linux-stable/drivers/firmware/efi
Ard Biesheuvel eff8962888 efi/arm: Defer persistent reservations until after paging_init()
The new memory EFI reservation feature we introduced to allow memory
reservations to persist across kexec may trigger an unbounded number
of calls to memblock_reserve(). The memblock subsystem can deal with
this fine, but not before memblock resizing is enabled, which we can
only do after paging_init(), when the memory we reallocate the array
into is actually mapped.

So break out the memreserve table processing into a separate routine
and call it after paging_init() on arm64. On ARM, because of limited
reviewing bandwidth of the maintainer, we cannot currently fix this,
so instead, disable the EFI persistent memreserve entirely on ARM so
we can fix it later.

Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20181114175544.12860-5-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-15 10:04:46 +01:00
..
libstub efi/arm: Defer persistent reservations until after paging_init() 2018-11-15 10:04:46 +01:00
test efi/efi_test: add exporting ResetSystem runtime service 2018-09-26 12:04:00 +02:00
apple-properties.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
arm-init.c efi/arm: Revert deferred unmap of early memmap mapping 2018-11-15 10:04:46 +01:00
arm-runtime.c efi/arm: Revert deferred unmap of early memmap mapping 2018-11-15 10:04:46 +01:00
capsule-loader.c efi/capsule-loader: Don't output reset log when reset flags are not set 2018-05-14 08:57:49 +02:00
capsule.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
cper-arm.c efi/cper: Remove the INDENT_SP silliness 2018-05-14 08:57:47 +02:00
cper-x86.c efi: Decode IA32/X64 Context Info structure 2018-05-14 08:57:48 +02:00
cper.c efi/cper: Use consistent types for UUIDs 2018-07-22 14:13:43 +02:00
dev-path-parser.c efi: Add device path parser 2016-11-13 08:23:15 +01:00
efi-bgrt.c efi/bgrt: Drop __initdata from bgrt_image_size 2018-07-03 17:43:10 +02:00
efi-pstore.c pstore: Convert internal records to timespec64 2018-06-05 16:57:31 -07:00
efi.c efi/arm: Defer persistent reservations until after paging_init() 2018-11-15 10:04:46 +01:00
efibc.c
efivars.c compat: Cleanup in_compat_syscall() callers 2018-11-01 13:02:21 +01:00
esrt.c efi/esrt: Only call efi_mem_reserve() for boot services memory 2018-07-17 09:15:05 +02:00
fake_mem.c x86/efi: Don't allocate memmap through memblock after mm_init() 2017-01-07 08:58:07 +01:00
Kconfig efi/libstub/arm: default EFI_ARMSTUB_DTB_LOADER to y 2018-09-12 16:41:41 +02:00
Makefile efi: Decode IA32/X64 Processor Error Section 2018-05-14 08:57:47 +02:00
memattr.c x86/efi: Add support for EFI_MEMORY_ATTRIBUTES_TABLE 2017-02-01 08:45:44 +01:00
memmap.c efi/arm: Revert deferred unmap of early memmap mapping 2018-11-15 10:04:46 +01:00
reboot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
runtime-map.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
runtime-wrappers.c efi: Fix debugobjects warning on 'efi_rts_work' 2018-11-15 10:04:45 +01:00
tpm.c efi: call get_event_log before ExitBootServices 2018-01-08 12:58:35 +02:00
vars.c efi: Don't use spinlocks for efi vars 2016-09-09 16:08:42 +01:00