, it may corrupt the ESR_ELx and FAR_ELx registers on the
1033 Only user-space does executable to non-executable permission transition via
1034 mprotect() system call. Workaround the problem by doing a break-before-make
1043 bool "Cortex-A520: 2966298: workaround for speculatively executed unprivileged load"
1047 This option adds the workaround for ARM Cortex-A520 erratum 2966298.
1049 On an affected Cortex-A520 core, a speculatively executed unprivileged
1057 bool "Cortex-A510: 3117295: workaround for speculatively executed unprivileged load"
1061 This option adds the workaround for ARM Cortex-A510 erratum 3117295.
1063 On an affected Cortex-A510 core, a speculatively executed unprivileged
1071 bool "Cortex-*/Neoverse-*: workaround for MSR SSBS not self-synchronizing"
1076 * ARM Cortex-A76 erratum 3324349
1077 * ARM Cortex-A77 erratum 3324348
1078 * ARM Cortex-A78 erratum 3324344
1079 * ARM Cortex-A78C erratum 3324346
1080 * ARM Cortex-A78C erratum 3324347
1081 * ARM Cortex-A710 erratam 3324338
1082 * ARM Cortex-A715 errartum 3456084
1083 * ARM Cortex-A720 erratum 3456091
1084 * ARM Cortex-A725 erratum 3456106
1085 * ARM Cortex-X1 erratum 3324344
1086 * ARM Cortex-X1C erratum 3324346
1087 * ARM Cortex-X2 erratum 3324338
1088 * ARM Cortex-X3 erratum 3324335
1089 * ARM Cortex-X4 erratum 3194386
1090 * ARM Cortex-X925 erratum 3324334
1091 * ARM Neoverse-N1 erratum 3324349
1093 * ARM Neoverse-N3 erratum 3456111
1094 * ARM Neoverse-V1 erratum 3324341
1096 * ARM Neoverse-V3 erratum 3312417
1104 SSBS. The presence of the SSBS special-purpose register is hidden
1116 This implements two gicv3-its errata workarounds for ThunderX. Both
1156 contains data for a non-current ASID. The fix is to
1167 interrupts in host. Trapping both GICv3 group-0 and group-1
1190 bool "Fujitsu-A64FX erratum E#010001: Undefined fault may occur wrongly"
1193 This option adds a workaround for Fujitsu-A64FX erratum E#010001.
1194 On some variants of the Fujitsu-A64FX cores ver(1.0, 1.1), memory
1198 case-1 TTBR0_EL1 with TCR_EL1.NFD0 == 1.
1199 case-2 TTBR0_EL2 with TCR_EL2.NFD0 == 1.
1200 case-3 TTBR1_EL1 with TCR_EL1.NFD1 == 1.
1201 case-4 TTBR1_EL2 with TCR_EL2.NFD1 == 1.
1204 The workaround only affects the Fujitsu-A64FX.
1264 If CNP is enabled on Carmel cores, non-sharable TLBIs on a core will not
1274 The Rockchip RK3588 GIC600 SoC integration does not support ACE/ACE-lite.
1281 bool "Socionext Synquacer: Workaround for GICv3 pre-ITS"
1285 MSI doorbell writes with non-zero values for the device ID.
1314 look-up. AArch32 emulation requires applications compiled
1330 bool "36-bit" if EXPERT
1334 bool "39-bit"
1338 bool "42-bit"
1342 bool "47-bit"
1346 bool "48-bit"
1349 bool "52-bit"
1352 Enable 52-bit virtual addressing for userspace when explicitly
1353 requested via a hint to mmap(). The kernel will also use 52-bit
1355 this feature is available, otherwise it reverts to 48-bit).
1357 NOTE: Enabling 52-bit virtual addressing in conjunction with
1360 impact on its susceptibility to brute-force attacks.
1362 If unsure, select 48-bit virtual addressing instead.
1367 bool "Force 52-bit virtual addresses for userspace"
1370 For systems with 52-bit userspace VAs enabled, the kernel will attempt
1371 to maintain compatibility with older software by providing 48-bit VAs
1374 This configuration option disables the 48-bit compatibility logic, and
1375 forces all userspace addresses to be 52-bit on HW that supports it. One
1396 bool "48-bit"
1399 bool "52-bit (ARMv8.2)"
1403 Enable support for a 52-bit physical address space, introduced as
1404 part of the ARMv8.2-LPA extension.
1407 do not support ARMv8.2-LPA, but with some added memory overhead (and
1426 bool "Build big-endian kernel"
1428 # https://github.com/llvm/llvm-project/commit/1379b150991f70a5782e9a143c2ba5308da1161c
1431 Say Y if you plan on running a kernel with a big-endian userspace.
1434 bool "Build little-endian kernel"
1436 Say Y if you plan on running a kernel with a little-endian userspace.
1442 bool "Multi-core scheduler support"
1444 Multi-core scheduler support improves the CPU scheduler's decision
1445 making when dealing with multi-core CPU chips at a cost of slightly
1454 by sharing mid-level caches, last-level cache tags or internal
1465 int "Maximum number of CPUs (2-4096)"
1470 bool "Support for hot-pluggable CPUs"
1487 Enable NUMA (Non-Uniform Memory Access) support.
1515 def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
1578 # so the maximum value of MAX_ORDER is SECTION_SIZE_BITS - PAGE_SHIFT:
1581 # ----+-------------------+--------------+-----------------+--------------------+
1609 Speculation attacks against some high-performance processors can
1621 Speculation attacks against some high-performance processors can
1623 When taking an exception from user-space, a sequence of branches
1630 Apply read-only attributes of VM areas to the linear alias of
1631 the backing pages as well. This prevents code or read-only data
1644 user-space memory directly by pointing TTBR0_EL1 to a reserved
1655 Documentation/arch/arm64/tagged-address-abi.rst.
1658 bool "Kernel support for 32-bit EL0"
1664 This option enables support for a 32-bit EL0 running under a 64-bit
1665 kernel at EL1. AArch32-specific components such as system calls,
1673 If you want to execute 32-bit userspace applications, say Y.
1678 bool "Enable kuser helpers page for 32-bit applications"
1681 Warning: disabling this option may break 32-bit user programs.
1705 bool "Enable vDSO for 32-bit applications"
1711 Place in the process address space of 32-bit applications an
1715 You must have a 32-bit build of glibc 2.22 or later for programs
1719 bool "Compile the 32-bit vDSO for Thumb-2 mode" if EXPERT
1723 Compile the compat vDSO with '-mthumb -fomit-frame-pointer' if y,
1724 otherwise with '-marm'.
1727 bool "Fix up misaligned multi-word loads and stores in user space"
1769 The CP15 barrier instructions - CP15ISB, CP15DSB, and
1770 CP15DMB - are deprecated in ARMv8 (and ARMv7). It is
1785 The SETEND instruction alters the data-endianness of the
1793 for this feature to be enabled. If a new CPU - which doesn't support mixed
1794 endian - is hotplugged in after this feature has been enabled, there could
1813 Similarly, writes to read-only pages with the DBM bit set will
1814 clear the read-only bit (AP[2]) instead of raising a
1818 to work on pre-ARMv8.1 hardware and the performance impact is
1826 prevents the kernel or hypervisor from accessing user-space (EL0)
1836 def_bool $(as-instr,.arch_extension lse)
1851 Say Y here to make use of these instructions for the in-kernel
1862 def_bool $(cc-option,-Wa$(comma)-march=armv8.2-a)
1865 def_bool $(as-instr,.arch armv8.2-a+sha3)
1925 context-switched along with the process.
1948 If the compiler supports the -mbranch-protection or
1949 -msign-return-address flag (e.g. GCC 7 or later), then this option
1960 def_bool $(cc-option,-mbranch-protection=pac-ret+leaf)
1964 def_bool $(cc-option,-msign-return-address=all)
1967 def_bool $(cc-option,-Wa$(comma)-march=armv8.3-a)
1970 def_bool $(as-instr,.cfi_startproc\n.cfi_negate_ra_state\n.cfi_endproc\n)
1973 def_bool $(as-instr,.arch_extension rcpc)
2003 def_bool $(cc-option,-Wa$(comma)-march=armv8.4-a)
2010 ARMv8.4-TLBI provides TLBI invalidation instruction that apply to a
2021 def_bool $(cc-option,-Wa$(comma)-march=armv8.5-a)
2055 # https://github.com/llvm/llvm-project/commit/a88c722e687e6780dcd6a58718350dc76fcc4cc9
2066 def_bool $(cc-option,-mbranch-protection=pac-ret+leaf+bti)
2082 # ".arch armv8.5-a+memtag" below. However, this was incomplete
2086 def_bool $(as-instr,.arch armv8.5-a+memtag\nstgm xzr$(comma)[x0])
2101 architectural support for run-time, always-on detection of
2103 to eliminate vulnerabilities arising from memory-unsafe
2111 not be allowed a late bring-up.
2117 Documentation/arch/arm64/memory-tagging-extension.rst.
2129 Access Never to be used with Execute-only mappings.
2160 If you need the kernel to boot on SVE-capable hardware with broken
2179 bool "Support for NMI-like interrupts"
2182 Adds support for mimicking Non-Maskable Interrupts through the use of
2225 random u64 value in /chosen/kaslr-seed at kernel entry.
2252 …def_bool $(cc-option,-mstack-protector-guard=sysreg -mstack-protector-guard-reg=sp_el0 -mstack-pro…
2284 Provide a set of default command-line options at build time by
2298 Uses the command-line options passed by the boot loader. If
2308 command-line options your boot loader passes to the kernel.
2330 by UEFI firmware (such as non-volatile variables, realtime
2344 continue to boot on existing non-UEFI platforms.