Re: Arch-neutral name for hardware interrupt support

[Alistair Francis <alistair23@xxxxxxxxx>]

On Tue, Nov 2, 2021 at 6:33 AM Stefano Stabellini
<sstabellini@xxxxxxxxxx> wrote:
>
> +Bertrand
>
> On Mon, 1 Nov 2021, Andrew Cooper wrote:
> > Hello,
> >
> > On ARM, the GIC is a hard prerequisite for VMs.
> >
> > I can't remember what the state of RISCV is, but IIRC there is still
> > some debate over how interrupts are expected to work under virt.

We are getting there, the current draft is pretty stable:
https://github.com/riscv/riscv-aia/

> >
> > On x86, the story is very different.  PV have no hardware assistance,
> > while HVM hardware assistance depends on hardware support.  Therefore we
> > want to introduce a new CDF flag so we can control the setting per
> > domain, rather than globally as it is done now.
> >
> > This brings us to the question of what a suitable architecture name
> > would be.
> >
> > Hardware Virtual Interrupts is a little too close to Hardware Virtual
> > (Machine) Introspection, and Hardware Assisted Interrupts (mirroring
> > HAP) doesn't seem great either.
> >
> > Thoughts / ideas / suggestions?
>
> Maybe "hardware-enabled virtualized interrupts"

hardware-supported virtualised interrupts (HSV Interrupts)

Alistair