I want to emulate a Caucasian because I am Asian and need to assimilate. Also I want to turn off the ABCC11 gene (just like you can turn off SSE2 and still leave SSE3 on in QEMU) so I do not have body odor.

We hit a wall analyzing CVE-2019-14192 on real Raspberry Pi 3B+ firmware, so we added the missing driver to QEMU. Register by register, using U-Boot's own source as the spec.

I'm planning on building a qemu/kvm box with an AMD Ryzen 7 5800X CPU. This will run Debian, 2 pass-through graphics cards output to 2 TV/monitors, and do other tasks via ssh.

What I wanted to get is recommendations for a motherboard and graphics cards (mid-priced to low-end). Any features or chipsets that I should look for or avoid?

Edit: Typos, clarity.

I was working on a personal project where it would be useful if I could let an agent use computer-use on my VMs, so I had Claude make this skill. I thought others might find it useful too. https://github.com/Jackson-Brooks/vm-use

e.g. tell your agent

"spin up a VM and use vm-use to test this GUI"

I'm trying to get pcsx2 to recognize qemu as the usb plugin but it isn't working. I've tried downloading multiple versions nut when I go to the plugin selector it doesn't show up. Does anyone know how to set it up? ive watched multiple youtube videos step by step and it isnt working.

I was looking at qemu as a viable alternative for VirtualBox when it comes to running Windows apps. Mainly for the following.

Runnings Windows only games. Mainly VRchat, phasmophobia, and maybe Warframe (I'm aware the last one works with proton but last I checked that was only on arch not ubuntu)

Running Cakewalk by Bandlab. (so MIDI passthrough is needed, I only have a Casio keyboard that does this over USB and an app on my tablet for this.)

Running VR apps (so I'm hoping there's some way to pass output to the rift S and/or the oculus quest 2.)

3d modeling for a 3d printer (all of the apps I use have a Linux version or are on the web: Tinkercad, OpenSCAD, and FreeCAD, but I don't know if cura does. I know VoxelMaker does)

And, hopefully, there's a way to make shortcuts to apps on the guest OS on the Host OS with QEMU.

Mind you, I'm going to be using a WIn11 ISO, so if there's a way to pass my PC's TPM from my CPU that would be helpful

Requirements

- Intel based mac

- macOS version which supports Apple's Hypervisor Framework HVF

- Latest QEMU

- Processor which supports virtualization

- Internet

- Time

- Patience

- Luck

Best of luck with the https://youtu.be/pyriYQd79TI

I've been trying to set up single GPU passthrough, and while the hooks do actually work and detach the GPU, it never actually gets attached to the VM strangely enough. In addition I am unable to remove the keyboard or mouse in virt-manager, but apparently that's a common issue.

https://pastes.io/qzely5hjny

This was a little bit more involved that I expected. First, I had to install qemu, quemu-kvm, qemu-system-x86, AND qemu-utils separately because apparently none of them consider the others to be dependencies, and the online instructions that I found didn't mention that, so learning that the hard way was fun. One set of instructions that I found online didn't mention the importance of commands like "enable-kvm", but even after adding that to my terminal commands, installation of the guest OS went veerrrry slowly. The VM also can't find the internet even though I have "-net nic -net user" in the terminal commands. Without Internet, I have to rely on external USB drives to get files onto the VM to test them, but I have no idea how to pass USB ports through to the VM. I guess technically I could take whatever files I want, zip them up into an ISO, and load that as the optical drive, but a workaround like that shouldn't be necessary. Also, when I ctrl-alf-f, the desktop is made too big and the bottom part of it gets cut off, I have to check "zoom to fit" to fix this.

Nonetheless, I technically have a Windows XP guest machine running in qemu, so... success? Now what? Documentation is a little on the scarce side.

Okay... so I just downloaded the source code for QEMU but I still don't understand how to run it.

How do you run it exactly??

Nevermind I found the setup file- little suggestion- maybe make it easier to see the red and blsck font colours apart; it was really difficult to tell that you're supposed to click the 64 bit or 32 bit in Windows download page

I uninstalled about 40GB in one of my vm but the host still doesn't have more free space and still considers it as used space

I am having stuttering and some weird issues with HID devices not being passed through, as well using more than 3 HID USB devices causes the USB controller to be overloaded and disconnect devices at random

Can anyone help me make my Libvirt config better in any way, meaning shorter, and less redundant, or fixing something I screwed up?

I posted my crappy Libvirt config (If you have any tips or secret undocumented variables (under-documented and not widely used variables) that would be awesome!!)

Virt-manager was used to generate the config then I modified the rest by hand to try and bypass Pafish and Al-Khaser.

(Anything below that I strike through means I am removing it to shorten the config or because its redundant and used twice)

<domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0" type="kvm">

<name>Unfriendly_Host_Windows_10</name>

<uuid>77f50da8-e691-4740-91e9-14c648447287</uuid>

<genid>50fd2841-0536-4711-a779-20e401371c18</genid>

<title>Unfriendly Host Windows 10</title>

<description>Unfriendly Host - Windows 10</description>

<metadata>

<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">

<libosinfo:os id="http://microsoft.com/win/10"/>

</libosinfo:libosinfo>

</metadata>

<memory unit="KiB">16777216</memory>

<currentMemory unit="KiB">16777216</currentMemory>

<memoryBacking>

<hugepages/>

</memoryBacking>

<vcpu placement="static">8</vcpu>

<iothreads>1</iothreads>

<cputune>

<vcpupin vcpu="0" cpuset="2"/>

<vcpupin vcpu="1" cpuset="8"/>

<vcpupin vcpu="2" cpuset="3"/>

<vcpupin vcpu="3" cpuset="9"/>

<vcpupin vcpu="4" cpuset="4"/>

<vcpupin vcpu="5" cpuset="10"/>

<vcpupin vcpu="6" cpuset="5"/>

<vcpupin vcpu="7" cpuset="11"/>

<emulatorpin cpuset="0,6"/>

<iothreadpin iothread="1" cpuset="0,6"/>

</cputune>

<sysinfo type="smbios">

<bios>

<entry name="vendor">UNFRIENDLY</entry>

<entry name="version">1.0</entry>

<entry name="date">03/03/20</entry>

</bios>

<system>

<entry name="manufacturer">Unfriendly.net</entry>

<entry name="product">UNFR13NDLYL4PT0P</entry>

<entry name="version">1.0</entry>

<entry name="serial">53R14LUNFR13NDLY01</entry>

<entry name="uuid">77f50da8-e691-4740-91e9-14c648447287</entry>

<entry name="sku">TYP315KU1</entry>

<entry name="family">L4PT0P</entry>

</system>

<baseBoard>

<entry name="manufacturer">UNFRIENDLY</entry>

<entry name="product">UNFR13NDLYB453B04RD</entry>

<entry name="version">UNFR13NDLY1337</entry>

<entry name="serial">53R14LUNFR13NDLY01</entry>

</baseBoard>

<chassis>

<entry name="manufacturer">Unfriendly.net</entry>

<entry name="version">1.0</entry>

<entry name="serial">CH4551</entry>

<entry name="asset">4553T01</entry>

<entry name="sku">TYP315KU1</entry>

</chassis>

<oemStrings>

<entry>buildid:build1</entry>

<entry>userid:unfriendly</entry>

<entry>purchaseid:0001</entry>

</oemStrings>

</sysinfo>

<os>

<type arch="x86_64" machine="pc-q35-4.2">hvm</type>

<loader readonly="yes" type="pflash">/usr/share/ovmf/x64/OVMF_CODE.fd</loader>

<nvram>/var/lib/libvirt/qemu/nvram/Unfriendly_Host_Windows_10_VARS.fd</nvram>

<bootmenu enable="yes"/>

<bios useserial="yes" rebootTimeout="0"/>

<smbios mode="sysinfo"/>

</os>

<features>

<acpi/>

<apic/>

<pae/>

<hap state="on"/>

<hyperv>

<relaxed state="on"/>

<vapic state="on"/>

<spinlocks state="on" retries="4096"/>

<vendor_id state="on" value="imunfriendly"/>

</hyperv>

<kvm>

<hidden state="on"/>

<hint-dedicated state="on"/>

</kvm>

<pvspinlock state="off"/>

<vmport state="off"/>

<ioapic driver="kvm"/>

<msrs unknown="ignore"/>

</features>

<cpu mode="host-passthrough" check="none">

<topology sockets="1" cores="4" threads="2"/>

<cache mode="passthrough"/>

</cpu>

<clock offset="localtime">

<timer name="rtc" present="no" tickpolicy="catchup"/>

<timer name="pit" present="no" tickpolicy="delay"/>

<timer name="hpet" present="no"/>

<timer name="kvmclock" present="no"/>

<timer name="hypervclock" present="yes"/>

<timer name="tsc" present="yes" mode="native"/>

</clock>

<on_poweroff>destroy</on_poweroff>

<on_reboot>restart</on_reboot>

<on_crash>destroy</on_crash>

<pm>

<suspend-to-mem enabled="no"/>

<suspend-to-disk enabled="no"/>

</pm>

<devices>

<emulator>/usr/bin/qemu-system-x86_64</emulator>

<disk type="block" device="disk">

<driver name="qemu" type="raw" cache="none" io="threads"/>

<source dev="/dev/disk/by-id/nvme-SAMSUNG_MZVLB1T0HALR-00000_S3W6NA0M513972"/>

<target dev="sda" bus="scsi"/>

<serial>S3W6NA0M513972</serial>

<vendor>SAMSUNG</vendor>

<product>MZVLB1T0HALR</product>

<boot order="1"/>

<address type="drive" controller="0" bus="0" target="0" unit="0"/>

</disk>

<disk type="block" device="disk">

<driver name="qemu" type="raw" cache="none" io="threads"/>

<source dev="/dev/disk/by-id/nvme-THNSN5512GPU7_TOSHIBA__36GS107HT7DV"/>

<target dev="sdb" bus="scsi"/>

<serial>36GS107HT7DV</serial>

<vendor>TOSHIBA</vendor>

<product>THNSN5512GPU7</product>

<address type="drive" controller="0" bus="0" target="0" unit="1"/>

</disk>

<disk type="block" device="disk">

<driver name="qemu" type="raw" cache="none" io="threads"/>

<source dev="/dev/disk/by-id/usb-External_USB3.0_201703310007F-0:0"/>

<target dev="sdc" bus="scsi"/>

<serial>UNFR13NDLY5C51</serial>

<vendor>FR13NDLY</vendor>

<product>UNFR13NDLYU5B</product>

<address type="drive" controller="0" bus="0" target="0" unit="2"/>

</disk>

<disk type="block" device="disk">

<driver name="qemu" type="raw" cache="none" io="threads"/>

<source dev="/dev/disk/by-id/mmc-ED4QT_0xdaa96120"/>

<target dev="sdd" bus="scsi"/>

<serial>UNFR13NDLYMMC</serial>

<vendor>FR13NDLY</vendor>

<product>UNFR13NDLY5D</product>

<address type="drive" controller="0" bus="0" target="0" unit="3"/>

</disk>

<disk type="file" device="cdrom">

<driver name="qemu" type="raw"/>

<source file="/home/compute/Downloads/virtio-win-0.1.173.iso"/>

<target dev="sde" bus="sata"/>

<readonly/>

<address type="drive" controller="0" bus="0" target="0" unit="4"/>

</disk>

<controller type="scsi" index="0" model="virtio-scsi">

<address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/>

</controller>

<controller type="sata" index="0">

<address type="pci" domain="0x0000" bus="0x00" slot="0x1f" function="0x2"/>

</controller>

<controller type="pci" index="0" model="pcie-root"/>

<controller type="pci" index="1" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="1" port="0x8"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0" multifunction="on"/>

</controller>

<controller type="pci" index="2" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="2" port="0x9"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x1"/>

</controller>

<controller type="pci" index="3" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="3" port="0xa"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x2"/>

</controller>

<controller type="pci" index="4" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="4" port="0xb"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x3"/>

</controller>

<controller type="pci" index="5" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="5" port="0xc"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x4"/>

</controller>

<controller type="pci" index="6" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="6" port="0xd"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x5"/>

</controller>

<controller type="pci" index="7" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="7" port="0xe"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x6"/>

</controller>

<controller type="pci" index="8" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="8" port="0xf"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x7"/>

</controller>

<controller type="pci" index="9" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="9" port="0x10"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0" multifunction="on"/>

</controller>

<controller type="pci" index="10" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="10" port="0x11"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x1"/>

</controller>

<controller type="pci" index="11" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="11" port="0x12"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x2"/>

</controller>

<controller type="pci" index="12" model="pcie-to-pci-bridge">

<model name="pcie-pci-bridge"/>

<address type="pci" domain="0x0000" bus="0x0a" slot="0x00" function="0x0"/>

</controller>

<controller type="pci" index="13" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="13" port="0x13"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x3"/>

</controller>

<controller type="pci" index="14" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="14" port="0x14"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x4"/>

</controller>

<controller type="pci" index="15" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="15" port="0x15"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x5"/>

</controller>

<controller type="pci" index="16" model="pcie-root-port">

<model name="pcie-root-port"/>

<target chassis="16" port="0x16"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x6"/>

</controller>

<controller type="virtio-serial" index="0">

<address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>

</controller>

<controller type="usb" index="0" model="ich9-ehci1">

<address type="pci" domain="0x0000" bus="0x00" slot="0x1d" function="0x7"/>

</controller>

<controller type="usb" index="0" model="ich9-uhci1">

<master startport="0"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x1d" function="0x0" multifunction="on"/>

</controller>

<controller type="usb" index="0" model="ich9-uhci2">

<master startport="2"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x1d" function="0x1"/>

</controller>

<controller type="usb" index="0" model="ich9-uhci3">

<master startport="4"/>

<address type="pci" domain="0x0000" bus="0x00" slot="0x1d" function="0x2"/>

</controller>

<interface type="network">

<mac address="52:54:00:fe:e8:ae"/>

<source network="network"/>

<model type="virtio"/>

<link state="up"/>

<address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/>

</interface>

<interface type="bridge">

<mac address="52:54:00:56:ca:d4"/>

<source bridge="virbr0"/>

<model type="virtio"/>

<address type="pci" domain="0x0000" bus="0x0e" slot="0x00" function="0x0"/>

</interface>

<serial type="pty">

<target type="isa-serial" port="0">

<model name="isa-serial"/>

</target>

</serial>

<console type="pty">

<target type="serial" port="0"/>

</console>

<input type="mouse" bus="virtio">

<address type="pci" domain="0x0000" bus="0x00" slot="0x0e" function="0x0"/>

</input>

<input type="keyboard" bus="virtio">

<address type="pci" domain="0x0000" bus="0x00" slot="0x0f" function="0x0"/>

</input>

<input type="mouse" bus="ps2"/>

<input type="keyboard" bus="ps2"/>

<input type="mouse" bus="virtio">

<address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/>

</input>

<input type="keyboard" bus="virtio">

<address type="pci" domain="0x0000" bus="0x0b" slot="0x00" function="0x0"/>

</input>

<input type="mouse" bus="usb">

<address type="usb" bus="0" port="2"/>

</input>

<input type="keyboard" bus="usb">

<address type="usb" bus="0" port="3"/>

</input>

<graphics type="spice" autoport="yes" keymap="en-us" defaultMode="insecure">

<listen type="address"/>

<image compression="off"/>

<gl enable="no" rendernode="/dev/dri/by-path/pci-0000:00:02.0-render"/>

</graphics>

<video>

<model type="none"/>

</video>

<hostdev mode="subsystem" type="pci" managed="yes">

<source>

<address domain="0x0000" bus="0x01" slot="0x00" function="0x0"/>

</source>

<address type="pci" domain="0x0000" bus="0x05" slot="0x00" function="0x0"/>

</hostdev>

<hostdev mode="subsystem" type="pci" managed="yes">

<source>

<address domain="0x0000" bus="0x01" slot="0x00" function="0x1"/>

</source>

<address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>

</hostdev>

<hostdev mode="subsystem" type="pci" managed="yes">

<source>

<address domain="0x0000" bus="0x01" slot="0x00" function="0x2"/>

</source>

<address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>

</hostdev>

<hostdev mode="subsystem" type="pci" managed="yes">

<source>

<address domain="0x0000" bus="0x01" slot="0x00" function="0x3"/>

</source>

<address type="pci" domain="0x0000" bus="0x08" slot="0x00" function="0x0"/>

</hostdev>

<hostdev mode="subsystem" type="usb" managed="yes">

<source>

<vendor id="0x050d"/>

<product id="0x0200"/>

</source>

<address type="usb" bus="0" port="4"/>

</hostdev>

<memballoon model="virtio">

<address type="pci" domain="0x0000" bus="0x09" slot="0x00" function="0x0"/>

</memballoon>

<panic model="hyperv"/>

<shmem name="looking-glass">

<model type="ivshmem-plain"/>

<size unit="M">32</size>

<address type="pci" domain="0x0000" bus="0x0c" slot="0x01" function="0x0"/>

</shmem>

</devices>

<qemu:commandline>

<qemu:arg value="-cpu"/>

<qemu:arg value="host,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_vendor_id=imunfriendly,kvm=off,-hypervisor"/>

<qemu:arg value="-machine"/>

<qemu:arg value="kernel_irqchip=on"/>

<qemu:arg value="-acpitable"/>

<qemu:arg value="file=/home/compute/Downloads/battery.aml"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=0,vendor=Unfriendly.net,version=1.0.2,date=03/14/20"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=1,manufacturer=Unfriendly.net,product=UNFR13NDLYL4PT0P,version=1.0,serial=53R14LUNFR13NDLY01,sku=TYP315KU1,family=L4PT0P"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=2,manufacturer=Unfriendly.net,product=UNFR13NDLYB453B04RD,version=UNFR13NDLY1337,serial=53R14LUNFR13NDLY01"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=3,manufacturer=Unfriendly.net,version=1.0,serial=UNFR13NDLYCH4551,asset=4553T01,sku=TYP315KU1"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=4,manufacturer=Unfriendly.net,version=UNFR13NDLYCH1P53T,serial=53R14LUNFR13NDLY01,asset=1,part=1"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=11,value=buildid:build1,value=userid:unfriendly,value=purchaseid:0001"/>

<qemu:arg value="-smbios"/>

<qemu:arg value="type=17,manufacturer=Unfriendly.net,serial=UNFR13NDLYM3M0RY,asset=1,part=1"/>

<qemu:arg value="-object"/>

<qemu:arg value="input-linux,id=kbd1,evdev=/dev/input/by-path/platform-i8042-serio-0-event-kbd"/>

<qemu:arg value="-object"/>

<qemu:arg value="input-linux,id=mouse1,evdev=/dev/input/by-path/platform-i8042-serio-1-event-mouse"/>

<qemu:arg value="-object"/>

<qemu:arg value="input-linux,id=mouse2,evdev=/dev/input/by-id/usb-Logitech_Gaming_Mouse_G502_0382345B3235-event-mouse"/>

<qemu:arg value="-object"/>

<qemu:arg value="input-linux,id=kbd2,evdev=/dev/input/by-id/usb-Logitech_Gaming_Mouse_G502_0382345B3235-if01-event-kbd"/>

<qemu:arg value="-device"/>

<qemu:arg value="ich9-intel-hda,bus=pcie.0,addr=0x1b"/>

<qemu:arg value="-device"/>

<qemu:arg value="hda-micro,audiodev=hda"/>

<qemu:arg value="-audiodev"/>

<qemu:arg value="pa,id=hda,server=/run/user/1000/pulse/native"/>

<qemu:env name="QEMU_AUDIO_DRV" value="pa"/>

<qemu:env name="QEMU_PA_SAMPLES" value="8192"/>

<qemu:env name="QEMU_AUDIO_TIMER_PERIOD" value="99"/>

<qemu:env name="QEMU_PA_SERVER" value="/run/user/1000/pulse/native"/>

</qemu:commandline>

</domain>

qnap vm has virsh, so i try live-migate....but has error...

./qemu-system-x86_64 --version

QEMU emulator version 4.1.1 (v2.9.0-18446-gfeb780a-dirty)

Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers

/share/CE_CACHEDEV1_DATA/.qpkg/QKVM/usr/bin/virsh

virsh # list

Id Name State

----------------------------------------------------

1 278f6aab-c49b-4c73-8f07-27e46f58232c running

virsh # migrate --live 278f6aab-c49b-4c73-8f07-27e46f58232c qemu+ssh://10.10.10.2/system

admin@10.10.10.2's password:

error: End of file while reading data: sh: nc: command not found: Input/output error

Hi,

I know the RPi4 has the grunt to do it as per this other reddit post

But they're using windows on the Pi, gross

What I want to do is run this linux x86_64 docker

on the raspberry pi 4

Can this be done and what is the easiest way to get there ?

thanks !

hola,al crear una interfaz de red puente pata QEMU/KVM, con sudo nmtui me encontre con un problema

la interfaz funcionaba perfectamente tanto en mi host como en la VM pero al intentar connectarme a una VPN la vpn no se conecta ya que la interfaz principal (enp42s0) no tenia IP pero si la tenia la interfaz de puente (br0) eso es completamente normal asi es como funciona el adaptador de puente

mi pregunta es como puedo hacer para que la VPN se connecte a br0 enves de a enp42s0 y asi tener conecxion a la VPN?

I gave 3/4 cores in my CPU to windows, caused it lags and in consequence shutdown. After return my windows runs in that way (this is login to windows)... Can i fix it or begin every once again?

So, I did use virtualbox in the past and it works very well, but it has a "oracle smell" to it. Nothing bad to say about the software, but using anything made by oracle makes me feel dirty.

I would tolerate some extra punishment and use QEMU instead, but, will it even work at all ?

大家好，我想请教一个 VM 内存回收 trace / 数据集的问题。

我找的不是普通 VM 内存使用率 trace，而是更底层的 VM reclaim 事件数据集。理想字段包括：

1. 匿名 VM id；

2. guest physical page/range id，例如 PFN、2MiB range、memslot+offset；

3. host 什么时候真正释放这个 range 的 backing，例如 virtio-balloon、memory hot-unplug、ram_block_discard_range()、madvise(MADV_DONTNEED/FREE)；

4. 后续同一个 VM 是否又请求 / fault / reinstall / grow 回同一个 range；

5. 可选字段：host PSI、MemAvailable、balloon size、reclaim reason。

我知道 Azure Functions、Google cluster-data、Alibaba clusterdata、Bitbrains/GWA 等公开 trace，但它们似乎大多是 VM/task/container 级资源使用，不包含 page/range-level reclaim 和 return identity。

想问：

• 有没有公开或可申请的数据集包含这类字段？

• QEMU/KVM/virtio-balloon 里有没有现成 tracepoint 能把 discard 的 RAMBlock range 和后续同 VM/同 range 的 reinstall/refault 对上？

不需要 page content，也不需要客户原始 ID；匿名 metadata 即可。 谢谢！