diff options
| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-10-13 17:29:09 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-10-13 17:29:09 +0000 |
| commit | 89fc88da4c8be493c978cf587fb5f4cc0114d23b (patch) | |
| tree | 32f8bf77ebea2be706923774458722382c47afa2 /target-mips | |
| parent | ea6fd42fa273591d2dc0ca7780e810582783a6ba (diff) | |
Fix off-by-one in address check.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3382 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/helper.c | 19 |
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 { |