hyperlight_host/hypervisor/
fpu.rs

1/*
2Copyright 2025  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
17pub(crate) const FP_CONTROL_WORD_DEFAULT: u16 = 0x37f; // mask all fp-exception, set rounding to nearest, set precision to 64-bit
18pub(crate) const FP_TAG_WORD_DEFAULT: u8 = 0xff; // each 8 of x87 fpu registers is empty
19pub(crate) const MXCSR_DEFAULT: u32 = 0x1f80; // mask simd fp-exceptions, clear exception flags, set rounding to nearest, disable flush-to-zero mode, disable denormals-are-zero mode
hyperlight_host/hypervisor/fpu.rs

hyperlight_host/hypervisor/
fpu.rs
