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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-02-21 19:08:47 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-23 21:04:32 +1100 |
| commit | 166d97d961588d2e52037e96da18d2ead455cec1 (patch) | |
| tree | 2f26ec12a85caaf3a869dba0f680a3b04a26d720 /arch/powerpc/Kconfig | |
| parent | 555f4fdb93e70d39e664fcc52cda23c5b62a46cc (diff) | |
| download | linux-166d97d961588d2e52037e96da18d2ead455cec1.tar.gz linux-166d97d961588d2e52037e96da18d2ead455cec1.tar.bz2 linux-166d97d961588d2e52037e96da18d2ead455cec1.zip | |
powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT
CONFIG_STRICT_KERNEL_RWX requires a special alignment
for DATA for some subarches. Today it is just defined
as an #ifdef in vmlinux.lds.S
In order to get more flexibility, this patch moves the
definition of this alignment in Kconfig
On some subarches, CONFIG_STRICT_KERNEL_RWX will
require a special alignment of _etext.
This patch also adds a configuration item for it in Kconfig
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 0f933797c376..14223363a33d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -721,6 +721,15 @@ config THREAD_SHIFT Used to define the stack size. The default is almost always what you want. Only change this if you know what you are doing. +config ETEXT_SHIFT + int + default PPC_PAGE_SHIFT + +config DATA_SHIFT + int + default 24 if STRICT_KERNEL_RWX && PPC64 + default PPC_PAGE_SHIFT + config FORCE_MAX_ZONEORDER int "Maximum zone order" range 8 9 if PPC64 && PPC_64K_PAGES |