Re: [Xen-devel] [PATCH] x86/hvm: Provide list of emulated features in HVM CPUID leaf

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 02/02/2016 23:17, Boris Ostrovsky wrote:
> Hypervisor may choose which features to emulate for HVMlite guests.
> Guest will query the HVM CPUID leaf to find out what is available.
>
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Roger also submitted a patch to do this.  However, it is not
appropriate, so was dropped.

An HVMLite domain should assume there are no emulated devices.  The very
old legacy devices will never be implemented, and any others we care
about possibly implementing in the future have APCI-based ways of
indicating support.

~Andrew

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