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correct LIMIT management in decode_8_PD()

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Laurent Vivier
2004-02-17 21:30:09 +00:00
parent 15cbea56f8
commit e2a053b1ac
1 changed files with 9 additions and 0 deletions
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9
second/MMU.c
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@@ -136,6 +136,7 @@ static int decode_8_PD(unsigned long *pageBase, unsigned long *pageMask,
int TIA; int TIA;
unsigned long root; unsigned long root;
int index; int index;
unsigned long min, max;
TRACE("PD: %08lx%08lx ", PD0, PD1); TRACE("PD: %08lx%08lx ", PD0, PD1);
@@ -163,6 +164,10 @@ static int decode_8_PD(unsigned long *pageBase, unsigned long *pageMask,
root = GET_TD_LF_NEXT(PD0, PD1); root = GET_TD_LF_NEXT(PD0, PD1);
TRACE("4-BYTE TIA: %d index: %d\n", TIA, index); TRACE("4-BYTE TIA: %d index: %d\n", TIA, index);
GET_TD_LF_LIMIT(PD0, PD1, max, min);
if ( (index < min) || (index > max) )
return -1;
return decode_4_PD( pageBase, pageMask, attr, return decode_4_PD( pageBase, pageMask, attr,
logicalAddr << TIA, TI << 4, logicalAddr << TIA, TI << 4,
read_phys(root + index * 4)); read_phys(root + index * 4));
@@ -174,6 +179,10 @@ static int decode_8_PD(unsigned long *pageBase, unsigned long *pageMask,
root = GET_TD_LF_NEXT(PD0, PD1); root = GET_TD_LF_NEXT(PD0, PD1);
TRACE("8-BYTE TIA: %d index: %d\n", TIA, index); TRACE("8-BYTE TIA: %d index: %d\n", TIA, index);
GET_TD_LF_LIMIT(PD0, PD1, max, min);
if ( (index < min) || (index > max) )
return -1;
return decode_8_PD( pageBase, pageMask, attr, return decode_8_PD( pageBase, pageMask, attr,
logicalAddr << TIA, TI << 4, logicalAddr << TIA, TI << 4,
read_phys(root + index * 8), read_phys(root + index * 8),