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Subject[PATCH 4.10 014/129] powerpc/mm: Fixup wrong LPCR_VRMASD value
Date
4.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

commit 4ab2537c4204b976e4ca350bbdc193b4649cad28 upstream.

In commit a4b349540a26af ("powerpc/mm: Cleanup LPCR defines") we updated
LPCR_VRMASD wrongly as below.

-#define LPCR_VRMASD (0x1ful << (63-16))
+#define LPCR_VRMASD_SH 47
+#define LPCR_VRMASD (ASM_CONST(1) << LPCR_VRMASD_SH)

We initialize the VRMA bits in LPCR to 0x00 in kvm. Hence using a
different mask value as above while updating lpcr should not have any
impact.

This patch updates it to the correct value.

Fixes: a4b349540a26 ("powerpc/mm: Cleanup LPCR defines")
Reported-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Jia He <hejianet@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/powerpc/include/asm/reg.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -338,7 +338,7 @@
#define LPCR_DPFD_SH 52
#define LPCR_DPFD (ASM_CONST(7) << LPCR_DPFD_SH)
#define LPCR_VRMASD_SH 47
-#define LPCR_VRMASD (ASM_CONST(1) << LPCR_VRMASD_SH)
+#define LPCR_VRMASD (ASM_CONST(0x1f) << LPCR_VRMASD_SH)
#define LPCR_VRMA_L ASM_CONST(0x0008000000000000)
#define LPCR_VRMA_LP0 ASM_CONST(0x0001000000000000)
#define LPCR_VRMA_LP1 ASM_CONST(0x0000800000000000)

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