Re: [PATCH 08/13] conf: Parse and format HMAT

To cite ACPI specification: Heterogeneous Memory Attribute Table describes the memory attributes, such as memory side cache attributes and bandwidth and latency details, related to the System Physical Address (SPA) Memory Ranges. The software is expected to use this information as hint for optimization. According to our upstream discussion [1] this is exposed under <numa/> as <cache/> under NUMA <cell/> and <latency> or <bandwidth/> under numa/latencies. 1: https://www.redhat.com/archives/libvir-list/2020-January/msg00422.html Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- docs/formatdomain.html.in | 88 ++++++ docs/schemas/cputypes.rng | 110 ++++++- src/conf/numa_conf.c | 350 ++++++++++++++++++++- src/conf/numa_conf.h | 33 ++ src/libvirt_private.syms | 6 + tests/qemuxml2argvdata/numatune-hmat.xml | 52 +++ tests/qemuxml2xmloutdata/numatune-hmat.xml | 1 + tests/qemuxml2xmltest.c | 1 + 8 files changed, 625 insertions(+), 16 deletions(-) create mode 100644 tests/qemuxml2argvdata/numatune-hmat.xml create mode 120000 tests/qemuxml2xmloutdata/numatune-hmat.xml diff --git a/tests/qemuxml2argvdata/numatune-hmat.xml b/tests/qemuxml2argvdata/numatune-hmat.xml new file mode 100644 index 0000000000..b20ca0e439 --- /dev/null +++ b/tests/qemuxml2argvdata/numatune-hmat.xml @@ -0,0 +1,52 @@ +<domain type='qemu'> + <name>QEMUGuest</name> + <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>8388608</memory> + <currentMemory unit='KiB'>8388608</currentMemory> + <vcpu placement='static'>12</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + <apic/> + <pae/> + </features> + <cpu> + <numa> + <cell id='0' cpus='0-3' memory='2097152' unit='KiB'> + <cache level='1' associativity='direct' policy='writeback'> + <size value='10' unit='KiB'/> + <line value='8' unit='B'/> + </cache> + </cell> + <cell id='1' cpus='4-7' memory='2097152' unit='KiB'/> + <cell id='2' cpus='8-11' memory='2097152' unit='KiB'/> + <cell id='3' memory='2097152' unit='KiB'/> + <cell id='4' memory='2097152' unit='KiB'/> + <cell id='5' memory='2097152' unit='KiB'/> + <latencies> + <latency initiator='0' target='0' type='access' value='5'/> + <latency initiator='0' target='0' cache='1' type='access' value='10'/> + <bandwidth initiator='0' target='0' type='access' value='204800' unit='KiB'/> + </latencies>