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[doc] reorder and update installation section
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Geoffrey McRae
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doc/install.rst
423
doc/install.rst
@ -3,101 +3,24 @@
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Installation
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Installation
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############
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############
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.. _host_install:
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.. _libvirt:
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Host Application
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libvirt/QEMU Configuration:
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----------------
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---------------------------
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The Looking Glass Host application captures frames from the guest OS using a
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capture API, and sends them to the
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:ref:`Client <client_install>`—be it on the host OS (hypervisor) or another
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Virtual Machine—through a low-latency transfer protocol over shared memory.
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You can get the host program in two ways:
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- Download a pre-built binary from https://looking-glass.io/downloads
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(**recommended**)
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- Download the source code as described in :ref:`building`, then
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:ref:`build the host <host_building>`.
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.. _host_install_windows:
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Windows
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~~~~~~~
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To begin, you must first run the Windows VM with the changes noted above in
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either the :ref:`client_libvirt_configuration` or :ref:`client_qemu_commands`
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sections.
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.. _installing_the_ivshmem_driver:
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Installing the IVSHMEM Driver
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Since B6 the host installer available on the official Looking Glass website
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comes with the IVSHMEM driver and will install this for you. If you are running
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an older version of Looking Glass please refer to the documentation for your
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version.
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.. _host_install_service:
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Installing the Looking Glass Service
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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After installing your IVSHMEM driver, we can now install the Looking Glass Host
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onto our Windows Virtual Machine.
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1. First, run ``looking-glass-host-setup.exe`` as an administrator
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(:ref:`Why? <faq_host_admin_privs>`)
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2. You will be greeted by an intro screen. Press ``Next`` to continue.
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3. You are presented with the |license| license. Please read and agree to the
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license by pressing ``Agree``.
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4. You can change the install path if you wish, otherwise press ``Next`` to
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continue.
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5. You may enable or disable options on this screen to configure the
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installation. The default values are recommended for most users.
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Press ``Install`` to begin installation.
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6. After a few moments, installation will complete, and you will have a
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running instance of Looking Glass. If you experience failures, you can
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see them in the install log appearing in the middle of the window.
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7. Press ``Close`` to exit the installer.
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Command line users can run ``looking-glass-host-setup.exe /S`` to execute a
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silent install with default options selected. Further configuration from the
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command line can be done with flags. You can list all available flags by
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running ``looking-glass-host-setup.exe /?``.
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.. _client_install:
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Client
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------
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The Looking Glass Client receives frames from the :ref:`Host <host_install>` to
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display on your screen. It also handles input, and can optionally share the
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system clipboard with your guest OS through Spice.
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First you must build the client from source, see :ref:`building`. Once you have
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built the client, you can install it. Run the following as root::
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make install
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To install for the local user only, run::
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cmake -DCMAKE_INSTALL_PREFIX=~/.local .. && make install
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.. _client_libvirt_configuration:
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libvirt Configuration
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~~~~~~~~~~~~~~~~~~~~~
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This article assumes you already have a fully functional libvirt domain with
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This article assumes you already have a fully functional libvirt domain with
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PCI passthrough working on a dedicated monitor.
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PCI passthrough working.
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If you use virt-manager, this guide also applies to you, since virt-manager uses
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If you use virt-manager, this guide also applies to you, since virt-manager uses
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libvirt as its back-end.
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libvirt as its back-end.
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**If you are using QEMU directly, this does not apply to you.**
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.. _libvirt_ivshmem:
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IVSHMEM
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^^^^^^^
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Configuration
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~~~~~~~~~~~~~
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Add the following to your libvirt machine configuration inside the
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Add the following to your libvirt machine configuration inside the
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'devices' section by running ``virsh edit <VM>`` where ``<VM>`` is the name of
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'devices' section by running ``virsh edit <VM>`` where ``<VM>`` is the name of
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@ -110,92 +33,22 @@ your virtual machine.
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<size unit='M'>32</size>
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<size unit='M'>32</size>
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</shmem>
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</shmem>
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The memory size (show as 32 in the example above) may need to be
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.. note::
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adjusted as per the :ref:`Determining Memory <client_determining_memory>` section.
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If you are using QEMU directly without libvirt the following arguments are
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required instead.
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.. _client_spice_server:
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Add the following to the commands to your QEMU command line, adjusting
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the ``bus`` parameter to suit your particular configuration:
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Spice Server
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.. code:: bash
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^^^^^^^^^^^^
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If you would like to use Spice to give you keyboard and mouse input
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along with clipboard sync support, make sure you have a
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``<graphics type='spice'>`` device, then:
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- Find your ``<video>`` device, and set ``<model type='none'/>``
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- If you can't find it, make sure you have a ``<graphics>``
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device, save and edit again
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- On older libvirt versions, just disable the device in Windows
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Device Manager
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- Remove the ``<input type='tablet'/>`` device, if you have one
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- Create an ``<input type='mouse'/>`` device, if you don't already have one
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- Create an ``<input type='keyboard' bus='virtio'/>`` device to improve
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keyboard usage
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- This requires the *vioinput* driver from
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`virtio-win <https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/>`_
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to be installed in the guest
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If you want clipboard synchronization please see
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:ref:`client_clipboard_synchronization`
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.. _client_apparmor:
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AppArmor
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^^^^^^^^
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For libvirt versions before **5.10.0**, if you are using AppArmor, you
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need to add permissions for QEMU to access the shared memory file. This
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can be done by adding the following to
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``/etc/apparmor.d/local/abstractions/libvirt-qemu``::
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/dev/shm/looking-glass rw,
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then, restart AppArmor.
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.. code:: bash
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sudo systemctl restart apparmor
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.. _client_memballoon_tweak:
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Memballoon
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^^^^^^^^^^
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The VirtIO memballoon device enables the host to dynamically reclaim memory
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from your VM by growing the balloon inside the guest, reserving reclaimed
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memory. Libvirt adds this device to guests by default.
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However, this device causes major performance issues with VFIO passthrough
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setups, and should be disabled.
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Find the ``<memballoon>`` tag and set its type to ``none``:
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.. code:: xml
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<memballoon model="none"/>
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.. _client_qemu_commands:
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QEMU Commands
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~~~~~~~~~~~~~
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**If you are using libvirt/virt-manager, then this does not apply to you.**
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Add the following to the commands to your QEMU command line, adjusting
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the ``bus`` parameter to suit your particular configuration:
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.. code:: bash
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-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 \
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-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 \
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-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M
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-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M
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The memory size (shown as 32M in the example above) may need to be
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The memory size (show as 32 in the example above) may need to be
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adjusted as per :ref:`Determining Memory <client_determining_memory>` section.
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adjusted as per the :ref:`Determining Memory <libvirt_determining_memory>` section.
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.. _client_determining_memory:
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.. _libvirt_determining_memory:
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Determining Memory
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Determining Memory
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~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~~~~
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@ -216,10 +69,15 @@ For example, for a resolution of 1920x1080 (1080p):
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You must round this value up to the nearest power of two, which for the
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You must round this value up to the nearest power of two, which for the
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provided example is 32MB.
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provided example is 32MB.
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.. _client_shmfile_permissions:
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.. note::
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Increasing this value beyond what you need does not yield any performance
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improvements, it simply will block access to that RAM making it unusable by
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your system.
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Shared Memory File Permissions
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.. _libvirt_shmfile_permissions:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Permissions
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~~~~~~~~~~~
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The shared memory file used by IVSHMEM is found in ``/dev/shm/looking-glass``.
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The shared memory file used by IVSHMEM is found in ``/dev/shm/looking-glass``.
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By default, it is owned by QEMU, and does not give read/write permissions to
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By default, it is owned by QEMU, and does not give read/write permissions to
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@ -239,10 +97,56 @@ with the following::
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Change ``UID`` to the user name you will run Looking Glass with, usually your
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Change ``UID`` to the user name you will run Looking Glass with, usually your
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own.
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own.
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.. _client_clipboard_synchronization:
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.. _libvirt_spice_server:
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Keyboard/Mouse/Display/Sound
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Looking Glass makes use of the SPICE protocol to provide keyboard and mouse
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input, sound input and output, and display fallback.
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.. note::
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The default configuration that libvirt uses is not optimal and must be
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adjusted. Failure to perform these changes will cause input issues along
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with failure to support 5 button mice.
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If you would like to use Spice to give you keyboard and mouse input
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|
along with clipboard sync support, make sure you have a
|
||||||
|
``<graphics type='spice'>`` device, then:
|
||||||
|
|
||||||
|
- Find your ``<video>`` device, and set ``<model type='vga'/>``
|
||||||
|
|
||||||
|
- If you can't find it, make sure you have a ``<graphics>``
|
||||||
|
device, save and edit again.
|
||||||
|
|
||||||
|
- Remove the ``<input type='tablet'/>`` device, if you have one.
|
||||||
|
- Create an ``<input type='mouse' bus='virtio'/>`` device, if you don't
|
||||||
|
already have one.
|
||||||
|
- Create an ``<input type='keyboard' bus='virtio'/>`` device to improve
|
||||||
|
keyboard usage.
|
||||||
|
|
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|
.. note::
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|
Be sure to install the the *vioinput* driver from
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|
`virtio-win <https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/>`_
|
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|
in the guest
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|
To enable Audio support add a standard Intel HDA audio device to your
|
||||||
|
configuration as per below:
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|
.. code:: xml
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<sound model='ich9'>
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<audio id='1'/>
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|
</sound>
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<audio id='1' type='spice'/>
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If you also want clipboard synchronization please see
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|
:ref:`libvirt_clipboard_synchronization`
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.. _libvirt_clipboard_synchronization:
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Clipboard Synchronization
|
Clipboard Synchronization
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~~~~~~~~~~~~~~~~~~~~~~~~~
|
^^^^^^^^^^^^^^^^^^^^^^^^^
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Looking Glass can synchronize the clipboard between the host and guest using
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Looking Glass can synchronize the clipboard between the host and guest using
|
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the SPICE guest agent.
|
the SPICE guest agent.
|
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@ -269,3 +173,178 @@ https://www.spice-space.org/download.html#windows-binaries.
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<address type="virtio-serial" controller="0" bus="0" port="1"/>
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<address type="virtio-serial" controller="0" bus="0" port="1"/>
|
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</channel>
|
</channel>
|
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<!-- No need to add a VirtIO Serial device, it will be added automatically -->
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<!-- No need to add a VirtIO Serial device, it will be added automatically -->
|
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|
.. _libvirt_apparmor:
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|
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|
AppArmor
|
||||||
|
^^^^^^^^
|
||||||
|
|
||||||
|
For libvirt versions before **5.10.0**, if you are using AppArmor, you
|
||||||
|
need to add permissions for QEMU to access the shared memory file. This
|
||||||
|
can be done by adding the following to
|
||||||
|
``/etc/apparmor.d/local/abstractions/libvirt-qemu``::
|
||||||
|
|
||||||
|
/dev/shm/looking-glass rw,
|
||||||
|
|
||||||
|
then, restart AppArmor.
|
||||||
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|
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|
.. code:: bash
|
||||||
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|
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|
sudo systemctl restart apparmor
|
||||||
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|
||||||
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.. _libvirt_memballoon_tweak:
|
||||||
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|
Memballoon
|
||||||
|
^^^^^^^^^^
|
||||||
|
|
||||||
|
The VirtIO memballoon device enables the host to dynamically reclaim memory
|
||||||
|
from your VM by growing the balloon inside the guest, reserving reclaimed
|
||||||
|
memory. Libvirt adds this device to guests by default.
|
||||||
|
|
||||||
|
However, this device causes major performance issues with VFIO passthrough
|
||||||
|
setups, and should be disabled.
|
||||||
|
|
||||||
|
Find the ``<memballoon>`` tag and set its type to ``none``:
|
||||||
|
|
||||||
|
.. code:: xml
|
||||||
|
|
||||||
|
<memballoon model="none"/>
|
||||||
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|
||||||
|
.. _host_install:
|
||||||
|
|
||||||
|
Additional Tuning
|
||||||
|
^^^^^^^^^^^^^^^^^
|
||||||
|
|
||||||
|
Looking Glass is latency sensitive and as such it may suffer microstutters if
|
||||||
|
you have not properly tuned your virtual machine. The physical display output
|
||||||
|
of your GPU will usually not show such issues due to the nature of the hardware
|
||||||
|
but be sure that if you are experiencing issues the following tuning is
|
||||||
|
required to obtain optimal performance.
|
||||||
|
|
||||||
|
1. Do not assign all your CPU cores to your guest VM, you must at minimum
|
||||||
|
reserve two CPU cores (4 threads) for your host system to use. For example,
|
||||||
|
if you have a 6 core CPU, only assign 4 cores (8 threads) to the guest.
|
||||||
|
|
||||||
|
2. Ensure you correctly pin your VMs vCPU threads to the correct cores for your
|
||||||
|
CPU architecture.
|
||||||
|
|
||||||
|
3. If you are on a NUMA architecture (dual CPU, or early Threadripper) be sure
|
||||||
|
that you pin the vCPU threads to the physical CPU/die attached to your GPU.
|
||||||
|
|
||||||
|
4. Just because your GPU is in a slot that is physically x16 in size, does not
|
||||||
|
mean your GPU is running at x16, this is dependent on how your motherboard
|
||||||
|
is physically wired and the physical slot may be limited to x4 or x8.
|
||||||
|
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||||||
|
5. Be sure to set your CPU model type to `host-passthrough` so that your guest
|
||||||
|
operating system is aware of the acceleration features of your CPU and can
|
||||||
|
make full use of them.
|
||||||
|
|
||||||
|
6. AMD users be sure that you have the CPU feature flag `topoext` enabled or
|
||||||
|
your guest operating system will not be aware of which CPU cores are
|
||||||
|
hyper-thread pairs.
|
||||||
|
|
||||||
|
7. NVIDIA users may want to enable NvFBC as an alternative capture API in the
|
||||||
|
guest. Note that NvFBC is officially available on professional cards only
|
||||||
|
and methods to enable NvFBC on non-supported GPUs is against the NVIDIA
|
||||||
|
Capture API SDK License Agreement even though GeForce Experience and
|
||||||
|
Steam make use of it on any NVIDIA GPU.
|
||||||
|
|
||||||
|
How to perform these changes is left as an exercise to the reader.
|
||||||
|
|
||||||
|
Host Application
|
||||||
|
----------------
|
||||||
|
|
||||||
|
The Looking Glass Host application captures frames from the guest OS using a
|
||||||
|
capture API, and sends them to the
|
||||||
|
:ref:`Client <client_install>`—be it on the host OS (hypervisor) or another
|
||||||
|
Virtual Machine—through a low-latency transfer protocol over shared memory.
|
||||||
|
|
||||||
|
You can get the host program in two ways:
|
||||||
|
|
||||||
|
- Download a pre-built binary from https://looking-glass.io/downloads
|
||||||
|
(**recommended**)
|
||||||
|
|
||||||
|
- Download the source code as described in :ref:`building`, then
|
||||||
|
:ref:`build the host <host_building>`.
|
||||||
|
|
||||||
|
.. _host_install_linux:
|
||||||
|
|
||||||
|
For Linux
|
||||||
|
^^^^^^^^^
|
||||||
|
|
||||||
|
While the host application can be compiled and is somewhat functional for Linux
|
||||||
|
it is currently considered incomplete and not ready for usage. As such use at
|
||||||
|
your own risk and do not ask for support.
|
||||||
|
|
||||||
|
.. _host_install_osx:
|
||||||
|
|
||||||
|
|
||||||
|
For OSX
|
||||||
|
^^^^^^^
|
||||||
|
|
||||||
|
Currently there is no support or plans for support for OSX due to technical
|
||||||
|
limitations.
|
||||||
|
|
||||||
|
.. _host_install_windows:
|
||||||
|
|
||||||
|
For Windows
|
||||||
|
^^^^^^^^^^^
|
||||||
|
|
||||||
|
To begin, you must first run the Windows VM with the changes noted above in
|
||||||
|
either the :ref:`libvirt` section.
|
||||||
|
|
||||||
|
.. _installing_the_ivshmem_driver:
|
||||||
|
|
||||||
|
Installing the IVSHMEM Driver
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
Since B6 the host installer available on the official Looking Glass website
|
||||||
|
comes with the IVSHMEM driver and will install this for you. If you are running
|
||||||
|
an older version of Looking Glass please refer to the documentation for your
|
||||||
|
version.
|
||||||
|
|
||||||
|
.. _host_install_service:
|
||||||
|
|
||||||
|
Installing the Looking Glass Service
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
After installing your IVSHMEM driver, we can now install the Looking Glass Host
|
||||||
|
onto our Windows Virtual Machine.
|
||||||
|
|
||||||
|
1. First, run ``looking-glass-host-setup.exe`` as an administrator
|
||||||
|
(:ref:`Why? <faq_host_admin_privs>`)
|
||||||
|
2. You will be greeted by an intro screen. Press ``Next`` to continue.
|
||||||
|
3. You are presented with the |license| license. Please read and agree to the
|
||||||
|
license by pressing ``Agree``.
|
||||||
|
4. You can change the install path if you wish, otherwise press ``Next`` to
|
||||||
|
continue.
|
||||||
|
5. You may enable or disable options on this screen to configure the
|
||||||
|
installation. The default values are recommended for most users.
|
||||||
|
Press ``Install`` to begin installation.
|
||||||
|
6. After a few moments, installation will complete, and you will have a
|
||||||
|
running instance of Looking Glass. If you experience failures, you can
|
||||||
|
see them in the install log appearing in the middle of the window.
|
||||||
|
7. Press ``Close`` to exit the installer.
|
||||||
|
|
||||||
|
Command line users can run ``looking-glass-host-setup.exe /S`` to execute a
|
||||||
|
silent install with default options selected. Further configuration from the
|
||||||
|
command line can be done with flags. You can list all available flags by
|
||||||
|
running ``looking-glass-host-setup.exe /?``.
|
||||||
|
|
||||||
|
.. _client_install:
|
||||||
|
|
||||||
|
Client Application
|
||||||
|
------------------
|
||||||
|
|
||||||
|
The Looking Glass Client receives frames from the :ref:`Host <host_install>` to
|
||||||
|
display on your screen. It also handles input, and can optionally share the
|
||||||
|
system clipboard with your guest OS through Spice.
|
||||||
|
|
||||||
|
First you must build the client from source, see :ref:`building`. Once you have
|
||||||
|
built the client, you can install it. Run the following as root::
|
||||||
|
|
||||||
|
make install
|
||||||
|
|
||||||
|
To install for the local user only, run::
|
||||||
|
|
||||||
|
cmake -DCMAKE_INSTALL_PREFIX=~/.local .. && make install
|
||||||
|
|||||||
@ -183,7 +183,7 @@ should use this XML block to configure their VM for kvmfr:
|
|||||||
|
|
||||||
- The ``"size"`` tag represents the size of the shared memory device in
|
- The ``"size"`` tag represents the size of the shared memory device in
|
||||||
bytes. Once you determine the proper size of the device as per
|
bytes. Once you determine the proper size of the device as per
|
||||||
:ref:`Determining Memory <client_determining_memory>`, use the figure you
|
:ref:`Determining Memory <libvirt_determining_memory>`, use the figure you
|
||||||
got to calculate the size in bytes:
|
got to calculate the size in bytes:
|
||||||
|
|
||||||
``size_in_MB x 1024 x 1024 = size_in_bytes``
|
``size_in_MB x 1024 x 1024 = size_in_bytes``
|
||||||
|
|||||||
@ -28,7 +28,7 @@ The Clipboard is not Working
|
|||||||
|
|
||||||
- Before you can copy or paste content between the Guest and Host,
|
- Before you can copy or paste content between the Guest and Host,
|
||||||
:ref:`clipboard
|
:ref:`clipboard
|
||||||
synchronization <client_clipboard_synchronization>`
|
synchronization <libvirt_clipboard_synchronization>`
|
||||||
must be enabled.
|
must be enabled.
|
||||||
|
|
||||||
- **Did you install the Spice Guest Tools?**
|
- **Did you install the Spice Guest Tools?**
|
||||||
|
|||||||
@ -28,6 +28,7 @@ libvirt
|
|||||||
linux
|
linux
|
||||||
LookingGlass
|
LookingGlass
|
||||||
memballoon
|
memballoon
|
||||||
|
microstutters
|
||||||
mingw
|
mingw
|
||||||
mipmapping
|
mipmapping
|
||||||
modprobe
|
modprobe
|
||||||
@ -49,6 +50,7 @@ runtime
|
|||||||
submodule
|
submodule
|
||||||
submodules
|
submodules
|
||||||
systemd
|
systemd
|
||||||
|
Threadripper
|
||||||
toolchain
|
toolchain
|
||||||
tritanope
|
tritanope
|
||||||
tunable
|
tunable
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user