ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses

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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>

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Colin Ian King 2016-01-21 17:05:47 +00:00 • committed by Rafael J. Wysocki

parent 75829dcf10

commit b2ca5dae31

2 changed files with 16 additions and 0 deletions

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6

Documentation/kernel-parameters.txt

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10

drivers/acpi/tables.c

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