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x86: acpi: Align FACS table to a 64 byte boundary 

Per ACPI spec, the FACS table address must be aligned to a 64 byte
boundary (Windows checks this, but Linux does not).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2016-05-07 07:46:27 -07:00
parent 7e79a6bc2e
commit 25e133ecb7
1 changed files with 5 additions and 1 deletions
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6
arch/x86/lib/acpi_table.c
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@ -339,7 +339,11 @@ u32 write_acpi_tables(u32 start)
current = ALIGN(current, 16);
xsdt = (struct acpi_xsdt *)current;
current += sizeof(struct acpi_xsdt);
current = ALIGN(current, 16);
/*
* Per ACPI spec, the FACS table address must be aligned to a 64 byte
* boundary (Windows checks this, but Linux does not).
*/
current = ALIGN(current, 64);
/* clear all table memory */
memset((void *)start, 0, current - start);