[libvirt] [PATCH] docs: document <address> elements in one place
Michael Ellerman
michael at ellerman.id.au
Mon Dec 12 07:47:42 UTC 2011
On Fri, 2011-12-09 at 16:35 -0700, Eric Blake wrote:
> Improve the documentation of what forms a valid <address> element,
> since these elements appear in numerous devices.
Thanks for doing that, minor rewrite on this one:
> + <dt><code>type='spapr-vio'</code></dt>
> + <dd>On PowerPC guests, devices are assigned on the SPAPR-VIO
> + bus, which is a flat 64-bit address space, where each address
> + should be aligned on a multiple of 0x1000. Each address has
> + the following additional attribute: <code>reg</code> (the hex
> + value address of the starting
> + register).
I would say something like:
On PowerPC pseries guests, devices can be assigned to the SPAPR VIO bus.
It has a flat 64-bit address space, by convention devices are generally
located at a multiple of 0x1000, but other addresses are legal and
accepted by libvirt. A device can be given an address by specifying the
<code>reg</code> attribute, this gives the 64-bit address of the device.
If no <code>reg</code> value is specified libvirt will attempt to assign
a value for you.
cheers
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