From: Gerd Hoffmann <kraxel@redhat.com>
To: Marcel Apfelbaum <marcel@redhat.com>
Cc: rth@twiddle.ne, ehabkost@redhat.com, mst@redhat.com,
qemu-devel@nongnu.org, imammedo@redhat.com, pbonzini@redhat.com
Subject: Re: [Qemu-devel] [PATCH 1/4] hw/pxb: remove the built-in pci bridge
Date: Fri, 13 Nov 2015 10:13:22 +0100 [thread overview]
Message-ID: <1447406002.1400.94.camel@redhat.com> (raw)
In-Reply-To: <1447341076-11573-2-git-send-email-marcel@redhat.com>
On Do, 2015-11-12 at 17:11 +0200, Marcel Apfelbaum wrote:
> As part of porting the pxb device to Q35 remove the internal pci-2-pci
> bridge. The only way to hot-pug devices on the extra PCI root buses
> is by adding a pci-2-pci to the pxb before the firmware assign the
> IO/mem resources.
I think this breaks live migration and is guest-visible too. So not
going to fly without backward-compatibility mode for old machine
types ...
Possibly it is easier to just have have pci and pcie pxb devices look
differenty rather than adding all the compatibility fluff.
cheers,
Gerd
next prev parent reply other threads:[~2015-11-13 9:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-12 15:11 [Qemu-devel] [PATCH 0/4] hw/pcie: Multi-root support for Q35 Marcel Apfelbaum
2015-11-12 15:11 ` [Qemu-devel] [PATCH 1/4] hw/pxb: remove the built-in pci bridge Marcel Apfelbaum
2015-11-13 9:13 ` Gerd Hoffmann [this message]
2015-11-13 9:22 ` Marcel Apfelbaum
2015-11-12 15:11 ` [Qemu-devel] [PATCH 2/4] hw/acpi: merge pxb adjacent memory/IO ranges Marcel Apfelbaum
2015-11-12 15:11 ` [Qemu-devel] [PATCH 3/4] hw/pc: query both q35 and i440fx bus Marcel Apfelbaum
2015-11-12 15:11 ` [Qemu-devel] [PATCH 4/4] hw/pxb: add support for PCIe Marcel Apfelbaum
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