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Re: [PATCH v2] hw/arm/virt enable support for virtio-mem
From: |
David Hildenbrand |
Subject: |
Re: [PATCH v2] hw/arm/virt enable support for virtio-mem |
Date: |
Wed, 25 Nov 2020 17:32:44 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 |
On 25.11.20 17:11, Jonathan Cameron wrote:
> On Wed, 25 Nov 2020 16:54:53 +0100
> David Hildenbrand <david@redhat.com> wrote:
>
>>>>>>
>>>>>> 64k guest on 4k host with 512MiB block size seems fine.
>>>>>>
>>>>>> If there are any places anyone thinks need particular poking I'd
>>>>>> appreciate a hint :)
>>>>>
>>>>> If things seem to work for now, that's great :) Thanks!
>>>>>
>>>> Cool. I'll run a few more comprehensive tests then send out the
>>>> trivial patch to enable the kernel option + v2 of the qemu support.
>>>
>>> Perfect, thanks!
>>
>> Oh, btw, I have no idea what the state of vfio-pci + QEMU on arm64 is.
>> In case it's supposed to work, you could give
>>
>> 20201119153918.120976-1-david@redhat.com">https://lkml.kernel.org/r/20201119153918.120976-1-david@redhat.com
>>
>> to see what we're missing.
>
> vfio-pci works in general (and we use it a lot), so sure I'll give
> this a test run.
Cool.
In case you get it to run, please test with both "online_kernel" and
"online_movable" in the guest, and small boot memory (e.g., 2 GiB).
For example, on x86-64 I got my vfio-pci provided GPUs to consume
virtio-mem memory easily when starting with 2-4 GiB boot memory and
using "online_kernel". (I verified that when not creating the mappings,
IO errors can be observed and graphics are messed up).
--
Thanks,
David / dhildenb
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, (continued)
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, Jonathan Cameron, 2020/11/24
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, David Hildenbrand, 2020/11/24
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, Andrew Jones, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, David Hildenbrand, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, Andrew Jones, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, David Hildenbrand, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, Jonathan Cameron, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, David Hildenbrand, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, David Hildenbrand, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem, Jonathan Cameron, 2020/11/25
- Re: [PATCH v2] hw/arm/virt enable support for virtio-mem,
David Hildenbrand <=