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Summary of the PR
This is needed to influence guest Linux to use physical address mode for MSIs (which it does by default when x2apic is enabled), which allows to support virtual interrupt injections in MSHV driver and thus improve overall VirtIO throughput.
Requirements
Before submitting your PR, please make sure you addressed the following
requirements:
git commit -s
), and the commit message has max 60 characters for thesummary and max 75 characters for each description line.
test.
Release" section of CHANGELOG.md (if no such section exists, please create one).
unsafe
code is properly documented.