search for: xen_rnd

Displaying 15 results from an estimated 15 matches for "xen_rnd".

Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
4
Standardizing an MSR or other hypercall to get an RNG seed?
...l to early to do: h = cpuid(HYPERVIOR_SIGNATURE) if (h == KVMKVMKVM) { if (cpuid(kvm_features) & kvm_rnd) rdmsr(kvm_rnd) else (h == HyperV) { if (cpuid(hv_features) & hv_rnd) rdmsr(hv_rnd) else (h == XenXenXen) { if (cpuid(xen_features) & xen_rnd) rdmsr(xen_rnd) } ? -- Gleb.
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
4
Standardizing an MSR or other hypercall to get an RNG seed?
...l to early to do: h = cpuid(HYPERVIOR_SIGNATURE) if (h == KVMKVMKVM) { if (cpuid(kvm_features) & kvm_rnd) rdmsr(kvm_rnd) else (h == HyperV) { if (cpuid(hv_features) & hv_rnd) rdmsr(hv_rnd) else (h == XenXenXen) { if (cpuid(xen_features) & xen_rnd) rdmsr(xen_rnd) } ? -- Gleb.
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
3
Standardizing an MSR or other hypercall to get an RNG seed?
...MKVM) { > > if (cpuid(kvm_features) & kvm_rnd) > > rdmsr(kvm_rnd) > > else (h == HyperV) { > > if (cpuid(hv_features) & hv_rnd) > > rdmsr(hv_rnd) > > else (h == XenXenXen) { > > if (cpuid(xen_features) & xen_rnd) > > rdmsr(xen_rnd) > > } > > > > If we need to do chase loops, especially not so... > What loops exactly? As a non native English speaker I fail to understand if your answer is "yes" or "no" ;) -- Gleb.
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
3
Standardizing an MSR or other hypercall to get an RNG seed?
...MKVM) { > > if (cpuid(kvm_features) & kvm_rnd) > > rdmsr(kvm_rnd) > > else (h == HyperV) { > > if (cpuid(hv_features) & hv_rnd) > > rdmsr(hv_rnd) > > else (h == XenXenXen) { > > if (cpuid(xen_features) & xen_rnd) > > rdmsr(xen_rnd) > > } > > > > If we need to do chase loops, especially not so... > What loops exactly? As a non native English speaker I fail to understand if your answer is "yes" or "no" ;) -- Gleb.
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
2
Standardizing an MSR or other hypercall to get an RNG seed?
...& kvm_rnd) > >>> rdmsr(kvm_rnd) > >>> else (h == HyperV) { > >>> if (cpuid(hv_features) & hv_rnd) > >>> rdmsr(hv_rnd) > >>> else (h == XenXenXen) { > >>> if (cpuid(xen_features) & xen_rnd) > >>> rdmsr(xen_rnd) > >>> } > >>> > >> > >> If we need to do chase loops, especially not so... > >> > > What loops exactly? As a non native English speaker I fail to understand > > if your answer is "yes&quo...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
2
Standardizing an MSR or other hypercall to get an RNG seed?
...& kvm_rnd) > >>> rdmsr(kvm_rnd) > >>> else (h == HyperV) { > >>> if (cpuid(hv_features) & hv_rnd) > >>> rdmsr(hv_rnd) > >>> else (h == XenXenXen) { > >>> if (cpuid(xen_features) & xen_rnd) > >>> rdmsr(xen_rnd) > >>> } > >>> > >> > >> If we need to do chase loops, especially not so... > >> > > What loops exactly? As a non native English speaker I fail to understand > > if your answer is "yes&quo...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
3
Standardizing an MSR or other hypercall to get an RNG seed?
...msr(kvm_rnd) > >> >>> else (h == HyperV) { > >> >>> if (cpuid(hv_features) & hv_rnd) > >> >>> rdmsr(hv_rnd) > >> >>> else (h == XenXenXen) { > >> >>> if (cpuid(xen_features) & xen_rnd) > >> >>> rdmsr(xen_rnd) > >> >>> } > >> >>> > >> >> > >> >> If we need to do chase loops, especially not so... > >> >> > >> > What loops exactly? As a non native English speaker...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
3
Standardizing an MSR or other hypercall to get an RNG seed?
...msr(kvm_rnd) > >> >>> else (h == HyperV) { > >> >>> if (cpuid(hv_features) & hv_rnd) > >> >>> rdmsr(hv_rnd) > >> >>> else (h == XenXenXen) { > >> >>> if (cpuid(xen_features) & xen_rnd) > >> >>> rdmsr(xen_rnd) > >> >>> } > >> >>> > >> >> > >> >> If we need to do chase loops, especially not so... > >> >> > >> > What loops exactly? As a non native English speaker...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
0
Standardizing an MSR or other hypercall to get an RNG seed?
...R_SIGNATURE) > if (h == KVMKVMKVM) { > if (cpuid(kvm_features) & kvm_rnd) > rdmsr(kvm_rnd) > else (h == HyperV) { > if (cpuid(hv_features) & hv_rnd) > rdmsr(hv_rnd) > else (h == XenXenXen) { > if (cpuid(xen_features) & xen_rnd) > rdmsr(xen_rnd) > } > If we need to do chase loops, especially not so... -hpa
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
0
Standardizing an MSR or other hypercall to get an RNG seed?
...if (cpuid(kvm_features) & kvm_rnd) >>> rdmsr(kvm_rnd) >>> else (h == HyperV) { >>> if (cpuid(hv_features) & hv_rnd) >>> rdmsr(hv_rnd) >>> else (h == XenXenXen) { >>> if (cpuid(xen_features) & xen_rnd) >>> rdmsr(xen_rnd) >>> } >>> >> >> If we need to do chase loops, especially not so... >> > What loops exactly? As a non native English speaker I fail to understand > if your answer is "yes" or "no" ;) > The above...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
0
Standardizing an MSR or other hypercall to get an RNG seed?
...OR_SIGNATURE) > if (h == KVMKVMKVM) { > if (cpuid(kvm_features) & kvm_rnd) > rdmsr(kvm_rnd) > else (h == HyperV) { > if (cpuid(hv_features) & hv_rnd) > rdmsr(hv_rnd) > else (h == XenXenXen) { > if (cpuid(xen_features) & xen_rnd) > rdmsr(xen_rnd) > } > I think that there's a lot of value in having each guest implementation be automatically compatible with all hypervisors. For example, you forgot VMware, and VMware might be less excited about implementing this feature if all the guests won't imm...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
2
Standardizing an MSR or other hypercall to get an RNG seed?
On Thu, Sep 18, 2014 at 03:00:05PM -0700, Andy Lutomirski wrote: > On Thu, Sep 18, 2014 at 2:46 PM, David Hepkin <davidhep at microsoft.com> wrote: > > I suggest we come to consensus on a specific CPUID leaf where an OS needs to look to determine if a hypervisor supports this capability. We could define a new CPUID leaf range at a well-defined location, or we could just use one of
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
2
Standardizing an MSR or other hypercall to get an RNG seed?
On Thu, Sep 18, 2014 at 03:00:05PM -0700, Andy Lutomirski wrote: > On Thu, Sep 18, 2014 at 2:46 PM, David Hepkin <davidhep at microsoft.com> wrote: > > I suggest we come to consensus on a specific CPUID leaf where an OS needs to look to determine if a hypervisor supports this capability. We could define a new CPUID leaf range at a well-defined location, or we could just use one of
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
0
Standardizing an MSR or other hypercall to get an RNG seed?
...>>> rdmsr(kvm_rnd) >> >>> else (h == HyperV) { >> >>> if (cpuid(hv_features) & hv_rnd) >> >>> rdmsr(hv_rnd) >> >>> else (h == XenXenXen) { >> >>> if (cpuid(xen_features) & xen_rnd) >> >>> rdmsr(xen_rnd) >> >>> } >> >>> >> >> >> >> If we need to do chase loops, especially not so... >> >> >> > What loops exactly? As a non native English speaker I fail to understand >> >...
Standardizing an MSR or other hypercall to get an RNG seed?
2014 Sep 19
0
Standardizing an MSR or other hypercall to get an RNG seed?
...; >> >>> else (h == HyperV) { >> >> >>> if (cpuid(hv_features) & hv_rnd) >> >> >>> rdmsr(hv_rnd) >> >> >>> else (h == XenXenXen) { >> >> >>> if (cpuid(xen_features) & xen_rnd) >> >> >>> rdmsr(xen_rnd) >> >> >>> } >> >> >>> >> >> >> >> >> >> If we need to do chase loops, especially not so... >> >> >> >> >> > What loops exactly? As...