$ git log --pretty=format:'%h %s (%cs)%d'
77b108c arm: Do not add padding alignment for hugetlbfs backed memory (2023-04-06)
(HEAD -> master)
9b46ebc Add virtio-transport option and deprecate force-pci and virtio-legacy. (2023-03-24)
2f030d2 riscv: Move serial and rtc from IO port space to MMIO area. (2023-03-24)
e17d182 riscv: Add --disable-<xyz> options to allow user disable extensions (2022-11-08)
798398f riscv: Add Zicbom extension support (2022-11-08)
b721ac0 riscv: Move reg encoding helpers to kvm-cpu-arch.h (2022-11-08)
23a8ed9 riscv: Add zihintpause extension support (2022-11-08)
ac16e94 riscv: Add Svinval extension support (2022-11-08)
76dfc0c Update UAPI headers based on Linux-6.1-rc1 (2022-11-08)
5a9cde6 hw/i8042: Fix value uninitialized in kbd_io() (2022-11-08)
...
$ git cat-file blob HEAD:README
Native Linux KVM tool
=====================
kvmtool is a lightweight tool for hosting KVM guests. As a pure virtualization
tool it only supports guests using the same architecture, though it supports
running 32-bit guests on those 64-bit architectures that allow this.
From the original announcement email:
-------------------------------------------------------
The goal of this tool is to provide a clean, from-scratch, lightweight
KVM host tool implementation that can boot Linux guest images (just a
hobby, won't be big and professional like QEMU) with no BIOS
dependencies and with only the minimal amount of legacy device
emulation.
It's great as a learning tool if you want to get your feet wet in
virtualization land: it's only 5 KLOC of clean C code that can already
boot a guest Linux image.
Right now it can boot a Linux image and provide you output via a serial
console, over the host terminal, i.e. you can use it to boot a guest
Linux image in a terminal or over ssh and log into the guest without
much guest or host side setup work needed.
--------------------------
This is the stand-alone version which does not live inside a Linux
kernel tree.
1. To check it out, clone the main git repository:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git
2. Compile the tool (for more elaborate instructions see INSTALL):
cd kvmtool && make
3. Download a raw userspace image:
wget http://wiki.qemu.org/download/linux-0.2.img.bz2 && bunzip2
linux-0.2.img.bz2
4. The guest kernel has to be built with the following configuration:
- For the default console output:
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
- For running 32bit images on 64bit hosts:
CONFIG_IA32_EMULATION=y
- Proper FS options according to image FS (e.g. CONFIG_EXT2_FS, CONFIG_EXT4_FS).
- For all virtio devices listed below:
CONFIG_VIRTIO=y
CONFIG_VIRTIO_RING=y
CONFIG_VIRTIO_PCI=y
- For virtio-blk devices (--disk, -d):
CONFIG_VIRTIO_BLK=y
- For virtio-net devices ([--network, -n] virtio):
CONFIG_VIRTIO_NET=y
- For virtio-9p devices (--virtio-9p):
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_9P_FS=y
- For virtio-balloon device (--balloon):
CONFIG_VIRTIO_BALLOON=y
- For virtio-console device (--console virtio):
CONFIG_VIRTIO_CONSOLE=y
- For virtio-rng device (--rng):
CONFIG_HW_RANDOM_VIRTIO=y
- For vesa device (--sdl or --vnc):
CONFIG_FB_VESA=y
5. And finally, launch the hypervisor:
./lkvm run --disk linux-0.2.img \
--kernel ../../arch/x86/boot/bzImage \
or
sudo ./lkvm run --disk linux-0.2.img \
--kernel ../../arch/x86/boot/bzImage \
--network virtio
The tool has been written by Pekka Enberg, Cyrill Gorcunov, Asias He,
Sasha Levin and Prasad Joshi. Special thanks to Avi Kivity for his help
on KVM internals and Ingo Molnar for all-around support and encouragement!
See the following thread for original discussion for motivation of this
project:
http://thread.gmane.org/gmane.linux.kernel/962051/focus=962620
Another detailed example can be found in the lwn.net article:
http://lwn.net/Articles/658511/
Contributing
------------
Please send patches for kvmtool to kvm@vger.kernel.org, in the usual git
patch format, including "kvmtool" in the mail subject. "kvmtool" can be
added automatically by issuing the command
git config format.subjectprefix "PATCH kvmtool"
in the git repository.
Maintainers
-----------
kvmtool is maintained by Will Deacon <will@kernel.org> and Julien Thierry
<julien.thierry.kdev@gmail.com>.
# heads (aka `branches'):
$ git for-each-ref --sort=-creatordate refs/heads \
--format='%(HEAD) %(refname:short) %(subject) (%(creatordate:short))'
aarch64/vcpu-pinning vcpu pinning (2023-08-20)
aarch64/psci fixup! Add helpers to pause the VM from vCPU thread (2023-06-15)
* master arm: Do not add padding alignment for hugetlbfs backed memory (2023-04-06)
# tags:
$ git for-each-ref --sort=-creatordate refs/tags \
--format='%(refname:short) %(subject) (%(creatordate:short))'
# no tags, yet...
# associated public inboxes:
# (number on the left is used for dev purposes)
3070 kvm
573 kvmarm
281 linux-arm-kernel
200 lkml
161 kvm-ppc
48 qemu-devel
47 virtualization
36 linux-mips
28 netdev
17 linux-perf-users
16 stable
12 u-boot
10 linux-fsdevel
10 dri-devel
9 linuxppc-dev
8 linux-devicetree
8 buildroot
7 linux-riscv
7 dpdk-dev
7 linux-doc
7 git
7 intel-gfx
6 linux-wireless
6 linux-s390
6 qemu-riscv
5 bpf
5 linux-nfs
5 xen-devel
5 linux-api
5 nvdimm
5 virtio-fs
4 linux-nvdimm
4 linux-media
4 linux-scsi
4 linux-btrfs
4 selinux
4 linux-bluetooth
4 linux-remoteproc
4 containers
4 linux-coco
4 openembedded-core
4 linux-um
4 virtio-dev
3 linux-samsung-soc
3 linux-mtd
3 linux-block
3 netfilter-devel
3 linux-arm-msm
3 linux-mm
3 alsa-devel
3 linux-pci
3 linux-serial
3 linux-omap
3 linux-arch
3 platform-driver-x86
3 target-devel
3 openembedded-devel
2 linux-xfs
2 linux-mediatek
2 linux-efi
2 linux-integrity
2 linux-amlogic
2 fstests
2 linux-pm
2 linux-usb
2 linux-rdma
2 linux-ext4
2 linux-security-module
2 linux-m68k
2 io-uring
2 linux-mmc
2 linux-unionfs
2 linux-audit
2 linux-dash
2 linux-kbuild
2 linux-can
2 linux-rockchip
2 linux-raid
2 phone-devel
2 linux-hardening
2 dash
2 dm-devel
2 linux-sctp
2 lustre-devel
2 linux-sh
2 kernel-janitors
2 linux-staging
2 yocto-meta-freescale
2 linux-patches
2 batman
2 ecryptfs
2 devicetree-compiler
2 lvs-devel
1 linux-fscrypt
1 cocci
1 linux-nvme
1 live-patching
1 linux-crypto
1 linux-acpi
1 linux-edac
1 linux-cifs
1 linux-erofs
1 linux-iommu
1 linux-snps-arc
1 linux-hwmon
1 linux-rtc
1 linux-input
1 driverdev-devel
1 linux-renesas-soc
1 linux-kselftest
1 kernel-hardening
1 linux-clk
1 linux-iio
1 linux-gpio
1 dmaengine
1 linux-next
1 linux-parisc
1 linux-leds
1 linux-f2fs-devel
1 linux-modules
1 kernelnewbies
1 linux-rt-users
1 linux-sgx
1 linux-ide
1 linux-watchdog
1 linux-trace-devel
1 linux-hyperv
1 workflows
1 rcu
1 linux-i3c
1 util-linux
1 linux-spdx
1 linux-wpan
1 ksummit-discuss
1 wireguard
1 backports
1 linux-kernel-mentees
1 linux-csky
1 linux-man
1 amd-gfx
1 tpmdd-devel
1 linux-firmware
1 cip-dev
1 linux-spi
1 linux-i2c
1 linux-bcache
1 linux-sparse
1 mm-commits
1 linux-pwm
1 linux-tegra
1 lttng-dev
1 linux-fpga
1 ceph-devel
1 xdp-newbies
1 openbmc
1 keyrings
1 linux-fbdev
1 linux-cxl
1 soc
1 ocfs2-devel
1 rust-for-linux
1 ath10k
1 ath11k
1 nouveau
1 linux-phy
1 sparclinux
1 linux-sunxi
1 mptcp
1 regressions
1 ksummit
1 b43-dev
1 historical-speck
1 linux-nfc
1 linux-bcachefs
1 ath9k-devel
1 ntfs3
1 llvm
1 fio
1 iwd
1 ell
1 ofono
1 ltp
1 yocto
1 yocto-toaster
1 yocto-meta-arm
1 yocto-docs
1 bitbake-devel
1 yocto-meta-virtualization
1 chrome-platform
1 ntb
1 yocto-meta-ti
1 yocto-meta-arago
1 outreachy
1 xenomai
1 damon
1 asahi
1 openrisc
1 intel-wired-lan
1 kexec
1 loongarch
1 imx
1 ath12k
1 b4-sent
1 linux-trace-kernel
1 oe-linux-nfc
1 oe-kbuild-all
1 oe-chipsec
1 intel-xe
1 virtio-comment
1 v9fs
1 poky
1 linux-ia64
1 cluster-devel
1 grub-devel
1 kbd
1 autofs
1 cpufreq
1 dccp
1 cgroups
1 devicetree-spec
1 initramfs
1 hail-devel
1 kvm-ia64
1 linux-8086
1 kernel-testers
1 linux-alpha
1 linux-btrace
1 linux-embedded
1 linux-hams
1 linux-hexagon
1 linux-hotplug
1 linux-laptop
1 linux-sound
1 trinity
1 reiserfs-devel
1 linux-metag
1 linux-x25
1 linux-nilfs
1 netfilter
1 linux-oxnas
1 u-boot-amlogic
1 lm-sensors
1 lvm-devel
1 acpica-devel
1 perfbook
1 smatch
1 ../../../../../../../fuego
1 ../../../../../../../wireless-regdb
1 ../../../../../../../igt-dev
1 ../../../../../../../powertop
git clone https://yhbt.net/lore/pub/scm/linux/kernel/git/oupton/kvmtool.git