axhvc

AxVisor HyperCall definitions for guest-hypervisor communication.

Overview

This crate provides the hypercall interface for AxVisor, a type-1 hypervisor based on ArceOS. It defines the hypercall codes and result types used for communication between guest VMs and the hypervisor.

Features

no_std compatible - suitable for bare-metal and embedded environments
Defines all supported hypercall operations
Provides type-safe hypercall codes with numeric enum conversion
Cross-platform support (x86_64, RISC-V, AArch64)

Supported Hypercalls

Code	Name	Description
0	`HypervisorDisable`	Disable the hypervisor
1	`HyperVisorPrepareDisable`	Prepare to disable the hypervisor
2	`HyperVisorDebug`	Debug hypercall (development only)
3	`HIVCPublishChannel`	Publish an IVC shared memory channel
4	`HIVCSubscribChannel`	Subscribe to an IVC shared memory channel
5	`HIVCUnPublishChannel`	Unpublish an IVC shared memory channel
6	`HIVCUnSubscribChannel`	Unsubscribe from an IVC shared memory channel

Usage

Add this to your Cargo.toml:

[dependencies]
axhvc = "0.1"

Example

use axhvc::{HyperCallCode, HyperCallResult};

fn handle_hypercall(code: HyperCallCode) -> HyperCallResult {
    match code {
        HyperCallCode::HypervisorDisable => {
            // Handle hypervisor disable request
            Ok(0)
        }
        HyperCallCode::HIVCPublishChannel => {
            // Handle IVC channel publish request
            Ok(0)
        }
        _ => Err(axerrno::AxError::Unsupported),
    }
}

License

Axhvc is licensed under the Apache License, Version 2.0. See the LICENSE file for details.