powerpc/kuap: Prepare for supporting KUAP on BOOK3E/64

Browse source

Also call kuap_lock() and kuap_save_and_lock() from
interrupt functions with CONFIG_PPC64.

For book3s/64 we keep them empty as it is done in assembly.

Also do the locked assert when switching task unless it is
book3s/64.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1cbf94e26e6d6e2e028fd687588a7e6622d454a6.1634627931.git.christophe.leroy@csgroup.eu

...

This commit is contained in:

Christophe Leroy 2021-10-19 09:29:26 +02:00 • committed by Michael Ellerman

parent 047a6fd401

commit 42e03bc524

4 changed files with 14 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

arch/powerpc/include/asm/book3s/64/kup.h

View file

2

arch/powerpc/include/asm/interrupt.h

View file

2

arch/powerpc/include/asm/kup.h

View file

6

arch/powerpc/kernel/process.c

View file