platform/x86: dell-smbios-wmi: Add new WMI dispatcher driver

The dell-smbios stack only currently uses an SMI interface which grants
direct access to physical memory to the firmware SMM methods via a pointer.

This dispatcher driver adds a WMI-ACPI interface that is detected by WMI
probe and preferred over the SMI interface in dell-smbios.

Changing this to operate over WMI-ACPI will use an ACPI OperationRegion
for a buffer of data storage when SMM calls are performed.

This is a safer approach to use in kernel drivers as the SMM will
only have access to that OperationRegion.

Signed-off-by: Mario Limonciello <[email protected]>
Reviewed-by: Edward O'Callaghan <[email protected]>
Signed-off-by: Darren Hart (VMware) <[email protected]>

0 files changed, 0 insertions, 0 deletions