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a7f8de168a
linux/arch/arm64/include/asm
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Ard Biesheuvel a7f8de168a arm64: allow kernel Image to be loaded anywhere in physical memory 
This relaxes the kernel Image placement requirements, so that it
may be placed at any 2 MB aligned offset in physical memory.

This is accomplished by ignoring PHYS_OFFSET when installing
memblocks, and accounting for the apparent virtual offset of
the kernel Image. As a result, virtual address references
below PAGE_OFFSET are correctly mapped onto physical references
into the kernel Image regardless of where it sits in memory.

Special care needs to be taken for dealing with memory limits passed
via mem=, since the generic implementation clips memory top down, which
may clip the kernel image itself if it is loaded high up in memory. To
deal with this case, we simply add back the memory covering the kernel
image, which may result in more memory to be retained than was passed
as a mem= parameter.

Since mem= should not be considered a production feature, a panic notifier
handler is installed that dumps the memory limit at panic time if one was
set.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-02-18 18:16:53 +00:00
..
xen xen/events: Support event channel rebind on ARM 2015-08-20 12:24:15 +01:00
acenv.h
acpi.h arm64: kernel: implement ACPI parking protocol 2016-02-16 15:12:32 +00:00
alternative.h arm64: kernel: Add support for User Access Override 2016-02-18 17:27:04 +00:00
arch_gicv3.h irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor 2016-02-11 10:20:02 +00:00
arch_timer.h
arm-cci.h
asm-offsets.h
assembler.h arm64: Add this_cpu_ptr() assembler macro for use in entry.S 2015-12-10 12:08:09 +00:00
atomic_ll_sc.h arm64: cmpxchg_dbl: fix return value type 2015-11-05 17:29:40 +00:00
atomic_lse.h arm64: cmpxchg_dbl: fix return value type 2015-11-05 17:29:40 +00:00
atomic.h arm64 updates for 4.4: 2015-11-04 14:47:13 -08:00
barrier.h arm64: define __smp_xxx 2016-01-12 20:46:53 +02:00
bitops.h
bitrev.h
boot.h arm64: allow kernel Image to be loaded anywhere in physical memory 2016-02-18 18:16:53 +00:00
bug.h arm64: prevent potential circular header dependencies in asm/bug.h 2016-02-18 18:16:11 +00:00
cache.h arm64: Increase the max granular size 2015-10-28 19:09:17 +00:00
cacheflush.h arm64: Use PoU cache instr for I/D coherency 2015-12-17 11:07:13 +00:00
cachetype.h arm64: cachetype: fix definitions of ICACHEF_* flags 2015-10-28 18:32:12 +00:00
cmpxchg.h arm64: cmpxchg: Don't incldue linux/mmdebug.h 2015-12-10 17:36:09 +00:00
compat.h arm64: do not include ptrace.h from compat.h 2015-11-17 13:24:36 +00:00
compiler.h
cpu_ops.h
cpu.h arm64: add ARMv8.2 id_aa64mmfr2 boiler plate 2016-02-18 12:00:01 +00:00
cpufeature.h arm64: kernel: Don't toggle PAN on systems with UAO 2016-02-18 17:27:05 +00:00
cpuidle.h
cputype.h arm64: cpufeature: Change read_cpuid() to use sysreg's mrs_s macro 2016-02-18 11:59:54 +00:00
dcc.h ARM64: TTY: hvc_dcc: Add support for ARM64 dcc 2015-10-04 17:49:27 +01:00
debug-monitors.h arm64: prevent potential circular header dependencies in asm/bug.h 2016-02-18 18:16:11 +00:00
device.h
dma-mapping.h dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
dmi.h
efi.h arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM 2015-12-09 16:57:23 +00:00
elf.h
esr.h arm64/debug: Add missing #includes 2015-07-27 11:08:42 +01:00
exception.h arm64: Add __exception_irq_entry definition for function graph 2015-08-12 17:23:45 +01:00
exec.h
fb.h
fixmap.h arm64: mm: add functions to walk tables in fixmap 2016-02-16 15:10:46 +00:00
fpsimd.h
fpsimdmacros.h
ftrace.h arm64: ftrace: fix a stack tracer's output under function graph tracer 2015-12-21 17:26:02 +00:00
futex.h arm64: futex.h: Add missing PAN toggling 2016-02-02 15:59:21 +00:00
hardirq.h arm64: kernel: implement ACPI parking protocol 2016-02-16 15:12:32 +00:00
hugetlb.h arm64: hugetlb: add support for PTE contiguous bit 2015-12-21 17:26:00 +00:00
hw_breakpoint.h arm64: debug: Treat the BRPs/WRPs as unsigned 2015-11-26 18:08:36 +00:00
hwcap.h arm64/HWCAP: Use system wide safe values 2015-10-21 15:35:58 +01:00
hypervisor.h
insn.h
io.h Revert "arm64: ioremap: add ioremap_cache macro" 2015-10-13 16:18:17 +01:00
irq_work.h
irq.h arm64: remove irq_count and do_softirq_own_stack() 2015-12-21 17:26:01 +00:00
irqflags.h
jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
kasan.h arm64: move kernel image to base of vmalloc area 2016-02-18 18:16:44 +00:00
Kbuild
kernel-pgtable.h arm64: allow kernel Image to be loaded anywhere in physical memory 2016-02-18 18:16:53 +00:00
kgdb.h
kvm_arm.h arm64: KVM: Obey RES0/1 reserved bits when setting CPTR_EL2 2016-01-24 21:55:58 +00:00
kvm_asm.h arm64: allow kernel Image to be loaded anywhere in physical memory 2016-02-18 18:16:53 +00:00
kvm_coproc.h
kvm_emulate.h arm64: KVM: Fix wrong use of the CPSR MODE mask for 32bit guests 2016-01-24 21:55:59 +00:00
kvm_host.h arm64: kvm: deal with kernel symbols outside of linear mapping 2016-02-18 18:16:40 +00:00
kvm_mmio.h arm64: KVM: Turn system register numbers to an enum 2015-12-14 11:30:43 +00:00
kvm_mmu.h kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
kvm_psci.h
linkage.h
lse.h arm64: lse: rename ARM64_CPU_FEAT_LSE_ATOMICS for consistency 2015-07-27 15:28:54 +01:00
memblock.h
memory.h arm64: allow kernel Image to be loaded anywhere in physical memory 2016-02-18 18:16:53 +00:00
mmu_context.h arm64: mm: add code to safely replace TTBR1_EL1 2016-02-16 15:10:45 +00:00
mmu.h arm64: mm: rewrite ASID allocator and MM context-switching code 2015-10-07 11:55:41 +01:00
module.h
neon.h
opcodes.h
page.h arm64: asm: Explicitly include linux/personality.h in asm/page.h 2016-02-03 19:22:02 +00:00
paravirt.h arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops 2015-12-21 14:40:54 +00:00
pci.h
percpu.h
perf_event.h
pgalloc.h arm64: mm: add __{pud,pgd}_populate 2016-02-16 15:10:46 +00:00
pgtable-hwdef.h arm64: hugetlb: add support for PTE contiguous bit 2015-12-21 17:26:00 +00:00
pgtable-types.h
pgtable.h arm64: move kernel image to base of vmalloc area 2016-02-18 18:16:44 +00:00
proc-fns.h
processor.h arm64: kernel: Add support for User Access Override 2016-02-18 17:27:04 +00:00
ptrace.h arm64: Fix compat register mappings 2015-10-29 16:55:15 +00:00
seccomp.h
shmparam.h arm64: fix COMPAT_SHMLBA definition for large pages 2015-12-02 14:00:10 +00:00
signal32.h
smp_plat.h arm64: remove dead-code depending on CONFIG_UP_LATE_INIT 2015-07-29 18:32:09 +01:00
smp.h arm64: kernel: implement ACPI parking protocol 2016-02-16 15:12:32 +00:00
sparsemem.h
spinlock_types.h arm64: include linux/types.h in asm/spinlock_types.h 2015-07-27 11:09:34 +01:00
spinlock.h arm64: spinlock: serialise spin_unlock_wait against concurrent lockers 2015-12-03 19:37:59 +00:00
stackprotector.h
stacktrace.h arm64: ftrace: fix a stack tracer's output under function graph tracer 2015-12-21 17:26:02 +00:00
stat.h
string.h arm64: add KASAN support 2015-10-12 17:46:36 +01:00
suspend.h
sync_bitops.h
syscall.h
sysreg.h arm64: kernel: Add support for User Access Override 2016-02-18 17:27:04 +00:00
system_misc.h
thread_info.h arm64: Remove the get_thread_info() function 2016-02-18 17:27:05 +00:00
timex.h
tlb.h arm64: tlbflush: avoid flushing when fullmm == 1 2015-10-07 11:56:21 +01:00
tlbflush.h arm64: tlb: remove redundant barrier from __flush_tlb_pgtable 2015-10-07 11:56:33 +01:00
topology.h
traps.h arm64: Add __exception_irq_entry definition for function graph 2015-08-12 17:23:45 +01:00
uaccess.h arm64: kernel: Don't toggle PAN on systems with UAO 2016-02-18 17:27:05 +00:00
unistd32.h arm64: compat: wire up new syscalls 2015-10-14 13:51:41 +01:00
unistd.h arm64: compat: wire up new syscalls 2015-10-14 13:51:41 +01:00
vdso_datapage.h
vdso.h
virt.h
word-at-a-time.h