| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
[Xen-devel] RE: Addback capability check for non-initial features
> >
> > add back missing capability check of MSR_IA32_VMX_PROCBASED_CTLS.
> >
> > Besides initial configuration, adjust_vmx_controls is responsible for
> > hardware capibility check as well. This patch add back the check.
>
> I suppose the CPU_BASED_VIRTUAL_INTR_PENDING addition is correct, for
> what
> it's worth (surely every VMX-capable CPU ever has and will support that).
>
> The change to CR8 detection looks mad and incorrect. You've inverted it so
> that CR8 exits get enabled when TPR_SHADOW is available, rather than
> when it
CR8 exit is removed later on if TPR_SHADOW exist:)
The only difference is that if there are processors that support TPR_SHADOW
only, I can check internally if this is the concern.
Current nested vmx is assuming CR8 exiting is presented to emulate L1 guest CR8
exiting. TPR_SHAOW can't trap CR8 read though cr8 write trap is OK w/ TPR
shadow.
Eventually I want to have a minimal common set of capability that is supported
by all HW and is presented to L1 guest.
> isn't, surely? And that can't be correct. I don't see how the CR8-exit
> detection and enabling is wrong, as it is already.
The original code for CR8 exit is correct too :)
Thx, Eddie
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home