From d02b74a5dcfed4bfc8f2f8e545bca4d2afabb296 Mon Sep 17 00:00:00 2001 From: Googler Date: Fri, 27 Apr 2018 10:37:02 -0700 Subject: Check in gVisor. PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463 --- pkg/sentry/usermem/usermem_x86.go | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 pkg/sentry/usermem/usermem_x86.go (limited to 'pkg/sentry/usermem/usermem_x86.go') diff --git a/pkg/sentry/usermem/usermem_x86.go b/pkg/sentry/usermem/usermem_x86.go new file mode 100644 index 000000000..2484b0d82 --- /dev/null +++ b/pkg/sentry/usermem/usermem_x86.go @@ -0,0 +1,38 @@ +// Copyright 2018 Google Inc. +// +// Licensed 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. + +// +build amd64 i386 + +package usermem + +import "encoding/binary" + +const ( + // PageSize is the system page size. + PageSize = 1 << PageShift + + // HugePageSize is the system huge page size. + HugePageSize = 1 << HugePageShift + + // PageShift is the binary log of the system page size. + PageShift = 12 + + // HugePageShift is the binary log of the system huge page size. + HugePageShift = 21 +) + +var ( + // ByteOrder is the native byte order (little endian). + ByteOrder = binary.LittleEndian +) -- cgit v1.2.3