[roll] Roll fuchsia [kernel][hypervisor] Use HCR_EL2.DC

Sets the HCR_EL2.DC control whenever the guest does not have MMU and
caching enabled, to force caching to be enabled during these times.
This is neccessary since no matter how much the guest cleans and
invalidates its caches, the host has cached mappings to this same
memory and this causes conflict.

In particular the zero page scanner scans using the cached mappings,
but if the guest is performing uncached writes then those writes
will not be seen, and the page might be erroneously deduped, causing
the writes to be lost.

Original-Bug: 113224
Multiply: hypervisor_tests, virtualization_core_tests
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/748445
Original-Revision: bc16d1e8db43c498824f0955a3500ba00deff635
GitOrigin-RevId: 7d5f917d856862bd76a1e720b11f2655f616192b
Change-Id: I481fd64659a34448e47b2d476697b6490951441a
1 file changed
tree: 6552ca5cc6bd1c02f8085d6586b5e6611cb944c4
  1. git-hooks/
  2. infra/
  3. third_party/
  4. cts
  5. firmware
  6. flower
  7. jiri.lock
  8. minimal
  9. prebuilts
  10. README.md
  11. stem
  12. test_durations
  13. toolchain
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.