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rust/timer/hpet: define hpet_fw_cfg

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Define HPETFwEntry structure with the same memory layout as
hpet_fw_entry in C.

Further, define the global hpet_cfg variable in Rust which is the
same as the C version. This hpet_cfg variable in Rust will replace
the C version one and allows both Rust code and C code to access it.

The Rust version of hpet_cfg is self-contained, avoiding unsafe
access to C code.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250210030051.2562726-8-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Zhao Liu 2025-02-10 11:00:48 +08:00 • committed by Paolo Bonzini
parent eadb83f9a3
commit 0534248a6b
9 changed files with 132 additions and 2 deletions
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10
rust/hw/timer/hpet/src/lib.rs Normal file
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// Copyright (C) 2024 Intel Corporation.
// Author(s): Zhao Liu <zhai1.liu@intel.com>
// SPDX-License-Identifier: GPL-2.0-or-later
//! # HPET QEMU Device Model
//!
//! This library implements a device model for the IA-PC HPET (High
//! Precision Event Timers) device in QEMU.
pub mod fw_cfg;