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runtime: Enable runtime check for riscv64
Enable `kata-runtime check` command to work on riscv64 platforms to make sure required features/devices presents. Co-authored-by: Yuting Nie <nieyuting@iscas.ac.cn> Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>
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138
src/runtime/cmd/kata-runtime/kata-check_riscv64.go
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138
src/runtime/cmd/kata-runtime/kata-check_riscv64.go
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// Copyright (c) 2024 Institute of Software, CAS.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package main
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import (
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"fmt"
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"strings"
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vc "github.com/kata-containers/kata-containers/src/runtime/virtcontainers"
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"github.com/sirupsen/logrus"
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)
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const (
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cpuFlagsTag = genericCPUFlagsTag
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archCPUVendorField = "mvenderid"
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archCPUModelField = "marchid"
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)
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// archRequiredCPUFlags maps a CPU flag value to search for and a
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// human-readable description of that value.
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var archRequiredCPUFlags = map[string]string{}
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// archRequiredCPUAttribs maps a CPU (non-CPU flag) attribute value to search for
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// and a human-readable description of that value.
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var archRequiredCPUAttribs = map[string]string{}
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// archRequiredKernelModules maps a required module name to a human-readable
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// description of the modules functionality and an optional list of
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// required module parameters.
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var archRequiredKernelModules = map[string]kernelModule{
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"kvm": {
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desc: "Kernel-based Virtual Machine",
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required: true,
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},
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"vhost": {
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desc: "Host kernel accelerator for virtio",
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required: true,
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},
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"vhost_net": {
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desc: "Host kernel accelerator for virtio network",
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required: true,
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},
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"vhost_vsock": {
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desc: "Host Support for Linux VM Sockets",
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required: false,
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},
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}
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func setCPUtype(hypervisorType vc.HypervisorType) error {
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return nil
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}
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// kvmIsUsable determines if it will be possible to create a full virtual machine
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// by creating a minimal VM and then deleting it.
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func kvmIsUsable() error {
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return genericKvmIsUsable()
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}
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func archHostCanCreateVMContainer(hypervisorType vc.HypervisorType) error {
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return kvmIsUsable()
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}
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// hostIsVMContainerCapable checks to see if the host is theoretically capable
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// of creating a VM container.
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func hostIsVMContainerCapable(details vmContainerCapableDetails) error {
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_, err := getCPUInfo(details.cpuInfoFile)
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if err != nil {
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return err
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}
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count, err := checkKernelModules(details.requiredKernelModules, archKernelParamHandler)
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if err != nil {
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return err
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}
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if count == 0 {
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return nil
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}
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return fmt.Errorf("ERROR: %s", failMessage)
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}
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func archKernelParamHandler(onVMM bool, fields logrus.Fields, msg string) bool {
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return genericArchKernelParamHandler(onVMM, fields, msg)
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}
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func getRiscv64CPUDetails() (vendor, model string, err error) {
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prefixModel := "processor"
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cpuinfo, err := getCPUInfo(procCPUInfo)
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if err != nil {
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return "", "", err
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}
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lines := strings.Split(cpuinfo, "\n")
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for _, line := range lines {
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if archCPUVendorField != "" {
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if strings.HasPrefix(line, archCPUVendorField) {
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fields := strings.Split(line, ":")
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if len(fields) > 1 {
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vendor = strings.TrimSpace(fields[1])
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}
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}
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} else {
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vendor = "Unknown"
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}
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if archCPUModelField != "" {
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if strings.HasPrefix(line, prefixModel) {
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fields := strings.Split(line, ":")
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if len(fields) > 1 {
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model = strings.TrimSpace(fields[1])
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}
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}
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}
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}
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if vendor == "" {
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return "", "", fmt.Errorf("cannot find vendor field in file %v", procCPUInfo)
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}
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if model == "" {
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return "", "", fmt.Errorf("Error in parsing cpu model from %v", procCPUInfo)
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}
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return vendor, model, nil
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}
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func getCPUDetails() (string, string, error) {
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if vendor, model, err := genericGetCPUDetails(); err == nil {
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return vendor, model, nil
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}
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return getRiscv64CPUDetails()
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}
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