This series of patches will build Heterogeneous Memory Attribute Table (HMAT) according to the command line. The ACPI HMAT 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.
OSPM evaluates HMAT only during system initialization. Any changes to the HMAT state at runtime or information regarding HMAT for hot plug are communicated using the _HMA method. >From 1 to 6 patches are the former V1 patches. From 7 to 9 patches are the updates per Igor and Eric's comments. The V1 RESEND patches link: http://lists.nongnu.org/archive/html/qemu-devel/2018-06/msg05368.html The V1 patches link: http://lists.nongnu.org/archive/html/qemu-devel/2018-05/msg01927.html Changelog: v2: Per Igor and Eric's comments, fix some coding style and small issues: - update the version number in qapi/misc.json - including the expansion of the acronym HMAT in qapi/misc.json - correct spell mistakes in qapi/misc.json and qemu-options.hx - fix the comment syle in hw/i386/acpi-build.c and hw/acpi/hmat.h - remove some unnecessary head files in hw/acpi/hmat.c - use hardcoded numbers from spec to generate Memory Subsystem Address Range Structure in hw/acpi/hmat.c - drop the struct AcpiHmat and AcpiHmatSpaRange in hw/acpi/hmat.h Per Igor's comment, rewrite NFIT code to build _HMA method. Liu Jingqi (6): hmat acpi: Build Memory Subsystem Address Range Structure(s) in ACPI HMAT hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s) in ACPI HMAT hmat acpi: Build Memory Side Cache Information Structure(s) in ACPI HMAT Extend the command-line to provide memory latency and bandwidth information numa: Extend the command-line to provide memory side cache information hmat acpi: Implement _HMA method to update HMAT at runtime Tao Xu (3): hmat acpi: fix some coding style and small issues hmat acpi: move some function inside of the caller acpi: rewrite the _FIT method to use it in _HMA method default-configs/i386-softmmu.mak | 1 + hw/acpi/Makefile.objs | 1 + hw/acpi/hmat.c | 424 +++++++++++++++++++++++++++++++ hw/acpi/hmat.h | 244 ++++++++++++++++++ hw/acpi/nvdimm.c | 389 ++++++++++++++++++---------- hw/i386/acpi-build.c | 125 +++++---- hw/i386/acpi-build.h | 10 + hw/i386/pc.c | 2 + hw/i386/pc_piix.c | 3 + hw/i386/pc_q35.c | 3 + include/hw/i386/pc.h | 2 + include/hw/mem/nvdimm.h | 11 + include/sysemu/numa.h | 2 + numa.c | 202 +++++++++++++++ qapi/misc.json | 162 +++++++++++- qemu-options.hx | 28 +- 16 files changed, 1426 insertions(+), 183 deletions(-) create mode 100644 hw/acpi/hmat.c create mode 100644 hw/acpi/hmat.h -- 2.17.1
