github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/cpuid/cpu_amd64.s (about)

     1  // Copyright 2018 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // func HostID(rax, rcx uint32) (ret0, ret1, ret2, ret3 uint32)
    16  TEXT ·HostID(SB),$0-48
    17  	MOVL ax+0(FP), AX
    18  	MOVL cx+4(FP), CX
    19  	CPUID
    20  	MOVL AX, ret0+8(FP)
    21  	MOVL BX, ret1+12(FP)
    22  	MOVL CX, ret2+16(FP)
    23  	MOVL DX, ret3+20(FP)
    24  	RET