diff options
| author | Dimitri John Ledkov <dimitri.ledkov@canonical.com> | 2021-06-15 13:41:50 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-06-18 16:41:22 +0200 |
| commit | 7b034d9c1b08b3d06ad712283c1115a7fe39e354 (patch) | |
| tree | 741c2c99c90d7e652984c929bf46dffccaada251 /arch/s390/boot/compressed/Makefile | |
| parent | s390/decompressor: correct BOOT_HEAP_SIZE condition (diff) | |
| download | linux-7b034d9c1b08b3d06ad712283c1115a7fe39e354.tar.xz linux-7b034d9c1b08b3d06ad712283c1115a7fe39e354.zip | |
s390/boot: add zstd support
Enable ztsd support in s390/boot, to enable booting with zstd
compressed kernel when configured with CONFIG_KERNEL_ZSTD=y.
BOOT_HEAP_SIZE is defined to 0x30000 in this case. Actual decompressor
memory usage with allyesconfig is currently 0x26150.
BugLink: https://bugs.launchpad.net/bugs/1931725
Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com>
cc: Heiko Carstens <hca@linux.ibm.com>
cc: Vasily Gorbik <gor@linux.ibm.com>
cc: Christian Borntraeger <borntraeger@de.ibm.com>
cc: linux-s390@vger.kernel.org
Link: https://lore.kernel.org/r/20210615114150.325080-1-dimitri.ledkov@canonical.com
[gor: added BOOT_HEAP_SIZE for zstd]
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot/compressed/Makefile')
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index e941b165bd4f..660c799d875d 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -14,6 +14,7 @@ obj-y := $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o obj-all := $(obj-y) piggy.o syms.o targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4 +targets += vmlinux.bin.zst targets += info.bin syms.bin vmlinux.syms $(obj-all) KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR) @@ -63,6 +64,7 @@ suffix-$(CONFIG_KERNEL_LZ4) := .lz4 suffix-$(CONFIG_KERNEL_LZMA) := .lzma suffix-$(CONFIG_KERNEL_LZO) := .lzo suffix-$(CONFIG_KERNEL_XZ) := .xz +suffix-$(CONFIG_KERNEL_ZSTD) := .zst $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE $(call if_changed,gzip) @@ -76,6 +78,8 @@ $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE $(call if_changed,lzo) $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE $(call if_changed,xzkern) +$(obj)/vmlinux.bin.zst: $(vmlinux.bin.all-y) FORCE + $(call if_changed,zstd22) OBJCOPYFLAGS_piggy.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.vmlinux.bin.compressed $(obj)/piggy.o: $(obj)/vmlinux.bin$(suffix-y) FORCE |