The entire valid transaction must fit within a single IOPMP entry. However, during IOMMU translation, the transaction size is not available. This structure defines the transaction information required by the IOPMP.
Signed-off-by: Ethan Chen <etha...@andestech.com> --- include/hw/misc/riscv_iopmp_txn_info.h | 38 ++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 include/hw/misc/riscv_iopmp_txn_info.h diff --git a/include/hw/misc/riscv_iopmp_txn_info.h b/include/hw/misc/riscv_iopmp_txn_info.h new file mode 100644 index 0000000000..98bd26b68b --- /dev/null +++ b/include/hw/misc/riscv_iopmp_txn_info.h @@ -0,0 +1,38 @@ +/* + * QEMU RISC-V IOPMP transaction information + * + * The transaction information structure provides the complete transaction + * length to the IOPMP device + * + * Copyright (c) 2023-2025 Andes Tech. Corp. + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef RISCV_IOPMP_TXN_INFO_H +#define RISCV_IOPMP_TXN_INFO_H + +typedef struct { + /* The id of requestor */ + uint32_t rrid:16; + /* The start address of transaction */ + uint64_t start_addr; + /* The end address of transaction */ + uint64_t end_addr; + /* The stage of cascading IOPMP */ + uint32_t stage; +} riscv_iopmp_txn_info; + +#endif -- 2.34.1
