Make flatview_translate() take a MemTxAttrs argument

As part of plumbing MemTxAttrs down to the IOMMU translate method,
add MemTxAttrs as an argument to flatview_translate(); all its
callers now have attrs available.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180521140402.23318-11-peter.maydell@linaro.org

exec.c

@@ -618,7 +618,8 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
 
 /* Called from RCU critical section */
 MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat,
-                                 hwaddr *plen, bool is_write)
+                                 hwaddr *plen, bool is_write,
+                                 MemTxAttrs attrs)
 {
     MemoryRegion *mr;
     MemoryRegionSection section;
@@ -3152,7 +3153,7 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
         }
 
         l = len;
-        mr = flatview_translate(fv, addr, &addr1, &l, true);
+        mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
     }
 
     return result;
@@ -3168,7 +3169,7 @@ static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
     MemTxResult result = MEMTX_OK;
 
     l = len;
-    mr = flatview_translate(fv, addr, &addr1, &l, true);
+    mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
     result = flatview_write_continue(fv, addr, attrs, buf, len,
                                      addr1, l, mr);
 
@@ -3239,7 +3240,7 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
         }
 
         l = len;
-        mr = flatview_translate(fv, addr, &addr1, &l, false);
+        mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
     }
 
     return result;
@@ -3254,7 +3255,7 @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
     MemoryRegion *mr;
 
     l = len;
-    mr = flatview_translate(fv, addr, &addr1, &l, false);
+    mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
     return flatview_read_continue(fv, addr, attrs, buf, len,
                                   addr1, l, mr);
 }
@@ -3468,7 +3469,7 @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
 
     while (len > 0) {
         l = len;
-        mr = flatview_translate(fv, addr, &xlat, &l, is_write);
+        mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs);
         if (!memory_access_is_direct(mr, is_write)) {
             l = memory_access_size(mr, l, addr);
             if (!memory_region_access_valid(mr, xlat, l, is_write, attrs)) {
@@ -3516,7 +3517,7 @@ flatview_extend_translation(FlatView *fv, hwaddr addr,
 
         len = target_len;
         this_mr = flatview_translate(fv, addr, &xlat,
-                                                   &len, is_write);
+                                     &len, is_write, attrs);
         if (this_mr != mr || xlat != base + done) {
             return done;
         }
@@ -3549,7 +3550,7 @@ void *address_space_map(AddressSpace *as,
     l = len;
     rcu_read_lock();
     fv = address_space_to_flatview(as);
-    mr = flatview_translate(fv, addr, &xlat, &l, is_write);
+    mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs);
 
     if (!memory_access_is_direct(mr, is_write)) {
         if (atomic_xchg(&bounce.in_use, true)) {

include/exec/memory.h

@@ -1913,15 +1913,16 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
  */
 MemoryRegion *flatview_translate(FlatView *fv,
                                  hwaddr addr, hwaddr *xlat,
-                                 hwaddr *len, bool is_write);
+                                 hwaddr *len, bool is_write,
+                                 MemTxAttrs attrs);
 
 static inline MemoryRegion *address_space_translate(AddressSpace *as,
                                                     hwaddr addr, hwaddr *xlat,
                                                     hwaddr *len, bool is_write,
                                                     MemTxAttrs attrs)
 {
     return flatview_translate(address_space_to_flatview(as),
-                              addr, xlat, len, is_write);
+                              addr, xlat, len, is_write, attrs);
 }
 
 /* address_space_access_valid: check for validity of accessing an address
@@ -2030,7 +2031,7 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr,
             rcu_read_lock();
             fv = address_space_to_flatview(as);
             l = len;
-            mr = flatview_translate(fv, addr, &addr1, &l, false);
+            mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
             if (len == l && memory_access_is_direct(mr, false)) {
                 ptr = qemu_map_ram_ptr(mr->ram_block, addr1);
                 memcpy(buf, ptr, len);