Re: [Qemu-devel] [PATCH RFC 04/10] virtio-pmem: Prototype

[Eric Blake]

On 1/16/19 5:35 AM, David Hildenbrand wrote:
> From: Pankaj Gupta <address@hidden>
> 
> This is the current protoype of virtio-pmem. Support will require
> machine changes for the architectures that will support it, so it will
> not yet be compiled.
> 
> TODO:
> - Use separate struct for tracking requests internally
> - Move request/response structs to linux headers
> - Factor out linux header sync
> - Drop debug printfs
> 
> Signed-off-by: Pankaj Gupta <address@hidden>
> [ MemoryDevice/MemoryRegion changes, cleanups, addr property "memaddr",
>   split up patches, unplug handler ]
> Signed-off-by: David Hildenbrand <address@hidden>
> ---

> +++ b/qapi/misc.json
> @@ -2949,6 +2949,29 @@
>            }
>  }
>  
> +##
> +# @VirtioPMEMDeviceInfo:
> +#
> +# VirtioPMEM state information
> +#
> +# @id: device's ID
> +#
> +# @memaddr: physical address in memory, where device is mapped
> +#
> +# @size: size of memory that the device provides
> +#
> +# @memdev: memory backend linked with device
> +#
> +# Since: 3.1

Now 4.0

> +##
> +{ 'struct': 'VirtioPMEMDeviceInfo',
> +  'data': { '*id': 'str',
> +            'memaddr': 'size',
> +            'size': 'size',
> +            'memdev': 'str'
> +          }
> +}
> +
>  ##
>  # @MemoryDeviceInfo:
>  #
> @@ -2958,7 +2981,8 @@
>  ##
>  { 'union': 'MemoryDeviceInfo',

Does this union need a documentation update that virtio-pmem was added
in 4.0?

>    'data': { 'dimm': 'PCDIMMDeviceInfo',
> -            'nvdimm': 'PCDIMMDeviceInfo'
> +            'nvdimm': 'PCDIMMDeviceInfo',
> +            'virtio-pmem': 'VirtioPMEMDeviceInfo'
>            }
>  }
>  
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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