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Re: [libvirt] [PATCH 1/1] Clear PIIX3/PIIX4_USB capabilities for non-X86 platforms



On 2013年02月28日 19:55, Jiri Denemark wrote:
On Thu, Feb 28, 2013 at 19:47:47 +0800, Li Zhang wrote:
On 2013年02月28日 19:39, Jiri Denemark wrote:
I tried to execute  "qom-list-types" command, I get a lot of return values
including X86 and other platforms.
I think this is the real problem. QEMU binary emulating PPC architecture
should not advertise x86-specific objects.
It seems that command "qom-list-types" just give all architectures'
list, not related with architecture.
qemu-system-x86_64 also can get all information of other architectures.

I think it is not right way to getting capabilities by "qom-list-types".
Yeah, it's either bug in qemu or libvirt should use another way of
probing this stuff.

To fix this problem can be either way of the following:
1. Specify the architectures in Libvirt as my patch.
No way. This won't work if you want to start PPC domain on an x86 host
or x86 domain on a PPC host.

2. Specify the architectures in QEMU by modifying "qom-list-types"
command.
Perhaps. We definitely need to find the right way of probing the data we
care about. And it's likely both libvirt and qemu will need to be
modified.
Got it, thanks.
I will look into it in QEMU. :)


Jirka


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