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tatumroaquin/archlinux-qemu-kvm.md

Last active May 26, 2024 20:16
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QEMU-KVM Installation for Arch Linux
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archlinux-qemu-kvm.md

Arch Linux QEMU-KVM

install all necessary packages

sudo pacman -S virt-manager virt-viewer qemu qemu-arch-extra \
edk2-ovmf vde2 ebtables dnsmasq bridge-utils openbsd-netcat libguestfs

enable libvirt daemon

systemctl enable libvirtd.service
systemctl start libvirtd.service

create bridge interface

sudo nvim br10.xml

<network>
  <name>br10</name>
  <forward mode='nat'>
    <nat>
      <port start='1024' end='65535'/>
    </nat>
  </forward>
  <bridge name='br10' stp='on' delay='0'/>
  <ip address='192.168.30.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.30.50' end='192.168.30.200'/>
    </dhcp>
  </ip>
</network>

define and autostart network bridge

sudo virsh net-define br10.xml
sudo virsh net-start br10
sudo virsh net-autostart br10

enable normal user account to use KVM

sudo nvim /etc/libvirt/libvirtd.conf

unix_sock_group = "libvirt"
unix_sock_ro_perms = "0777"
unix_sock_rw_perms = "0770"

add current user to kvm and libvirt groups

sudo usermod -a -G kvm $(whoami)
sudo usermod -a -G libvirt $(whoami)
newgrp libvirt

enable nested virtulization (optional)

sudo modprobe -r kvm_intel
sudo modprobe kvm_intel nested=1
echo "options kvm-intel nested=1" | sudo tee /etc/modprobe.d/kvm-intel.conf

verify nested virtualization

systool -m kvm_intel -v | grep nested
cat /sys/module/kvm_intel/parameters/nested
@KSHMR1337
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Nice and quick guide, kudos!

@NullifyDev
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I have gotten this error from building qemu-arch-extra-git:

FAILED: libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o 
cc -m64 -mcx16 -Ilibqemu-hexagon-linux-user.fa.p -I. -I.. -Itarget/hexagon -I../target/hexagon -I../common-user/host/x86_64 -I../linux-user/include/host/x86_64 -I../linux-user/include -Ilinux-user -I../linux-user -I../linux-user/hexagon -Iqapi -Itrace -Iui -Iui/shader -I/usr/include/capstone -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/sysprof-6 -fdiagnostics-color=auto -Wall -Winvalid-pch -std=gnu11 -O2 -g -fstack-protector-strong -Wempty-body -Wendif-labels -Wexpansion-to-defined -Wformat-security -Wformat-y2k -Wignored-qualifiers -Wimplicit-fallthrough=2 -Winit-self -Wmissing-format-attribute -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls -Wshadow=local -Wstrict-prototypes -Wtype-limits -Wundef -Wvla -Wwrite-strings -Wno-missing-include-dirs -Wno-psabi -Wno-shift-negative-value -isystem /home/saturn/.cache/paru/clone/qemu-git/src/qemu/linux-headers -isystem linux-headers -iquote . -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/include -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/host/include/x86_64 -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/host/include/generic -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/tcg/i386 -Wno-unused-function -pthread -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fno-common -fwrapv -ftrivial-auto-var-init=zero -fzero-call-used-regs=used-gpr -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fPIE -isystem../linux-headers -isystemlinux-headers -DCOMPILING_PER_TARGET '-DCONFIG_TARGET="hexagon-linux-user-config-target.h"' '-DCONFIG_DEVICES="hexagon-linux-user-config-devices.h"' -MD -MQ libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o -MF libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o.d -o libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o -c ../target/hexagon/op_helper.c
during RTL pass: ira
In file included from ../target/hexagon/op_helper.c:1496:
target/hexagon/helper_funcs_generated.c.inc: In function ‘helper_V6_vgathermw’:
target/hexagon/helper_funcs_generated.c.inc:2347:1: internal compiler error: Segmentation fault
 2347 | }
      | ^
0x1905658 internal_error(char const*, ...)
	???:0
0xa9fb38 ira_soft_conflict(ira_allocno*, ira_allocno*)
	???:0
0xa74469 ira_traverse_loop_tree(bool, ira_loop_tree_node*, void (*)(ira_loop_tree_node*), void (*)(ira_loop_tree_node*))
	???:0
0xab06d4 ira_color()
	???:0
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gitlab.archlinux.org/archlinux/packaging/packages/gcc/-/issues> for instructions.
[3611/9734] Compiling C object libqemu-hexagon-linux-user.fa.p/target_hexagon_genptr.c.o
ninja: build stopped: subcommand failed.
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'qemu-git-22:9.0.0.r92.g88daa112d4-1 (qemu-git qemu-arch-extra-git)': 
error: packages failed to build: qemu-git-22:9.0.0.r92.g88daa112d4-1 (qemu-git qemu-arch-extra-git)

Does anyone know about this error? Im on Endeavour OS v6.8.7-zen1-2-zen

@KSHMR1337
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I have gotten this error from building qemu-arch-extra-git:

FAILED: libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o 
cc -m64 -mcx16 -Ilibqemu-hexagon-linux-user.fa.p -I. -I.. -Itarget/hexagon -I../target/hexagon -I../common-user/host/x86_64 -I../linux-user/include/host/x86_64 -I../linux-user/include -Ilinux-user -I../linux-user -I../linux-user/hexagon -Iqapi -Itrace -Iui -Iui/shader -I/usr/include/capstone -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/sysprof-6 -fdiagnostics-color=auto -Wall -Winvalid-pch -std=gnu11 -O2 -g -fstack-protector-strong -Wempty-body -Wendif-labels -Wexpansion-to-defined -Wformat-security -Wformat-y2k -Wignored-qualifiers -Wimplicit-fallthrough=2 -Winit-self -Wmissing-format-attribute -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls -Wshadow=local -Wstrict-prototypes -Wtype-limits -Wundef -Wvla -Wwrite-strings -Wno-missing-include-dirs -Wno-psabi -Wno-shift-negative-value -isystem /home/saturn/.cache/paru/clone/qemu-git/src/qemu/linux-headers -isystem linux-headers -iquote . -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/include -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/host/include/x86_64 -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/host/include/generic -iquote /home/saturn/.cache/paru/clone/qemu-git/src/qemu/tcg/i386 -Wno-unused-function -pthread -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fno-common -fwrapv -ftrivial-auto-var-init=zero -fzero-call-used-regs=used-gpr -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fPIE -isystem../linux-headers -isystemlinux-headers -DCOMPILING_PER_TARGET '-DCONFIG_TARGET="hexagon-linux-user-config-target.h"' '-DCONFIG_DEVICES="hexagon-linux-user-config-devices.h"' -MD -MQ libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o -MF libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o.d -o libqemu-hexagon-linux-user.fa.p/target_hexagon_op_helper.c.o -c ../target/hexagon/op_helper.c
during RTL pass: ira
In file included from ../target/hexagon/op_helper.c:1496:
target/hexagon/helper_funcs_generated.c.inc: In function ‘helper_V6_vgathermw’:
target/hexagon/helper_funcs_generated.c.inc:2347:1: internal compiler error: Segmentation fault
 2347 | }
      | ^
0x1905658 internal_error(char const*, ...)
	???:0
0xa9fb38 ira_soft_conflict(ira_allocno*, ira_allocno*)
	???:0
0xa74469 ira_traverse_loop_tree(bool, ira_loop_tree_node*, void (*)(ira_loop_tree_node*), void (*)(ira_loop_tree_node*))
	???:0
0xab06d4 ira_color()
	???:0
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gitlab.archlinux.org/archlinux/packaging/packages/gcc/-/issues> for instructions.
[3611/9734] Compiling C object libqemu-hexagon-linux-user.fa.p/target_hexagon_genptr.c.o
ninja: build stopped: subcommand failed.
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'qemu-git-22:9.0.0.r92.g88daa112d4-1 (qemu-git qemu-arch-extra-git)': 
error: packages failed to build: qemu-git-22:9.0.0.r92.g88daa112d4-1 (qemu-git qemu-arch-extra-git)

Does anyone know about this error? Im on Endeavour OS v6.8.7-zen1-2-zen

The package no longer exists. Just continue without it.

@Gadrawingz
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This installation guide is helpful, but How about full configuration?

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