tree 8bde1e2205ef987181a1bbbb1c8f33fbd29e402d
parent 55f01c3c338166f2ca7e67ae5d6c3ae6b7ac75c4
author Serge Bazanski <serge@nexantic.com> 1616516982 +0100
committer Leopold Schabel <leo@nexantic.com> 1617296305 +0200

third_party/qemu: better explain tb_invalidate_phys_range patch

At a glance, this change looks somewhat scary, and might be interpreted
as an attempt to backdoor qemu.

This better explains what's going on, and adds an extra always-firing
assert to prove that there's nothing up our sleeves, and that this
branch should never be taken in the first place.

Test Plan: Refactor, should be covered by tests.

X-Origin-Diff: phab/D744
GitOrigin-RevId: c86638cf9e90041d2ad19d26715c7d4dd5a43e98