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Merge tag 'kvm-ppc-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD

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KVM PPC update for 5.7

* Add a capability for enabling secure guests under the Protected
  Execution Framework ultravisor

* Various bug fixes and cleanups.
This commit is contained in:
Paolo Bonzini
2020-03-31 10:45:49 -04:00
parent cf39d37539 9a5788c615
commit 4f4af841f0
25 changed files with 205 additions and 122 deletions
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17
Documentation/virt/kvm/api.rst
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@@ -5785,6 +5785,23 @@ it hard or impossible to use it correctly. The availability of
KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 signals that those bugs are fixed.
Userspace should not try to use KVM_CAP_MANUAL_DIRTY_LOG_PROTECT.
7.19 KVM_CAP_PPC_SECURE_GUEST
------------------------------
:Architectures: ppc
This capability indicates that KVM is running on a host that has
ultravisor firmware and thus can support a secure guest. On such a
system, a guest can ask the ultravisor to make it a secure guest,
one whose memory is inaccessible to the host except for pages which
are explicitly requested to be shared with the host. The ultravisor
notifies KVM when a guest requests to become a secure guest, and KVM
has the opportunity to veto the transition.
If present, this capability can be enabled for a VM, meaning that KVM
will allow the transition to secure guest mode. Otherwise KVM will
veto the transition.
8. Other capabilities.
======================