linux/drivers/firmware
Ard Biesheuvel 976b489120 efi: Prevent GICv3 WARN() by mapping the memreserve table before first use
Mapping the MEMRESERVE EFI configuration table from an early initcall
is too late: the GICv3 ITS code that creates persistent reservations
for the boot CPU's LPI tables is invoked from init_IRQ(), which runs
much earlier than the handling of the initcalls. This results in a
WARN() splat because the LPI tables cannot be reserved persistently,
which will result in silent memory corruption after a kexec reboot.

So instead, invoke the initialization performed by the initcall from
efi_mem_reserve_persistent() itself as well, but keep the initcall so
that the init is guaranteed to have been called before SMP boot.

Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Jan Glauber <jglauber@cavium.com>
Tested-by: John Garry <john.garry@huawei.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
Fixes: 63eb322d89 ("efi: Permit calling efi_mem_reserve_persistent() ...")
Link: http://lkml.kernel.org/r/20181123215132.7951-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-27 13:50:20 +01:00
..
arm_scmi firmware: arm_scmi: add a getter for power of performance states 2018-09-10 17:37:06 +01:00
broadcom firmware: bcm47xx_nvram: Support small (0x6000 B) NVRAM partitions 2018-04-23 16:39:35 +01:00
efi efi: Prevent GICv3 WARN() by mapping the memreserve table before first use 2018-11-27 13:50:20 +01:00
google gsmi: Add GSMI commands to log S0ix info 2018-10-15 20:32:26 +02:00
imx firmware: imx: add misc svc support 2018-10-08 22:09:09 +08:00
meson firmware: meson_sm: Add serial number sysfs entry 2018-09-12 20:54:07 -07:00
tegra firmware: tegra: bpmp: Implement suspend/resume support 2018-10-10 16:47:22 +02:00
xilinx firmware: xilinx: Add zynqmp IOCTL API for device control 2018-10-09 13:26:21 +02:00
Kconfig platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
Makefile platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
arm_scpi.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
arm_sdei.c firmware: arm_sdei: Fix return value check in sdei_present_dt() 2018-01-15 18:16:59 +00:00
dmi-id.c firmware: dmi: Add access to the SKU ID string 2018-06-17 14:09:42 +02:00
dmi-sysfs.c firmware: dmi: handle missing DMI data gracefully 2018-02-03 11:25:20 +01:00
dmi_scan.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
edd.c edd: don't spam log if no EDD information is present 2018-03-27 09:51:23 +02:00
iscsi_ibft.c ibft: Deprecate pci_get_bus_and_slot() 2018-01-11 17:26:55 -06:00
iscsi_ibft_find.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
memmap.c memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
pcdp.c x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings 2017-07-18 11:37:58 +02:00
pcdp.h
psci.c firmware/psci: Expose SMCCC version through psci_ops 2018-02-06 22:54:11 +00:00
psci_checker.c drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests 2018-07-26 00:16:58 -07:00
qcom_scm-32.c firmware: qcom: scm: Fix crash in qcom_scm_call_atomic1() 2018-05-24 22:36:45 -05:00
qcom_scm-64.c remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
qcom_scm.c firmware: qcom: scm: Refactor clock handling 2018-09-14 00:31:52 -05:00
qcom_scm.h remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
qemu_fw_cfg.c media: headers: fix linux/mod_devicetable.h inclusions 2018-08-02 18:30:54 -04:00
raspberrypi.c firmware: raspberrypi: Remove VLA usage 2018-07-09 10:47:29 -07:00
scpi_pm_domain.c firmware: Convert to using %pOFn instead of device_node.name 2018-10-04 14:16:01 -05:00
ti_sci.c firmware: ti_sci: Provide host-id as an optional dt parameter 2018-08-28 13:22:13 -07:00
ti_sci.h firmware: ti_sci: Switch to SPDX Licensing 2018-05-04 23:10:23 -07:00