diff options
Diffstat (limited to 'pkg/sentry/platform/ring0/kernel.go')
-rw-r--r-- | pkg/sentry/platform/ring0/kernel.go | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/pkg/sentry/platform/ring0/kernel.go b/pkg/sentry/platform/ring0/kernel.go deleted file mode 100644 index 292f9d0cc..000000000 --- a/pkg/sentry/platform/ring0/kernel.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// 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. - -package ring0 - -// Init initializes a new kernel. -// -//go:nosplit -func (k *Kernel) Init(maxCPUs int) { - k.init(maxCPUs) -} - -// Halt halts execution. -func Halt() - -// defaultHooks implements hooks. -type defaultHooks struct{} - -// KernelSyscall implements Hooks.KernelSyscall. -// -// +checkescape:all -// -//go:nosplit -func (defaultHooks) KernelSyscall() { - Halt() -} - -// KernelException implements Hooks.KernelException. -// -// +checkescape:all -// -//go:nosplit -func (defaultHooks) KernelException(Vector) { - Halt() -} - -// kernelSyscall is a trampoline. -// -// When in amd64, it is called with %rip on the upper half, so it can -// NOT access to any global data which is not mapped on upper and must -// call to function pointers or interfaces to switch to the lower half -// so that callee can access to global data. -// -// +checkescape:hard,stack -// -//go:nosplit -func kernelSyscall(c *CPU) { - c.hooks.KernelSyscall() -} - -// kernelException is a trampoline. -// -// When in amd64, it is called with %rip on the upper half, so it can -// NOT access to any global data which is not mapped on upper and must -// call to function pointers or interfaces to switch to the lower half -// so that callee can access to global data. -// -// +checkescape:hard,stack -// -//go:nosplit -func kernelException(c *CPU, vector Vector) { - c.hooks.KernelException(vector) -} - -// Init initializes a new CPU. -// -// Init allows embedding in other objects. -func (c *CPU) Init(k *Kernel, cpuID int, hooks Hooks) { - c.self = c // Set self reference. - c.kernel = k // Set kernel reference. - c.init(cpuID) // Perform architectural init. - - // Require hooks. - if hooks != nil { - c.hooks = hooks - } else { - c.hooks = defaultHooks{} - } -} |