commit 91242fd1a3eb96e4efe43bdf96c2fcec97fdf4ff
author Alexey Kardashevskiy <aik@ozlabs.ru> Fri Mar 17 19:31:38 2017 +1100
committer Paul Mackerras <paulus@ozlabs.org> Thu Apr 20 11:37:33 2017 +1000
tree 33ee98d9cce154ae4601e2216e257ed5e786cf15
parent 6f63e81bda98cbb549b01faf978884692ded438d

KVM: PPC: Add MMIO emulation for stdx (store doubleword indexed)

This adds missing stdx emulation for emulated MMIO accesses by KVM
guests.  This allows the Mellanox mlx5_core driver from recent kernels
to work when MMIO emulation is enforced by userspace.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

arch/powerpc/include/asm/ppc-opcode.h

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 1e37c3c..94e7df2 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -94,6 +94,7 @@
 #define OP_31_XOP_TRAP_64   68
 #define OP_31_XOP_DCBF      86
 #define OP_31_XOP_LBZX      87
+#define OP_31_XOP_STDX      149
 #define OP_31_XOP_STWX      151
 #define OP_31_XOP_STBX      215
 #define OP_31_XOP_LBZUX     119