From: Cornelia Huck <conny@cornelia-huck.de>
To: Thomas Huth <thuth@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
qemu-devel <qemu-devel@nongnu.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Stefano Garzarella <sgarzare@redhat.com>,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: VW ELF loader
Date: Tue, 4 Feb 2020 09:54:03 +0100 [thread overview]
Message-ID: <20200204095403.04d9dd29.conny@cornelia-huck.de> (raw)
In-Reply-To: <d13eea1d-7942-47e0-6189-a66ce9639db4@redhat.com>
On Tue, 4 Feb 2020 07:16:46 +0100
Thomas Huth <thuth@redhat.com> wrote:
> On 04/02/2020 00.26, Paolo Bonzini wrote:
> >
> >
> > Il mar 4 feb 2020, 00:20 Alexey Kardashevskiy <aik@ozlabs.ru
> > <mailto:aik@ozlabs.ru>> ha scritto:
> >
> > Speaking seriously, what would I put into the guest?
> >
> > Only things that would be considered drivers. Ignore the partitions
> > issue for now so that you can just pass the device tree services to QEMU
> > with hypercalls.
> >
> > Netboot's dhcp/tftp/ip/ipv6 client? It is going to be another SLOF,
> > smaller but adhoc with only a couple of people knowing it.
> >
> >
> > You can generalize and reuse the s390 code. All you have to write is the
> > PCI scan and virtio-pci setup.
>
> Well, for netbooting, the s390-ccw bios uses the libnet code from SLOF,
> so re-using this for a slim netboot client on ppc64 would certainly be
> feasible (especially since there are also already virtio drivers in SLOF
> that are written in C), but I think it is not very future proof. The
> libnet from SLOF only supports UDP, and no TCP. So for advanced boot
> scenarios like booting from HTTP or even HTTPS, you need something else
> (i.e. maybe grub is the better option, indeed).
That makes me wonder what that means for s390: We're inheriting
libnet's limitations, but we don't have grub -- do we need to come up
with something different? Or improve libnet?
next prev parent reply other threads:[~2020-02-04 13:23 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-01 13:39 VW ELF loader Alexey Kardashevskiy
2020-02-01 19:04 ` Paolo Bonzini
2020-02-02 11:51 ` Alexey Kardashevskiy
2020-02-02 17:38 ` Paolo Bonzini
2020-02-03 1:31 ` David Gibson
2020-02-03 1:28 ` David Gibson
2020-02-03 9:12 ` Paolo Bonzini
2020-02-03 9:50 ` David Gibson
2020-02-03 10:58 ` Alexey Kardashevskiy
2020-02-03 15:08 ` Paolo Bonzini
2020-02-03 22:36 ` Alexey Kardashevskiy
2020-02-03 22:56 ` Paolo Bonzini
2020-02-03 23:19 ` Alexey Kardashevskiy
2020-02-03 23:26 ` Paolo Bonzini
2020-02-04 6:16 ` Thomas Huth
2020-02-04 8:54 ` Cornelia Huck [this message]
2020-02-04 9:20 ` Restrictions of libnet (was: Re: VW ELF loader) Thomas Huth
2020-02-04 9:32 ` Thomas Huth
2020-02-04 9:33 ` Michal Suchánek
2020-02-05 5:30 ` David Gibson
2020-02-05 6:24 ` Thomas Huth
2020-02-10 7:55 ` David Gibson
2020-02-10 9:39 ` Michal Suchánek
2020-02-13 3:16 ` David Gibson
2020-02-04 23:18 ` VW ELF loader Alexey Kardashevskiy
2020-02-05 6:06 ` David Gibson
2020-02-05 9:28 ` Cornelia Huck
2020-02-06 4:47 ` David Gibson
2020-02-06 8:27 ` Paolo Bonzini
2020-02-06 23:17 ` Alexey Kardashevskiy
2020-02-06 23:45 ` Paolo Bonzini
2020-02-10 7:30 ` David Gibson
2020-02-10 10:37 ` Peter Maydell
2020-02-10 11:25 ` Paolo Bonzini
2020-02-14 3:23 ` David Gibson
2020-02-10 7:28 ` David Gibson
2020-02-10 11:26 ` Paolo Bonzini
2020-02-14 4:02 ` David Gibson
2020-02-05 5:58 ` David Gibson
2020-02-06 8:29 ` Paolo Bonzini
2020-02-06 23:23 ` Alexey Kardashevskiy
2020-02-06 23:46 ` Paolo Bonzini
2020-02-10 0:31 ` Alexey Kardashevskiy
2020-02-13 1:43 ` Alexey Kardashevskiy
2020-02-13 10:17 ` Paolo Bonzini
2020-02-14 0:01 ` Alexey Kardashevskiy
2020-02-14 2:30 ` David Gibson
2020-02-04 9:40 ` Christian Borntraeger
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