Sean Christopherson 59320074af KVM: Register /dev/kvm as the _very_ last thing during initialization ...

commit 2b01281273738bf2d6551da48d65db2df3f28998 upstream.

Register /dev/kvm, i.e. expose KVM to userspace, only after all other
setup has completed.  Once /dev/kvm is exposed, userspace can start
invoking KVM ioctls, creating VMs, etc...  If userspace creates a VM
before KVM is done with its configuration, bad things may happen, e.g.
KVM will fail to properly migrate vCPU state if a VM is created before
KVM has registered preemption notifiers.

Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221130230934.1014142-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-03-10 09:34:11 +01:00

..

kvm

KVM: Register /dev/kvm as the _very_ last thing during initialization

2023-03-10 09:34:11 +01:00

lib

Revert "irqbypass: do not start cons/prod when failed connect"

2021-05-15 10:26:55 +01:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00