Commit f6556306 authored by Bob Moore's avatar Bob Moore Committed by Len Brown
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ACPICA: FADT: Favor 32-bit FACS and DSDT addresses

If both the 32-bit and 64-bit addresses are non-null, use the
32-bit address. Provides Windows compatibility.
Signed-off-by: default avatarBob Moore <>
Signed-off-by: default avatarLin Ming <>
Signed-off-by: default avatarLen Brown <>
parent 31fbc073
......@@ -483,18 +483,22 @@ static void acpi_tb_validate_fadt(void)
(acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
"32/64X FACS address mismatch in FADT - "
"two FACS tables! %8.8X/%8.8X%8.8X",
"%8.8X/%8.8X%8.8X, using 32",
acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
if (acpi_gbl_FADT.dsdt &&
(acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
"32/64X DSDT address mismatch in FADT - "
"two DSDT tables! %8.8X/%8.8X%8.8X",
"%8.8X/%8.8X%8.8X, using 32",
acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
/* Examine all of the 64-bit extended address fields (X fields) */
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