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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License..
use super::*;
use sgx_types::marker::ContiguousMemory;
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
pub struct CpuidResult {
pub eax: u32,
pub ebx: u32,
pub ecx: u32,
pub edx: u32,
}
unsafe impl ContiguousMemory for CpuidResult {}
pub unsafe fn cpuid_count(leaf: u32, sub_leaf: u32) -> OCallResult<CpuidResult> {
let mut cpuinfo = [0_i32; 4];
let status = sgx_oc_cpuidex(&mut cpuinfo as *mut [i32; 4], leaf as i32, sub_leaf as i32);
ensure!(status.is_success(), esgx!(status));
Ok(CpuidResult {
eax: cpuinfo[0] as u32,
ebx: cpuinfo[1] as u32,
ecx: cpuinfo[2] as u32,
edx: cpuinfo[3] as u32,
})
}
#[inline]
pub unsafe fn cpuid(leaf: u32) -> OCallResult<CpuidResult> {
cpuid_count(leaf, 0)
}