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Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory |
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Date: |
Thu, 04 Dec 2014 07:08:03 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 |
On 12/03/2014 03:07 PM, Bryan D. Payne wrote:
>>
>> In addition to Fam's review, I have a question - does this code properly
>> use qemu_open() so that I can use 'add-fd' to pass in a pre-opened
>> socket fd into fdset 1, then call pmemaccess with '/dev/fdset/1'? If
>> not, can you please fix it to allow this usage?
>>
>
> I'm not familiar with this setup. Could you point me to an example of
> where this is done properly somewhere else in the Qemu code base? Once I
> figure this out, I'll be able to post the v3 patch.
Off the top of my head, I know the -tpm command line options (related to
the 'query-tpm' QMP command) do this; look at hw/tpm/tpm_passthrough.c
for that implementation.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Markus Armbruster, 2014/12/04