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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-30 12:38:58 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-05-03 01:20:27 +1000 |
| commit | f97dec21a306967edbc49ce46f3ecefa3cd16907 (patch) | |
| tree | 71926e433d43add06480dcdd7acbd4f1e4bc6473 /arch/powerpc/kernel/head_40x.S | |
| parent | ef4291243f51d0a69899ee2025de09578c0fcba8 (diff) | |
| download | linux-f97dec21a306967edbc49ce46f3ecefa3cd16907.tar.gz linux-f97dec21a306967edbc49ce46f3ecefa3cd16907.tar.bz2 linux-f97dec21a306967edbc49ce46f3ecefa3cd16907.zip | |
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.S | 2 |
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) |