[libvirt] [PATCH 3/3] xml: allow scaled memory on input

Eric Blake eblake at redhat.com
Thu Feb 23 12:45:03 UTC 2012


On 02/22/2012 09:59 PM, Eric Blake wrote:
> Output is still in kibibytes, but input can now be in different
> scales for ease of typing.
> 
> * src/conf/domain_conf.c (virDomainParseMemory): New helper.
> (virDomainDefParseXML): Use it when parsing.
> * docs/schemas/domaincommon.rng: Expand XML.
> * docs/formatdomain.html.in (elementsMemoryAllocation): Document
> scaling.
> ---
>  docs/formatdomain.html.in     |   39 ++++++++++---
>  docs/schemas/domaincommon.rng |    4 +-
>  src/conf/domain_conf.c        |  129 ++++++++++++++++++++++++++++++++++------
>  3 files changed, 142 insertions(+), 30 deletions(-)

self-NACK to v1 - I forgot to add a unit test that exercises the new
unit parsing, and...

> +        tebibytes (1,099,511,627,776).  However, the value will be
> +        rounded up to the nearest kibibyte by libvirt, and may be
> +        further rounded to the granularity supported by the
> +        hypervisor.  As a sanity check, values less than 4000KiB are
> +        not permitted.

This statement is not true (I originally tried to make the C code match
the RNG, but it caused too many testsuite failures, so I rebased and
inserted 2/3 to fix the RNG instead, but forgot to touch this up again).

I'll fix that in v2, along with a rename to unit='KiB' instead of units.

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

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