powerpc/32: enter syscall with MSR_EE inconditionaly set

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syscalls are expected to be entered with MSR_EE set. Lets
make it inconditional by forcing MSR_EE on syscalls.

This patch adds EXC_XFER_SYS for that.

Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[splited out from benh RFC patch]

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

...

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Christophe Leroy 2019-04-30 12:38:58 +00:00 • committed by Michael Ellerman

parent ef4291243f

commit f97dec21a3

7 changed files with 13 additions and 5 deletions

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2

arch/powerpc/kernel/head_32.S

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arch/powerpc/kernel/head_32.h

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arch/powerpc/kernel/head_40x.S

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arch/powerpc/kernel/head_44x.S

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arch/powerpc/kernel/head_8xx.S

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arch/powerpc/kernel/head_booke.h

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arch/powerpc/kernel/head_fsl_booke.S

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