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powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0
authorChristophe Leroy <christophe.leroy@c-s.fr>
Sat, 21 Dec 2019 08:32:25 +0000 (08:32 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Sun, 26 Jan 2020 11:15:09 +0000 (22:15 +1100)
commit5ae8fabc644632d31babbc7162aa876c79aaadb3
treee32642fd7441628cdfcca062626b570be2f12757tree | snapshot
parent1ca9db5b6556c38aacac4c50a617aa3f7efbb306commit | diff
powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0

In order to simplify  VMAP stack implementation, move
MSR_PR test into EXCEPTION_PROLOG_0.

This requires to not modify cr0 between EXCEPTION_PROLOG_0
and EXCEPTION_PROLOG_1.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5c8b5bba692b92654dbd363a229a1ba91db725bb.1576916812.git.christophe.leroy@c-s.fr
arch/powerpc/kernel/head_32.h diff | blob | history
arch/powerpc/kernel/head_8xx.S diff | blob | history
Domain: System / Kernel;