[RFC PATCH v4 6/6] kvmppc: Support reset of secure guest

Bharata B Rao bharata at linux.ibm.com
Tue Jul 9 20:06:04 AEST 2019

On Mon, Jun 17, 2019 at 02:06:32PM +1000, Paul Mackerras wrote:
> On Tue, May 28, 2019 at 12:19:33PM +0530, Bharata B Rao wrote:
> > Add support for reset of secure guest via a new ioctl KVM_PPC_SVM_OFF.
> > This ioctl will be issued by QEMU during reset and in this ioctl,
> > we ask UV to terminate the guest via UV_SVM_TERMINATE ucall,
> > reinitialize guest's partitioned scoped page tables and release all
> > HMM pages of the secure guest.
> > 
> > After these steps, guest is ready to issue UV_ESM call once again
> > to switch to secure mode.
> Since you are adding a new KVM ioctl, you need to add a description of
> it to Documentation/virtual/kvm/api.txt.

Adding in the next version.


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