diff options
Diffstat (limited to 'hw/arm/smmu-common.c')
| -rw-r--r-- | hw/arm/smmu-common.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c index f58261bb81..4caedb4998 100644 --- a/hw/arm/smmu-common.c +++ b/hw/arm/smmu-common.c @@ -364,6 +364,17 @@ static int smmu_ptw_64_s1(SMMUTransCfg *cfg, pte_addr, pte, iova, gpa, block_size >> 20); } + + /* + * QEMU does not currently implement HTTU, so if AFFD and PTE.AF + * are 0 we take an Access flag fault. (5.4. Context Descriptor) + * An Access flag fault takes priority over a Permission fault. + */ + if (!PTE_AF(pte) && !cfg->affd) { + info->type = SMMU_PTW_ERR_ACCESS; + goto error; + } + ap = PTE_AP(pte); if (is_permission_fault(ap, perm)) { info->type = SMMU_PTW_ERR_PERMISSION; |