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payloads: Add an option to compress secondary payloads 

Both GRUB and SeaBIOS can chainload lzma compressed payloads.
Therefore it is beneficial to compress secondary payloads
like Memtest86+, coreinfo, nvramcui,... for both size reasons and
often also speed reasons since the limiting factor is generally the
IO of the boot device.

Tested with SeaBIOS and memtest86+ master on Thinkpad X220.

Change-Id: Iddfd6fcf4112d255cc7b2b49b99bf5ea4d6f8db4
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/23639
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Arthur Heymans 2018-02-07 13:01:43 +01:00 committed by Martin Roth
parent 9be42b5953
commit 47dd96db97
4 changed files with 16 additions and 0 deletions
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5
Makefile.inc
View File

@ -350,6 +350,11 @@ ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZ4),y)
CBFS_PAYLOAD_COMPRESS_FLAG:=LZ4
endif
CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG:=none
ifeq ($(CONFIG_COMPRESS_SECONDARY_PAYLOAD),y)
CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG:=LZMA
endif
CBFS_PRERAM_COMPRESS_FLAG:=none
ifeq ($(CONFIG_COMPRESS_PRERAM_STAGES),y)
CBFS_PRERAM_COMPRESS_FLAG:=LZ4

7
payloads/Kconfig
View File

@ -82,6 +82,13 @@ config PAYLOAD_IS_FLAT_BINARY
Add the payload to cbfs as a flat binary type instead of as an
elf payload
config COMPRESS_SECONDARY_PAYLOAD
bool "Use LZMA compression for secondary payloads"
default y
help
In order to reduce the size secondary payloads take up in the
ROM chip they can be compressed using the LZMA algorithm.
menu "Secondary Payloads"
config COREINFO_SECONDARY_PAYLOAD

2
payloads/Makefile.inc
View File

@ -16,10 +16,12 @@
cbfs-files-$(CONFIG_COREINFO_SECONDARY_PAYLOAD) += img/coreinfo
img/coreinfo-file := payloads/coreinfo/build/coreinfo.elf
img/coreinfo-type := payload
img/coreinfo-compression := $(CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG)
cbfs-files-$(CONFIG_NVRAMCUI_SECONDARY_PAYLOAD) += img/nvramcui
img/nvramcui-file := payloads/nvramcui/nvramcui.elf
img/nvramcui-type := payload
img/nvramcui-compression := $(CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG)
PAYLOADS_LIST=\
payloads/coreinfo \

2
payloads/external/Makefile.inc vendored
View File

@ -185,12 +185,14 @@ payloads/external/tint/tint/tint.elf tint:
cbfs-files-$(CONFIG_TINT_SECONDARY_PAYLOAD) += img/tint
img/tint-file := payloads/external/tint/tint/tint.elf
img/tint-type := payload
img/tint-compression := $(CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG)
# Memtest86+
cbfs-files-$(CONFIG_MEMTEST_SECONDARY_PAYLOAD) += img/memtest
img/memtest-file := payloads/external/Memtest86Plus/memtest86plus/memtest
img/memtest-type := payload
img/memtest-compression := $(CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG)
ifeq ($(CONFIG_CONSOLE_SERIAL)$(CONFIG_DRIVERS_UART_8250IO),yy)
MEMTEST_SERIAL_OPTIONS=SERIAL_CONSOLE_DEFAULT=1 \