linux-stable/drivers/firmware
Ard Biesheuvel abfb7b686a efi/libstub/arm*: Pass latest memory map to the kernel
As reported by James Morse, the current libstub code involving the
annotated memory map only works somewhat correctly by accident, due
to the fact that a pool allocation happens to be reused immediately,
retaining its former contents on most implementations of the
UEFI boot services.

Instead of juggling memory maps, which makes the code more complex than
it needs to be, simply put placeholder values into the FDT for the memory
map parameters, and only write the actual values after ExitBootServices()
has been called.

Reported-by: James Morse <james.morse@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org>
Cc: 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-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org
Fixes: ed9cc156c4 ("efi/libstub: Use efi_exit_boot_services() in FDT")
Link: http://lkml.kernel.org/r/1482587963-20183-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-12-28 09:23:32 +01:00
..
broadcom tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
efi efi/libstub/arm*: Pass latest memory map to the kernel 2016-12-28 09:23:32 +01:00
google firmware-gsmi: Delete an unnecessary check before the function call "dma_pool_destroy" 2016-09-09 16:08:45 +01:00
meson firmware: Amlogic: Add secure monitor driver 2016-09-01 14:23:39 -07:00
tegra firmware: tegra: Add BPMP support 2016-11-18 14:33:43 +01:00
arm_scpi.c firmware: arm_scpi: add support for pre-v1.0 SCPI compatible 2016-11-17 16:31:20 +00:00
dcdbas.c dcdbas: Make use of smp_call_on_cpu() 2016-09-05 13:52:40 +02:00
dcdbas.h
dell_rbu.c
dmi-id.c dmi-id: don't free dev structure after calling device_register 2016-09-08 10:35:50 +02:00
dmi-sysfs.c firmware: dmi_scan: add SBMIOS entry and DMI tables 2015-06-25 09:06:56 +02:00
dmi_scan.c firmware: dmi_scan: Always show system identification string 2016-12-19 10:01:47 +01:00
edd.c [SCSI] edd: Treat "XPRS" host bus type the same as "PCI" 2011-10-31 13:26:19 +04:00
iscsi_ibft.c ibft: Expose iBFT acpi header via sysfs 2016-05-16 11:14:29 -04:00
iscsi_ibft_find.c efi: Make 'efi_enabled' a function to query EFI facilities 2013-01-30 11:51:59 -08:00
Kconfig Merge branch 'for-4.10-ti-sci-base' of https://github.com/t-kristo/linux-pm into next/drivers 2016-11-30 17:13:13 +01:00
Makefile Merge branch 'for-4.10-ti-sci-base' of https://github.com/t-kristo/linux-pm into next/drivers 2016-11-30 17:13:13 +01:00
memmap.c drivers/firmware/memmap.c: fix kernel-doc format 2015-06-25 17:00:41 -07:00
pcdp.c serial: 8250_early: Remove setup_early_serial8250_console() 2015-03-26 17:25:27 +01:00
pcdp.h
psci.c drivers: psci: Allow PSCI node to be disabled 2016-11-25 23:26:05 +01:00
psci_checker.c drivers: psci: PSCI checker module 2016-11-25 23:25:52 +01:00
qcom_scm-32.c firmware: qcom: scm: Expose PAS command 10 as reset-controller 2016-06-24 22:53:52 -05:00
qcom_scm-64.c firmware: qcom: scm: Expose PAS command 10 as reset-controller 2016-06-24 22:53:52 -05:00
qcom_scm.c firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails 2016-11-23 11:03:00 -06:00
qcom_scm.h firmware: qcom: scm: Expose PAS command 10 as reset-controller 2016-06-24 22:53:52 -05:00
qemu_fw_cfg.c driver core update for 4.7-rc1 2016-05-20 21:26:15 -07:00
raspberrypi.c ARM: bcm2835: Add the Raspberry Pi firmware driver 2015-10-14 15:30:06 -07:00
scpi_pm_domain.c firmware: scpi: add device power domain support using genpd 2016-06-21 10:26:51 +01:00
ti_sci.c firmware: ti_sci: Add support for reboot core service 2016-10-27 12:09:12 +03:00
ti_sci.h firmware: ti_sci: Add support for reboot core service 2016-10-27 12:09:12 +03:00