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


From: David Hildenbrand
Subject: Re: [PATCH v4 0/8] Introduce the microvm machine type
Date: Wed, 25 Sep 2019 09:41:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

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.

-- 

Thanks,

David / dhildenb



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