Ard Biesheuvel 138728dd4e efi/arm-stub: Correct FDT and initrd allocation rules for arm64 ... On arm64, we have made some changes over the past year to the way the kernel itself is allocated and to how it deals with the initrd and FDT. This patch brings the allocation logic in the EFI stub in line with that, which is necessary because the introduction of KASLR has created the possibility for the initrd to be allocated in a place where the kernel may not be able to map it. (This is mostly a theoretical scenario, since it only affects systems where the physical memory footprint exceeds the size of the linear mapping.) Since we know the kernel itself will be covered by the linear mapping, choose a suitably sized window (i.e., based on the size of the linear region) covering the kernel when allocating memory for the initrd. The FDT may be anywhere in memory on arm64 now that we map it via the fixmap, so we can lift the address restriction there completely. Tested-by: Richard Ruigrok <rruigrok@codeaurora.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20170404160245.27812-4-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-04-05 12:27:23 +02:00
..
hardware	ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>	2017-02-28 11:06:16 +00:00
mach	scripts/spelling.txt: add "partiton" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
xen	arm/arm64: xen: Move shared architecture headers to include/xen/arm	2016-12-02 11:49:55 -08:00
arch_gicv3.h	ARM: gic-v3-its: Add 32bit support to GICv3 ITS	2016-11-29 09:14:48 +00:00
arch_timer.h	clocksource: arch_timer: Fix code to use physical timers when requested	2014-12-04 23:30:26 -08:00
arm-cci.h	arm-cci: Get rid of secure transactions for PMU driver	2015-03-27 13:44:35 +00:00
asm-offsets.h
assembler.h	ARM: 8605/1: V7M: fix notrace variant of save_and_disable_irqs	2016-09-06 15:51:07 +01:00
atomic.h	locking/atomic: Remove linux/atomic.h:atomic_fetch_or()	2016-06-16 10:48:32 +02:00
auxvec.h	ARM: 8329/1: miscellaneous vdso infrastructure, preparation	2015-03-27 22:20:45 +00:00
barrier.h	ARM: 8582/1: remove unused CONFIG_ARCH_HAS_BARRIERS	2016-07-02 11:01:08 +01:00
bitops.h	ARM: 8417/1: refactor bitops functions with BIT_MASK() and BIT_WORD()	2015-08-18 14:00:30 +01:00
bitrev.h	ARM: 8287/1: add bitrev.h file to support rbit instruction	2015-01-16 14:06:18 +00:00
bL_switcher.h	ARM: bL_switcher: Add query interface to discover CPU affinities	2013-09-23 18:47:31 -04:00
bug.h	ARM: 8455/1: define __BUG as asm(BUG_INSTR) without CONFIG_BUG	2015-12-03 00:02:29 +00:00
bugs.h
cache.h
cacheflush.h	arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX	2017-02-07 12:32:52 -08:00
cachetype.h	ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype()	2016-09-06 15:51:07 +01:00
checksum.h	ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short	2016-03-13 23:55:13 -04:00
clocksource.h	arm/arm64: arch_timer: Use archdata to indicate vdso suitability	2016-09-23 17:19:25 +01:00
cmpxchg.h	ARM: 8443/1: Adding support for atomic half word exchange	2015-10-09 16:22:54 +01:00
compiler.h	ARM: 8300/1: teach __asmeq that r11 == fp and r12 == ip	2015-02-10 10:23:11 +00:00
cp15.h	ARM: Move system register accessors to asm/cp15.h	2016-09-22 13:22:10 +02:00
cpu.h
cpuidle.h	ARM: cpuidle: add const qualifier to cpuidle_ops member in structures	2016-04-20 06:59:10 +02:00
cputype.h	ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs	2017-01-10 23:32:26 +00:00
cti.h
dcc.h	ARM: tty: Move HVC DCC assembly to arch/arm	2014-05-28 13:33:18 -07:00
delay.h	ARM: 8619/1: udelay: document the various constants	2016-10-19 10:52:36 +01:00
device.h	treewide: Move dma_ops from struct dev_archdata into struct device	2017-01-24 12:23:35 -05:00
div64.h	ARM: 8504/1: __arch_xprod_64(): small optimization	2016-02-11 15:33:37 +00:00
dma-contiguous.h
dma-iommu.h	ARM: 8347/1: dma-mapping: fix off-by-one check in arm_setup_iommu_dma_ops	2015-05-03 23:21:55 +01:00
dma-mapping.h	treewide: Consolidate get_dma_ops() implementations	2017-01-24 12:23:35 -05:00
dma.h	remove <asm/scatterlist.h>	2015-05-05 13:35:39 -06:00
domain.h	ARM: 8573/1: domain: move {set,get}_domain under config guard	2016-05-05 19:03:02 +01:00
ecard.h
edac.h	EDAC: Cleanup atomic_scrub mess	2015-05-28 15:31:53 +02:00
efi.h	efi/arm-stub: Correct FDT and initrd allocation rules for arm64	2017-04-05 12:27:23 +02:00
elf.h	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-04-14 21:03:26 -07:00
entry-macro-multi.S	ARM: replace BSYM() with badr assembly macro	2015-05-08 17:33:50 +01:00
exception.h	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
fb.h
fiq.h
firmware.h	ARM: EXYNOS: add exynos_get_boot_addr() helper	2015-06-06 02:17:56 +09:00
fixmap.h	ARM: add support for generic early_ioremap/early_memremap	2015-12-13 19:18:28 +01:00
flat.h	ARM: 8594/1: enable binfmt_flat on systems with an MMU	2016-08-12 16:47:05 +01:00
floppy.h	ARM: 8584/1: floppy: avoid gcc-6 warning	2016-07-02 11:02:13 +01:00
fncpy.h
fpstate.h
ftrace.h	ARM: 8632/1: ftrace: fix syscall name matching	2017-01-10 23:32:25 +00:00
futex.h	ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore()	2015-08-25 16:14:43 +01:00
glue-cache.h	ARM: 8607/1: V7M: Wire up caches for V7M processors with cache support.	2016-09-06 15:51:08 +01:00
glue-df.h	ARM: 8065/1: remove last use of CONFIG_CPU_ARM710	2014-05-30 01:12:30 +01:00
glue-pf.h
glue-proc.h	ARM: 8103/1: save/restore Cortex-A9 CP15 registers on suspend/resume	2014-07-18 12:29:37 +01:00
glue.h
gpio.h	ARM: delete old reference to ARM_GPIOLIB_COMPLEX	2014-06-30 21:37:39 +02:00
hardirq.h	ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE	2015-12-22 12:09:43 +00:00
highmem.h	kmap_atomic_to_page() has no users, remove it	2015-11-09 15:11:24 -08:00
hugetlb-3level.h
hugetlb.h	mm/hugetlb: remove arch_prepare/release_hugepage from arch headers	2015-06-25 17:00:35 -07:00
hw_breakpoint.h	ARM: 8598/1: remove traces of perf_ops_bp	2016-08-23 10:09:23 +01:00
hw_irq.h	ARM: Remove ununsed set_irq_flags	2015-09-16 16:53:39 +02:00
hwcap.h	ARM: 7981/1: add support for AT_HWCAP2 ELF auxv entry	2014-02-25 11:40:48 +00:00
hypervisor.h
ide.h
idmap.h
insn.h	ARM: kprobes: enable OPTPROBES for ARM 32	2015-01-13 16:10:17 +00:00
io.h	arm, arm64: don't include blk_types.h in <asm/io.h>	2016-11-01 09:43:26 -06:00
irq_work.h	arm: Tell irq work about self IPI support	2014-09-13 18:38:39 +02:00
irq.h	nmi_backtrace: add more trigger_*_cpu_backtrace() methods	2016-10-07 18:46:30 -07:00
irqflags.h	ARM: 8422/1: enable imprecise aborts during early kernel startup	2015-09-22 08:13:56 +01:00
jump_label.h	locking/static_keys: Add a new static_key interface	2015-08-03 11:34:15 +02:00
Kbuild	sched/cputime: Remove generic asm headers	2017-02-01 09:14:07 +01:00
kexec.h	ARM: kexec: fix kexec for Keystone 2	2016-08-02 19:35:29 -04:00
kgdb.h	ARM: kdgb: use <asm/opcodes.h> for data to be assembled as intruction	2013-10-19 20:46:35 +01:00
kmap_types.h
kprobes.h	kprobes: move kprobe declarations to asm-generic/kprobes.h	2017-02-27 18:43:45 -08:00
kvm_arm.h	arm: KVM: Survive unknown traps from guests	2017-03-07 14:50:45 +00:00
kvm_asm.h	arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU	2016-11-04 17:56:28 +00:00
kvm_coproc.h
kvm_emulate.h	arm: KVM: Add Virtual Abort injection helper	2016-09-08 12:53:00 +02:00
kvm_host.h	KVM: arm/arm64: Remove KVM_PRIVATE_MEM_SLOTS definition that are unused	2017-03-09 09:13:45 +00:00
kvm_hyp.h	arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU	2016-11-04 17:56:28 +00:00
kvm_mmio.h	KVM: arm/arm64: Export mmio_read/write_bus	2016-05-20 15:39:42 +02:00
kvm_mmu.h	arm/arm64: KVM: Stop propagating cacheability status of a faulted page	2017-01-30 13:47:38 +00:00
kvm_psci.h	ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible	2014-04-30 04:18:57 -07:00
limits.h
linkage.h
mc146818rtc.h
mcpm.h	ARM: MCPM: remove residency argument from mcpm_cpu_suspend()	2015-05-06 11:47:10 -04:00
mcs_spinlock.h	ARM: 8098/1: mcs lock: implement wfe-based polling for MCS locking	2014-07-18 12:29:35 +01:00
memblock.h	ARM: 8025/1: Get rid of meminfo	2014-06-01 01:17:12 +01:00
memory.h	ARM: 8648/2: nommu: display vectors base	2017-02-28 11:06:14 +00:00
mmu_context.h	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
mmu.h	ARM: 8329/1: miscellaneous vdso infrastructure, preparation	2015-03-27 22:20:45 +00:00
module.h	ARM: kernel: merge core and init PLTs	2016-08-30 17:45:34 +01:00
mpu.h
mtd-xip.h
neon.h
nwflash.h
opcodes-sec.h
opcodes-virt.h
opcodes.h
outercache.h	ARM: move heavy barrier support out of line	2015-07-25 15:28:05 +01:00
page-nommu.h	asm-generic: page.h: Remove useless get_user_page and free_user_page	2016-02-26 15:24:55 +01:00
page.h
paravirt.h	arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops	2015-12-21 14:40:54 +00:00
patch.h	ARM: probes: move all probe code to dedicate directory	2015-01-09 09:36:50 +00:00
pci.h	PCI: Move pci_dma_* helpers to common code	2016-03-07 10:40:02 -06:00
percpu.h	ARM: 8174/1: Use global stack register variable for percpu	2014-11-13 23:58:06 +00:00
perf_event.h	arm: perf: Fix callchain parse error with kernel tracepoint events	2015-05-27 16:12:05 +01:00
pgalloc.h	arm: get rid of superfluous __GFP_REPEAT	2016-07-26 16:19:19 -07:00
pgtable-2level-hwdef.h	ARM: 8612/1: LPAE: initialize cache policy correctly	2016-09-12 12:12:30 +01:00
pgtable-2level-types.h
pgtable-2level.h	ARM: 8578/1: mm: ensure pmd_present only checks the valid bit	2016-06-09 17:51:47 +01:00
pgtable-3level-hwdef.h	ARM: 8612/1: LPAE: initialize cache policy correctly	2016-09-12 12:12:30 +01:00
pgtable-3level-types.h
pgtable-3level.h	ARM: 8579/1: mm: Fix definition of pmd_mknotpresent	2016-06-09 17:51:47 +01:00
pgtable-hwdef.h
pgtable-nommu.h	ARM: 8655/1: improve NOMMU definition of pgprot_*()	2017-02-28 11:06:19 +00:00
pgtable.h	arch, mm: convert all architectures to use 5level-fixup.h	2017-03-09 11:48:47 -08:00
probes.h	ARM: optprobes: execute instruction during restoring if possible.	2015-01-14 12:24:52 +00:00
proc-fns.h	ARM: redo TTBR setup code for LPAE	2015-06-01 23:48:19 +01:00
processor.h	locking/core: Provide common cpu_relax_yield() definition	2016-11-17 08:17:36 +01:00
procinfo.h
prom.h	of/fdt: move memreserve and dtb memory reservations into core	2014-04-30 00:59:17 -05:00
psci.h	ARM: SoC cleanups for v4.5	2016-01-20 17:55:20 -08:00
ptrace.h	ARM: save and reset the address limit when entering an exception	2016-07-07 16:01:01 +01:00
sections.h	ARM: 8518/1: Use correct symbols for XIP_KERNEL	2016-02-11 15:43:14 +00:00
setup.h	ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h	2016-01-04 11:26:00 +00:00
shmparam.h
signal.h
smp_plat.h	ARM: 8392/3: smp: Only expose /sys/.../cpuX/online if hotpluggable	2015-07-31 18:58:30 +01:00
smp_scu.h	ARM: make it easier to check the CPU part number correctly	2014-07-18 12:29:02 +01:00
smp_twd.h
smp.h	ARM: 8423/1: add const qualifier to smp_operations member in structures	2015-09-22 08:13:57 +01:00
sparsemem.h	ARM: 8411/1: Add default SPARSEMEM settings	2016-02-16 16:35:21 +00:00
spinlock_types.h	ARM: locks: prefetch the destination word for write prior to strex	2013-09-30 16:42:55 +01:00
spinlock.h	locking/spinlock, arch: Update and fix spin_unlock_wait() implementations	2016-06-14 11:55:15 +02:00
stackprotector.h
stacktrace.h	ARM: 8070/1: Introduce arm_get_current_stack_frame()	2014-07-18 12:29:11 +01:00
stage2_pgtable.h	kvm-arm: arm32: Introduce stage2 page table helpers	2016-04-21 14:57:26 +02:00
string.h
suspend.h	ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state	2015-06-12 21:17:17 +01:00
swab.h
switch_to.h	sched, arm: Remove finish_arch_switch()	2015-08-04 09:37:52 +02:00
sync_bitops.h	ARM: 7989/1: Delete asm/system.h	2014-02-25 11:33:37 +00:00
syscall.h	ARM: 8152/1: Convert pr_warning to pr_warn	2014-09-26 14:39:53 +01:00
system_info.h	ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo	2015-05-08 10:42:35 +01:00
system_misc.h
tcm.h
therm.h
thread_info.h	Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-09-14 12:24:10 -07:00
thread_notify.h
timex.h	ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, too	2013-12-20 17:17:16 +01:00
tlb.h	mm: remove the page size change check in tlb_remove_page	2016-12-12 18:55:07 -08:00
tlbflush.h	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
tls.h	ARM: 8178/1: fix set_tls for !CONFIG_KUSER_HELPERS	2014-09-30 16:55:23 +01:00
topology.h	sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()	2015-05-27 15:22:15 +02:00
traps.h
trusted_foundations.h	treewide: remove redundant #include <linux/kconfig.h>	2016-10-11 15:06:33 -07:00
uaccess.h	ARM: 8657/1: uaccess: consistently check object sizes	2017-02-16 15:58:31 +00:00
ucontext.h
unified.h	ARM: replace BSYM() with badr assembly macro	2015-05-08 17:33:50 +01:00
unistd.h	ARM: wire up new pkey syscalls	2016-10-19 10:18:47 +01:00
unwind.h
uprobes.h	ARM: add uprobes support	2014-03-18 16:39:40 -04:00
user.h
v7m.h	ARM: 8603/1: V7M: Add addresses for mem-mapped V7M cache operations	2016-09-06 15:51:06 +01:00
vdso_datapage.h	ARM: 8329/1: miscellaneous vdso infrastructure, preparation	2015-03-27 22:20:45 +00:00
vdso.h	ARM: 8329/1: miscellaneous vdso infrastructure, preparation	2015-03-27 22:20:45 +00:00
vfp.h	ARM: vfp: Add vfp_disable for problematic platforms	2015-05-20 15:07:00 -07:00
vfpmacros.h
vga.h
virt.h	KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems	2017-01-13 11:19:25 +00:00
word-at-a-time.h	ARM: 8322/1: keep .text and .fixup regions closer together	2015-03-29 23:11:56 +01:00
xor.h