commit d46272c774a94a8b2f0849703070dbcd93057f50
author Jan Kiszka <jan.kiszka@siemens.com> Mon Dec 14 12:26:27 2009 +0100
committer Anthony Liguori <aliguori@us.ibm.com> Fri Dec 18 11:26:25 2009 -0600
tree 0c5c26203c52e445631ca3b421d605437d43038b
parent 31827373f03b0ff1550d45ddef0ca1305a2ae70d

target-i386: Fix evaluation of DR7 register

hw_breakpoint_type and hw_breakpoint_len used the wrong index multiplier
to extract type and len.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

target-i386/cpu.h

diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index afb4da5..f3834b3 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -835,12 +835,12 @@
 
 static inline int hw_breakpoint_type(unsigned long dr7, int index)
 {
-    return (dr7 >> (DR7_TYPE_SHIFT + (index * 2))) & 3;
+    return (dr7 >> (DR7_TYPE_SHIFT + (index * 4))) & 3;
 }
 
 static inline int hw_breakpoint_len(unsigned long dr7, int index)
 {
-    int len = ((dr7 >> (DR7_LEN_SHIFT + (index * 2))) & 3);
+    int len = ((dr7 >> (DR7_LEN_SHIFT + (index * 4))) & 3);
     return (len == 2) ? 8 : len + 1;
 }