> -----Original Message-----
> From: Gerd Hoffmann <kra...@redhat.com>
> Sent: 08 April 2021 11:10
> To: Thanos Makatos <thanos.maka...@nutanix.com>
> Cc: seabios@seabios.org; John Levon <john.le...@nutanix.com>; Swapnil
> Ingle <swapnil.in...@nutanix.com>; Liu, Changpeng
> <changpeng....@intel.com>
> Subject: Re: [SeaBIOS] SeaBIOS fails to boot from NVMe controller with lots
> of namespaces
>
> On Thu, Apr 01, 2021 at 12:42:18PM +0000, Thanos Makatos wrote:
> > I'm using SeaBIOS (b0d61ec) to boot from a virtual NVMe controller that
> has relatively many namespaces (64). The exact error is :
> >
> > /3ff9f000\ Start thread
> > |3ff9f000| Searching bootorder for: /pci@i0cf8/*@6
> > ...
> > |3ff9f000| WARNING - Unable to allocate resource at
> nvme_controller_enable:632!
> >
> > I changed the number of namespaces my controller reports to 1 and it
> > worked fine. Is there an easy way to get around this or do I have to
> > fix the code? I haven't looked at the code in detail, but I think we
> > don't have to allocate the array of namespaces in
> > nvme_controller_enable; instead, we can probe a namespace right before
> > we attempt to boot from it (not sure where exactly this is done).
>
> Well, you can try skip non-bootable namespaces and use "qemu -boot
> strict=on". It happens on nvme controller level already (see
> nvme_controller_setup()).
AFAIK this applies to the entire controller, not individual namespaces.
>
> Easy way out without actual code changes would be to use two nvme
> controllers, one for the boot disk, one for all others, set bootindex for the
> boot disk only (and use strict=on of course). seabios should completely
> ignore the second nvme controller then.
That's not option for me as this will be a customer VM so we don't know on
which NS the OS will be installed.
In another email I said that increasing BUILD_MIN_BIOSTABLE by 8x solves the
problem, is there a problem with this solution?
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