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d="scan'208";a="107897684" From: Zhao Liu To: Paolo Bonzini , Manos Pitsidianakis , Junjie Mao , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson , Peter Maydell , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= Cc: qemu-devel@nongnu.org, qemu-rust@nongnu.org, Zhao Liu Subject: [PATCH 05/10] rust: add bindings for memattrs Date: Sat, 25 Jan 2025 20:51:32 +0800 Message-Id: <20250125125137.1223277-6-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250125125137.1223277-1-zhao1.liu@intel.com> References: <20250125125137.1223277-1-zhao1.liu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=198.175.65.18; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -73 X-Spam_score: -7.4 X-Spam_bar: ------- X-Spam_report: (-7.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.996, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1737808546178019100 Content-Type: text/plain; charset="utf-8" The MemTxAttrs structure contains bitfield members, and bindgen is unable to generate an equivalent macro definition for MEMTXATTRS_UNSPECIFIED. Therefore, manually define a global constant variable MEMTXATTRS_UNSPECIFIED to support calls from Rust code. Signed-off-by: Zhao Liu --- Changes since RFC: * With a boolean type unspecified field, no need to add once_cell. * Merge memattrs binding to memory.rs. --- rust/qemu-api/src/memory.rs | 16 ++++++++++++++-- rust/qemu-api/src/zeroable.rs | 1 + rust/wrapper.h | 1 + 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/rust/qemu-api/src/memory.rs b/rust/qemu-api/src/memory.rs index 963d689c27d4..fff92508c68f 100644 --- a/rust/qemu-api/src/memory.rs +++ b/rust/qemu-api/src/memory.rs @@ -2,7 +2,7 @@ // Author(s): Paolo Bonzini // SPDX-License-Identifier: GPL-2.0-or-later =20 -//! Bindings for `MemoryRegion` and `MemoryRegionOps` +//! Bindings for `MemoryRegion`, `MemoryRegionOps` and `MemTxAttrs` =20 use std::{ ffi::{CStr, CString}, @@ -11,7 +11,7 @@ ptr::addr_of, }; =20 -pub use bindings::hwaddr; +pub use bindings::{hwaddr, MemTxAttrs}; =20 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 memary +/// 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 =3D MemTxAttrs { + unspecified: true, + ..Zeroable::ZERO +}; diff --git a/rust/qemu-api/src/zeroable.rs b/rust/qemu-api/src/zeroable.rs index 75742b50d4e3..9f009606b1ab 100644 --- a/rust/qemu-api/src/zeroable.rs +++ b/rust/qemu-api/src/zeroable.rs @@ -101,3 +101,4 @@ fn default() -> Self { 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 a9bc67af0d5f..54839ce0f510 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" --=20 2.34.1