Thread (37 messages) 37 messages, 3 authors, 2018-05-03
STALE2964d

[PATCH 04/11] KVM: PPC: fix incorrect element_size for stxsiwx in analyse_instr

From: <hidden>
Date: 2018-04-25 11:55:13
Also in: kvm
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

From: Simon Guo <redacted>

stwsiwx will place contents of word element 1 of VSR into word
storage of EA. So the element size of stwsiwx should be 4.

This patch correct the size from 8 to 4.

Signed-off-by: Simon Guo <redacted>
---
 arch/powerpc/lib/sstep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 34d68f1..151d484 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -2178,7 +2178,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 		case 140:	/* stxsiwx */
 			op->reg = rd | ((instr & 1) << 5);
 			op->type = MKOP(STORE_VSX, 0, 4);
-			op->element_size = 8;
+			op->element_size = 4;
 			break;
 
 		case 268:	/* lxvx */
-- 
1.8.3.1
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