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authorths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-13 17:29:09 +0000
committerths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-13 17:29:09 +0000
commit89fc88da4c8be493c978cf587fb5f4cc0114d23b (patch)
tree32f8bf77ebea2be706923774458722382c47afa2
parentea6fd42fa273591d2dc0ca7780e810582783a6ba (diff)
Fix off-by-one in address check.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3382 c046a42c-6fe2-441c-8c8c-71466251a162
-rw-r--r--target-mips/helper.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/target-mips/helper.c b/target-mips/helper.c
index 9c72481c2a..a881876ff2 100644
--- a/target-mips/helper.c
+++ b/target-mips/helper.c
@@ -131,18 +131,14 @@ static int get_physical_address (CPUState *env, target_ulong *physical,
ret = env->tlb->map_address(env, physical, prot, address, rw, access_type);
}
#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
-/*
- XXX: Assuming :
- - PABITS = 36 (correct for MIPS64R1)
-*/
- } else if (address < 0x3FFFFFFFFFFFFFFFULL) {
+ } else if (address < 0x4000000000000000ULL) {
/* xuseg */
if (UX && address < (0x3FFFFFFFFFFFFFFFULL & env->SEGMask)) {
ret = env->tlb->map_address(env, physical, prot, address, rw, access_type);
} else {
ret = TLBRET_BADADDR;
}
- } else if (address < 0x7FFFFFFFFFFFFFFFULL) {
+ } else if (address < 0x8000000000000000ULL) {
/* xsseg */
if ((supervisor_mode || kernel_mode) &&
SX && address < (0x7FFFFFFFFFFFFFFFULL & env->SEGMask)) {
@@ -150,16 +146,17 @@ static int get_physical_address (CPUState *env, target_ulong *physical,
} else {
ret = TLBRET_BADADDR;
}
- } else if (address < 0xBFFFFFFFFFFFFFFFULL) {
+ } else if (address < 0xC000000000000000ULL) {
/* xkphys */
+ /* XXX: Assumes PABITS = 36 (correct for MIPS64R1) */
if (kernel_mode && KX &&
- (address & 0x07FFFFFFFFFFFFFFULL) < 0X0000000FFFFFFFFFULL) {
- *physical = address & 0X0000000FFFFFFFFFULL;
+ (address & 0x07FFFFFFFFFFFFFFULL) < 0x0000000FFFFFFFFFULL) {
+ *physical = address & 0x0000000FFFFFFFFFULL;
*prot = PAGE_READ | PAGE_WRITE;
} else {
ret = TLBRET_BADADDR;
}
- } else if (address < 0xFFFFFFFF7FFFFFFFULL) {
+ } else if (address < 0xFFFFFFFF80000000ULL) {
/* xkseg */
if (kernel_mode && KX &&
address < (0xFFFFFFFF7FFFFFFFULL & env->SEGMask)) {
@@ -185,7 +182,7 @@ static int get_physical_address (CPUState *env, target_ulong *physical,
ret = TLBRET_BADADDR;
}
} else if (address < (int32_t)0xE0000000UL) {
- /* sseg */
+ /* sseg (kseg2) */
if (supervisor_mode || kernel_mode) {
ret = env->tlb->map_address(env, physical, prot, address, rw, access_type);
} else {