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| author | Heiko Carstens <hca@linux.ibm.com> | 2023-04-14 14:30:44 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2023-04-20 11:36:29 +0200 |
| commit | 0490d6d7ba0a479fdd805da54ae25220ce5b514d (patch) | |
| tree | ea909a411bcdc09f10a4070b3a0d1a9d15f37907 /arch/s390/Kconfig | |
| parent | 17c51b1ba9c2d4b497349ac1622aafe67be16103 (diff) | |
| download | lwn-0490d6d7ba0a479fdd805da54ae25220ce5b514d.tar.gz lwn-0490d6d7ba0a479fdd805da54ae25220ce5b514d.zip | |
s390/mm: enable ARCH_HAS_SET_DIRECT_MAP
Implement the set_direct_map_*() API, which allows to invalidate and set
default permissions to pages within the direct mapping.
Note that kernel_page_present(), which is also supposed to be part of this
API, is intentionally not implemented. The reason for this is that
kernel_page_present() is only used (and currently only makes sense) for
suspend/resume, which isn't supported on s390.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index a7568449ca59..37986abfe007 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -77,6 +77,7 @@ config S390 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_SCALED_CPUTIME + select ARCH_HAS_SET_DIRECT_MAP select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX |