diff --git a/docs/memory.txt b/docs/memory.txt
index 3fc1683d88..5bbee8e85d 100644
--- a/docs/memory.txt
+++ b/docs/memory.txt
@@ -7,7 +7,7 @@ machine.  It attempts to allow modelling of:
  - ordinary RAM
  - memory-mapped I/O (MMIO)
  - memory controllers that can dynamically reroute physical memory regions
-  to different destinations
+   to different destinations
 
 The memory model provides support for
 
@@ -121,7 +121,7 @@ pci (0-2^32-1)
 
 ram: ram@0x00000000-0xffffffff
 
-The is a (simplified) PC memory map. The 4GB RAM block is mapped into the
+This is a (simplified) PC memory map. The 4GB RAM block is mapped into the
 system address space via two aliases: "lomem" is a 1:1 mapping of the first
 3.5GB; "himem" maps the last 0.5GB at address 4GB.  This leaves 0.5GB for the
 so-called PCI hole, that allows a 32-bit PCI bus to exist in a system with
@@ -164,7 +164,7 @@ various constraints can be supplied to control how these callbacks are called:
  - .impl.min_access_size, .impl.max_access_size define the access sizes
    (in bytes) supported by the *implementation*; other access sizes will be
    emulated using the ones available.  For example a 4-byte write will be
-   emulated using four 1-byte write, if .impl.max_access_size = 1.
+   emulated using four 1-byte writes, if .impl.max_access_size = 1.
  - .impl.valid specifies that the *implementation* only supports unaligned
    accesses; unaligned accesses will be emulated by two aligned accesses.
  - .old_portio and .old_mmio can be used to ease porting from code using
diff --git a/memory.h b/memory.h
index 53bf261792..beae1274d5 100644
--- a/memory.h
+++ b/memory.h
@@ -149,7 +149,7 @@ struct MemoryRegionPortio {
 /**
  * memory_region_init: Initialize a memory region
  *
- * The region typically acts as a container for other memory regions.  Us
+ * The region typically acts as a container for other memory regions.  Use
  * memory_region_add_subregion() to add subregions.
  *
  * @mr: the #MemoryRegion to be initialized
@@ -162,7 +162,7 @@ void memory_region_init(MemoryRegion *mr,
 /**
  * memory_region_init_io: Initialize an I/O memory region.
  *
- * Accesses into the region will be cause the callbacks in @ops to be called.
+ * Accesses into the region will cause the callbacks in @ops to be called.
  * if @size is nonzero, subregions will be clipped to @size.
  *
  * @mr: the #MemoryRegion to be initialized.
@@ -180,7 +180,7 @@ void memory_region_init_io(MemoryRegion *mr,
 
 /**
  * memory_region_init_ram:  Initialize RAM memory region.  Accesses into the
- *                          region will be modify memory directly.
+ *                          region will modify memory directly.
  *
  * @mr: the #MemoryRegion to be initialized.
  * @dev: a device associated with the region; may be %NULL.
@@ -196,7 +196,7 @@ void memory_region_init_ram(MemoryRegion *mr,
 
 /**
  * memory_region_init_ram:  Initialize RAM memory region from a user-provided.
- *                          pointer.  Accesses into the region will be modify
+ *                          pointer.  Accesses into the region will modify
  *                          memory directly.
  *
  * @mr: the #MemoryRegion to be initialized.
@@ -250,7 +250,7 @@ void memory_region_init_rom_device(MemoryRegion *mr,
                                    uint64_t size);
 
 /**
- * memory_region_destroy: Destroy a memory region and relaim all resources.
+ * memory_region_destroy: Destroy a memory region and reclaim all resources.
  *
  * @mr: the region to be destroyed.  May not currently be a subregion
  *      (see memory_region_add_subregion()) or referenced in an alias
@@ -417,7 +417,7 @@ void memory_region_clear_coalescing(MemoryRegion *mr);
  *
  * Marks a word in an IO region (initialized with memory_region_init_io())
  * as a trigger for an eventfd event.  The I/O callback will not be called.
- * The caller must be prepared to handle failure (hat is, take the required
+ * The caller must be prepared to handle failure (that is, take the required
  * action if the callback _is_ called).
  *
  * @mr: the memory region being updated.
@@ -435,10 +435,10 @@ void memory_region_add_eventfd(MemoryRegion *mr,
                                int fd);
 
 /**
- * memory_region_del_eventfd: Cancel and eventfd.
+ * memory_region_del_eventfd: Cancel an eventfd.
  *
- * Cancels an eventfd trigger request by a previous memory_region_add_eventfd()
- * call.
+ * Cancels an eventfd trigger requested by a previous
+ * memory_region_add_eventfd() call.
  *
  * @mr: the memory region being updated.
  * @addr: the address within @mr that is to be monitored
@@ -454,9 +454,9 @@ void memory_region_del_eventfd(MemoryRegion *mr,
                                uint64_t data,
                                int fd);
 /**
- * memory_region_add_subregion: Add a sub-region to a container.
+ * memory_region_add_subregion: Add a subregion to a container.
  *
- * Adds a sub-region at @offset.  The sub-region may not overlap with other
+ * Adds a subregion at @offset.  The subregion may not overlap with other
  * subregions (except for those explicitly marked as overlapping).  A region
  * may only be added once as a subregion (unless removed with
  * memory_region_del_subregion()); use memory_region_init_alias() if you
@@ -471,9 +471,9 @@ void memory_region_add_subregion(MemoryRegion *mr,
                                  target_phys_addr_t offset,
                                  MemoryRegion *subregion);
 /**
- * memory_region_add_subregion: Add a sub-region to a container, with overlap.
+ * memory_region_add_subregion: Add a subregion to a container, with overlap.
  *
- * Adds a sub-region at @offset.  The sub-region may overlap with other
+ * Adds a subregion at @offset.  The subregion may overlap with other
  * subregions.  Conflicts are resolved by having a higher @priority hide a
  * lower @priority. Subregions without priority are taken as @priority 0.
  * A region may only be added once as a subregion (unless removed with
@@ -501,11 +501,17 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr,
 void memory_region_del_subregion(MemoryRegion *mr,
                                  MemoryRegion *subregion);
 
-/* Start a transaction; changes will be accumulated and made visible only
- * when the transaction ends.
+/**
+ * memory_region_transaction_begin: Start a transaction.
+ *
+ * During a transaction, changes will be accumulated and made visible
+ * only when the transaction ends (is commited).
  */
 void memory_region_transaction_begin(void);
-/* Commit a transaction and make changes visible to the guest.
+
+/**
+ * memory_region_transaction_commit: Commit a transaction and make changes
+ *                                   visible to the guest.
  */
 void memory_region_transaction_commit(void);