refs/heads/for-upstream/pkvm-pvmfw-loader - linux

commit: f8fa3c755ccfb0535c92a729fdc8f0c83739957a
[log]
author: Keir Fraser <keirf@google.com>
Thu May 16 12:59:16 2024 +0000
committer: Fuad Tabba <tabba@google.com>
Thu Aug 08 11:07:35 2024 +0100
tree: a38b64e15129f1ecd73fdabf59999c298fd4208e
parent: 744d45116b36be5016e57a25c8f7c99861bf235a [diff]

KVM: arm64: BUG on failure to drop host privileges

In pKVM mode we should never fail to drop host privileges but, if
we do, we could be in an inconsistent state:
1. static key is flipped but we haven't completed initialisation
2. only a subset of CPUs may have dropped host privileges

In this scenario, BUG is the only sensible action.

Signed-off-by: Keir Fraser <keirf@google.com>

arch/arm64/kvm/pkvm.c[diff]

1 file changed

tree: a38b64e15129f1ecd73fdabf59999c298fd4208e