motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 18:23:57 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

hmat acpi: Build Memory Proximity Domain Attributes Structure(s)

Browse source 
HMAT is defined in ACPI 6.3: 5.2.27 Heterogeneous Memory Attribute Table
(HMAT). The specification references below link:
http://www.uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf

It describes the memory attributes, such as memory side cache
attributes and bandwidth and latency details, related to the
Memory Proximity Domain. The software is
expected to use this information as hint for optimization.

This structure describes Memory Proximity Domain Attributes by memory
subsystem and its associativity with processor proximity domain as well as
hint for memory usage.

In the linux kernel, the codes in drivers/acpi/hmat/hmat.c parse and report
the platform's HMAT tables.

Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Daniel Black <daniel@linux.ibm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-5-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Liu Jingqi 2019-12-13 09:19:25 +08:00 • committed by Michael S. Tsirkin
parent c412a48d4d
commit e6f123c3b8
5 changed files with 152 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
hw/acpi/Kconfig
View file

@ -7,6 +7,7 @@ config ACPI_X86
select ACPI_NVDIMM
select ACPI_CPU_HOTPLUG
select ACPI_MEMORY_HOTPLUG
select ACPI_HMAT
config ACPI_X86_ICH
bool
@ -23,6 +24,10 @@ config ACPI_NVDIMM
bool
depends on ACPI
config ACPI_HMAT
bool
depends on ACPI
config ACPI_PCI
bool
depends on ACPI && PCI
@ -33,5 +38,3 @@ config ACPI_VMGENID
depends on PC
config ACPI_HW_REDUCED
bool
depends on ACPI