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From: Greg Kurz <groug@kaod.org>
To: Marcel Apfelbaum <marcel@redhat.com>
Cc: Andrea Bolognani <abologna@redhat.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	Alexey Kardashevskiy <aik@ozlabs.ru>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
	libvir-list@redhat.com, Michael Roth <mdroth@linux.vnet.ibm.com>,
	benh@kernel.crashing.org, Marcel Apfelbaum <mapfelba@redhat.com>
Subject: Re: [Qemu-devel] [Qemu-ppc] [RFC PATCH qemu] spapr_pci: Create PCI-express root bus by default
Date: Tue, 13 Dec 2016 14:15:43 +0100	[thread overview]
Message-ID: <20161213141543.06812da0@bahia.lan> (raw)
In-Reply-To: <491c0ca6-c559-441b-7a14-3656bfc0abfc@redhat.com>

On Tue, 13 Dec 2016 14:25:44 +0200
Marcel Apfelbaum <marcel@redhat.com> wrote:

> >> Now... from what Laine was saying it sounds like more of the
> >> differences between PCI-E placement and PCI placement may be
> >> implemented by libvirt than qemu than I realized.  So possibly we do
> >> want to make the bus be PCI-E on the qemu side, but have libvirt use
> >> the vanilla-PCI placement guidelines rather than PCI-E for pseries.  
> >
> > Basically the special casing I was mentioning earlier.  
> 
> That looks complicated.. I wish I would no more about the pseries
> PCIe stuff, does any one know where I can get the info ? (besides 'google it'...)

This is described in the LoPAPR specification, available at:

https://openpowerfoundation.org/wp-content/uploads/2016/05/LoPAPR_DRAFT_v11_24March2016_cmt1.pdf

Cheers.

--
Greg

  reply	other threads:[~2016-12-13 13:16 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28  7:56 [Qemu-devel] [RFC PATCH qemu] spapr_pci: Create PCI-express root bus by default Alexey Kardashevskiy
2016-10-28 10:07 ` [Qemu-devel] [Qemu-ppc] " Greg Kurz
2016-10-31  2:53   ` David Gibson
2016-10-31  4:10     ` Alexey Kardashevskiy
2016-11-01  2:46       ` David Gibson
2016-11-15 14:02         ` Andrea Bolognani
2016-11-17  2:02           ` Alexey Kardashevskiy
2016-11-18  6:11             ` David Gibson
2016-11-18  8:17             ` Andrea Bolognani
2016-11-21  2:12               ` Alexey Kardashevskiy
2016-11-21 13:08                 ` Andrea Bolognani
2016-11-22  2:26                   ` Alexey Kardashevskiy
2016-11-23  5:02                     ` David Gibson
2016-11-25 14:36                       ` Andrea Bolognani
2016-12-02  3:37                         ` David Gibson
2016-11-22 14:07                   ` [Qemu-devel] [libvirt] " Eric Blake
2016-11-23  5:00               ` [Qemu-devel] " David Gibson
2016-11-25 13:46                 ` Andrea Bolognani
2016-12-02  4:18                   ` David Gibson
2016-12-02  5:17                     ` Benjamin Herrenschmidt
2016-12-02  5:50                       ` David Gibson
2016-12-02 21:41                         ` Benjamin Herrenschmidt
2016-12-03  1:02                           ` Alexey Kardashevskiy
2016-12-05 19:06                     ` [Qemu-devel] [libvirt] " Laine Stump
2016-12-05 20:54                     ` Laine Stump
2016-12-07  3:34                       ` David Gibson
2016-12-06 17:30                     ` [Qemu-devel] " Andrea Bolognani
2016-12-07  4:11                       ` David Gibson
2016-12-07 16:42                         ` Andrea Bolognani
2016-12-13 12:25                           ` Marcel Apfelbaum
2016-12-13 13:15                             ` Greg Kurz [this message]
2016-12-13 15:15                             ` Benjamin Herrenschmidt
2016-12-14  2:48                               ` David Gibson
2016-12-14 12:02                               ` Marcel Apfelbaum
2016-12-14  2:46                             ` David Gibson
2016-12-14 18:26                               ` Marcel Apfelbaum
2016-12-15 21:59                                 ` Benjamin Herrenschmidt
2016-12-19 17:39                                 ` Andrea Bolognani

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