[libvirt] [PATCH RFC V2 1/2] Resctrl: Add new xml element to support cache tune

[Martin Kletzander]

On Mon, Jun 26, 2017 at 06:33:39PM +0800, Eli Qiao wrote:
>This patch adds new xml element to support cache tune as:
>
><cputune>
>  ...
>  <cachetune cacheId='0' type='both' sizeKiB='2816' vcpus='0,1'/>
>  ...
></cputune>
>
>cacheId: reference of the host's cache banks id, it's from capabilities
>          xml.
>type:    cache bank type, it could be both, code, data.
>sizeKiB: must be multiple of granularity, must be greater than or equal
>         to minimum.

Why would you come up with something like 'sizeKib'?  That's so
inconvenient.

>vcpus:   cache allocation on vcpu set, if empty, will apply the allocation
>         on all vcpus.
>
>Signed-off-by: Eli Qiao <liyong.qiao at intel.com>
>---
> docs/schemas/domaincommon.rng |  29 +++++++++++
> src/conf/domain_conf.c        | 113 +++++++++++++++++++++++++++++++++++++++++-
> src/conf/domain_conf.h        |  19 +++++++
> 3 files changed, 160 insertions(+), 1 deletion(-)
>
>diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
>index 0409c62..fa8d03e 100644
>--- a/src/conf/domain_conf.c
>+++ b/src/conf/domain_conf.c
>@@ -17642,7 +17730,6 @@ virDomainDefParseXML(xmlDocPtr xml,
>         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
>                        _("cannot extract vcpusched nodes"));
>         goto error;
>-    }
>
>     for (i = 0; i < n; i++) {
>         if (virDomainVcpuThreadSchedParse(nodes[i], def) < 0)

And this hunk breaks the whole compilation, of course.

I'm not at work for few days plus there's a public holiday in my
country, so I won't be here for a while.  That shouldn't stop anyone
else reviewing your code, but I'm giving you a heads-up that I'll
probably work on a separate solution if I have some extra time on my
hands during vacation.

Have a nice day,
Martin
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