diff options
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index b6f1b21cb9..a0e57cdbce 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -3842,13 +3842,8 @@ static int get_phys_addr_lpae(CPUARMState *env, target_ulong address, page_size = (1 << ((granule_sz * (4 - level)) + 3)); descaddr |= (address & (page_size - 1)); /* Extract attributes from the descriptor and merge with table attrs */ - if (arm_feature(env, ARM_FEATURE_V8)) { - attrs = extract64(descriptor, 2, 10) - | (extract64(descriptor, 53, 11) << 10); - } else { - attrs = extract64(descriptor, 2, 10) - | (extract64(descriptor, 52, 12) << 10); - } + attrs = extract64(descriptor, 2, 10) + | (extract64(descriptor, 52, 12) << 10); attrs |= extract32(tableattrs, 0, 2) << 11; /* XN, PXN */ attrs |= extract32(tableattrs, 3, 1) << 5; /* APTable[1] => AP[2] */ /* The sense of AP[1] vs APTable[0] is reversed, as APTable[0] == 1 @@ -3874,8 +3869,12 @@ static int get_phys_addr_lpae(CPUARMState *env, target_ulong address, goto do_fault; } *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; - if (attrs & (1 << 12) || (!is_user && (attrs & (1 << 11)))) { - /* XN or PXN */ + if ((arm_feature(env, ARM_FEATURE_V8) && is_user && (attrs & (1 << 12))) || + (!arm_feature(env, ARM_FEATURE_V8) && (attrs & (1 << 12))) || + (!is_user && (attrs & (1 << 11)))) { + /* XN/UXN or PXN. Since we only implement EL0/EL1 we unconditionally + * treat XN/UXN as UXN for v8. + */ if (access_type == 2) { goto do_fault; } |