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target-i386: Fix evaluation of DR7 register

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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>
This commit is contained in:
Jan Kiszka 2009-12-14 12:26:27 +01:00 committed by Anthony Liguori
parent 31827373f0
commit d46272c774
1 changed files with 2 additions and 2 deletions
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4
target-i386/cpu.h
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@ -835,12 +835,12 @@ static inline int hw_breakpoint_enabled(unsigned long dr7, int index)
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;
}