diff options
| author | Peter Xu <peterx@redhat.com> | 2017-07-17 17:02:30 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-08-02 00:13:25 +0300 |
| commit | 07f7b73398de3b60f28301a9af2a2338710105c7 (patch) | |
| tree | da60d1f473c3fbdd8606c2ff559a7a005c5704e1 /hw | |
| parent | 892721d91d9deb2affe4e61334b1dd1b43728f92 (diff) | |
intel_iommu: use access_flags for iotlb
It was cached by read/write separately. Let's merge them.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/intel_iommu.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index e0b0498385..a7bf87a19e 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -237,8 +237,7 @@ out: static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, uint16_t domain_id, hwaddr addr, uint64_t slpte, - bool read_flags, bool write_flags, - uint32_t level) + uint8_t access_flags, uint32_t level) { VTDIOTLBEntry *entry = g_malloc(sizeof(*entry)); uint64_t *key = g_malloc(sizeof(*key)); @@ -253,8 +252,7 @@ static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, entry->gfn = gfn; entry->domain_id = domain_id; entry->slpte = slpte; - entry->read_flags = read_flags; - entry->write_flags = write_flags; + entry->access_flags = access_flags; entry->mask = vtd_slpt_level_page_mask(level); *key = vtd_get_iotlb_key(gfn, source_id, level); g_hash_table_replace(s->iotlb, key, entry); @@ -1087,6 +1085,7 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, bool is_fpd_set = false; bool reads = true; bool writes = true; + uint8_t access_flags; VTDIOTLBEntry *iotlb_entry; /* @@ -1101,8 +1100,7 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->slpte, iotlb_entry->domain_id); slpte = iotlb_entry->slpte; - reads = iotlb_entry->read_flags; - writes = iotlb_entry->write_flags; + access_flags = iotlb_entry->access_flags; page_mask = iotlb_entry->mask; goto out; } @@ -1172,13 +1170,14 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, } page_mask = vtd_slpt_level_page_mask(level); + access_flags = IOMMU_ACCESS_FLAG(reads, writes); vtd_update_iotlb(s, source_id, VTD_CONTEXT_ENTRY_DID(ce.hi), addr, slpte, - reads, writes, level); + access_flags, level); out: entry->iova = addr & page_mask; entry->translated_addr = vtd_get_slpte_addr(slpte) & page_mask; entry->addr_mask = ~page_mask; - entry->perm = IOMMU_ACCESS_FLAG(reads, writes); + entry->perm = access_flags; return true; error: |