On 26.07.2009, at 13:52, Avi Kivity wrote:
On 07/24/2009 07:30 PM, Alexander Graf wrote:
KVM for PowerPC only supports embedded cores at the moment.
While it makes sense to virtualize on small machines, it's even
more fun
to do so on big boxes. So I figured we need KVM for PowerPC64 as
well.
This patchset implements KVM support for Book3s_64 hosts and guest
support
for Book3s_64 and G3/G4.
To really make use of this, you will also need a modified version
of qemu
that can deal with KVM on desktop cores. I will send out patches
for those
later, but want to get feedback on the kernel side first.
In the meanwhile, use the qemu version from
http://www.powerkvm.org/powerkvm.git which already includes all
required
patches to run G3/G4 and G5 guests.
To not spam on everyone on the list, I figured I'd send this as a
git pull
request this time. If I did anything wrong, please tell me :-).
I will need some acks from ppc people. Obviously for the non-kvm
bits, but also for the kvm bits as I am not qualified to review ppc
code.
Right, FWIW Ben would actually even prefer to take the whole thing in
his tree.
- use MMU Notifiers
What's the plan here?
Implement MMU Notifiers as soon as I fully understand them? :-)
I'm aware of the basic concept, but the callbacks still seem somewhat
magical to me.
- use u64* for dirty log
Is this a userspace interface issue? if so it will need to be
addressed before merging.
Yes, on big endian having a 64-bit kernel and 32-bit userspace breaks
when dirty log is ulong*. Nobody saw this until now, because it's not
a big deal on little endian.
I sent a patch doing the qemu side of things already, but haven't went
through the kvm bits yet. Basically we can't use set_bit and test_bit
for the dirty log, because they require us to have the bitmap as ulong*.
Alex
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