Re: 2nd round of xen benchmarking

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Aug 24, 2024 at 09:59:45PM +0200, Manuel Bouyer wrote:
> On Sat, Aug 24, 2024 at 12:37:33PM -0700, John Nemeth wrote:
> >      Is EPT a cpu flag shown by "cpuctl identify",
> 
> AFAIK no, and I didn't see a flag for VT-x either
> 
> > or how do we
> > know when a system has it?
> 
> I had to look at ark.intel.com

BTW, Xen will tell you at boot:
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--