@_AlexGraf

Principal Engineer at Amazon. QEMU enthusiast. Enjoys working on KVM/Virtualization, Emulation, RE, Booting, Security, s390x, PowerPC, ARM. @agraf@fosstodon.org

 Bayern, Deutschland
Joined November 2018
  • Tweets629
  • Following148
  • Followers1.9K
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Alexander Graf - @[email protected] retweeted
blasty
@bl4sty6 Apr 2024
auth bypass confirmed! > INFO:paramiko.transport:Authentication (password) successful! mm_keyallowed_backdoor cmd 1 allows to override the response for mm_answer_authpassword with a custom one. if you set it to { u32(9), u8(13), u32(1), u32(0) } you can login with any pass 🤓
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Listen up, Silicon Valley… “Hardcore Engineer”
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Amazon EC2 now supports AMD SEV-SNP Amazon EC2 now supports AMD Secure Encrypted Virtualization-Secure Nested Paging (AMD SEV-SNP), a feature on AMD EPYC™ processors, on M6a, C6a, and R6a instance types. The availability of AMD SEV-SNP in EC2 furth... aws.amazon.com/about-aws/wha…
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Spot on by @joshuaseattle. Out of AWS, GCP and Azure, only AWS guarantees that their zones are 3 (or more) physically separate DCs. Turns out for Google, even a region isn’t physically separate! On paper both GCP and Azure have more zones & regions than AWS: but in practice…
Joshua Burgin@joshuaseattle26 Apr 2023
Replying to @GergelyOrosz
TLDR: Both Google and Microsoft don't guarantee that all zones are physically separate buildings or separated by at least <x> km/miles. Many of their "zones" in smaller regions are just separate buildings by the same DC facility
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A process is a purposeful bottleneck. It directly limits ownership by moving decision-making from the individual, to the organization. It limits the ownership and actions of great hires, and limits the downside of poor hires. scarletink.com/creating-proc…
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If you're a software engineer, your main job is maintaining legacy code. Why? Because building a system doesn't take long, in comparison to how long code will last, assuming the code/business are successful. Here are the 10 commandments of maintaining legacy code. 🧵
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Alexander Graf - @[email protected] retweeted
LWN.net@lwnnet16 Mar 2023
Amazon Linux 2023 released lwn.net/Articles/926332/ #LWN

Amazon Linux 2023 released

Amazon has released a new version of its vaguely Fedora-based, cloud-optimized distribution. [...]

lwn.net
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Alexander Graf - @[email protected] retweeted
@[email protected] (Alex Bennée)@stsquad9 Mar 2023
The #cfp for #kvmforum has gone out. This is a conference where you will find a lot of #qemu hackers: qemu.org/2023/03/08/kvm-foru…
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Wheee. QEMU 8.0 will support hosting Xen guests, but under Linux/KVM instead of actual Xen. qemu-project.gitlab.io/qemu/… We've already used it to find and fix guest kernel regressions that would otherwise have needed a full Xen setup to test and reproduce.
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We recently found a vulnerability affecting Hyundai and Genesis vehicles where we could remotely control the locks, engine, horn, headlights, and trunk of vehicles made after 2012. To explain how it worked and how we found it, we have @_specters_ as our mock car thief:
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QEMU is the recipient of @Microsoft FOSS Fund #12 (github.com/microsoft/foss-fu…)! Thanks to all Microsoft employees who voted for it!

Updated for FOSS Fund #12 · microsoft/foss-fund@c2dc7a3

github.com
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🎤 Act fast - submit to speak at KVM Forum by May 31! Suggested topics include: KVM and the Linux Kernel, Virtual Machine Monitors and Management, Emulation, and more. Submit here: bit.ly/3bSvEeO #kvmforum #linuxvirtualization #linux #linuxkernel #cloudinfrastructure
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Alexander Graf - @[email protected] retweeted
iPXE@ipxe16 Feb 2021
Replying to @ipxe @_AlexGraf @fagiolinux @awscloud
OK, can definitively confirm that the ENA driver does work on ARM64 in a t4g.micro instance 🙂
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.@mattklein123: "Most engineers if pushed [to] choose between having an impact that is solely company-focused (and of course that can be huge), or having impact that spans both the company [and industry through open source projects]...they'll choose open source"
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Alexander Graf - @[email protected] retweeted
UTM@UTMapp1 Dec 2020
Move over Parallels and VMware. QEMU + UTM runs Windows 10 ARM fully virtualized on Apple M1. Be warned, it’s still a bit rough but we’re working hard on it! gist.github.com/osy86/10d0ac…
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New – Use Amazon EC2 Mac Instances to Build & Test macOS, iOS, ipadOS, tvOS, and watchOS Apps - aws.amazon.com/blogs/aws/new… #AWS
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Replying to @LamensNFT @_AlexGraf
Here you go! Nice work @_AlexGraf! I put this together before you put out your v2 patch 👍 youtu.be/YZtNyoqOlss

Install Windows 10 ARM on Apple Silicon Mac Using QEMU Virtualizer Software! - Part 1

Part 1 - Do you want to install and test the ARM version of Windows...

youtube.com
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For people interested in trying out @_AlexGraf’s QEMU hvf port for Apple silicon, here is a simple UI wrapper that allows you to boot Windows 10 image directly ;) github.com/KhaosT/ACVM/relea…
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Replying to @imbushuo @_AlexGraf
HOLY SHIT, IT WORKS!!!!! THANKS FOR YOUR TIP the missing piece was the register sync and ramfb! I threw in mainline uefi and it works!
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Apple Silicon launch day is finally upon us. After months of build-up, the first Arm Macs are out. Based on the M1 SoC, we've put the 2020 Mac Mini to the test to see how Apple's SoC for laptops and small computers stacks up to the best of the rest anandtech.com/show/16252/mac…
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