Re: [Qemu-devel] [PATCH] backends/hostmem-file: Add file-name property

[Eric Blake <eblake@redhat.com>]

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On 10/27/2015 07:53 AM, Pavel Fedin wrote:
> This option allows to explicitly specify file name to use with the backend.
> This is important when using it together with ivshmem in order to make it
> backed by hugetlbfs. By default filename is autogenerated using mkstemp(),
> and the file is unlink()ed after creation, effectively making it
> anonymous. This is not very useful with ivshmem because it ends up in a
> memory which cannot be accessed by something else.
> 
> Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
> Tested-by: Igor Skalkin <i.skalkin@samsung.com>
> ---
>  backends/hostmem-file.c | 26 +++++++++++++++++++++++++-
>  exec.c                  | 36 ++++++++++++++++++++++++------------
>  include/exec/memory.h   |  3 +++
>  include/exec/ram_addr.h |  2 +-
>  memory.c                |  4 +++-
>  numa.c                  |  2 +-
>  qemu-doc.texi           |  2 +-
>  7 files changed, 58 insertions(+), 17 deletions(-)

Is there a missing qapi change, so that the new filename attribute can
also be specified by QMP command?  Or do we not support hotplug of
ivshmem yet?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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