From 25e133ecb760a46f6b4a88b4b17aecfb0d6af8dd Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sat, 7 May 2016 07:46:27 -0700 Subject: [PATCH] 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 Reviewed-by: Stefan Roese Tested-by: Stefan Roese Reviewed-by: Simon Glass --- arch/x86/lib/acpi_table.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index 7ff6e8c795..9cdea9352b 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -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); -- 2.25.1