Re: [RFC PATCH 4/5] acpi/hmat: Register special purpose memory as a device
On Thu, Apr 04, 2019 at 12:08:49PM -0700, Dan Williams wrote:
Memory that has been tagged EFI_SPECIAL_PURPOSE, and has performance
properties described by the ACPI HMAT is expected to have an application
specific consumer.
Those consumers may want 100% of the memory capacity to be reserved from
any usage by the kernel. By default, with this enabling, a platform
device is created to represent this differentiated resource.
This sounds more than weird. Since when did we let the firmware decide
who can use the memory?