KVM fixes for 3.11

On the x86 side, there are some optimizations and documentation updates.
The big ARM/KVM change for 3.11, support for AArch64, will come through
Catalin Marinas's tree.  s390 and PPC have misc cleanups and bugfixes.

There is a conflict due to "s390/pgtable: fix ipte notify bit" having
entered 3.10 through Martin Schwidefsky's s390 tree.  This pull request
has additional changes on top, so this tree's version is the correct one.
KVM: PPC: Ignore PIR writes

While technically it's legal to write to PIR and have the identifier changed,
we don't implement logic to do so because we simply expose vcpu_id to the guest.

So instead, let's ignore writes to PIR. This ensures that we don't inject faults
into the guest for something the guest is allowed to do. While at it, we cross
our fingers hoping that it also doesn't mind that we broke its PIR read values.

Signed-off-by: Alexander Graf <agraf@suse.de>
1 file changed