[Qemu-devel] how to enable nvme device in Qemu?

[Qemu-devel] how to enable nvme device in Qemu?

[Qingtao Sun]

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Hi all,
         I want to boot OS from NVMe device in qemu-2.5.1. But I didn't find the bootable NVMe device in guest BIOS. How to enable this feature?

Thanks!

Qingtao

Architect
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Re: [Qemu-devel] how to enable nvme device in Qemu?

[Stefan Hajnoczi]

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On Tue, Apr 19, 2016 at 08:37:42AM +0000, Qingtao Sun wrote:
>          I want to boot OS from NVMe device in qemu-2.5.1. But I didn't find the bootable NVMe device in guest BIOS. How to enable this feature?

I don't see an NVMe driver so I guess SeaBIOS does not support boot from
NVMe:
https://code.coreboot.org/p/seabios/source/tree/master/src/hw

I have CCed the SeaBIOS mailing list in case they have any advice.

Stefan

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Re: [Qemu-devel] how to enable nvme device in Qemu?

[Laszlo Ersek]

On 04/26/16 11:18, Stefan Hajnoczi wrote:
> On Tue, Apr 19, 2016 at 08:37:42AM +0000, Qingtao Sun wrote:
>>          I want to boot OS from NVMe device in qemu-2.5.1. But I didn't find the bootable NVMe device in guest BIOS. How to enable this feature?
> 
> I don't see an NVMe driver so I guess SeaBIOS does not support boot from
> NVMe:
> https://code.coreboot.org/p/seabios/source/tree/master/src/hw
> 
> I have CCed the SeaBIOS mailing list in case they have any advice.

Removing the SeaBIOS list before I achieve "generally hated" status
there, for peddling OVMF :)

Qingtao Sun: you can boot off of NVMe devices with recent OVMF.

https://github.com/tianocore/edk2/issues/48
https://www.kraxel.org/repos/

As far as QEMU is concerned, you will need a binary that has commit
a907ec52cc1a (v2.6.0-rc3, for example -- v2.5.* don't have it, directly
or via cherry-pick).

Thanks
Laszlo