Re: [PATCH 11/32] KVM: MIPS: Add VZ capability

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 03/03/2017 13:37, James Hogan wrote:
> Actually I think the way I had designed KVM_CAP_MIPS_VZ is fine. I had
> defined it as an enumeration rather than a mask because it isn't
> expected you'd have more than one hardware virtualisation type able to
> run on a particular core.
> 
> Whether T&E is still supported is I think better exposed by a new
> KVM_CAP_MIPS_TE capability, indicating whether T&E is exposed when
> KVM_CAP_MIPS_VZ is also set.
> 
> It would be set to 1 on new kernels whenever T&E is supported.
> 
> For compatibility with older kernels, userland would be expected to
> determine whether T&E is present by:
> check(KVM_CAP_MIPS_VZ) == 0 || check(KVM_CAP_MIPS_TE) != 0
> 
> Old userland that doesn't check KVM_CAP_MIPS_TE would just hit an EINVAL
> from KVM_CREATE_VM if T&E isn't supported.

That's okay.

Paolo

Attachment: signature.asc
Description: OpenPGP digital signature


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux