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2 Commits

Author SHA1 Message Date
Rob Bradford
623755cc70 devices: Add ACPI GED device 
This device provides the ability to notify the kernel via interrupt that
there is some new hotplug activity. The type is determined by reading
from the I/O port.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2019-12-02 13:49:04 +00:00
Rob Bradford
5a187ee2c2 x86_64/devices: acpi: Add support for ACPI shutdown & reboot 
Add an I/O port "device" to handle requests from the kernel to shutdown
or trigger a reboot, borrowing an I/O used for ACPI on the Q35 platform.
The details of this I/O port are included in the FADT
(SLEEP_STATUS_REG/SLEEP_CONTROL_REG/RESET_REG) with the details of the
value to write in the FADT for reset (RESET_VALUE) and in the DSDT for
shutdown (S5 -> 0x05)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2019-09-03 19:18:49 +02:00