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linux/arch/arm/include/asm
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Ard Biesheuvel a1439d8948 efi/arm: Disable LPAE PAN when calling EFI runtime services 
EFI runtime services are remapped into the lower 1 GiB of virtual
address space at boot, so they are guaranteed to be able to co-exist
with the kernel virtual mappings without the need to allocate space for
them in the kernel's vmalloc region, which is rather small.

This means those mappings are covered by TTBR0 when LPAE PAN is enabled,
and so 'user' access must be enabled while such calls are in progress.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2024-06-15 10:25:02 +02:00
..
hardware locomo: make locomo_bus_type constant and static 2024-01-04 14:38:57 +01:00
mach ARM: 9298/1: Drop custom mdesc->handle_irq() 2023-06-19 09:35:48 +01:00
vdso vdso/treewide: Add vdso_data pointer argument to __arch_get_hw_counter() 2020-08-06 10:57:30 +02:00
xen arm/xen: Introduce xen_setup_dma_ops() 2022-06-06 08:54:33 +02:00
arch_gicv3.h arm64: add ARM64_HAS_GIC_PRIO_RELAXED_SYNC cpucap 2023-01-31 16:06:17 +00:00
arch_timer.h clocksource/drivers/arm_arch_timer: Drop unnecessary ISB on CVAL programming 2021-10-17 21:47:44 +02:00
archrandom.h random: remove CONFIG_ARCH_RANDOM 2022-07-18 15:03:37 +02:00
arm-cci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
arm_pmuv3.h arm64/arm: arm_pmuv3: perf: Don't truncate 64-bit registers 2023-11-07 11:00:57 +00:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
assembler.h ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement 2024-04-18 12:10:46 +01:00
atomic.h locking/atomic: arm: add preprocessor symbols 2023-06-05 09:57:15 +02:00
auxvec.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
barrier.h ARM: avoid Cortex-A9 livelock on tight dmb loops 2019-02-01 22:05:50 +00:00
bitops.h arm: align find_bit declarations with generic kernel 2022-07-14 15:21:43 -07:00
bitrev.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bL_switcher.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
bug.h arm: print alloc free paths for address in registers 2021-05-07 00:26:34 -07:00
bugs.h ARM: cpu: Switch to arch_cpu_finalize_init() 2023-06-16 10:15:59 +02:00
cache.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
cacheflush.h mm: Introduce flush_cache_vmap_early() 2023-12-14 00:23:17 -08:00
cachetype.h Introduce cpu_dcache_is_aliasing() across all architectures 2024-02-22 15:27:19 -08:00
checksum.h net: checksum: drop the linux/uaccess.h include 2023-01-27 11:19:46 +00:00
clocksource.h arm: Introduce asm/vdso/clocksource.h 2020-03-21 15:23:54 +01:00
cmpxchg.h locking/arch: Rename all internal __xchg() names to __arch_xchg() 2023-04-29 09:08:44 +02:00
compiler.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cp15.h arm: vdso: Enable arm to use common headers 2020-03-21 15:24:03 +01:00
cpu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpufeature.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle.h arm64 updates for 5.14 2021-06-28 14:04:24 -07:00
cputype.h ARM: 9267/1: Define Armv8 registers in AArch32 state 2022-11-28 11:57:31 +00:00
cti.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
current.h ARM: remove Thumb2 __builtin_thread_pointer workaround for Clang 2024-02-22 15:38:54 -08:00
dcc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
delay.h ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
device.h ARM/dma-mapping: remove the dma_coherent member of struct dev_archdata 2022-10-06 14:31:08 +02:00
div64.h ARM: 9118/1: div64: Remove always-true __div64_const32_is_OK() duplicate 2021-08-20 11:39:28 +01:00
dma-iommu.h ARM/dma-mapping: const a pointer to bus_type in arm_iommu_create_mapping() 2023-03-23 13:21:51 +01:00
dma.h ARM: 9323/1: mm: Fix ARCH_LOW_ADDRESS_LIMIT when CONFIG_ZONE_DMA 2023-10-05 16:15:42 +01:00
dmi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
domain.h ARM: 9326/1: make <linux/uaccess.h> self-contained for ARM 2023-10-05 16:17:05 +01:00
ecard.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
efi.h efi/arm: Disable LPAE PAN when calling EFI runtime services 2024-06-15 10:25:02 +02:00
elf.h vdso/ARM: Make union vdso_data_store available for all architectures 2024-02-20 20:56:00 +01:00
exception.h ARM: 9320/1: fix stack depot IRQ stack filter 2023-10-05 16:15:40 +01:00
fiq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
firmware.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fixmap.h ARM updates for 5.11: 2020-12-22 13:34:27 -08:00
floppy.h floppy: split the base port from the register in I/O accesses 2020-05-12 19:34:52 +03:00
fncpy.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
fpstate.h ARM: 9228/1: vfp: kill vfp_flush/release_thread() 2022-08-31 14:50:08 +01:00
fpu.h ARM: implement ARCH_HAS_KERNEL_FPU_SUPPORT 2024-05-19 14:36:17 -07:00
ftrace.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
futex.h ARM: futex: Address build warning 2020-05-07 00:41:47 +02:00
glue-cache.h ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C 2024-04-29 14:14:18 +01:00
glue-df.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
glue-pf.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
glue-proc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
glue.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
hardirq.h ARM: irqstat: Get rid of duplicated declaration 2020-11-23 10:31:05 +01:00
highmem.h ARM: highmem: Fix cache_is_vivt() reference 2020-12-04 23:35:34 +01:00
hugetlb-3level.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
hugetlb.h mm: convert arch_clear_hugepage_flags to take a folio 2024-04-25 20:56:15 -07:00
hw_breakpoint.h ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints 2024-04-29 14:14:22 +01:00
hw_irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hwcap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hypervisor.h arm/arm64: Probe for the presence of KVM hypervisor 2021-03-31 09:16:55 +01:00
idmap.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
insn.h ARM: 9176/1: avoid literal references in inline assembly 2022-01-06 12:58:58 +00:00
io.h asm/io: remove unnecessary xlate_dev_mem_ptr() and unxlate_dev_mem_ptr() 2023-11-23 10:37:40 +01:00
irq.h nmi_backtrace: allow excluding an arbitrary CPU 2023-08-18 10:19:00 -07:00
irq_work.h arch: consolidate arch_irq_work_raise prototypes 2023-11-23 11:32:29 +01:00
irqflags.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
jump_label.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
kasan.h ARM: 9016/2: Initialize the mapping of KASan shadow memory 2020-10-27 12:11:10 +00:00
kasan_def.h ARM: 9015/2: Define the virtual space of KASan's shadow region 2020-10-27 12:11:08 +00:00
Kbuild local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
kexec-internal.h ARM: kexec: fix oops after TLB are invalidated 2021-02-05 10:23:29 +00:00
kexec.h kernel/Kconfig.kexec: drop select of KEXEC for CRASH_DUMP 2023-12-06 16:12:48 -08:00
kfence.h ARM: 9166/1: Support KFENCE for ARM 2021-12-17 11:34:38 +00:00
kgdb.h ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size 2018-05-19 11:53:46 +01:00
kprobes.h kprobes: unify kprobes_exceptions_nofify() prototypes 2023-11-10 19:59:05 +09:00
krait-l2-accessors.h ARM: Add Krait L2 register accessor functions 2018-10-17 13:14:33 -07:00
linkage.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mc146818rtc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mcpm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mcs_spinlock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memblock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memory.h ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
mman.h ARM: prctl: reject PR_SET_MDWE on pre-ARMv6 2024-03-26 11:07:22 -07:00
mmu.h ARM: mm: make vmalloc_seq handling SMP safe 2022-01-25 09:53:52 +01:00
mmu_context.h ARM: mm: make vmalloc_seq handling SMP safe 2022-01-25 09:53:52 +01:00
module.h ARM: 9252/1: module: Teach unwinder about PLTs 2022-11-07 14:18:59 +00:00
module.lds.h kbuild: preprocess module linker script 2020-09-25 00:36:41 +09:00
mpu.h ARM: 8757/1: NOMMU: Support PMSAv8 MPU 2018-05-19 11:53:46 +01:00
mtd-xip.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
neon.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
nwflash.h misc: move FLASH_MINOR into miscdevice.h and fix conflicts 2020-03-18 12:27:04 +01:00
opcodes-sec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
opcodes-virt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
opcodes.h ARM: 9145/1: patch: fix BE32 compilation 2021-10-25 13:12:36 +01:00
outercache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
page-nommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
page.h arch: define CONFIG_PAGE_SIZE_*KB on all architectures 2024-03-06 19:29:09 +01:00
paravirt.h x86/paravirt: Switch time pvops functions to use static_call() 2021-03-11 16:17:52 +01:00
paravirt_api_clock.h sched/headers: ARM needs asm/paravirt_api_clock.h too 2022-03-22 08:53:10 +01:00
patch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci.h PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h 2022-07-22 17:23:45 -05:00
percpu.h ARM: make get_current() and __my_cpu_offset() __always_inline 2022-01-31 16:06:35 +01:00
perf_event.h ARM: 9251/1: perf: Fix stacktraces for tracepoint events in THUMB2 kernels 2022-11-07 14:16:43 +00:00
pgalloc.h mm/thp: define default pmd_pgtable() 2021-07-01 11:06:03 -07:00
pgtable-2level-hwdef.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pgtable-2level-types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pgtable-2level.h mm/arm: remove pmd_thp_or_huge() 2024-04-25 20:55:47 -07:00
pgtable-3level-hwdef.h The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
pgtable-3level-types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pgtable-3level.h mm/arm: remove pmd_thp_or_huge() 2024-04-25 20:55:47 -07:00
pgtable-hwdef.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pgtable-nommu.h MM patches for 6.2-rc1. 2022-12-13 19:29:45 -08:00
pgtable.h arm/pgtable: define PFN_PTE_SHIFT 2024-02-22 10:24:50 -08:00
probes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
proc-fns.h ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y 2024-05-15 21:41:08 +01:00
processor.h kernel: exit: cleanup release_thread() 2022-09-11 21:55:07 -07:00
procinfo.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
prom.h ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address 2020-10-27 12:10:59 +00:00
psci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
ptdump.h arm: ptdump: rename CONFIG_DEBUG_WX to CONFIG_ARM_DEBUG_WX 2024-02-22 10:24:47 -08:00
ptrace.h ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement 2024-04-18 12:10:46 +01:00
seccomp.h arm: Enable seccomp architecture tracking 2020-11-20 11:16:34 -08:00
sections.h arm: Remove HYP/Stage-2 page-table support 2020-03-24 10:56:05 +00:00
secure_cntvoff.h ARM: smp: Add initialization of CNTVOFF 2018-05-08 14:50:42 +02:00
semihost.h serial: earlycon-arm-semihost: Move smh_putc() variants in respective arch's semihost.h 2023-01-19 14:58:19 +01:00
set_memory.h ARM: 9164/1: mm: Provide set_memory_valid() 2021-12-17 11:34:36 +00:00
setup.h vgacon: clean up global screen_info instances 2023-10-17 10:17:02 +02:00
shmparam.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signal.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
simd.h ARM: 9283/1: permit non-nested kernel mode NEON in softirq context 2023-01-11 16:21:21 +00:00
smp.h ARM: smp: Switch to hotplug core state synchronization 2023-05-15 13:44:57 +02:00
smp_plat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp_scu.h ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
smp_twd.h ARM: 8822/1: smp_twd: Remove legacy TWD registration 2019-02-01 21:44:10 +00:00
sparsemem.h ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
spectre.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
spinlock.h locking: Fix typos in comments 2021-03-22 02:45:52 +01:00
spinlock_types.h locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h 2021-12-07 15:14:12 +01:00
stackprotector.h stackprotector: actually use get_random_canary() 2022-11-18 02:18:10 +01:00
stacktrace.h ARM: 9258/1: stacktrace: Make stack walk callback consistent with generic code 2022-11-08 18:36:18 +00:00
string.h ARM: 9014/2: Replace string mem* functions for KASan 2020-10-27 12:11:06 +00:00
suspend.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
swab.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
switch_to.h ARM development updates for 5.18: 2022-03-23 17:35:57 -07:00
sync_bitops.h locking/atomic: arm: fix sync ops 2023-06-05 09:57:13 +02:00
syscall.h ARM: ptrace: Restore syscall skipping for tracers 2023-08-16 13:58:49 -07:00
syscalls.h ARM: 9309/1: add missing syscall prototypes 2023-06-19 09:35:55 +01:00
system_info.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
system_misc.h ARM: 9096/1: Remove arm_pm_restart() 2021-06-13 18:16:48 +01:00
tcm.h ARM: 9314/1: tcm: move tcm_init() prototype to asm/tcm.h 2023-06-19 09:35:59 +01:00
therm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
thread_info.h ARM: iwmmxt: Use undef hook to enable coprocessor for task 2023-05-17 15:08:22 +02:00
thread_notify.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
timex.h arm: use fallback for random_get_entropy() instead of zero 2022-05-13 23:59:23 +02:00
tlb.h arm: convert various functions to use ptdescs 2023-08-21 13:37:55 -07:00
tlbflush.h arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
tls.h ARM: smp: elide HWCAP_TLS checks or __entry_task updates on SMP+v6 2022-01-25 09:53:52 +01:00
topology.h sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure() 2024-04-24 12:08:01 +02:00
traps.h ARM: 9326/1: make <linux/uaccess.h> self-contained for ARM 2023-10-05 16:17:05 +01:00
uaccess-asm.h ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement 2024-04-18 12:10:46 +01:00
uaccess.h ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y 2024-05-15 21:41:08 +01:00
ucontext.h ARM: ep93xx: remove MaverickCrunch support 2021-08-04 13:30:04 +02:00
unified.h ARM: 9116/1: unified: Remove check for gcc < 4 2021-08-20 11:39:28 +01:00
unistd.h clone3-v5.3 2019-07-11 10:09:44 -07:00
unwind.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
uprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
user.h asm/user.h: killed unused macros 2022-01-30 21:17:00 -05:00
v7m.h irqchip: nvic: Use GENERIC_IRQ_MULTI_HANDLER 2021-12-06 12:49:16 +01:00
vdso.h arch: vdso: consolidate gettime prototypes 2023-11-23 11:32:32 +01:00
vermagic.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
vfp.h Revert part of ae1f8d793a ("ARM: 9304/1: add prototype for function called only from asm") 2023-08-15 10:07:48 +01:00
vfpmacros.h ARM: 8991/1: use VFP assembler mnemonics if available 2020-07-21 16:33:39 +01:00
vga.h console: fix up ARM screen_info reference 2023-10-17 16:34:02 +02:00
virt.h arm: Remove the ability to set HYP vectors outside of the decompressor 2020-03-24 10:56:05 +00:00
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00
vmlinux.lds.h objtool/idle: Validate __cpuidle code as noinstr 2023-01-13 11:48:15 +01:00
word-at-a-time.h kernel.h: removed REPEAT_BYTE from kernel.h 2024-02-01 09:47:59 -08:00
xor.h ARM: 9260/1: lib/xor: use r10 rather than r7 in xor_arm4regs_{2|3} 2022-11-07 14:19:03 +00:00