Current File : //usr/src/linux-headers-5.15.0-125-generic/drivers/firmware/google/Kconfig
# SPDX-License-Identifier: GPL-2.0-only
menuconfig GOOGLE_FIRMWARE
bool "Google Firmware Drivers"
default n
help
These firmware drivers are used by Google servers,
Chromebooks and other devices using coreboot firmware.
If in doubt, say "N".
if GOOGLE_FIRMWARE
config GOOGLE_SMI
tristate "SMI interface for Google platforms"
depends on X86 && ACPI && DMI
help
Say Y here if you want to enable SMI callbacks for Google
platforms. This provides an interface for writing to and
clearing the event log. If CONFIG_EFI is also enabled this
driver provides an interface for reading and writing NVRAM
variables.
config GOOGLE_COREBOOT_TABLE
tristate "Coreboot Table Access"
depends on HAS_IOMEM && (ACPI || OF)
help
This option enables the coreboot_table module, which provides other
firmware modules access to the coreboot table. The coreboot table
pointer is accessed through the ACPI "GOOGCB00" object or the
device tree node /firmware/coreboot.
If unsure say N.
config GOOGLE_COREBOOT_TABLE_ACPI
tristate
select GOOGLE_COREBOOT_TABLE
config GOOGLE_COREBOOT_TABLE_OF
tristate
select GOOGLE_COREBOOT_TABLE
config GOOGLE_MEMCONSOLE
tristate
depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT
config GOOGLE_MEMCONSOLE_X86_LEGACY
tristate "Firmware Memory Console - X86 Legacy support"
depends on X86 && ACPI && DMI
select GOOGLE_MEMCONSOLE
help
This option enables the kernel to search for a firmware log in
the EBDA on Google servers. If found, this log is exported to
userland in the file /sys/firmware/log.
config GOOGLE_FRAMEBUFFER_COREBOOT
tristate "Coreboot Framebuffer"
depends on FB_SIMPLE
depends on GOOGLE_COREBOOT_TABLE
help
This option enables the kernel to search for a framebuffer in
the coreboot table. If found, it is registered with simplefb.
config GOOGLE_MEMCONSOLE_COREBOOT
tristate "Firmware Memory Console"
depends on GOOGLE_COREBOOT_TABLE
select GOOGLE_MEMCONSOLE
help
This option enables the kernel to search for a firmware log in
the coreboot table. If found, this log is exported to userland
in the file /sys/firmware/log.
config GOOGLE_VPD
tristate "Vital Product Data"
depends on GOOGLE_COREBOOT_TABLE
help
This option enables the kernel to expose the content of Google VPD
under /sys/firmware/vpd.
endif # GOOGLE_FIRMWARE
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