spectre

  1. intel-microcode and performance hit after upgrade to 7.1

    Hi, I'm seeking some advice on intel-microcode and significantly reduced pveperf result after upgrade to Proxmox 7.1. I just upgraded from 6.4 to 7.1. pveperf on 6.4, intel-microcode installed: root@pve:/# pveperf CPU BOGOMIPS: 68264.00 REGEX/SECOND: 1284037 HD SIZE: 14.46...
  2. Spectre / meltdown / ... mitigations: Host OS, VM-CPU, VM-OS, ...

    Hi, I have a question regarding required mitigation measures against spectre / meltdown / ... on different levels, i.e. what is needed where. As I understand it, already the host OS - Debian contains mitigations according to lscpu output: Vulnerability Itlb multihit: Not affected...
  3. Fix for CVE-2018-3640, CVE-2018-3639 and CVE-2018-3615/3620/3646 ?

    Hello, I wanted to ask if there is a fix for CVE-2018-3640, CVE-2018-3639 and CVE-2018-3615, CVE-2018-3620 and CVE-2018-3646 (Foreshadow and Foreshadow-NG) available. My package versions: proxmox-ve: 5.2-2 (running kernel: 4.15.18-1-pve) pve-manager: 5.2-5 (running version: 5.2-5/eb24855a)...
  4. Meltdown and Spectre for Newbie

    Hi all I am a few confused with the new vulnerabilities and want to create a POST to obtain some help from more experimented profesional and hope that this post can also help to more proxmox novice user as it's my case. I understand that there is 2 vulnerabilities, Meltdown and spectre, with 2...
  5. mir

    Meltdown and Spectre, special concerns for the virtualization industry

    Hi all, The following is a mixture of facts and speculations but never the less in my opinion means a paradigm shift for the virtualization industry! First the facts: 1) Virtualization as a driving factor first began in this decade 2) According to Intel any CPU before 2011 (Westmere) is not...
  6. BelCloud

    Meltdown/spectre cpu vulns

    Hello Is there any fix for the meltdown / spectre bugs that affect the cpus? I am assuming the qemu+intel cpu would make us vulnerable. Any ideas on mitigating the issue? Thanks
  7. fuckwit/kaiser/kpti

    With the surfacing of the Intel CPU security vulnerability, and recent patches done to the linux kernel. Sources; https://en.wikipedia.org/wiki/Kernel_page-table_isolation http://pythonsweetness.tumblr.com/post/169166980422/the-mysterious-case-of-the-linux-page-table/amp...

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