wehub-resource-sync
85 lines
3.2 KiB
Swift
85 lines
3.2 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 Apple Inc. and the Containerization project 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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// https://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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//===----------------------------------------------------------------------===//
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#if os(macOS)
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import ContainerizationError
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import ContainerizationOCI
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import Foundation
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import Logging
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import NIOCore
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/// A virtualization.framework backed `VirtualMachineManager` implementation.
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public struct VZVirtualMachineManager: VirtualMachineManager {
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private let kernel: Kernel
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private let initialFilesystem: Mount
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private let rosetta: Bool
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private let nestedVirtualization: Bool
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private let group: EventLoopGroup?
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private let logger: Logger?
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public init(
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kernel: Kernel,
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initialFilesystem: Mount,
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rosetta: Bool = false,
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nestedVirtualization: Bool = false,
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group: EventLoopGroup? = nil,
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logger: Logger? = nil
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) {
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self.kernel = kernel
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self.initialFilesystem = initialFilesystem
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self.rosetta = rosetta
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self.nestedVirtualization = nestedVirtualization
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self.group = group
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self.logger = logger
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}
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public func create(config: some VMCreationConfig) throws -> any VirtualMachineInstance {
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let vmConfig = config.configuration
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// Use nested virtualization if requested in config or set as default in manager
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let useNestedVirtualization = vmConfig.nestedVirtualization || self.nestedVirtualization
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// Clamp to system RAM as Virtualization.framework bounds us to this.
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let memoryInBytes = min(vmConfig.memoryInBytes, ProcessInfo.processInfo.physicalMemory)
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// Clamp to system CPU count as Virtualization.framework bounds us to this.
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let cpus = min(vmConfig.cpus, ProcessInfo.processInfo.activeProcessorCount)
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return try VZVirtualMachineInstance(
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group: self.group,
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logger: self.logger,
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with: { instanceConfig in
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instanceConfig.cpus = cpus
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instanceConfig.memoryInBytes = memoryInBytes
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instanceConfig.kernel = self.kernel
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instanceConfig.initialFilesystem = self.initialFilesystem
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if let bootLog = vmConfig.bootLog {
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instanceConfig.bootLog = bootLog
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}
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instanceConfig.interfaces = vmConfig.interfaces
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instanceConfig.rosetta = self.rosetta
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instanceConfig.nestedVirtualization = useNestedVirtualization
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instanceConfig.mountsByID = vmConfig.mountsByID
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instanceConfig.extensions = vmConfig.extensions
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})
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}
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}
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#endif
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