Re: [PATCH v4 0/8] Introduce the microvm machine type

[Pankaj Gupta <pagupta@redhat.com>]

> On 24.09.19 14:44, Sergio Lopez wrote:
> > Microvm is a machine type inspired by both NEMU and Firecracker, and
> > constructed after the machine model implemented by the latter.
> > 
> > It's main purpose is providing users a minimalist machine type free
> > from the burden of legacy compatibility, serving as a stepping stone
> > for future projects aiming at improving boot times, reducing the
> > attack surface and slimming down QEMU's footprint.
> > 
> > The microvm machine type supports the following devices:
> > 
> >  - ISA bus
> >  - i8259 PIC
> >  - LAPIC (implicit if using KVM)
> >  - IOAPIC (defaults to kernel_irqchip_split = true)
> >  - i8254 PIT
> >  - MC146818 RTC (optional)
> >  - kvmclock (if using KVM)
> >  - fw_cfg
> >  - One ISA serial port (optional)
> >  - Up to eight virtio-mmio devices (configured by the user)
> 
> So I assume also no ACPI (CPU/memory hotplug), correct?
> 
> @Pankaj, I think it would make sense to make virtio-pmem play with
> virtio-mmio/microvm.

I agree. Its using virtio-blk device over a raw image.
Similarly or alternatively(as an experiment) we can use virtio-pmem
which will even reduce the guest memory footprint. 

Best regards,
Pankaj

> 
> --
> 
> Thanks,
> 
> David / dhildenb
>