Kernel Paravirtualized Guest Support

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Kernel Support for Paravirtualized Guest OS

    https://s3-us-west-2.amazonaws.com/www-cse-public/ugrad/thesis/ShibinXu.pdf
    hypervisor (i.e. the kernel) and the guest OS are codesigned for efficiency and simplicity. Hence, xkvisor only supports guest OSes that are implemented on top of the interface provided by the kernel.

Use a Paravirtualized Kernel in Linux Guests

    https://pubs.vmware.com/ws65_ace25/ws_user/newguest.6.21.html
    If you have a VMware VMI (Virtual Machine Interface) enabled kernel in the guest operating system, you will see improved performance if you enable paravirtual support in the virtual machine.

2.2.34 Paravirtualized Drivers in a Hardware Virtualized Guest

    https://docs.oracle.com/en/operating-systems/oracle-linux/6/relnotes6.9/section_lsx_t3x_jp.html
    The Unbreakable Enterprise Kernel adds support for PV drivers in an HVM guest (PVHVM) on Oracle VM. The default is to present only PV drivers when running in an HVM guest.

7.11. Converting to Paravirtualized Guests or Installing ...

    https://docs.oracle.com/cd/E27300_01/E27309/html/vmusg-vm-pv.html
    Converting to Paravirtualized Guests or Installing Paravirtualized Drivers; Prev ... These drivers enable high performance throughput of I/O operations in guest operating systems on top of the Oracle VM Server hosts. ... Download the paravirtualized kernel on the virtual machine, for example for an Oracle Enterprise Linux 5.5 64-bit guest ...

Which kernel to use for paravirtualized guest O ...

    https://community.oracle.com/thread/2236545
    Aug 16, 2011 · OracleVM 2.2 (actually 2.1.2 for that matter) has support for HugePages in HVM and PVHVM guests (unfortunately still not in PVM guests). Also take in mind whether or not the use of superpages for guest memory is advisable to use for your guests. And yes, the UEK kernel has support …

Paravirtualization (PV) - Xen

    https://wiki.xenproject.org/wiki/Paravirtualization_(PV)
    Xen Project Guest (DomU) support for Linux was introduced into the Linux kernel with version 2.6.24, whereas Xen Project Control Domain (Dom0) support was added from version 2.6.37. The key drivers have been added to Linux v 3.0 and since additional drivers …

DomU Support for Xen - Xen

    https://wiki.xen.org/wiki/DomU_Support_for_Xen
    PV on HVM is a new type of Xen Project Hypervisor guest support that exploits hardware nested paging while enabling PV interfaces for IO. Depending on the workload PV on HVM guests might be faster or slower than regular PV guests. See Xen_Linux_PV_on_HVM_drivers for more information.

Tuning Kernel - KVM

    https://www.linux-kvm.org/page/Tuning_Kernel
    - PARAVIRT (Location : Processor type and features-> Paravirtualized guest support) This changes the kernel so it can modify itself when it is run under a hypervisor, potentially improving performance significantly over full virtualization. However, when run without a hypervisor the kernel is theoretically slower and slightly larger.

Linux kernel configuration for VMware VMware Communities

    https://communities.vmware.com/thread/607686
    I would like to ask information on custom kernel configuration for optimal performance as a VMware guest. First of all, I guess I should enable "Processor type and features / Linux guest support". Then, entering into the "Linux guest support" submenu, I would like to ask if I should enable any of the followings settings: Enable ...

Paravirtualization - Wikipedia

    https://en.wikipedia.org/wiki/Paravirtualization
    The paravirt-ops code (often shortened to pv-ops) was included in the mainline Linux kernel as of the 2.6.23 version, and provides a hypervisor-agnostic interface between the hypervisor and guest kernels. Distribution support for pv-ops guest kernels appeared starting with Ubuntu 7.04 and RedHat 9.



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