diff mbox series

[v5,07/18] hw/arm/smmu: Introduce CACHED_ENTRY_TO_ADDR

Message ID 20240715084519.1189624-8-smostafa@google.com (mailing list archive)
State New, archived
Headers show
Series SMMUv3 nested translation support | expand

Commit Message

Mostafa Saleh July 15, 2024, 8:45 a.m. UTC 
Soon, smmuv3_do_translate() will be used to translate the CD and the
TTBx, instead of re-writting the same logic to convert the returned
cached entry to an address, add a new macro CACHED_ENTRY_TO_ADDR.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
---
 hw/arm/smmuv3.c              | 3 +--
 include/hw/arm/smmu-common.h | 3 +++
 2 files changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 11cd12e32f..3f2dfada44 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -951,8 +951,7 @@  epilogue:
     switch (status) {
     case SMMU_TRANS_SUCCESS:
         entry.perm = cached_entry->entry.perm;
-        entry.translated_addr = cached_entry->entry.translated_addr +
-                                    (addr & cached_entry->entry.addr_mask);
+        entry.translated_addr = CACHED_ENTRY_TO_ADDR(cached_entry, addr);
         entry.addr_mask = cached_entry->entry.addr_mask;
         trace_smmuv3_translate_success(mr->parent_obj.name, sid, addr,
                                        entry.translated_addr, entry.perm,
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index 96eb017e50..eecbebaaac 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -37,6 +37,9 @@ 
 #define VMSA_IDXMSK(isz, strd, lvl)         ((1ULL << \
                                              VMSA_BIT_LVL(isz, strd, lvl)) - 1)
 
+#define CACHED_ENTRY_TO_ADDR(ent, addr)      ((ent)->entry.translated_addr + \
+                                             ((addr) & (ent)->entry.addr_mask))
+
 /*
  * Page table walk error types
  */