Merge remote-tracking branch 'bonzini/iommu-for-anthony' into staging

# By Paolo Bonzini (2) and others
# Via Paolo Bonzini
* bonzini/iommu-for-anthony:
  exec: fix incorrect assumptions in memory_access_size
  memory: Return -1 again on reads from unsigned regions
  memory: actually set the owner
  exec.c: Pass correct pointer type to qemu_ram_ptr_length

Message-id: 1374264478-23913-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 9 deletions

diff --git a/exec.c b/exec.c
index c99a8839c5..c8658c6f9d 100644
--- a/exec.c
+++ b/exec.c
@@ -1379,7 +1379,7 @@ static void *qemu_safe_ram_ptr(ram_addr_t addr)
 
 /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr
  * but takes a size argument */
-static void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size)
+static void *qemu_ram_ptr_length(ram_addr_t addr, hwaddr *size)
 {
     if (*size == 0) {
         return NULL;
@@ -1898,14 +1898,10 @@ static inline bool memory_access_is_direct(MemoryRegion *mr, bool is_write)
 
 static int memory_access_size(MemoryRegion *mr, unsigned l, hwaddr addr)
 {
-    unsigned access_size_min = mr->ops->impl.min_access_size;
-    unsigned access_size_max = mr->ops->impl.max_access_size;
+    unsigned access_size_max = mr->ops->valid.max_access_size;
 
     /* Regions are assumed to support 1-4 byte accesses unless
        otherwise specified.  */
-    if (access_size_min == 0) {
-        access_size_min = 1;
-    }
     if (access_size_max == 0) {
         access_size_max = 4;
     }
@@ -1922,9 +1918,6 @@ static int memory_access_size(MemoryRegion *mr, unsigned l, hwaddr addr)
     if (l > access_size_max) {
         l = access_size_max;
     }
-    /* ??? The users of this function are wrong, not supporting minimums larger
-       than the remaining length.  C.f. memory.c:access_with_adjusted_size.  */
-    assert(l >= access_size_min);
 
     return l;
 }