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Re: [Qemu-devel] [PATCH V4] hw/pxb: add chassis_nr property
From: |
Cao jin |
Subject: |
Re: [Qemu-devel] [PATCH V4] hw/pxb: add chassis_nr property |
Date: |
Thu, 17 Mar 2016 18:02:13 +0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
hi
On 03/15/2016 07:44 PM, Marcel Apfelbaum wrote:
On 03/15/2016 10:00 AM, Cao jin wrote:
And I have another personal question: In qemu design, it seems every
pci bridge reside in a separate chassis, what`s benefit? why don`t
put them all in the main chassis?
Please have a look on pci-to-pci bridge specification, chapter 13, slot
numbering.
thanks for the hint.
I still have a question: in docs/pci_expander_bridge.txt, it says:
create a TYPE_PCI_BRIDGE_DEV to enable hotplug support.
But I didn`t see it can hotplug as following step:
1: ./qemu-system-x86_64 -device pxb,id=br,bus=pci.0,bus_nr=2 -hda
linux.img -smp 2 --enable-kvm -m 1024 -monitor stdio
2: in monitor, type: device_add e1000,bus=br
result: no message output to monitor, and don`t see e1000 nic in guest
Is is a bug or I test it in a wrong way?
--
Yours Sincerely,
Cao jin