wikiAMD-V virtualization function
AMD-virtualization (AMD-V) is the implementation of a Secure Virtual Machine from AMD. Developed under the codename „Pacifica“, AMD first launched these features under the name AMD Secure Virtual Machine (SVM). The corresponding CPU-flag is also called svm.
BIOS settings
Similar to the Overview of the Intel VT Virtualization Features, the AMD-V / SVM can be activated or deactivated in the BIOS.
However, up to Linux Kernel version 6.6, /proc/cpuinfo showed the CPU flag svm regardless of whether the function was activated or not in the BIOS. A patch by Paolo Bonzini on September 21st, 2023 solves the problem.[1][2]
References
- ↑ x86/cpu: Clear SVM feature if disabled by BIOS (git.kernel.org, 22.09.2023)
- ↑ Linux Will Finally Indicate Via /proc/cpuinfo If AMD SVM Virtualization Is Disabled (www.phoronix.com, 02.10.2023)
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Author: Werner Fischer Werner Fischer, working in the Knowledge Transfer team at Thomas-Krenn, completed his studies of Computer and Media Security at FH Hagenberg in Austria. He is a regular speaker at many conferences like LinuxTag, OSMC, OSDC, LinuxCon, and author for various IT magazines. In his spare time he enjoys playing the piano and training for a good result at the annual Linz marathon relay.
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Translator: Alina Ranzinger Alina has been working at Thomas-Krenn.AG since 2024. After her training as multilingual business assistant, she got her job as assistant of the Product Management and is responsible for the translation of texts and for the organisation of the department.
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