Qemu
•Download as PPT, PDF•
0 likes•1,915 views
This document discusses QEMU, an open source virtual machine emulator. It can simulate complete systems by providing hardware virtualization for various CPU architectures. It supports full system emulation and has high platform support. Some key features mentioned include emulation of common PC hardware, use of KQEMU as an accelerator module to improve performance, and graphical frontends that can be used to control QEMU emulations. Official documentation and support resources are also listed.
Report
Share
Report
Share
Recommended
Qemu
QEMU is a free and open-source hypervisor that performs hardware virtualization by emulating CPUs through dynamic binary translation and providing device models. This allows it to run unmodified guest operating systems. It can be used to create virtual machines similarly to VMWare, VirtualBox, KVM, and Xen. QEMU also supports emulating different CPU architectures and can save and restore the state of a virtual machine.
QEMU in Cross building
The document discusses building software for embedded systems across different architectures using QEMU. It describes native building versus cross building, and compares building directly on a system emulator versus Scratchbox. It proposes that a simpler approach is to use just the user mode of QEMU, along with chroot and binfmt_misc. An example is given of setting up a basic ARM chroot environment and building software faster using user mode QEMU instead of a full system emulator. Issues like mounting proc and networking are also addressed.
Qemu x86 BIOS @ https://youtu.be/F71LGSrj9cc
Using old x86 hardware or QEMU to take control of CPU after Hard Reset. Overview of commonly used boot loaders , Preparing a custom message bootable USB stick and demo on x86-uboot with QEMU . It is discussed at
https://youtu.be/F71LGSrj9cc
blog: www.embedkari.com
Embedded Career: www.facebook.com/embedkari
Implements BIOS emulation support for BHyVe
This document discusses implementing BIOS emulation support for BHyVe, the hypervisor component of FreeBSD. It provides an overview of BHyVe's internal structure, including how it uses Intel VT-x hardware-assisted virtualization to run guest virtual machines. It then outlines a project to add BIOS emulation capabilities to BHyVe in order to support booting legacy systems within BHyVe virtual machines, as is done in other hypervisors like KVM through the use of emulated BIOS code. Alternatives and challenges to implementing BIOS emulation for BHyVe are also discussed.
Implements BIOS emulation support for BHyVe: A BSD Hypervisor
The document discusses implementing BIOS emulation support for BHyVe, a BSD hypervisor. It describes how BIOS is handled on real hardware and Linux KVM. For BHyVe, it proposes using a pseudo BIOS that traps BIOS calls using the VMCALL instruction to cause a VM exit, where BHyVe can then emulate the BIOS call rather than using a real BIOS as KVM does. This avoids licensing issues while still providing BIOS support to enable more guest operating systems on BHyVe.
Development platform virtualization using qemu
This document describes how to set up platform virtualization using Qemu to boot a custom Linux kernel for testing purposes. It involves installing Qemu, building Busybox to create an initramfs file system, configuring and building a custom Linux kernel, and using Qemu to boot the kernel image with the initramfs for virtual testing and debugging.
Qemu Introduction
QEMU is an emulator that uses dynamic translation to emulate one instruction set architecture (ISA) on another host ISA. It translates guest instructions to an intermediate representation (TCG IR) code, and then compiles the IR code to native host instructions. QEMU employs techniques like translation block caching and chaining to improve the performance of dynamic translation. It also uses helper functions to offload complex operations during translation to improve efficiency.
VM - Talk
This document discusses different types of virtualization including full virtualization, paravirtualization, and software emulation. It describes common virtualization platforms like VMware, VirtualBox, KVM, and Xen and how KVM utilizes the Linux kernel to enable virtualization on systems with Intel VT-x or AMD-V support. The document also mentions management tools for KVM like libvirt and demos its virtualization capabilities before opening for questions.
Recommended
Qemu
QEMU is a free and open-source hypervisor that performs hardware virtualization by emulating CPUs through dynamic binary translation and providing device models. This allows it to run unmodified guest operating systems. It can be used to create virtual machines similarly to VMWare, VirtualBox, KVM, and Xen. QEMU also supports emulating different CPU architectures and can save and restore the state of a virtual machine.
QEMU in Cross building
The document discusses building software for embedded systems across different architectures using QEMU. It describes native building versus cross building, and compares building directly on a system emulator versus Scratchbox. It proposes that a simpler approach is to use just the user mode of QEMU, along with chroot and binfmt_misc. An example is given of setting up a basic ARM chroot environment and building software faster using user mode QEMU instead of a full system emulator. Issues like mounting proc and networking are also addressed.
Qemu x86 BIOS @ https://youtu.be/F71LGSrj9cc
Using old x86 hardware or QEMU to take control of CPU after Hard Reset. Overview of commonly used boot loaders , Preparing a custom message bootable USB stick and demo on x86-uboot with QEMU . It is discussed at
https://youtu.be/F71LGSrj9cc
blog: www.embedkari.com
Embedded Career: www.facebook.com/embedkari
Implements BIOS emulation support for BHyVe
This document discusses implementing BIOS emulation support for BHyVe, the hypervisor component of FreeBSD. It provides an overview of BHyVe's internal structure, including how it uses Intel VT-x hardware-assisted virtualization to run guest virtual machines. It then outlines a project to add BIOS emulation capabilities to BHyVe in order to support booting legacy systems within BHyVe virtual machines, as is done in other hypervisors like KVM through the use of emulated BIOS code. Alternatives and challenges to implementing BIOS emulation for BHyVe are also discussed.
Implements BIOS emulation support for BHyVe: A BSD Hypervisor
The document discusses implementing BIOS emulation support for BHyVe, a BSD hypervisor. It describes how BIOS is handled on real hardware and Linux KVM. For BHyVe, it proposes using a pseudo BIOS that traps BIOS calls using the VMCALL instruction to cause a VM exit, where BHyVe can then emulate the BIOS call rather than using a real BIOS as KVM does. This avoids licensing issues while still providing BIOS support to enable more guest operating systems on BHyVe.
Development platform virtualization using qemu
This document describes how to set up platform virtualization using Qemu to boot a custom Linux kernel for testing purposes. It involves installing Qemu, building Busybox to create an initramfs file system, configuring and building a custom Linux kernel, and using Qemu to boot the kernel image with the initramfs for virtual testing and debugging.
Qemu Introduction
QEMU is an emulator that uses dynamic translation to emulate one instruction set architecture (ISA) on another host ISA. It translates guest instructions to an intermediate representation (TCG IR) code, and then compiles the IR code to native host instructions. QEMU employs techniques like translation block caching and chaining to improve the performance of dynamic translation. It also uses helper functions to offload complex operations during translation to improve efficiency.
VM - Talk
This document discusses different types of virtualization including full virtualization, paravirtualization, and software emulation. It describes common virtualization platforms like VMware, VirtualBox, KVM, and Xen and how KVM utilizes the Linux kernel to enable virtualization on systems with Intel VT-x or AMD-V support. The document also mentions management tools for KVM like libvirt and demos its virtualization capabilities before opening for questions.
Look Into Libvirt Osier Yang
Libvirt is an open source library that provides a standardized interface to manage virtualization platforms. It supports various hypervisors like QEMU/KVM, Xen, VMWare and containers. It provides APIs to manage domains, networks, storage and other virtualization components in a platform-independent way. Libvirt has over 25 maintainers and receives 200-300 patches per release to support new features and improve existing functionality.
Linux-without-a-bootloader
Done as part of OMAP Tutorial Hour
http://omapedia.org/wiki/Tutorial_Hour_Topics#Aug_25th_at_8:30_am_CST_.28Central_Standard_Time.29
Server Room Configuration
This document contains a list of virtual machines and their IP addresses on different hypervisors like VMWare and Hyper-V, as well as the firewall configuration with its external and internal IP addresses and subnet. It provides an inventory of VMs running on hypervisors in the server room along with the network configuration of the firewall.
Bootloaders (U-Boot)
This document discusses bootloaders for embedded systems. It defines a bootloader as the first code executed after a system powers on or resets that is responsible for loading the operating system kernel. The document then describes the tasks of a bootloader like initializing hardware, loading binaries from storage, and providing a shell. It outlines the booting process differences between desktops and embedded systems. Finally, it focuses on the universal bootloader U-Boot, describing its directory structure, configuration, building process, and commands.
Embedding Linux On The Encore Simputer
The document discusses porting the Linux kernel to run on the Encore Simputer, an ARM-based handheld device. It describes building the kernel from source, adding support for the Simputer's hardware including memory, display and peripherals. Finally, it mentions porting the 2.6 test kernel to the Simputer and thanks the audience.
Creación de máquinas virtuales basada en kernel usando qemu y virsh
The document discusses how to install and configure different Linux distributions as virtual machines using KVM including CentOS 7, CentOS 8, Ubuntu 20.04, Fedora 20, and Debian 10. It provides instructions for downloading ISO images, creating virtual disks, and launching virtual machines with the virt-install command while specifying OS variants, RAM, vCPUs, network, graphics, and ISO image source for each.
Introduction to Modern U-Boot
U-Boot is an open source bootloader used widely in embedded systems. It initializes hardware and loads the operating system kernel. The document provides an overview of U-Boot from the user and developer perspectives, including its features, build process, file structure, and boot sequence. It also discusses modernizing efforts like adopting the driver model, device tree, and Kbuild configuration system to improve compatibility and support new platforms.
NetBSD on Google Compute Engine (en)
NetBSD can run on Google Compute Engine virtual machines. To set this up, one must install the Google Cloud SDK and create a NetBSD disk image with the vioscsi driver. This disk image is uploaded to Google Cloud Storage and used to create a virtual machine instance on Google Compute Engine. When the instance boots, the boot messages can be viewed which show the virtual devices like virtio SCSI and network being initialized and the root file system mounting from the persistent disk.
Kernel Recipes 2013 - Conditional boot
This document discusses various ways to customize a bootloader's behavior based on hardware properties detected at boot time. It presents options for tweaking Grub2 or Syslinux to select different boot options depending on characteristics like the CPU type, virtualization support, or whether the system is running in a hypervisor. Specific examples are provided of using Syslinux modules or Lua scripts to detect properties and adjust the kernel command line accordingly in order to boot different kernels optimized for the detected hardware.
U-Boot presentation 2013
U-Boot is an open source boot loader that initializes hardware and loads operating systems. It supports many CPUs and boards. The boot process involves a pre-relocation phase where U-Boot initializes hardware and copies itself to RAM, and a post-relocation phase where it finishes hardware initialization and loads the kernel or operating system. Debugging can be done before and after relocation by setting breakpoints and examining memory.
Pc bsd-intro
PC-BSD is a desktop operating system based on FreeBSD that focuses on usability. It provides a graphical installer and utilities like AppCafe for managing software packages and Warden for jail management. The latest version is 9.0 Isotope Edition and it can be installed from DVD, USB, or virtual machine images. After installation, the PC-FirstBoot utility helps with initial configuration and connecting to networks. Software is managed through the pbi package system and AppCafe front-end. System updates are also available through the Update Manager.
Wowza project
The document discusses requirements for using Wowza Media Server including purchasing version 2, checking the free Linux version, and reviewing demos on their website. It provides system requirements and lists supported file formats and features. Svnlabs will use Wowza for media streaming and management, open source players, and WordPress for user management. The document also provides links to additional Wowza documentation and forums.
NetBSD workshop
The document summarizes a 4-hour NetBSD workshop that will cover installing NetBSD on VirtualBox and a Raspberry Pi, cross-compiling kernels for various hardware architectures, and performing kernel updates. It lists the required hardware, software, and files to download in preparation for the workshop.
Linux io-stack-diagram v1.0
This document outlines the Linux I/O stack as of kernel version 3.3. It shows the path that I/O requests take from applications through the various layers including direct I/O, the page cache, block I/O layer, I/O scheduler, storage devices, filesystems, and network filesystems. Optional components are shown that can be stacked on top of the basic I/O stack like LVM, device mapper targets, multipath, and network transports.
Driving The Platform 2
The document provides an overview and introduction to the X64 family of systems from AMD and Intel platforms, including workstations, servers, and blades. It discusses the system specifications, components, BIOS, service processors, and connectivity options. Useful links are also provided for additional information on products, technologies, and a lab for connecting to remote systems.
Nested virtualization & PCI pass-through
This document discusses nested virtualization and PCI pass-through, which allow testing virtualized environments without requiring physical hardware. It provides information on host system configuration, including enabling VMCS shadowing and assigning devices to VMs. Configuration for OpenNebula management is also covered, such as modifying device filters and deployment tweaks to interface host devices. Resources for further information on related topics from Intel, Red Hat, and StorPool are included. The document concludes by thanking the audience and providing contact details for StorPool.
From printk to QEMU: Xen/Linux Kernel debugging
The document discusses various debugging techniques for the Linux kernel including printk, gdb, kgdb, QEMU, and kdump. It provides an overview of how to use each technique including setting up a serial console with printk, remotely debugging with gdb and kgdb, adding debugging modules to QEMU, and using kdump to collect crash dumps. The document emphasizes that printk is simple but limited while gdb and QEMU provide more advanced debugging capabilities and recommends selecting a technique based on the specific debugging needs.
XPDS16: Porting Xen on ARM to a new SOC - Julien Grall, ARM
Adding support for you new shiny board in Xen on ARM is a simple task once you get a kernel running on bare metal.
This session will cover the different steps to port Xen on ARM from the firmware to the shell prompt in DOM0.
We will give you tips on the common pitfalls when you have your hypervisor, or your DOM0 kernel crashing. We will also provide suggestion on how to debug when the console is not working.
QEMU - Binary Translation
This document provides an overview of QEMU, including its use of dynamic translation and Tiny Code Generator (TCG) to emulate target CPUs on the host system. It discusses how QEMU translates target instructions into a RISC-like intermediate representation (TCG ops), optimizes and converts them to host instructions. The document also mentions Linaro's work with QEMU and a QEMU monitor tool for debugging ARM systems emulated by QEMU.
Fosdem 17 - Towards a HVM-like Dom0 for Xen
Subtitle: Reducing the OS burden while taking advantage of new hardware features
Xen is a hypervisor using a microkernel design that allows running multiple concurrent operating systems on the same hardware. One of the key features of Xen is that it is OS agnostic, meaning that any OS (with proper support) can be used as a host. Xen has a long history going back to the 90s when it was designed and the early 2000s when it was released. As a consequence of this, many of the assumptions and virtualization techniques backed into it are now superseeded by new hardware features, that make virtualization more transparent from an OS point of view.
This talk provides an overview on the different kind of guests supported by Xen and how these new hardware features are used in order to improve and evolve them. It also describes the design and implementation of a new guest type, called PVHv2, and how it can be used as a control domain (Dom0).
Also see: https://fosdem.org/2017/schedule/event/iaas_towahvm/
Data Center Evriminde Hyper-V 2012 R2
This document outlines enhancements made to virtual machines that remove legacy devices and controllers in favor of more modern replacements. Key changes include replacing IDE and floppy disk controllers with virtual SCSI controllers, replacing BIOS with UEFI firmware to enable secure boot, replacing legacy NICs with synthetic NICs for network boot over IPv4 and IPv6, removing emulation of keyboards, mice, and video to reduce resource usage, and replacing legacy bus architectures with the more modern VMBus. It also describes how shared VHDX files can provide shared storage for guest clustering and high availability across Hyper-V hosts.
Qemu Pcie
This document discusses adding support for PCI Express and new chipset emulation to Qemu. It introduces a new Q35 chipset emulator with support for 64-bit BAR, PCIe MMCONFIG, multiple PCI buses and slots. Future work includes improving PCIe hotplug, passthrough and power management as well as switching the BIOS to SeaBIOS and improving ACPI table support. The goal is to modernize Qemu's emulation of PCI features to match capabilities of newer hardware.
More Related Content
What's hot
Look Into Libvirt Osier Yang
Libvirt is an open source library that provides a standardized interface to manage virtualization platforms. It supports various hypervisors like QEMU/KVM, Xen, VMWare and containers. It provides APIs to manage domains, networks, storage and other virtualization components in a platform-independent way. Libvirt has over 25 maintainers and receives 200-300 patches per release to support new features and improve existing functionality.
Linux-without-a-bootloader
Done as part of OMAP Tutorial Hour
http://omapedia.org/wiki/Tutorial_Hour_Topics#Aug_25th_at_8:30_am_CST_.28Central_Standard_Time.29
Server Room Configuration
This document contains a list of virtual machines and their IP addresses on different hypervisors like VMWare and Hyper-V, as well as the firewall configuration with its external and internal IP addresses and subnet. It provides an inventory of VMs running on hypervisors in the server room along with the network configuration of the firewall.
Bootloaders (U-Boot)
This document discusses bootloaders for embedded systems. It defines a bootloader as the first code executed after a system powers on or resets that is responsible for loading the operating system kernel. The document then describes the tasks of a bootloader like initializing hardware, loading binaries from storage, and providing a shell. It outlines the booting process differences between desktops and embedded systems. Finally, it focuses on the universal bootloader U-Boot, describing its directory structure, configuration, building process, and commands.
Embedding Linux On The Encore Simputer
The document discusses porting the Linux kernel to run on the Encore Simputer, an ARM-based handheld device. It describes building the kernel from source, adding support for the Simputer's hardware including memory, display and peripherals. Finally, it mentions porting the 2.6 test kernel to the Simputer and thanks the audience.
Creación de máquinas virtuales basada en kernel usando qemu y virsh
The document discusses how to install and configure different Linux distributions as virtual machines using KVM including CentOS 7, CentOS 8, Ubuntu 20.04, Fedora 20, and Debian 10. It provides instructions for downloading ISO images, creating virtual disks, and launching virtual machines with the virt-install command while specifying OS variants, RAM, vCPUs, network, graphics, and ISO image source for each.
Introduction to Modern U-Boot
U-Boot is an open source bootloader used widely in embedded systems. It initializes hardware and loads the operating system kernel. The document provides an overview of U-Boot from the user and developer perspectives, including its features, build process, file structure, and boot sequence. It also discusses modernizing efforts like adopting the driver model, device tree, and Kbuild configuration system to improve compatibility and support new platforms.
NetBSD on Google Compute Engine (en)
NetBSD can run on Google Compute Engine virtual machines. To set this up, one must install the Google Cloud SDK and create a NetBSD disk image with the vioscsi driver. This disk image is uploaded to Google Cloud Storage and used to create a virtual machine instance on Google Compute Engine. When the instance boots, the boot messages can be viewed which show the virtual devices like virtio SCSI and network being initialized and the root file system mounting from the persistent disk.
Kernel Recipes 2013 - Conditional boot
This document discusses various ways to customize a bootloader's behavior based on hardware properties detected at boot time. It presents options for tweaking Grub2 or Syslinux to select different boot options depending on characteristics like the CPU type, virtualization support, or whether the system is running in a hypervisor. Specific examples are provided of using Syslinux modules or Lua scripts to detect properties and adjust the kernel command line accordingly in order to boot different kernels optimized for the detected hardware.
U-Boot presentation 2013
U-Boot is an open source boot loader that initializes hardware and loads operating systems. It supports many CPUs and boards. The boot process involves a pre-relocation phase where U-Boot initializes hardware and copies itself to RAM, and a post-relocation phase where it finishes hardware initialization and loads the kernel or operating system. Debugging can be done before and after relocation by setting breakpoints and examining memory.
Pc bsd-intro
PC-BSD is a desktop operating system based on FreeBSD that focuses on usability. It provides a graphical installer and utilities like AppCafe for managing software packages and Warden for jail management. The latest version is 9.0 Isotope Edition and it can be installed from DVD, USB, or virtual machine images. After installation, the PC-FirstBoot utility helps with initial configuration and connecting to networks. Software is managed through the pbi package system and AppCafe front-end. System updates are also available through the Update Manager.
Wowza project
The document discusses requirements for using Wowza Media Server including purchasing version 2, checking the free Linux version, and reviewing demos on their website. It provides system requirements and lists supported file formats and features. Svnlabs will use Wowza for media streaming and management, open source players, and WordPress for user management. The document also provides links to additional Wowza documentation and forums.
NetBSD workshop
The document summarizes a 4-hour NetBSD workshop that will cover installing NetBSD on VirtualBox and a Raspberry Pi, cross-compiling kernels for various hardware architectures, and performing kernel updates. It lists the required hardware, software, and files to download in preparation for the workshop.
Linux io-stack-diagram v1.0
This document outlines the Linux I/O stack as of kernel version 3.3. It shows the path that I/O requests take from applications through the various layers including direct I/O, the page cache, block I/O layer, I/O scheduler, storage devices, filesystems, and network filesystems. Optional components are shown that can be stacked on top of the basic I/O stack like LVM, device mapper targets, multipath, and network transports.
Driving The Platform 2
The document provides an overview and introduction to the X64 family of systems from AMD and Intel platforms, including workstations, servers, and blades. It discusses the system specifications, components, BIOS, service processors, and connectivity options. Useful links are also provided for additional information on products, technologies, and a lab for connecting to remote systems.
Nested virtualization & PCI pass-through
This document discusses nested virtualization and PCI pass-through, which allow testing virtualized environments without requiring physical hardware. It provides information on host system configuration, including enabling VMCS shadowing and assigning devices to VMs. Configuration for OpenNebula management is also covered, such as modifying device filters and deployment tweaks to interface host devices. Resources for further information on related topics from Intel, Red Hat, and StorPool are included. The document concludes by thanking the audience and providing contact details for StorPool.
From printk to QEMU: Xen/Linux Kernel debugging
The document discusses various debugging techniques for the Linux kernel including printk, gdb, kgdb, QEMU, and kdump. It provides an overview of how to use each technique including setting up a serial console with printk, remotely debugging with gdb and kgdb, adding debugging modules to QEMU, and using kdump to collect crash dumps. The document emphasizes that printk is simple but limited while gdb and QEMU provide more advanced debugging capabilities and recommends selecting a technique based on the specific debugging needs.
XPDS16: Porting Xen on ARM to a new SOC - Julien Grall, ARM
Adding support for you new shiny board in Xen on ARM is a simple task once you get a kernel running on bare metal.
This session will cover the different steps to port Xen on ARM from the firmware to the shell prompt in DOM0.
We will give you tips on the common pitfalls when you have your hypervisor, or your DOM0 kernel crashing. We will also provide suggestion on how to debug when the console is not working.
QEMU - Binary Translation
This document provides an overview of QEMU, including its use of dynamic translation and Tiny Code Generator (TCG) to emulate target CPUs on the host system. It discusses how QEMU translates target instructions into a RISC-like intermediate representation (TCG ops), optimizes and converts them to host instructions. The document also mentions Linaro's work with QEMU and a QEMU monitor tool for debugging ARM systems emulated by QEMU.
Fosdem 17 - Towards a HVM-like Dom0 for Xen
Subtitle: Reducing the OS burden while taking advantage of new hardware features
Xen is a hypervisor using a microkernel design that allows running multiple concurrent operating systems on the same hardware. One of the key features of Xen is that it is OS agnostic, meaning that any OS (with proper support) can be used as a host. Xen has a long history going back to the 90s when it was designed and the early 2000s when it was released. As a consequence of this, many of the assumptions and virtualization techniques backed into it are now superseeded by new hardware features, that make virtualization more transparent from an OS point of view.
This talk provides an overview on the different kind of guests supported by Xen and how these new hardware features are used in order to improve and evolve them. It also describes the design and implementation of a new guest type, called PVHv2, and how it can be used as a control domain (Dom0).
Also see: https://fosdem.org/2017/schedule/event/iaas_towahvm/
What's hot (20)
Creación de máquinas virtuales basada en kernel usando qemu y virsh
Creación de máquinas virtuales basada en kernel usando qemu y virsh
XPDS16: Porting Xen on ARM to a new SOC - Julien Grall, ARM
XPDS16: Porting Xen on ARM to a new SOC - Julien Grall, ARM
Similar to Qemu
Data Center Evriminde Hyper-V 2012 R2
This document outlines enhancements made to virtual machines that remove legacy devices and controllers in favor of more modern replacements. Key changes include replacing IDE and floppy disk controllers with virtual SCSI controllers, replacing BIOS with UEFI firmware to enable secure boot, replacing legacy NICs with synthetic NICs for network boot over IPv4 and IPv6, removing emulation of keyboards, mice, and video to reduce resource usage, and replacing legacy bus architectures with the more modern VMBus. It also describes how shared VHDX files can provide shared storage for guest clustering and high availability across Hyper-V hosts.
Qemu Pcie
This document discusses adding support for PCI Express and new chipset emulation to Qemu. It introduces a new Q35 chipset emulator with support for 64-bit BAR, PCIe MMCONFIG, multiple PCI buses and slots. Future work includes improving PCIe hotplug, passthrough and power management as well as switching the BIOS to SeaBIOS and improving ACPI table support. The goal is to modernize Qemu's emulation of PCI features to match capabilities of newer hardware.
101 1.1 hardware settings
This document provides information about the objectives for a Junior Level Linux Certification exam, with a focus on determining and configuring hardware settings. It discusses key areas like enabling/disabling peripherals, configuring systems with or without external devices, differentiating mass storage types, and setting correct hardware IDs. It also covers tools for listing hardware information like lsusb and lspci, and concepts around sysfs, udev, hald and dbus.
P4i45 gv r5
This document provides product specifications for the ASRock P4i45GV R5.0 motherboard, including:
1. Key features such as support for Intel Pentium 4 and Celeron CPUs, Intel 845GV chipset, DDR memory, and integrated graphics.
2. Interface options including USB, audio, LAN, and expansion slots.
3. Details on BIOS features, installing the board, and updating the BIOS.
4. Cautions about overclocking and instructions for checking and updating the BIOS version.
825s72 a
This document provides instructions for installing a mainboard. It identifies the main components of the mainboard and explains how to install the processor, memory modules, and install the mainboard into a chassis. Jumpers and switches must be set correctly before installation. Optional devices such as expansion cards can then be installed along with making connections to onboard ports and headers.
QEMU and Raspberry Pi. Instant Embedded Development
QEMU is an open source machine emulator and virtualizer that can emulate various CPU architectures like x86, PowerPC, ARM, MIPS and SPARC. This document discusses extending QEMU to add support for a new I2C accelerometer hardware and simulating it in QEMU. It describes registering a new device type in QEMU to represent the accelerometer, implementing read/write callbacks to emulate the device behavior, and testing it works with a simple application both in QEMU and on a real Raspberry Pi board.
[Hackito2012] Hardware backdooring is practical
Slides of the Hackito Ergo Sum 2012 presentation.
Backdooring hardware. As in hundreads of different motherboards.
iWave Systems Techologies Pvt Ltd: Products- Software BSPs
iWave Systems Techologies Pvt Ltd: Products- Software BSPsiWave Systems Technologies Pvt Ltd, Bangalore
This document discusses iWave Systems' products and services related to embedded software development. It describes iWave's expertise in developing board support packages (BSPs) for various operating systems including Windows Embedded Compact 7, Embedded Linux, Android, and others. It also lists iWave's driver development experience and capabilities across domains like storage, display, multimedia, wireless technologies and more. Product details are provided for some of iWave's BSP offerings for Freescale platforms like i.MX6, i.MX53 and Sabre boards.What's new in Hyper-V 2012 R2
This document summarizes new features in Microsoft's Hyper-V virtualization platform presented at the Microsoft Summit 2013. Key enhancements include support for Generation 2 virtual machines, faster live migration, online VHDX resizing, improved Linux guest support, and new capabilities for guest clustering and shared storage. Legacy devices have been removed and replaced with more efficient emulations and synthetic alternatives to reduce resource usage.
925s73
This document provides an overview of the features and specifications of the M925 Series mainboard, including its Socket 478 support for Intel Pentium 4 CPUs, VIA P4M266A chipset, support for up to 2GB of DDR memory, integrated graphics, AC97 audio, expansion slots, and onboard I/O including USB, serial, parallel, PS/2, and VGA ports. The mainboard has a micro ATX form factor and is designed for performance and reliability.
101 1.1 hardware settings v2
This document provides an overview of core Linux concepts related to hardware configuration and system administration. It covers key areas like enabling and disabling peripherals, different storage device types, hardware IDs and settings. It also defines terms like BIOS, buses, ports, interrupts and DMA channels that are used to interface hardware devices with the CPU. Specific commands to view hardware information are also outlined, such as lspci and examining files in the /proc directory.
BIOS, Linux and Firmware Test Suite in-between
The document discusses BIOS, UEFI, ACPI and the Firmware Test Suite (FWTS). It defines BIOS as the Basic Input/Output System that handles hardware initialization and boot processes. UEFI intends to replace BIOS with standardized boot services. ACPI establishes interfaces for hardware configuration and power management. FWTS is a Linux tool that automates firmware testing through a suite of tests for aspects like ACPI, UEFI and power management.
Slideshare - PCIe
This document provides an overview of Linux PCI Express drivers, including PCIe topology, configuration space, driver initialization, and common port service drivers. It describes the PCIe standard for replacing older PCI standards and how PCIe preserves backward compatibility at the software level. It also outlines the device enumeration process, driver access methods, and reference resources for PCIe specifications and Linux PCIe documentation.
1.1 hardware settings v2
This document discusses system administration topics related to hardware configuration in Linux systems. It covers key areas like enabling and disabling peripherals, different storage devices, and hardware identification. It also describes hardware components like buses, ports, interrupts (IRQs), and direct memory access (DMA). Specific files like /proc/ioports, /proc/interrupts, and /proc/pci are discussed that provide information on the system's hardware configuration. Tools like lspci are also covered that can be used to view devices connected via the PCI bus.
Wi-Fi Modem For the Commodore 64
This document describes a WiFi modem device that allows a Commodore 64 to connect to the internet over WiFi. It contains an Arduino Uno, OLED display, and RN-XV WiFi module. It supports Hayes emulation, menu-driven interfaces, TCP/IP networking, and optional standalone use of the Arduino. Firmware is in beta but provides dialing, incoming calls, and configuration over WiFi. The device costs $150 and support is provided online.
VirtualOS-using-Qemu
Virtualization allows hardware to run multiple operating systems at once using software. Qemu is open source software that can emulate or virtualize systems to run one operating system on different hardware. It supports virtual hard disks that contain partitions and file systems like physical disks. Qemu can boot virtual systems via network/DHCP or disk and provides networking between virtual and host systems using tap bridges or a default gateway.
Uefi and bios
This document discusses the differences between BIOS and UEFI firmware interfaces that initialize hardware and boot operating systems on computers. BIOS has been used for over 25 years but has limitations. UEFI was created in 2005 to replace BIOS and overcome its limitations. UEFI supports larger disk sizes and partitions, a graphical interface, and can be programmed in C/C++, while BIOS is programmed in hex/assembly and has a non-graphical interface. The document recommends writing a program to test if a computer is booted using the legacy BIOS or newer UEFI firmware interface.
Computer hardware and networking by Pradeep Kudale
The document discusses PC configurations and components. It describes the typical parts that make up a PC like the motherboard, CPU, memory, storage, ports, and peripherals. It also discusses different types of PC configurations based on the processor and motherboard chipset used, such as Intel and AMD configurations. Chipsets and their functions are explained, focusing on the northbridge which connects to fast devices like RAM and graphics, and the southbridge which connects to slower peripherals.
PCI Pass-through - FreeBSD VM on Hyper-V (MeetBSD California 2016)
The slides for Kylie Liang's presentation, “PCI Pass-through - FreeBSD VM on Hyper-V”, given at MeetBSD California 2016 in Berkeley, CA.
A recording of the talk can be viewed at: http://bit.ly/2hteton.
Xw4300
The document summarizes the HP xw4300 workstation. It can be configured with various Intel processors, operating systems, graphics cards, memory, and storage options. It provides high performance for engineering, design, and other demanding applications at an affordable price compared to other workstations. It has upgradeable components and tools to optimize performance for specific workloads.
Similar to Qemu (20)
QEMU and Raspberry Pi. Instant Embedded Development
QEMU and Raspberry Pi. Instant Embedded Development
iWave Systems Techologies Pvt Ltd: Products- Software BSPs
iWave Systems Techologies Pvt Ltd: Products- Software BSPs
Computer hardware and networking by Pradeep Kudale
Computer hardware and networking by Pradeep Kudale
PCI Pass-through - FreeBSD VM on Hyper-V (MeetBSD California 2016)
PCI Pass-through - FreeBSD VM on Hyper-V (MeetBSD California 2016)
Qemu
- 2. QEMU – 自由的虛擬機器 虛擬機器？ VMWare Microsoft Virtual PC Bochs QEMU 提供完整的系統模擬 各平台支援度高 Open Source GNU License 官方網站 http://fabrice.bellard.free.fr/qemu/ 詳細的 OS Support List http://www.claunia.com/qemu/
- 3. QEMU – 模擬硬體列表 i440FX host PCI bridge and PIIX3 PCI to ISA bridge Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA extensions (hardware level, including all non standard modes). PS/2 mouse and keyboard 2 PCI IDE interfaces with hard disk and CD-ROM support Floppy disk NE2000 PCI network adapters (Realtek RTL8029) Serial ports Creative SoundBlaster 16 sound card ENSONIQ AudioPCI ES1370 sound card Adlib(OPL2) - Yamaha YM3812 compatible chip PCI UHCI USB controller and a virtual USB hub. SMP is supported with up to 255 CPUs. QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL VGA BIOS.
- 4. QEMU – on Windows 起始介面
- 5. QEMU – on Windows
- 6. QEMU – on Windows
- 7. QEMU – on Windows
- 8. QEMU – on Windows
- 9. QEMU – on XWindow 建立一個虛擬磁碟映像 (qemu-img)
- 10. QEMU – on XWindow QEMU 參數 (qemu –h)
- 11. QEMU – on XWindow 執行 qemu 模擬器 (qemu)
- 12. QEMU – on XWindow
- 13. QEMU – about Networking 可使用 DHCP 直接取得 IP Default Gateway: 10.0.2.2 DNS Server: 10.0.2.3 Samba Server: 10.0.2.4 DHCP Range: 10.0.2.15 –
- 14. QEMU – Accelerator Module KQEMU(Accelerator Module) 是一個 dynamic kernel module 提供 QEMU 更快速地存取硬體資源 效能提昇 (20% -> 50%) 可使用於 Linux 及 FreeBSD 上 for Windows 的則是 experimental versions Free to use, but close source. User-Document: http://fabrice.bellard.free.fr/qemu/kqemu-doc.htm
- 15. QEMU – Graphical Frontends Kqemu Written in Kommander for the KDE/Qt environment. http://kqemu.sourceforge.net/ Qemu-launcher Written in Perl for the Gnome/GTK environment. http://emeitner.f2o.org/projects/qemu-launcher qGUI Written in Python. http://perso.wanadoo.es/comike
- 16. QEMU – References QEMU 官方網站 http://fabrice.bellard.free.fr/qemu/ http://fabrice.bellard.free.fr/qemu/qemu-doc.html FreeOSZoo http://free.oszoo.org/download.html Debian Wiki http://wiki.debian.org.tw/index.php/QEMU Wikipedia http://zh.wikipedia.org/wiki/QEMU