diff options
| author | Sebastian Macke <sebastian@macke.de> | 2013-10-22 02:12:42 +0200 |
|---|---|---|
| committer | Jia Liu <proljc@gmail.com> | 2013-11-20 21:47:17 +0800 |
| commit | 93147a180c10b97bf9575a87e01c9a1c93e6c9ce (patch) | |
| tree | e93cc5d14e881ccee682650ce23e2d08b2f69161 /target-openrisc | |
| parent | d51552176a2ab5e80a211514aa1339fe2575ec2a (diff) | |
target-openrisc: Correct memory bounds checking for the tlb buffers
The mtspr and mfspr routines didn't check for the correct memory boundaries.
This fixes a segmentation fault while booting Linux.
Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
Diffstat (limited to 'target-openrisc')
| -rw-r--r-- | target-openrisc/sys_helper.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/target-openrisc/sys_helper.c b/target-openrisc/sys_helper.c index f1165885d9..be06c4565b 100644 --- a/target-openrisc/sys_helper.c +++ b/target-openrisc/sys_helper.c @@ -81,7 +81,7 @@ void HELPER(mtspr)(CPUOpenRISCState *env, case TO_SPR(0, 64): /* ESR */ env->esr = rb; break; - case TO_SPR(1, 512) ... TO_SPR(1, 639): /* DTLBW0MR 0-127 */ + case TO_SPR(1, 512) ... TO_SPR(1, 512+DTLB_SIZE-1): /* DTLBW0MR 0-127 */ idx = spr - TO_SPR(1, 512); if (!(rb & 1)) { tlb_flush_page(env, env->tlb->dtlb[0][idx].mr & TARGET_PAGE_MASK); @@ -89,7 +89,7 @@ void HELPER(mtspr)(CPUOpenRISCState *env, env->tlb->dtlb[0][idx].mr = rb; break; - case TO_SPR(1, 640) ... TO_SPR(1, 767): /* DTLBW0TR 0-127 */ + case TO_SPR(1, 640) ... TO_SPR(1, 640+DTLB_SIZE-1): /* DTLBW0TR 0-127 */ idx = spr - TO_SPR(1, 640); env->tlb->dtlb[0][idx].tr = rb; break; @@ -100,7 +100,7 @@ void HELPER(mtspr)(CPUOpenRISCState *env, case TO_SPR(1, 1280) ... TO_SPR(1, 1407): /* DTLBW3MR 0-127 */ case TO_SPR(1, 1408) ... TO_SPR(1, 1535): /* DTLBW3TR 0-127 */ break; - case TO_SPR(2, 512) ... TO_SPR(2, 639): /* ITLBW0MR 0-127 */ + case TO_SPR(2, 512) ... TO_SPR(2, 512+ITLB_SIZE-1): /* ITLBW0MR 0-127 */ idx = spr - TO_SPR(2, 512); if (!(rb & 1)) { tlb_flush_page(env, env->tlb->itlb[0][idx].mr & TARGET_PAGE_MASK); @@ -108,7 +108,7 @@ void HELPER(mtspr)(CPUOpenRISCState *env, env->tlb->itlb[0][idx].mr = rb; break; - case TO_SPR(2, 640) ... TO_SPR(2, 767): /* ITLBW0TR 0-127 */ + case TO_SPR(2, 640) ... TO_SPR(2, 640+ITLB_SIZE-1): /* ITLBW0TR 0-127 */ idx = spr - TO_SPR(2, 640); env->tlb->itlb[0][idx].tr = rb; break; @@ -212,11 +212,11 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, case TO_SPR(0, 64): /* ESR */ return env->esr; - case TO_SPR(1, 512) ... TO_SPR(1, 639): /* DTLBW0MR 0-127 */ + case TO_SPR(1, 512) ... TO_SPR(1, 512+DTLB_SIZE-1): /* DTLBW0MR 0-127 */ idx = spr - TO_SPR(1, 512); return env->tlb->dtlb[0][idx].mr; - case TO_SPR(1, 640) ... TO_SPR(1, 767): /* DTLBW0TR 0-127 */ + case TO_SPR(1, 640) ... TO_SPR(1, 640+DTLB_SIZE-1): /* DTLBW0TR 0-127 */ idx = spr - TO_SPR(1, 640); return env->tlb->dtlb[0][idx].tr; @@ -228,11 +228,11 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, case TO_SPR(1, 1408) ... TO_SPR(1, 1535): /* DTLBW3TR 0-127 */ break; - case TO_SPR(2, 512) ... TO_SPR(2, 639): /* ITLBW0MR 0-127 */ + case TO_SPR(2, 512) ... TO_SPR(2, 512+ITLB_SIZE-1): /* ITLBW0MR 0-127 */ idx = spr - TO_SPR(2, 512); return env->tlb->itlb[0][idx].mr; - case TO_SPR(2, 640) ... TO_SPR(2, 767): /* ITLBW0TR 0-127 */ + case TO_SPR(2, 640) ... TO_SPR(2, 640+ITLB_SIZE-1): /* ITLBW0TR 0-127 */ idx = spr - TO_SPR(2, 640); return env->tlb->itlb[0][idx].tr; |