Re: [PATCH v3 1/3] KVM: SVM: use vmsave/vmload for saving/restoring additional host state

[Paolo Bonzini]

On 05/01/21 18:20, Sean Christopherson wrote:
> This VMLOAD needs the "handle fault on reboot" goo.  Seeing the code, I think
> I'd prefer to handle this in C code, especially if Paolo takes the svm_ops.h
> patch[*].  Actually, I think with that patch it'd make sense to move the
> existing VMSAVE+VMLOAD for the guest into svm.c, too.  And completely unrelated,
> the fault handling in svm/vmenter.S can be cleaned up a smidge to eliminate the
> JMPs.
>
> Paolo, what do you think about me folding these patches into my series to do the
> above cleanups?  And maybe sending a pull request for the end result?  (I'd also
> like to add on a patch to use the user return MSR mechanism for MSR_TSC_AUX).

I have queued that part already, so Mike can rebase on top of kvm/queue.

Paolo

> [*]https://lkml.kernel.org/r/20201231002702.2223707-8-seanjc@xxxxxxxxxx