linux/drivers/firmware
Hans de Goede 52e1cf2d19 efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode
Commit:

  79832f0b5f ("efi/libstub/tpm: Initialize pointer variables to zero for mixed mode")

fixes a problem with the tpm code on mixed mode (64-bit kernel on 32-bit UEFI),
where 64-bit pointer variables are not fully initialized by the 32-bit EFI code.

A similar problem applies to the efi_physical_addr_t variables which
are written by the ->get_event_log() EFI call. Even though efi_physical_addr_t
is 64-bit everywhere, it seems that some 32-bit UEFI implementations only
fill in the lower 32 bits when passed a pointer to an efi_physical_addr_t
to fill.

This commit initializes these to 0 to, to ensure the upper 32 bits are
0 in mixed mode. This fixes recent kernels sometimes hanging during
early boot on mixed mode UEFI systems.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org> # v4.16+
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/20180622064222.11633-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-06-22 10:58:27 +02:00
..
arm_scmi ARM: SoC driver updates 2018-06-11 18:15:22 -07:00
broadcom firmware: bcm47xx_nvram: Support small (0x6000 B) NVRAM partitions 2018-04-23 16:39:35 +01:00
efi efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode 2018-06-22 10:58:27 +02:00
google firmware: coreboot: Add coreboot framebuffer driver 2018-04-23 13:37:19 +02:00
meson firmware: meson-sm: rework meson_sm_init to use module_platform_driver_probe 2018-03-07 17:33:52 -08:00
tegra firmware: tegra: adjust tested variable 2018-03-08 14:43:13 +01:00
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
dcdbas.c platform/x86: Fix dell driver init order 2018-03-14 11:05:53 -07:00
dcdbas.h
dell_rbu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
dmi_scan.c firmware: dmi: Add access to the SKU ID string 2018-06-17 14:09:42 +02:00
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
edd.c edd: don't spam log if no EDD information is present 2018-03-27 09:51:23 +02:00
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 ibft: Deprecate pci_get_bus_and_slot() 2018-01-11 17:26:55 -06:00
Kconfig firmware: arm_scmi: add device power domain support using genpd 2018-02-28 16:37:57 +00:00
Makefile firmware: arm_scmi: add basic driver infrastructure for SCMI 2018-02-28 16:37:57 +00:00
memmap.c drivers/firmware/memmap.c: fix kernel-doc format 2015-06-25 17:00:41 -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_checker.c drivers: psci: remove cluster terminology and dependency on physical_package_id 2018-01-17 12:59:33 +01:00
psci.c firmware/psci: Expose SMCCC version through psci_ops 2018-02-06 22:54:11 +00:00
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: Add ipq4019 soc compatible 2018-04-25 00:10:33 -05:00
qcom_scm.h remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
qemu_fw_cfg.c fw_cfg: write vmcoreinfo details 2018-03-20 03:17:41 +02:00
raspberrypi.c firmware: raspberrypi: print time using time64_t 2017-11-28 16:24:33 -08:00
scpi_pm_domain.c firmware: scpi: add device power domain support using genpd 2016-06-21 10:26:51 +01:00
ti_sci.c - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
ti_sci.h firmware: ti_sci: Switch to SPDX Licensing 2018-05-04 23:10:23 -07:00