mirror_ubuntu-kernels/arch/arm64/kernel
Tyler Hicks 1e40d105da arm64: Extend the kernel command line from the bootloader
Provide support for additional kernel command line parameters to be
concatenated onto the end of the command line provided by the
bootloader. Additional parameters are specified in the CONFIG_CMDLINE
option when CONFIG_CMDLINE_EXTEND is selected, matching other
architectures and leveraging existing support in the FDT and EFI stub
code.

Special care must be taken for the arch-specific nokaslr parsing. Search
the bootargs FDT property and the CONFIG_CMDLINE when
CONFIG_CMDLINE_EXTEND is in use.

There are a couple of known use cases for this feature:

1) Switching between stable and development kernel versions, where one
   of the versions benefits from additional command line parameters,
   such as debugging options.
2) Specifying additional command line parameters, for additional tuning
   or debugging, when the bootloader does not offer an interactive mode.

Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Link: https://lore.kernel.org/r/20200921191557.350256-3-tyhicks@linux.microsoft.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-11-27 18:38:55 +00:00
..
probes arm64: kprobes: Use BRK instead of single-step when executing instructions out-of-line 2020-11-03 14:03:38 +00:00
vdso More arm64 updates for 5.10 2020-10-23 09:46:16 -07:00
vdso32 arm64: vdso32: Allow ld.lld to properly link the VDSO 2020-10-26 13:17:41 +00:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acpi_numa.c acpi: Create subtable parsing infrastructure 2019-04-04 18:41:12 +02:00
acpi_parking_protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
acpi.c arm64: permit ACPI core to map kernel memory used for table overrides 2020-09-30 22:27:51 +01:00
alternative.c arm64/alternatives: don't patch up internal branches 2020-07-09 14:57:59 +01:00
armv8_deprecated.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
asm-offsets.c KVM: arm64: Make struct kvm_regs userspace-only 2020-07-07 09:28:38 +01:00
cacheinfo.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
cpu_errata.c arm64: Add workaround for Arm Cortex-A77 erratum 1508412 2020-10-29 12:56:01 +00:00
cpu_ops.c arm64: Introduce get_cpu_ops() helper function 2020-03-24 17:24:19 +00:00
cpu-reset.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpu-reset.S arm64/relocate_kernel: remove redundant code 2020-09-11 19:06:25 +01:00
cpufeature.c Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
cpuidle.c arm64: Introduce get_cpu_ops() helper function 2020-03-24 17:24:19 +00:00
cpuinfo.c arm64: avoid -Woverride-init warning 2020-10-28 13:38:36 +00:00
crash_core.c arm64/crash_core: Export TCR_EL1.T1SZ in vmcoreinfo 2020-07-02 17:56:49 +01:00
crash_dump.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
debug-monitors.c arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM 2020-09-18 16:35:54 +01:00
efi-entry.S arm64 updates for 5.8 2020-06-01 15:18:27 -07:00
efi-header.S arm64: efi: increase EFI PE/COFF header padding to 64 KB 2020-10-28 14:02:03 +00:00
efi-rt-wrapper.S Merge branch 'for-next/scs' into for-next/core 2020-05-28 18:03:40 +01:00
efi.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
entry-common.c arm64: ptrauth: Introduce Armv8.3 pointer authentication enhancements 2020-09-14 12:07:02 +01:00
entry-fpsimd.S arm64/sve: Implement a helper to load SVE registers from FPSIMD state 2020-09-21 18:06:33 +01:00
entry-ftrace.S arm64: entry-ftrace.S: Update comment to indicate that x18 is live 2020-05-18 17:47:50 +01:00
entry.S arm64: Add workaround for Arm Cortex-A77 erratum 1508412 2020-10-29 12:56:01 +00:00
fpsimd.c arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks 2020-10-15 10:50:09 +01:00
ftrace.c arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS 2020-06-08 15:44:59 +01:00
head.S Revert "arm64: initialize per-cpu offsets earlier" 2020-10-09 11:24:17 +01:00
hibernate-asm.S arm64: kernel: Convert to modern annotations for assembly functions 2020-05-04 12:46:03 +01:00
hibernate.c Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
hw_breakpoint.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hyp-stub.S arm64: kernel: Convert to modern annotations for assembly functions 2020-05-04 12:46:03 +01:00
image-vars.h KVM/arm64 fixes for 5.10, take #1 2020-10-30 13:25:09 -04:00
image.h arm64: get rid of TEXT_OFFSET 2020-09-07 15:00:52 +01:00
insn.c arm64: kprobe: disable probe of fault prone ptrauth instruction 2020-09-14 12:07:02 +01:00
io.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
irq.c arm64: Remove custom IRQ stat accounting 2020-09-17 16:37:28 +01:00
jump_label.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kaslr.c arm64: Extend the kernel command line from the bootloader 2020-11-27 18:38:55 +00:00
kexec_image.c arm64: kexec_file: try more regions if loading segments fails 2020-11-05 21:48:05 +00:00
kgdb.c arm64: kgdb: Fix single-step exception handling oops 2020-07-08 22:18:54 +01:00
kuser32.S docs: arm: convert docs to ReST and rename to *.rst 2019-07-15 09:20:24 -03:00
machine_kexec_file.c arm64: kexec_file: try more regions if loading segments fails 2020-11-05 21:48:05 +00:00
machine_kexec.c arm64: fix the flush_icache_range arguments in machine_kexec 2020-05-11 12:02:14 +01:00
Makefile Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
module-plts.c arm64/module: set trampoline section flags regardless of CONFIG_DYNAMIC_FTRACE 2020-09-02 08:35:33 +01:00
module.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mte.c arm64: mte: Enable swap of tagged pages 2020-09-04 12:46:07 +01:00
paravirt.c arm64: paravirt: Initialize steal time when cpu is online 2020-09-17 18:12:18 +01:00
pci.c PCI: Constify struct pci_ecam_ops 2020-05-01 16:28:59 +01:00
perf_callchain.c arm64: stacktrace: Make stack walk callback consistent with generic code 2020-09-18 14:24:16 +01:00
perf_event.c arm64: perf: Defer irq_work to IPI_IRQ_WORK 2020-09-28 19:00:17 +01:00
perf_regs.c arm64: fix some spelling mistakes in the comments by codespell 2020-09-07 14:18:50 +01:00
pointer_auth.c arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks 2020-10-15 10:50:09 +01:00
process.c Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
proton-pack.c KVM: arm64: ARM_SMCCC_ARCH_WORKAROUND_1 doesn't return SMCCC_RET_NOT_REQUIRED 2020-10-28 11:13:36 +00:00
psci.c arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill() 2019-10-25 16:29:11 +01:00
ptrace.c arm64: mte: ptrace: Add NT_ARM_TAGGED_ADDR_CTRL regset 2020-09-04 12:46:07 +01:00
reloc_test_core.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
reloc_test_syms.S arm64: kernel: Convert to modern annotations for assembly functions 2020-05-04 12:46:03 +01:00
relocate_kernel.S arm64/relocate_kernel: remove redundant code 2020-09-11 19:06:25 +01:00
return_address.c arm64: stacktrace: Make stack walk callback consistent with generic code 2020-09-18 14:24:16 +01:00
scs.c scs: Move DEFINE_SCS macro into core code 2020-05-18 17:47:48 +01:00
sdei.c uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
setup.c memblock: use separate iterators for memory and reserved regions 2020-10-13 18:38:35 -07:00
signal32.c arm64: compat: Always use sigpage for sigreturn trampoline 2020-06-23 14:56:24 +01:00
signal.c tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume() 2020-10-17 15:04:36 -06:00
sigreturn32.S arm64: compat: Split kuser32 2019-04-23 18:01:57 +01:00
sleep.S Merge branch 'for-next/bti' into for-next/core 2020-05-28 18:00:51 +01:00
smccc-call.S arm64/kernel: Remove needless Call Frame Information annotations 2020-09-01 09:50:36 +02:00
smp_spin_table.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
smp.c arm64/smp: Move rcu_cpu_starting() earlier 2020-10-30 08:13:18 +00:00
stacktrace.c arm64: Move console stack display code to stacktrace.c 2020-09-21 19:43:03 +01:00
suspend.c Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
sys32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452 2019-06-19 17:09:08 +02:00
sys_compat.c arm64: Silence clang warning on mismatched value/register sizes 2019-10-28 09:13:21 +00:00
sys.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
syscall.c arm64: mte: Handle synchronous and asynchronous tag check faults 2020-09-04 12:46:06 +01:00
time.c arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-12 17:26:38 +00:00
topology.c Power management updates for 5.10-rc1 2020-10-14 10:45:41 -07:00
trace-events-emulation.h
traps.c Merge branches 'for-next/acpi', 'for-next/boot', 'for-next/bpf', 'for-next/cpuinfo', 'for-next/fpsimd', 'for-next/misc', 'for-next/mm', 'for-next/pci', 'for-next/perf', 'for-next/ptrauth', 'for-next/sdei', 'for-next/selftests', 'for-next/stacktrace', 'for-next/svm', 'for-next/topology', 'for-next/tpyos' and 'for-next/vdso' into for-next/core 2020-10-02 12:01:41 +01:00
vdso.c arm64: vdso: Fix unusual formatting in *setup_additional_pages() 2020-09-01 13:37:57 +01:00
vmlinux.lds.S arm64: vmlinux.lds: account for spurious empty .igot.plt sections 2020-10-28 13:44:24 +00:00