Trick question, I suspend the VM and break out my hex editor on the hypervisor
October 30, 2025 at 5:50 PM
Trick question, I suspend the VM and break out my hex editor on the hypervisor
Toca hilo que posiblemente le importa a 1-2 personas, pero fuck it!
Ahora mismo tengo un ordenador en casa (que consume poquito) y en el que le tengo instalado Proxmox.
¿Qué es Proxmox? Pues es lo que se llama un hypervisor o un software (o conjunto de ellos) para crear y manejar máquinas virtuales
Ahora mismo tengo un ordenador en casa (que consume poquito) y en el que le tengo instalado Proxmox.
¿Qué es Proxmox? Pues es lo que se llama un hypervisor o un software (o conjunto de ellos) para crear y manejar máquinas virtuales
Explica eso
October 27, 2025 at 7:40 PM
Toca hilo que posiblemente le importa a 1-2 personas, pero fuck it!
Ahora mismo tengo un ordenador en casa (que consume poquito) y en el que le tengo instalado Proxmox.
¿Qué es Proxmox? Pues es lo que se llama un hypervisor o un software (o conjunto de ellos) para crear y manejar máquinas virtuales
Ahora mismo tengo un ordenador en casa (que consume poquito) y en el que le tengo instalado Proxmox.
¿Qué es Proxmox? Pues es lo que se llama un hypervisor o un software (o conjunto de ellos) para crear y manejar máquinas virtuales
damn girl nice rack, what hypervisor are you running on that thing? whats the power draw? are those drives all SSD? damn , i want a rack like that
October 26, 2025 at 6:55 AM
damn girl nice rack, what hypervisor are you running on that thing? whats the power draw? are those drives all SSD? damn , i want a rack like that
pretty sure that power flicker took out the power supply in my home hypervisor, yeah.
welp.
welp.
October 26, 2025 at 5:09 AM
pretty sure that power flicker took out the power supply in my home hypervisor, yeah.
welp.
welp.
Hypervisor is purrretty hypno coded. Like let me temporarily suspend the current instance of you while I spin up another instance to play with & I may or may not let it use the same memory space while I leave it sleeping in the background just waiting for the right signal to switch states with you~
October 24, 2025 at 8:34 PM
Hypervisor is purrretty hypno coded. Like let me temporarily suspend the current instance of you while I spin up another instance to play with & I may or may not let it use the same memory space while I leave it sleeping in the background just waiting for the right signal to switch states with you~
As an example, there's a paper out there that describes how one can reduce disk traffic over NVMe by up to 90%+ by applying a 20 line patch to the linux kernel assuming one owns their own smart SSDs, can patch that firmware, and owns the whole stack up through the hypervisor
The perf gains are WILD
The perf gains are WILD
October 21, 2025 at 5:39 PM
As an example, there's a paper out there that describes how one can reduce disk traffic over NVMe by up to 90%+ by applying a 20 line patch to the linux kernel assuming one owns their own smart SSDs, can patch that firmware, and owns the whole stack up through the hypervisor
The perf gains are WILD
The perf gains are WILD
Feeling smug about my "private cloud first" strategy for my employers. The hypervisor and hardware might be American sourced, but it's installed where I can touch it, manage it and lock it down. "All our data are belong to us."
www.techpolicy.press/what-does-a-...
www.techpolicy.press/what-does-a-...
www.techpolicy.press
October 20, 2025 at 4:15 PM
Feeling smug about my "private cloud first" strategy for my employers. The hypervisor and hardware might be American sourced, but it's installed where I can touch it, manage it and lock it down. "All our data are belong to us."
www.techpolicy.press/what-does-a-...
www.techpolicy.press/what-does-a-...
Who's looking out for maintainers? @antithesis.com, that's who!
Thanks for re-upping with @opensourcepledge.com 🙏
antithesis.com/blog/2025/os...
Thanks for re-upping with @opensourcepledge.com 🙏
antithesis.com/blog/2025/os...
October 20, 2025 at 4:32 PM
Who's looking out for maintainers? @antithesis.com, that's who!
Thanks for re-upping with @opensourcepledge.com 🙏
antithesis.com/blog/2025/os...
Thanks for re-upping with @opensourcepledge.com 🙏
antithesis.com/blog/2025/os...
Microkit is a wrapper around seL4 to simplify things, but it's compiled to require the target to have hypervisor support, which QEMU won't provide as a guest. I thought it was using the hypervisor, but I see now it was emulating the CPU completely. So I need to build seL4 without hypervisor support.
October 17, 2025 at 7:02 PM
Microkit is a wrapper around seL4 to simplify things, but it's compiled to require the target to have hypervisor support, which QEMU won't provide as a guest. I thought it was using the hypervisor, but I see now it was emulating the CPU completely. So I need to build seL4 without hypervisor support.
Newer POWER CPUs have a proper hypervisor mode, just like newer ARM CPUs, but on Linux/PowerPC, there's a KVM-PS module ("Problem State" being IBMese for user mode) that runs a QEMU guest OS in user mode, and all memory management and privileged instructions get trapped and emulated by the module.
October 15, 2025 at 5:50 PM
Newer POWER CPUs have a proper hypervisor mode, just like newer ARM CPUs, but on Linux/PowerPC, there's a KVM-PS module ("Problem State" being IBMese for user mode) that runs a QEMU guest OS in user mode, and all memory management and privileged instructions get trapped and emulated by the module.
Gah, damn hypervisor error bullshit is back.
October 12, 2025 at 4:07 PM
Gah, damn hypervisor error bullshit is back.
Starting on my homelab server rack with these components for my build / dev server. Will use bhyve as a hypervisor with Linux (probably something Debian) and FreeBSD and maybe Windows guests.
October 8, 2025 at 12:41 AM
Starting on my homelab server rack with these components for my build / dev server. Will use bhyve as a hypervisor with Linux (probably something Debian) and FreeBSD and maybe Windows guests.
At Edera we've focused on delivering bare metal performance with our hypervisor while also providing great security. Derisking from the host kernel and disaggregation are super important to delivering both performance and security 🙂
September 22, 2025 at 7:02 PM
At Edera we've focused on delivering bare metal performance with our hypervisor while also providing great security. Derisking from the host kernel and disaggregation are super important to delivering both performance and security 🙂
Kommt darauf an, ob du die VM / Container features brauchst. Als reine NAS Lösung würde ich truenas wählen (sofern du mehrere gleich große Disks hast).
Ich habe für mich keinen Mehrwert zu proxmox/vmware als Hypervisor gesehen. Mit Anwendungen wie coolify.io geht auch Docker mit UI recht easy
Ich habe für mich keinen Mehrwert zu proxmox/vmware als Hypervisor gesehen. Mit Anwendungen wie coolify.io geht auch Docker mit UI recht easy
Coolify
An open-source & self-hostable Heroku / Netlify / Vercel alternative.
coolify.io
November 18, 2024 at 5:10 PM
Kommt darauf an, ob du die VM / Container features brauchst. Als reine NAS Lösung würde ich truenas wählen (sofern du mehrere gleich große Disks hast).
Ich habe für mich keinen Mehrwert zu proxmox/vmware als Hypervisor gesehen. Mit Anwendungen wie coolify.io geht auch Docker mit UI recht easy
Ich habe für mich keinen Mehrwert zu proxmox/vmware als Hypervisor gesehen. Mit Anwendungen wie coolify.io geht auch Docker mit UI recht easy
found out i could probably use a hypervisor on school pc to play games with kernel level anticheat
October 31, 2024 at 2:23 PM
found out i could probably use a hypervisor on school pc to play games with kernel level anticheat
Cool. I can run 50 Debian containers on my Proxmox hypervisor with decent resource to run a .NET executable or so in it, or 100 with barely enough memory.
Not that i need even 50, but it's cool to know that i CAN do it.
Not that i need even 50, but it's cool to know that i CAN do it.
December 8, 2024 at 9:10 PM
Cool. I can run 50 Debian containers on my Proxmox hypervisor with decent resource to run a .NET executable or so in it, or 100 with barely enough memory.
Not that i need even 50, but it's cool to know that i CAN do it.
Not that i need even 50, but it's cool to know that i CAN do it.
Oh that’s neat, I didn’t realize that. I’m assuming that there is negligible hypervisor overhead?
February 11, 2025 at 3:04 PM
Oh that’s neat, I didn’t realize that. I’m assuming that there is negligible hypervisor overhead?
Doing some more live "admin-ing" this afternoon 🙂 I am going to build a #RHEL hypervisor with image builder! #linux #opensource #itguyeric #podcast
youtube.com/live/cUiuUvi...
youtube.com/live/cUiuUvi...
RHEL as a Hypervisor | Live Coding 003
YouTube video by The IT Guy Show
youtube.com
January 23, 2025 at 10:17 PM
Doing some more live "admin-ing" this afternoon 🙂 I am going to build a #RHEL hypervisor with image builder! #linux #opensource #itguyeric #podcast
youtube.com/live/cUiuUvi...
youtube.com/live/cUiuUvi...
🔥 Summer's heating up, and so is the learning!
VMware Workstation is now free, making it the perfect time to dive into hypervisor-based reverse engineering.
Check out the free HyperDbg tutorial at OpenSecTraining:
ost2.fyi/dbg3301 (preferred)
www.youtube.com/playlist?lis...
VMware Workstation is now free, making it the perfect time to dive into hypervisor-based reverse engineering.
Check out the free HyperDbg tutorial at OpenSecTraining:
ost2.fyi/dbg3301 (preferred)
www.youtube.com/playlist?lis...
"Debuggers 3301: HyperDbg by Sina Karvandi
ost2.fyi
July 8, 2024 at 4:03 AM
🔥 Summer's heating up, and so is the learning!
VMware Workstation is now free, making it the perfect time to dive into hypervisor-based reverse engineering.
Check out the free HyperDbg tutorial at OpenSecTraining:
ost2.fyi/dbg3301 (preferred)
www.youtube.com/playlist?lis...
VMware Workstation is now free, making it the perfect time to dive into hypervisor-based reverse engineering.
Check out the free HyperDbg tutorial at OpenSecTraining:
ost2.fyi/dbg3301 (preferred)
www.youtube.com/playlist?lis...
If you have any experience with Linux, may I suggest Proxmox? It’s a Debian based hypervisor that can provide some really nifty features including PCI and USB pass through and a ZFS based file system. The community is okay as well. Windows virtual machines are much easier to manage than bare metal!
July 17, 2024 at 10:49 AM
If you have any experience with Linux, may I suggest Proxmox? It’s a Debian based hypervisor that can provide some really nifty features including PCI and USB pass through and a ZFS based file system. The community is okay as well. Windows virtual machines are much easier to manage than bare metal!
I was doing it on an Asus mini-pc with an AMD igpu. I had to dump the firmware in linux and tell the hypervisor to pass it on to the windows vm. Had to do the same with the audio driver because even though it's part of the gpu it's considered a separate pcie device.
July 25, 2024 at 3:09 PM
I was doing it on an Asus mini-pc with an AMD igpu. I had to dump the firmware in linux and tell the hypervisor to pass it on to the windows vm. Had to do the same with the audio driver because even though it's part of the gpu it's considered a separate pcie device.
I am really excited about quest client hypervisor. I really hope it runs Linux desktops as well
November 15, 2024 at 11:59 PM
I am really excited about quest client hypervisor. I really hope it runs Linux desktops as well