** Package changed: kvm (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Triaged => New
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https://bugs.launchpad.net/bugs/1782212
Title:
KVM CLX ACPI HMAT table support
Status in linux package in Ubuntu:
New
Bug description:
ACPI HMAT table support : HMAT is a new ACPI table that records the
performance parameter of memory, so MCDRAM (or next gen HBM2) can be
described well by this table. We need to support this table in kernel
and qemu so that guest can get and parse this table then to find where
the high-performance memory is.
Heterogeneous Memory Attribute Table (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.
HMAT is defined in ACPI 6.2: 5.2.27 Heterogeneous Memory Attribute Table
(HMAT).
http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf
patches:
http://lists.nongnu.org/archive/html/qemu-devel/2018-06/msg05368.html
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