KVM: PPC: Book3S PR: Enable kvmppc_get/set_one_reg_pr() for HTM registers

Browse source

We need to migrate PR KVM during transaction and userspace will use
kvmppc_get_one_reg_pr()/kvmppc_set_one_reg_pr() APIs to get/set
transaction checkpoint state. This patch adds support for that.

So far, QEMU on PR KVM doesn't fully function for migration but the
savevm/loadvm can be done against a RHEL72 guest. During savevm/
loadvm procedure, the kvm ioctls will be invoked as well.

Test has been performed to savevm/loadvm for a guest running
a HTM test program:
https://github.com/justdoitqd/publicFiles/blob/master/test-tm-mig.c

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

...

This commit is contained in:

Simon Guo 2018-05-23 15:02:12 +08:00 • committed by Paul Mackerras

parent 8f04412699

commit deeb879de9

1 changed files with 133 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

133

arch/powerpc/kvm/book3s_pr.c

View file