linux/drivers/firmware
Mark Salter 0ceac9e094 efi/arm64: Fix fdt-related memory reservation
Commit 86c8b27a01:
 "arm64: ignore DT memreserve entries when booting in UEFI mode

prevents early_init_fdt_scan_reserved_mem() from being called for
arm64 kernels booting via UEFI. This was done because the kernel
will use the UEFI memory map to determine reserved memory regions.
That approach has problems in that early_init_fdt_scan_reserved_mem()
also reserves the FDT itself and any node-specific reserved memory.
By chance of some kernel configs, the FDT may be overwritten before
it can be unflattened and the kernel will fail to boot. More subtle
problems will result if the FDT has node specific reserved memory
which is not really reserved.

This patch has the UEFI stub remove the memory reserve map entries
from the FDT as it does with the memory nodes. This allows
early_init_fdt_scan_reserved_mem() to be called unconditionally
so that the other needed reservations are made.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-09-09 07:51:09 +01:00
..
efi efi/arm64: Fix fdt-related memory reservation 2014-09-09 07:51:09 +01:00
google firmware: google memconsole driver fixes 2014-02-15 11:30:28 -08:00
dcdbas.c initconst: Fix initconst mistake in dcdbas 2014-02-13 18:14:54 -08:00
dcdbas.h
dell_rbu.c
dmi_scan.c firmware/dmi_scan: generalize for use by other archs 2014-01-23 16:36:57 -08:00
dmi-id.c dmi-id: fix a memory leak in dmi_id_init error path 2010-08-05 13:53:34 -07:00
dmi-sysfs.c firmware: dmi-sysfs: Remove "dmi" directory on module exit 2013-12-08 18:23:42 -08:00
edd.c [SCSI] edd: Treat "XPRS" host bus type the same as "PCI" 2011-10-31 13:26:19 +04:00
iscsi_ibft_find.c efi: Make 'efi_enabled' a function to query EFI facilities 2013-01-30 11:51:59 -08:00
iscsi_ibft.c iscsi_ibft: Fix finding Broadcom specific ibft sign 2014-05-13 14:54:14 -04:00
Kconfig ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
Makefile x86/efi: Don't select EFI from certain special ACPI drivers 2013-12-19 21:32:46 +01:00
memmap.c drivers/firmware/memmap.c: don't allocate firmware_map_entry of same memory range 2014-08-06 18:01:20 -07:00
pcdp.c pcdp: use early_ioremap/early_iounmap to access pcdp table 2012-07-30 17:25:11 -07:00
pcdp.h Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00