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Project ACRN v: 1.0
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  • Introduction to Project ACRN
    • Automotive Use Case Example
    • Licensing
    • ACRN Device Model, Service OS, and User OS
    • Boot Sequence
    • ACRN Hypervisor Architecture
    • ACRN Device Model Architecture
    • Device pass through
      • Hardware support for device passthrough
      • Hypervisor support for device passthrough
    • ACRN I/O mediator
    • Virtio framework architecture
  • Getting Started Guides
    • Getting started guide for Intel NUC
      • Hardware setup
        • Connecting to the serial port
        • Firmware update on the NUC
      • Software setup
        • Set up a Clear Linux Operating System
        • Use the script to set up ACRN automatically
        • Manual setup ACRN guide
        • Add the ACRN hypervisor to the EFI Partition
        • ACRN Network Bridge
        • Set up Reference UOS
    • Getting started guide for UP2 board
      • Hardware setup
        • Connecting to the serial port
      • Software setup
        • UP2 serial port setting
        • UP2 block device
      • Running the hypervisor
    • Build ACRN from Source
      • Install build tools and dependencies
      • Build the hypervisor, device model and tools
      • Configuring the hypervisor
      • Modify the hypervisor configurations
      • Create a new default configuration
  • Supported Hardware
    • Intel Apollo Lake NUC
    • Intel Kaby Lake NUC
    • UP Squared board
  • User Guides
    • ACRN Shell Commands
      • Command examples
        • vm_list
        • vcpu_list
        • vcpu_dumpreg
        • dumpmem
        • vm_console
        • vioapic
        • dump_ioapic
        • pt
        • int
        • cpuid
        • rdmsr
        • wrmsr
    • ACRN Kernel Parameters
      • Generic kernel parameters
      • Intel GVT-g (AcrnGT) Parameters
        • GVT-g (AcrnGT) Kernel Options details
        • i915.domain_scaler_owner
        • i915.enable_hangcheck
    • Device Model Parameters
    • Tools
      • ACRN tools
      • ACRN-Crashlog
        • Introduction
        • Building
        • Installing
        • Enabling/Disabling
        • Usage
        • Source Code
      • acrnprobe
        • Description
        • Usage
        • Architecture
        • Source files
        • Configuration files
      • acrnprobe Configuration
        • Description
        • Layout
        • Properties of group members
        • Crash tree in acrnprobe
        • Sections
      • usercrash
        • Description
        • Design
        • Usage
        • Source Code
      • acrnctl and acrnd
        • Description
        • Usage
        • acrnd
        • Build and Install
      • acrnlog
        • Description
        • Usage
        • Build and Install
      • acrntrace
        • Description
        • Usage
        • Build and Install
  • Developer Guides
    • High-Level Design Guides
      • Overview
        • ACRN Supported Use Cases
        • Hardware Requirements
        • ACRN Architecture
        • Hypervisor
        • SOS
        • UOS
        • Freedom From Interference
        • Boot Flow
        • Power Management
      • Hypervisor
        • Hypervisor Startup
        • CPU Virtualization
        • Memory management
        • I/O Emulation
        • IOC Virtualization
        • Physical Interrupt
        • Timer
        • Virtual Interrupt
        • VT-d
        • Device Passthrough
        • Partition mode
        • Power Management
        • Console, Shell, and vUART
        • Hypercall / VHM upcall
        • Compile-time configuration
      • Device Model
        • Configuration
        • DM Initialization
        • VHM
        • I/O Emulation in SOS
        • Device Emulation
        • ISA and PCI Emulation
        • ACPI Virtualization
        • PM in Device Model
      • Emulated Devices
        • USB Virtualization
        • UART virtualization
        • Watchdoc virtualization
        • Random device virtualization
        • GVT-g GPU Virtualization
      • Virtio Devices
        • Virtio introduction
        • Key Concepts
        • Virtio Frameworks
        • Virtio APIs
        • Supported Virtio Devices
      • VM Management
        • VM state
        • Scenarios of VM state change
        • VM State management
      • Power Management
        • P-state/C-state management
        • S3/S5
      • Tracing and Logging
        • Shared Buffer
        • ACRN Trace
        • ACRN Log
      • Virtual Bootloader
      • Security
        • Introduction
        • Background
        • ACRN High-Level Security Architecture
    • Developer Primer
      • Source Tree Structure
        • ACRN hypervisor source tree
        • ACRN Device Model source tree
        • ACRN Tools source tree
        • ACRN documentation source tree
      • CPU virtualization
        • Host GDT
        • Host IDT
        • Guest SMP Booting
        • VMX configuration
        • CPUID and Guest TSC calibration
        • RDTSC/RDTSCP
        • CR Register virtualization
        • MSR BITMAP
        • I/O BITMAP
        • Exceptions
      • Memory virtualization
        • Physical Memory Layout
        • PV (MMU) Memory Mapping in the Hypervisor
        • PV (MMU) Memory Mapping in VMs
        • Host-Guest (EPT) Memory Mapping
      • Graphic mediation
      • I/O emulation
        • Device Assignment Management
        • PIO/MMIO trap Flow
      • Virtual interrupt
        • Virtual LAPIC
        • Virtual IOAPIC
        • Virtual PIC
        • Virtual Interrupt Injection
      • VT-x and VT-d
      • Hypercall
      • Device emulation
      • Virtio Devices
        • Virtio-rnd
        • Virtio-blk
        • Virtio-net
        • Virtio-console
    • GVT-g Enabling and Porting Guide
      • Introduction
      • Purpose of this document
      • Overall Components
      • Core scenario interaction sequences
        • vGPU creation scenario
        • vGPU destroy scenario
        • vGPU pci configure space write scenario
        • pci configure space read scenario
        • GGTT read/write scenario
        • MMIO read/write scenario
        • PPGTT write protection page set/unset scenario
        • PPGTT write protection page write
      • API details
    • Trusty TEE
      • Introduction
      • Trusty Architecture
      • Trusty specific Hypercalls
      • Trusty Boot flow
      • EPT Hierarchy
        • Design
        • Benefit
        • API
    • L1 Terminal Fault Mitigation
      • Overview
      • L1TF Problem in ACRN
        • Guest -> hypervisor Attack
        • Guest -> guest Attack
        • Normal_world -> Secure_world Attack
        • Affected Processors
      • L1TF Mitigation in ACRN
        • L1D flush on VMENTRY
        • EPT Sanitization
        • Put Secret Data into Uncached Memory
        • L1D flush on World Switch
        • Core-based scheduling
      • Mitigation Recommendations
      • Mitigation Status
    • VBS-K Framework Virtualization Overhead Analysis
      • Introduction
      • Architecture of VIRTIO-ECHO
      • Virtualization Overhead Analysis
      • Conclusion
    • ACRN Hypervisor: Modular Design
      • Overview
      • Principles
        • Minimizing Cyclic Dependencies
        • Measuring Complexity
      • Architecture
      • References
    • API Documentation
      • Hypercall APIs
      • Device Model APIs
      • ACRN GVT-g APIs
        • Core Driver Infrastructure
        • VHM APIs called from AcrnGT
        • AcrnGT mediated pass-through (MPT) interface
        • GVT-g intel_gvt_ops interface
        • AcrnGT sysfs interface
    • Configuration Symbol Reference
      • Introduction
      • Supported Options
    • Contributing to the project
      • Contribution Guidelines
        • Licensing
        • Developer Certification of Origin (DCO)
        • Prerequisites
        • Repository layout
        • Submitting Issues
        • Contribution Tools and Git Setup
        • Coding Style
        • Contribution Workflow
        • Commit Guidelines
      • Coding Guidelines
        • C Programming Language Coding Guidelines
        • Assembly Language Coding Guidelines
      • Documentation Guidelines
        • Headings
        • Content Highlighting
        • Lists
        • Multi-column lists
        • File names and Commands
        • Internal Cross-Reference Linking
        • Non-ASCII Characters
        • Code and Command Examples
        • Tabs, spaces, and indenting
        • Drawings
      • Drawings using graphviz
        • Simple directed graph
        • Adding edge labels
        • Tables
        • Finite-State Machine
      • Software Design Guidelines
        • Error Detection and Error Handling
        • Module Level Configuration Design Guidelines
        • References
  • Tutorials
    • Running AGL as VMs
      • Hardware setup
        • Connecting hardware
      • Software Setup
        • Service OS
        • Building ACRN kernel for AGL (UOS)
        • Setting up AGLs
    • Building UOS from Clear Linux OS
      • Build UOS image in Clear Linux OS
      • Start the User OS (UOS)
    • ACRN Debugging Tools
      • ACRN Console Command
      • An example
      • ACRN Log
        • Turn on the logging info
        • Set and grab log
      • ACRN Trace
        • Using Existing trace event id to analyze trace
        • Using Self-defined trace event id to analyze trace
    • ACRN documentation generation
      • Documentation overview
      • Set up the documentation working folders
      • Installing the documentation tools
      • Documentation presentation theme
      • Running the documentation processors
      • Publishing content
      • Document Versioning
      • Filtering expected warnings
    • Increasing the User OS disk size
      • Increase the virtual disk size
      • Resize the rootfs partition
      • Resize the filesystem
    • Using PREEMPT_RT-Linux for real-time UOS
    • GPU Passthrough on Skylake NUC
      • Hardware platform
      • Software Configuration
      • Software Setup
    • Using a static IP address
      • ACRN Network Setup
      • Setting up the static IP address
      • Activate the new configuration
    • Trusty and Security Services in ACRN
      • Trusty Architecture
      • Trusty Services
        • Keystore
        • Secure Storage (SS)
      • Trusty in ACRN
        • One-VM, Two-Worlds
        • Secure Storage Virtualization
        • References:
    • Using AGL as the User OS
      • Introduction to AGL
      • Steps for using AGL as the UOS
      • Enable the AGL display
      • Follow up
    • Using CAT on UP2
      • CAT Support on ACRN
    • Tuning CAT in HV debug shell
    • Configure CAT for VM with VM Configuration
    • Using partition mode on UP2
      • Prerequisites
      • Build kernel and modules for partition mode UOS
      • Enable partition mode in ACRN hypervisor
      • Switch between privileged VMs
    • Using SBL on UP2 Board
      • Prerequisites
      • Build SBL
      • Flash SBL on the UP2
      • Build ACRN for UP2
      • Download and install flash tool
      • SOS and LaaG Installation
      • Boot to SOS
      • Launch UOS
    • Using Ubuntu as the Service OS
      • Install Ubuntu (natively)
      • Install ACRN
      • Install the Service OS kernel
      • Prepare the User OS (UOS)
      • Start the User OS (UOS)
      • Enabling network sharing
      • Enabling USB keyboard and mouse
    • Using Zephyr as User OS
      • Introduction to Zephyr
      • Steps for Using Zephyr as User OS
  • Release Notes
    • ACRN v1.0.2 (November 2019)
      • Change Log in v1.0.2 since v1.0.1
    • ACRN v1.0.1 (July 2019)
      • Change Log in version 1.0.1 since version 1.0
    • ACRN v1.0 (May 2019)
      • Version 1.0 major features
        • Hardware Support
        • APL UP2 board with SBL firmware
        • Enable post-launched RTVM support for real-time UOS in ACRN
        • Enable cache QOS with CAT
        • Enable QoS based on runC container
        • S5 support for RTVM
        • OVMF support initial patches merged in ACRN
        • Support ACPI power key mediator
        • VT-x, VT-d
        • PIC/IOAPIC/MSI/MSI-X/PCI/LAPIC
        • Ethernet
        • Mass Storage
        • USB (xDCI)
        • USB Mediator (xHCI)
        • Wi-Fi
        • IPU (MIPI CSI-2, HDMI-in)
        • Bluetooth
        • GVT-g for ACRN
        • GPU - Preemption
        • GPU - display surface sharing via Hyper DMA
        • Virtio standard is supported
        • Device pass-through support
        • GPIO virtualization
        • New ACRN tools
        • Document updates
      • New Features Details
      • Fixed Issues Details
      • Known Issues
      • Change Log
    • ACRN v0.8 (Apr 2019)
      • Version 0.8 new features
        • GPIO virtualization
        • Enable QoS based on runC container
        • S5 support for RTVM
        • Document updates
      • New Features Details
      • Fixed Issues Details
      • Known Issues
      • Change Log
    • ACRN v0.7 (Mar 2019)
      • Version 0.7 new features
        • Enable cache QOS with CAT
        • Support ACPI power key mediator
        • Document updates
      • New Features Details
      • Fixed Issues Details
      • Known Issues
      • Change Log
    • ACRN v0.6 (Feb 2019)
      • Version 0.6 new features
      • Fixed Issues
      • Known Issues
      • Change Log
    • ACRN v0.5 (Jan 2019)
      • Version 0.5 new features
      • Fixed Issues
      • Known Issues
      • Change Log
    • ACRN v0.4 (Dec 2018)
      • Version 0.4 new features
      • Fixed Issues
      • Known Issues
      • Change Log
    • ACRN v0.3 (Nov 2018)
      • Version 0.3 new features
      • Fixed Issues
      • Known Issues
      • Change Log
    • ACRN v0.2 (Sep 2018)
      • Version 0.2 new features
        • VT-x, VT-d
        • PIC/IOAPIC/MSI/MSI-X/PCI/LAPIC
        • Ethernet
        • Storage (eMMC)
        • USB (xDCI)
        • USB Mediator (xHCI and DRD)
        • CSME
        • WiFi
        • IPU (MIPI-CS2, HDMI-in)
        • Bluetooth
        • GPU - Preemption
        • GPU - display surface sharing via Hyper DMA
        • S3
      • Fixed Issues
      • Known Issues
      • Change Log
    • ACRN v0.1 (July 2018)
      • Version 0.1 new features
        • Hardware Support
        • GVT-g for ACRN
        • Virtio standard is supported
        • Device pass-through support
        • Hypervisor configuration
        • New ACRN tools
      • Known Issues
      • Change Log
  • FAQ
    • What hardware does ACRN support?
    • Clear Linux* OS fails to boot on my NUC
    • How do I configure ACRN’s memory use?
    • How to modify the default display output for a UOS?
    • Why does ACRN need to know how much RAM the system has?
    • How to build ACRN on Fedora 29?
Project ACRN™
  • Docs »
  • Developer Guides »
  • High-Level Design Guides »
  • Hypervisor high-level design

Hypervisor high-level design¶

  • Hypervisor Startup
  • CPU Virtualization
  • Memory management
  • I/O Emulation
  • IOC Virtualization
  • Physical Interrupt
  • Timer
  • Virtual Interrupt
  • VT-d
  • Device Passthrough
  • Partition mode
  • Power Management
  • Console, Shell, and vUART
  • Hypercall / VHM upcall
  • Compile-time configuration

© Copyright 2019, Project ACRN. Last updated on Nov 22, 2019.