Re: Standardizing an MSR or other hypercall to get an RNG seed?

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

 



Il 18/09/2014 23:54, David Hepkin ha scritto:
> The chief advantage I see to using a hypercall based mechanism is
> that it would work across more architectures.  MSR's and CPUID's are
> specific to X86.  If we ever wanted this same mechanism to be
> available on an architecture that doesn't support MSR's,  a hypercall
> based approach would allow for a more consistent mechanism across the
> architectures.
> 
> I agree, though, that converging on a common hypercall interface that
> would be implemented by all of the hypervisors would likely be much
> harder to achieve.

There are differences between architectures at the hypercall level,
starting with the calling convention.  So I don't think it makes much
sense to use a hypercall.

Paolo
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[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