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Re: [PATCH v4 0/8] Introduce the microvm machine type
From: |
Sergio Lopez |
Subject: |
Re: [PATCH v4 0/8] Introduce the microvm machine type |
Date: |
Wed, 25 Sep 2019 10:42:53 +0200 |
User-agent: |
mu4e 1.2.0; emacs 26.2 |
Paolo Bonzini <address@hidden> writes:
> On 25/09/19 10:10, Sergio Lopez wrote:
>> That would be great. I'm also looking forward for virtio-mem (and an
>> hypothetical virtio-cpu) to eventually gain hotplug capabilities in
>> microvm.
>
> I disagree with this. virtio is not a silver bullet (and in fact
> perhaps it's just me but I've never understood the advantages of
> virtio-mem over anything else).
>
> If you want to add hotplug to microvm, you can reuse the existing code
> for CPU and memory hotplug controllers, and write drivers for them in
> Linux's drivers/platform. The drivers would basically do what the ACPI
> AML tells the interpreter to do.
>
> There is no reason to add the complexity of virtio to something as
> low-level and deadlock-prone as CPU hotplug.
TBH, I haven't put much thought into this yet. I'll keep this in mind
for the future.
Thanks,
Sergio.
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- Re: [PATCH v4 0/8] Introduce the microvm machine type, (continued)
- Re: [PATCH v4 0/8] Introduce the microvm machine type, David Hildenbrand, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, Pankaj Gupta, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, Sergio Lopez, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, Paolo Bonzini, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type,
Sergio Lopez <=
- Re: [PATCH v4 0/8] Introduce the microvm machine type, David Hildenbrand, 2019/09/25
- when to use virtio (was Re: [PATCH v4 0/8] Introduce the microvm machine type), Paolo Bonzini, 2019/09/25
- Re: when to use virtio (was Re: [PATCH v4 0/8] Introduce the microvm machine type), David Hildenbrand, 2019/09/25
- Re: when to use virtio (was Re: [PATCH v4 0/8] Introduce the microvm machine type), Paolo Bonzini, 2019/09/25
- Re: when to use virtio (was Re: [PATCH v4 0/8] Introduce the microvm machine type), David Hildenbrand, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, Gerd Hoffmann, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, Paolo Bonzini, 2019/09/25
- Re: [PATCH v4 0/8] Introduce the microvm machine type, David Hildenbrand, 2019/09/25
Re: [PATCH v4 0/8] Introduce the microvm machine type, Christian Borntraeger, 2019/09/26