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Автор SHA1 Сообщение Дата
Benjamin Gray 6657ecbcc3 powerpc/kasan: Disable KCOV in KASAN code 
[ Upstream commit ccb381e1af ]

As per the generic KASAN code in mm/kasan, disable KCOV with
KCOV_INSTRUMENT := n in the makefile.

This fixes a ppc64 boot hang when KCOV and KASAN are enabled.
kasan_early_init() gets called before a PACA is initialised, but the
KCOV hook expects a valid PACA.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230710044143.146840-1-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2023-08-26 14:23:26 +02:00
Christophe Leroy 7974c47326 powerpc/32s: Implement dedicated kasan_init_region() 
Implement a kasan_init_region() dedicated to book3s/32 that
allocates KASAN regions using BATs.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/709e821602b48a1d7c211a9b156da26db98c3e9d.1589866984.git.christophe.leroy@csgroup.eu
 2020-05-26 22:22:23 +10:00
Christophe Leroy a2feeb2c2e powerpc/8xx: Implement dedicated kasan_init_region() 
Implement a kasan_init_region() dedicated to 8xx that
allocates KASAN regions using huge pages.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d2d60202a8821dc81cffe6ff59cc13c15b7e4bb6.1589866984.git.christophe.leroy@csgroup.eu
 2020-05-26 22:22:23 +10:00
Christophe Leroy 305d600123 powerpc/kasan: add missing/lost Makefile 
For unknown reason (aka. mpe is a doofus), the new Makefile added via
the KASAN support patch didn't land into arch/powerpc/mm/kasan/

This patch restores it.

Fixes: 2edb16efc8 ("powerpc/32: Add KASAN support")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2019-05-06 20:21:34 +10:00