diff options
| author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2019-02-03 21:37:20 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 10:47:10 +0200 |
| commit | b2d24b97b2a9691351920e700bfda4368c177232 (patch) | |
| tree | afc715c3029b79cf1430781ffcbe39ff0656cadb /arch/s390/boot/Makefile | |
| parent | a80313ff91abda67641dc33bed97f6bcc5e9f6a4 (diff) | |
s390/kernel: add support for kernel address space layout randomization (KASLR)
This patch adds support for relocating the kernel to a random address.
The random kernel offset is obtained from cpacf, using either TRNG, PRNO,
or KMC_PRNG, depending on supported MSA level.
KERNELOFFSET is added to vmcoreinfo, for crash --kaslr support.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/boot/Makefile')
| -rw-r--r-- | arch/s390/boot/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile index 88932c25ad26..cb40317dc3f7 100644 --- a/arch/s390/boot/Makefile +++ b/arch/s390/boot/Makefile @@ -33,6 +33,7 @@ obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o obj-y += ctype.o text_dma.o obj-$(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) += uv.o obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o +obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o targets := bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y) subdir- := compressed |