1 files changed, 38 insertions, 0 deletions
diff --git a/devices/src/irqchip/x86_64.rs b/devices/src/irqchip/x86_64.rs
new file mode 100644
index 0000000..4b50427
--- /dev/null
+++ b/devices/src/irqchip/x86_64.rs
@@ -0,0 +1,38 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+use crate::Bus;
+use hypervisor::{IoapicState, LapicState, PicSelect, PicState, PitState, VcpuX86_64};
+use sys_util::Result;
+
+use crate::IrqChip;
+
+pub trait IrqChipX86_64<V: VcpuX86_64>: IrqChip<V> {
+    /// Get the current state of the PIC
+    fn get_pic_state(&self, select: PicSelect) -> Result<PicState>;
+
+    /// Set the current state of the PIC
+    fn set_pic_state(&mut self, select: PicSelect, state: &PicState) -> Result<()>;
+
+    /// Get the current state of the IOAPIC
+    fn get_ioapic_state(&self) -> Result<IoapicState>;
+
+    /// Set the current state of the IOAPIC
+    fn set_ioapic_state(&mut self, state: &IoapicState) -> Result<()>;
+
+    /// Get the current state of the specified VCPU's local APIC
+    fn get_lapic_state(&self, vcpu_id: usize) -> Result<LapicState>;
+
+    /// Set the current state of the specified VCPU's local APIC
+    fn set_lapic_state(&mut self, vcpu_id: usize, state: &LapicState) -> Result<()>;
+
+    /// Create a PIT (Programmable Interval Timer) for this VM.
+    fn create_pit(&mut self, io_bus: &mut Bus) -> Result<()>;
+
+    /// Retrieves the state of the PIT.
+    fn get_pit(&self) -> Result<PitState>;
+
+    /// Sets the state of the PIT.
+    fn set_pit(&mut self, state: &PitState) -> Result<()>;
+}