ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses
authorColin Ian King <colin.king@canonical.com>
Thu, 21 Jan 2016 17:05:47 +0000 (17:05 +0000)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 9 Mar 2016 22:46:07 +0000 (23:46 +0100)
commitb2ca5dae31d61c4610ea3228f43f7cc66312897c
treef51780882162e90706be785ca9b7057854577e0f
parent75829dcf10862966f52716f2d67ac1c1b1eb486b
ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses

Some HP laptops seem to have invalid 64 bit FADT X_PM* addresses
which are causing various boot issues.  In these cases, it would
be useful to force ACPI to use the valid legacy 32 bit equivalent
PM addresses.  Add a acpi_force_32bit_fadt_addr to set the ACPICA
acpi_gbl_use32_bit_fadt_addresses to TRUE to force this override.

Link: https://bugs.launchpad.net/bugs/1529381
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Documentation/kernel-parameters.txt
drivers/acpi/tables.c