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# SPDX-License-Identifier: GPL-2.0-only
menuconfig GOOGLE_FIRMWARE
bool "Google Firmware Drivers"
default n
help
These firmware drivers are used by Google's servers. They are
only useful if you are working directly on one of their
proprietary servers. 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 EFI_VARS is also enabled this
driver provides an interface for reading and writing NVRAM
variables.
config GOOGLE_COREBOOT_TABLE
tristate "Coreboot Table Access"
depends on 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