linux-stable/Documentation/virt
Oliver Upton 6d8491910f KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2
KVM_CAP_DISABLE_QUIRKS is irrevocably broken. The capability does not
advertise the set of quirks which may be disabled to userspace, so it is
impossible to predict the behavior of KVM. Worse yet,
KVM_CAP_DISABLE_QUIRKS will tolerate any value for cap->args[0], meaning
it fails to reject attempts to set invalid quirk bits.

The only valid workaround for the quirky quirks API is to add a new CAP.
Actually advertise the set of quirks that can be disabled to userspace
so it can predict KVM's behavior. Reject values for cap->args[0] that
contain invalid bits.

Finally, add documentation for the new capability and describe the
existing quirks.

Signed-off-by: Oliver Upton <oupton@google.com>
Message-Id: <20220301060351.442881-5-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-21 09:28:41 -04:00
..
acrn docs: acrn: Introduce ACRN 2021-02-09 10:58:18 +01:00
kvm KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2 2022-03-21 09:28:41 -04:00
uml docs: UML: user_mode_linux_howto_v2 edits 2021-10-12 14:07:35 -06:00
guest-halt-polling.rst docs: virt: guest-halt-polling.txt convert to ReST 2020-02-12 20:10:08 +01:00
index.rst docs: acrn: Introduce ACRN 2021-02-09 10:58:18 +01:00
ne_overview.rst nitro_enclaves: Update documentation for Arm64 support 2021-09-14 11:11:20 +02:00
paravirt_ops.rst Documentation: move Documentation/virtual to Documentation/virt 2019-07-24 10:52:11 +02:00