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34 lines
1008 B
ArmAsm
34 lines
1008 B
ArmAsm
// Copyright 2021 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "textflag.h"
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// stmxcsr reads the MXCSR control and status register.
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TEXT ·stmxcsr(SB),NOSPLIT|NOFRAME,$0-8
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MOVQ addr+0(FP), SI
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STMXCSR (SI)
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RET
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TEXT ·vmcall(SB),NOSPLIT,$0-16
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MOVQ $ax+0(FP), AX
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BYTE $0x0F; BYTE $0x01; BYTE $0xC1; // vmcall
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MOVQ AX, ret+8(FP)
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RET
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TEXT ·vmmcall(SB),NOSPLIT,$0-16
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MOVQ $ax+0(FP), AX
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BYTE $0x0F; BYTE $0x01; BYTE $0xD9; // vmmcall
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MOVQ AX, ret+8(FP)
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RET
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