mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-10-21 20:08:54 +00:00
f2096f1f4e
There were missing test cases in Arm64 for platform-dependent kata-check and kata-env, leading to 'make test' failure under kata-containers/runtime Fixes: #403 Signed-off-by: Penny Zheng <penny.zheng@arm.com>
129 lines
3.0 KiB
Go
129 lines
3.0 KiB
Go
// Copyright (c) 2018 Intel Corporation
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
const (
|
|
cpuFlagsTag = "Features"
|
|
archCPUVendorField = "CPU implementer"
|
|
archCPUModelField = "CPU architecture"
|
|
)
|
|
|
|
// archRequiredCPUFlags maps a CPU flag value to search for and a
|
|
// human-readable description of that value.
|
|
var archRequiredCPUFlags = map[string]string{}
|
|
|
|
// archRequiredCPUAttribs maps a CPU (non-CPU flag) attribute value to search for
|
|
// and a human-readable description of that value.
|
|
var archRequiredCPUAttribs = map[string]string{}
|
|
|
|
// archRequiredKernelModules maps a required module name to a human-readable
|
|
// description of the modules functionality and an optional list of
|
|
// required module parameters.
|
|
var archRequiredKernelModules = map[string]kernelModule{
|
|
"kvm": {
|
|
desc: "Kernel-based Virtual Machine",
|
|
},
|
|
"vhost": {
|
|
desc: "Host kernel accelerator for virtio",
|
|
},
|
|
"vhost_net": {
|
|
desc: "Host kernel accelerator for virtio network",
|
|
},
|
|
}
|
|
|
|
// kvmIsUsable determines if it will be possible to create a full virtual machine
|
|
// by creating a minimal VM and then deleting it.
|
|
func kvmIsUsable() error {
|
|
return genericKvmIsUsable()
|
|
}
|
|
|
|
func archHostCanCreateVMContainer() error {
|
|
return kvmIsUsable()
|
|
}
|
|
|
|
// hostIsVMContainerCapable checks to see if the host is theoretically capable
|
|
// of creating a VM container.
|
|
func hostIsVMContainerCapable(details vmContainerCapableDetails) error {
|
|
|
|
_, err := getCPUInfo(details.cpuInfoFile)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
count, err := checkKernelModules(details.requiredKernelModules, archKernelParamHandler)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if count == 0 {
|
|
return nil
|
|
}
|
|
|
|
return fmt.Errorf("ERROR: %s", failMessage)
|
|
|
|
}
|
|
|
|
func archKernelParamHandler(onVMM bool, fields logrus.Fields, msg string) bool {
|
|
return genericArchKernelParamHandler(onVMM, fields, msg)
|
|
}
|
|
|
|
// The CPU Vendor here for Arm means the CPU core
|
|
// IP Implementer.
|
|
// normalizeArmVendor maps 'CPU implementer' in /proc/cpuinfo
|
|
// to human-readable description of that value.
|
|
func normalizeArmVendor(vendor string) string {
|
|
|
|
switch vendor {
|
|
case "0x41":
|
|
vendor = "ARM Limited"
|
|
default:
|
|
vendor = "3rd Party Limited"
|
|
}
|
|
|
|
return vendor
|
|
}
|
|
|
|
// The CPU Model here for Arm means the Instruction set, that is
|
|
// the variant number of Arm processor.
|
|
// normalizeArmModel maps 'CPU architecture' in /proc/cpuinfo
|
|
// to human-readable description of that value.
|
|
func normalizeArmModel(model string) string {
|
|
switch model {
|
|
case "8":
|
|
model = "v8"
|
|
case "7", "7M", "?(12)", "?(13)", "?(14)", "?(15)", "?(16)", "?(17)":
|
|
model = "v7"
|
|
case "6", "6TEJ":
|
|
model = "v6"
|
|
case "5", "5T", "5TE", "5TEJ":
|
|
model = "v5"
|
|
case "4", "4T":
|
|
model = "v4"
|
|
case "3":
|
|
model = "v3"
|
|
default:
|
|
model = "unknown"
|
|
}
|
|
|
|
return model
|
|
}
|
|
|
|
func getCPUDetails() (vendor, model string, err error) {
|
|
if vendor, model, err := genericGetCPUDetails(); err == nil {
|
|
vendor = normalizeArmVendor(vendor)
|
|
model = normalizeArmModel(model)
|
|
return vendor, model, err
|
|
} else {
|
|
return vendor, model, err
|
|
}
|
|
}
|