| Message ID | 526315E3.1020606@macke.de |
|---|---|
| State | New |
| Headers | show |
diff --git a/target-openrisc/sys_helper.c b/target-openrisc/sys_helper.c index 43fd93f..cad1b96 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)) {
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> --- target-openrisc/sys_helper.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) 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; -- 1.7.9.5