diff options
Diffstat (limited to 'softmmu/physmem.c')
| -rw-r--r-- | softmmu/physmem.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/softmmu/physmem.c b/softmmu/physmem.c index fb16be57a6..dc3c3e5f2e 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -669,7 +669,7 @@ void tcg_iommu_init_notifier_list(CPUState *cpu) /* Called from RCU critical section */ MemoryRegionSection * -address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr, +address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr orig_addr, hwaddr *xlat, hwaddr *plen, MemTxAttrs attrs, int *prot) { @@ -678,6 +678,7 @@ address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr, IOMMUMemoryRegionClass *imrc; IOMMUTLBEntry iotlb; int iommu_idx; + hwaddr addr = orig_addr; AddressSpaceDispatch *d = qatomic_rcu_read(&cpu->cpu_ases[asidx].memory_dispatch); @@ -722,6 +723,16 @@ address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr, return section; translate_fail: + /* + * We should be given a page-aligned address -- certainly + * tlb_set_page_with_attrs() does so. The page offset of xlat + * is used to index sections[], and PHYS_SECTION_UNASSIGNED = 0. + * The page portion of xlat will be logged by memory_region_access_valid() + * when this memory access is rejected, so use the original untranslated + * physical address. + */ + assert((orig_addr & ~TARGET_PAGE_MASK) == 0); + *xlat = orig_addr; return &d->map.sections[PHYS_SECTION_UNASSIGNED]; } |