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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-04-30 12:38:58 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2019-05-03 01:20:27 +1000
commitf97dec21a306967edbc49ce46f3ecefa3cd16907 (patch)
tree71926e433d43add06480dcdd7acbd4f1e4bc6473 /arch/powerpc/kernel/head_40x.S
parentef4291243f51d0a69899ee2025de09578c0fcba8 (diff)
downloadlinux-f97dec21a306967edbc49ce46f3ecefa3cd16907.tar.gz
powerpc/32: enter syscall with MSR_EE inconditionaly set
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>
Diffstat (limited to 'arch/powerpc/kernel/head_40x.S')
-rw-r--r--arch/powerpc/kernel/head_40x.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
index b3a2e55e1c15..3e1b8a85cc0d 100644
--- a/arch/powerpc/kernel/head_40x.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -350,7 +350,7 @@ _ENTRY(saved_ksp_limit)
/* 0x0C00 - System Call Exception */
START_EXCEPTION(0x0C00, SystemCall)
EXCEPTION_PROLOG
- EXC_XFER_EE_LITE(0xc00, DoSyscall)
+ EXC_XFER_SYS(0xc00, DoSyscall)
EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_EE)
EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_EE)