[PATCH v1 00/10] capabilities: Expose HMAT

[Martin Kletzander]

On Mon, May 31, 2021 at 10:36:01AM +0200, Michal Privoznik wrote:
>We allow configuring HMAT for domains since v6.6.0-rc1~249 (and
>friends). Basically, HMAT is more fine grained description of
>interconnects of NUMA nodes than basic NUMA distances. The former
>describes bandwidths and latencies while the latter is some
>dimensionless and normalized number.
>
>Anyway, mgmt apps did not really know what values to set for HMAT
>because we are not exposing them in capabilities because we were waiting
>on kernel to expose them. And it just did.
>
>In 09/10 I'm describing sysfs interface briefly and also mention that
>there's no interpretation of links to memory side caches, yet. I'm
>talking to kernel developers so we might get some movement there. But
>also, I'm not sure whether it's worth the effort OR if there really is a
>machine that has separate links to main memory and caches.
>
>Here's link to ACPI spec:
>
>  https://uefi.org/sites/default/files/resources/ACPI_6_2.pdf
>
>Look for "5.2.27.4 System Locality Latency and Bandwidth Information
>Structure".
>
>And here's link to sysfs docs:
>
>  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/mm/numaperf.rst
>
>
>Michal Prívozník (10):
>  tests: glib-ify vircaps2xmltest
>  schemas: Allow zero <cpu/> for capabilities
>  capabilities: Separate <cpu/> formatting into a function
>  numa_conf: Rename virDomainCache* to virNumaCache*
>  numa_conf: Expose virNumaCache formatter
>  capabilities: Expose NUMA memory side cache
>  numa_conf: Rename virDomainNumaInterconnect* to virNumaInterconnect*
>  numa_conf: Expose virNumaInterconnect formatter

To these 8 patches above:

Reviewed-by: Martin Kletzander <mkletzan at redhat.com>

>  capabilities: Expose NUMA interconnects
>  vircaps2xmltest: Introduce HMAT test case
>

These last two need some fix and/or explanation.
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