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-rw-r--r--rust/qemu-api/src/memory.rs16
-rw-r--r--rust/qemu-api/src/zeroable.rs1
-rw-r--r--rust/wrapper.h1
3 files changed, 16 insertions, 2 deletions
diff --git a/rust/qemu-api/src/memory.rs b/rust/qemu-api/src/memory.rs
index 963d689c27..682951ab44 100644
--- a/rust/qemu-api/src/memory.rs
+++ b/rust/qemu-api/src/memory.rs
@@ -2,7 +2,7 @@
 // Author(s): Paolo Bonzini <pbonzini@redhat.com>
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-//! Bindings for `MemoryRegion` and `MemoryRegionOps`
+//! Bindings for `MemoryRegion`, `MemoryRegionOps` and `MemTxAttrs`
 
 use std::{
     ffi::{CStr, CString},
@@ -11,7 +11,7 @@ use std::{
     ptr::addr_of,
 };
 
-pub use bindings::hwaddr;
+pub use bindings::{hwaddr, MemTxAttrs};
 
 use crate::{
     bindings::{self, device_endian, memory_region_init_io},
@@ -189,3 +189,15 @@ unsafe impl ObjectType for MemoryRegion {
         unsafe { CStr::from_bytes_with_nul_unchecked(bindings::TYPE_MEMORY_REGION) };
 }
 qom_isa!(MemoryRegion: Object);
+
+/// A special `MemTxAttrs` constant, used to indicate that no memory
+/// attributes are specified.
+///
+/// Bus masters which don't specify any attributes will get this,
+/// which has all attribute bits clear except the topmost one
+/// (so that we can distinguish "all attributes deliberately clear"
+/// from "didn't specify" if necessary).
+pub const MEMTXATTRS_UNSPECIFIED: MemTxAttrs = MemTxAttrs {
+    unspecified: true,
+    ..Zeroable::ZERO
+};
diff --git a/rust/qemu-api/src/zeroable.rs b/rust/qemu-api/src/zeroable.rs
index 75742b50d4..9f009606b1 100644
--- a/rust/qemu-api/src/zeroable.rs
+++ b/rust/qemu-api/src/zeroable.rs
@@ -101,3 +101,4 @@ impl_zeroable!(crate::bindings::VMStateDescription);
 impl_zeroable!(crate::bindings::MemoryRegionOps__bindgen_ty_1);
 impl_zeroable!(crate::bindings::MemoryRegionOps__bindgen_ty_2);
 impl_zeroable!(crate::bindings::MemoryRegionOps);
+impl_zeroable!(crate::bindings::MemTxAttrs);
diff --git a/rust/wrapper.h b/rust/wrapper.h
index a9bc67af0d..54839ce0f5 100644
--- a/rust/wrapper.h
+++ b/rust/wrapper.h
@@ -62,3 +62,4 @@ typedef enum memory_order {
 #include "qapi/error.h"
 #include "migration/vmstate.h"
 #include "chardev/char-serial.h"
+#include "exec/memattrs.h"