[1.12] Update amd x86_64 cpu features #5318
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Nested virtualization is now disabled and some cpu features/MSRs now should be marked as host only. These cpu features/MSRs are described the AMD reference manual at "SVM Revision and Feature Identification" section. Signed-off-by: Egor Lazarchuk <[email protected]>
Now this MSR is host only and not available in the guest. Check AMD reference manual at "SVM Revision and Feature Identification" section for more information. Signed-off-by: Egor Lazarchuk <[email protected]>
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Codecov ReportAll modified and coverable lines are covered by tests ✅
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## firecracker-v1.12 #5318 +/- ##
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Coverage 83.07% 83.07%
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Files 250 250
Lines 26893 26893
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Hits 22342 22342
Misses 4551 4551
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zulinx86
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Jul 22, 2025
JackThomson2
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Jul 22, 2025
roypat
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Backport of #5314
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CONTRIBUTING.md.PR Checklist
tools/devtool checkbuild --allto verify that the PR passesbuild checks on all supported architectures.
tools/devtool checkstyleto verify that the PR passes theautomated style checks.
how they are solving the problem in a clear and encompassing way.
in the PR.
CHANGELOG.md.Runbook for Firecracker API changes.
integration tests.
TODO.rust-vmm.Nested virtualization is now disabled and some cpu features/MSRs now
should be marked as host only.
These cpu features/MSRs are described the AMD reference manual at
"SVM Revision and Feature Identification" section.
Signed-off-by: Egor Lazarchuk [email protected]