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Ard Biesheuvel f80fb3a3d5 arm64: add support for kernel ASLR ... This adds support for KASLR is implemented, based on entropy provided by the bootloader in the /chosen/kaslr-seed DT property. Depending on the size of the address space (VA_BITS) and the page size, the entropy in the virtual displacement is up to 13 bits (16k/2 levels) and up to 25 bits (all 4 levels), with the sidenote that displacements that result in the kernel image straddling a 1GB/32MB/512MB alignment boundary (for 4KB/16KB/64KB granule kernels, respectively) are not allowed, and will be rounded up to an acceptable value. If CONFIG_RANDOMIZE_MODULE_REGION_FULL is enabled, the module region is randomized independently from the core kernel. This makes it less likely that the location of core kernel data structures can be determined by an adversary, but causes all function calls from modules into the core kernel to be resolved via entries in the module PLTs. If CONFIG_RANDOMIZE_MODULE_REGION_FULL is not enabled, the module region is randomized by choosing a page aligned 128 MB region inside the interval [_etext - 128 MB, _stext + 128 MB). This gives between 10 and 14 bits of entropy (depending on page size), independently of the kernel randomization, but still guarantees that modules are within the range of relative branch and jump instructions (with the caveat that, since the module region is shared with other uses of the vmalloc area, modules may need to be loaded further away if the module region is exhausted) Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		9 years ago
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xen	xen/events: Support event channel rebind on ARM	10 years ago
Kbuild	mm: clean up per architecture MM hook header files	10 years ago
acenv.h	…
acpi.h	arm64: kernel: implement ACPI parking protocol	9 years ago
alternative.h	arm64: switch to relative exception tables	9 years ago
arch_gicv3.h	irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor	9 years ago
arch_timer.h	…
arm-cci.h	…
asm-offsets.h	…
assembler.h	arm64: switch to relative exception tables	9 years ago
atomic.h	arm64 updates for 4.4:	9 years ago
atomic_ll_sc.h	arm64: cmpxchg_dbl: fix return value type	9 years ago
atomic_lse.h	arm64: cmpxchg_dbl: fix return value type	9 years ago
barrier.h	arm64: define __smp_xxx	9 years ago
bitops.h	…
bitrev.h	…
boot.h	arm64: allow kernel Image to be loaded anywhere in physical memory	9 years ago
brk-imm.h	arm64: move brk immediate argument definitions to separate header	9 years ago
bug.h	arm64: move brk immediate argument definitions to separate header	9 years ago
cache.h	arm64: Increase the max granular size	9 years ago
cacheflush.h	arm64: Use PoU cache instr for I/D coherency	9 years ago
cachetype.h	arm64: cachetype: fix definitions of ICACHEF_* flags	9 years ago
cmpxchg.h	arm64: cmpxchg: Don't incldue linux/mmdebug.h	9 years ago
compat.h	arm64: do not include ptrace.h from compat.h	9 years ago
compiler.h	…
cpu.h	arm64: add ARMv8.2 id_aa64mmfr2 boiler plate	9 years ago
cpu_ops.h	…
cpufeature.h	arm64: kernel: Don't toggle PAN on systems with UAO	9 years ago
cpuidle.h	…
cputype.h	arm64: cpufeature: Change read_cpuid() to use sysreg's mrs_s macro	9 years ago
dcc.h	ARM64: TTY: hvc_dcc: Add support for ARM64 dcc	9 years ago
debug-monitors.h	arm64: move brk immediate argument definitions to separate header	9 years ago
device.h	…
dma-mapping.h	dma-mapping: always provide the dma_map_ops based implementation	9 years ago
dmi.h	…
efi.h	arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM	9 years ago
elf.h	arm64: add support for building vmlinux as a relocatable PIE binary	9 years ago
esr.h	arm64/debug: Add missing #includes	10 years ago
exception.h	arm64: Add __exception_irq_entry definition for function graph	10 years ago
exec.h	…
fb.h	…
fixmap.h	arm64: mm: add functions to walk tables in fixmap	9 years ago
fpsimd.h	…
fpsimdmacros.h	…
ftrace.h	arm64: ftrace: fix a stack tracer's output under function graph tracer	9 years ago
futex.h	arm64: switch to relative exception tables	9 years ago
hardirq.h	arm64: kernel: implement ACPI parking protocol	9 years ago
hugetlb.h	arm64: hugetlb: add support for PTE contiguous bit	9 years ago
hw_breakpoint.h	arm64: debug: Treat the BRPs/WRPs as unsigned	9 years ago
hwcap.h	arm64/HWCAP: Use system wide safe values	9 years ago
hypervisor.h	…
insn.h	…
io.h	Revert "arm64: ioremap: add ioremap_cache macro"	9 years ago
irq.h	arm64: remove irq_count and do_softirq_own_stack()	9 years ago
irq_work.h	arm64: force CONFIG_SMP=y and remove redundant #ifdefs	10 years ago
irqflags.h	…
jump_label.h	locking/static_keys: Add a new static_key interface	10 years ago
kasan.h	arm64: move kernel image to base of vmalloc area	9 years ago
kernel-pgtable.h	arm64: allow kernel Image to be loaded anywhere in physical memory	9 years ago
kgdb.h	…
kvm_arm.h	arm64: KVM: Obey RES0/1 reserved bits when setting CPTR_EL2	9 years ago
kvm_asm.h	arm64: allow kernel Image to be loaded anywhere in physical memory	9 years ago
kvm_coproc.h	…
kvm_emulate.h	arm64: KVM: Fix wrong use of the CPSR MODE mask for 32bit guests	9 years ago
kvm_host.h	arm64: kvm: deal with kernel symbols outside of linear mapping	9 years ago
kvm_mmio.h	arm64: KVM: Turn system register numbers to an enum	9 years ago
kvm_mmu.h	kvm: rename pfn_t to kvm_pfn_t	9 years ago
kvm_psci.h	…
linkage.h	…
lse.h	arm64: lse: rename ARM64_CPU_FEAT_LSE_ATOMICS for consistency	10 years ago
memblock.h	…
memory.h	arm64: add support for kernel ASLR	9 years ago
mmu.h	arm64: mm: rewrite ASID allocator and MM context-switching code	9 years ago
mmu_context.h	arm64: mm: add code to safely replace TTBR1_EL1	9 years ago
module.h	arm64: add support for kernel ASLR	9 years ago
neon.h	…
opcodes.h	…
page.h	arm64: asm: Explicitly include linux/personality.h in asm/page.h	9 years ago
paravirt.h	arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops	9 years ago
pci.h	…
percpu.h	arm64: force CONFIG_SMP=y and remove redundant #ifdefs	10 years ago
perf_event.h	arm64: perf: factor out callchain code	10 years ago
pgalloc.h	arm64: mm: add __{pud,pgd}_populate	9 years ago
pgtable-hwdef.h	arm64: hugetlb: add support for PTE contiguous bit	9 years ago
pgtable-types.h	…
pgtable.h	arm64: move kernel image to base of vmalloc area	9 years ago
proc-fns.h	…
processor.h	arm64: kernel: Add support for User Access Override	9 years ago
ptrace.h	arm64: Fix compat register mappings	9 years ago
seccomp.h	…
shmparam.h	arm64: fix COMPAT_SHMLBA definition for large pages	9 years ago
signal32.h	…
smp.h	arm64: kernel: implement ACPI parking protocol	9 years ago
smp_plat.h	arm64: remove dead-code depending on CONFIG_UP_LATE_INIT	10 years ago
sparsemem.h	…
spinlock.h	arm64: spinlock: serialise spin_unlock_wait against concurrent lockers	9 years ago
spinlock_types.h	arm64: include linux/types.h in asm/spinlock_types.h	10 years ago
stackprotector.h	…
stacktrace.h	arm64: ftrace: fix a stack tracer's output under function graph tracer	9 years ago
stat.h	…
string.h	arm64: add KASAN support	9 years ago
suspend.h	…
sync_bitops.h	…
syscall.h	…
sysreg.h	arm64: kernel: Add support for User Access Override	9 years ago
system_misc.h	arm64: use private ratelimit state along with show_unhandled_signals	10 years ago
thread_info.h	arm64: Remove the get_thread_info() function	9 years ago
timex.h	…
tlb.h	arm64: tlbflush: avoid flushing when fullmm == 1	9 years ago
tlbflush.h	arm64: tlb: remove redundant barrier from __flush_tlb_pgtable	9 years ago
topology.h	arm64: force CONFIG_SMP=y and remove redundant #ifdefs	10 years ago
traps.h	arm64: Add __exception_irq_entry definition for function graph	10 years ago
uaccess.h	arm64: switch to relative exception tables	9 years ago
unistd.h	arm64: compat: wire up new syscalls	9 years ago
unistd32.h	arm64: compat: wire up new syscalls	9 years ago
vdso.h	…
vdso_datapage.h	…
virt.h	…
word-at-a-time.h	arm64: switch to relative exception tables	9 years ago