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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-12-02 05:38:54 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-03 15:01:27 +0100 |
| commit | 61130e203dca3ba1f0c510eb12f7a4294e31a834 (patch) | |
| tree | a96718f275df5029d775f4c7bea540ef8e879d30 /arch/powerpc/include | |
| parent | powerpc/book3s64/hash/kuep: Enable KUEP on hash (diff) | |
| download | linux-61130e203dca3ba1f0c510eb12f7a4294e31a834.tar.xz linux-61130e203dca3ba1f0c510eb12f7a4294e31a834.zip | |
powerpc/book3s64/kup: Check max key supported before enabling kup
Don't enable KUEP/KUAP if we support less than or equal to 3 keys.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201202043854.76406-1-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/kup.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kup.h b/arch/powerpc/include/asm/kup.h index 952be0414f43..f8ec679bd2de 100644 --- a/arch/powerpc/include/asm/kup.h +++ b/arch/powerpc/include/asm/kup.h @@ -44,6 +44,9 @@ #else /* !__ASSEMBLY__ */ +extern bool disable_kuep; +extern bool disable_kuap; + #include <linux/pgtable.h> void setup_kup(void); |