hyperlight_guest/
host_error.rs

1/*
2Copyright 2024 The Hyperlight Authors.
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8    http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17use core::ffi::c_void;
18use core::slice::from_raw_parts;
19
20use hyperlight_common::flatbuffer_wrappers::guest_error::{ErrorCode, GuestError};
21
22use crate::P_PEB;
23
24pub(crate) fn check_for_host_error() {
25    unsafe {
26        let peb_ptr = P_PEB.unwrap();
27        let guest_error_buffer_ptr = (*peb_ptr).guestErrorData.guestErrorBuffer as *mut u8;
28        let guest_error_buffer_size = (*peb_ptr).guestErrorData.guestErrorSize as usize;
29
30        let guest_error_buffer = from_raw_parts(guest_error_buffer_ptr, guest_error_buffer_size);
31
32        if !guest_error_buffer.is_empty() {
33            let guest_error = GuestError::try_from(guest_error_buffer).expect("Invalid GuestError");
34            if guest_error.code != ErrorCode::NoError {
35                (*peb_ptr).outputdata.outputDataBuffer = usize::MAX as *mut c_void;
36                panic!(
37                    "Guest Error: {:?} - {}",
38                    guest_error.code, guest_error.message
39                );
40            }
41        }
42    }
43}
hyperlight_guest/host_error.rs

hyperlight_guest/
host_error.rs
