From: Wolfgang Wallner Date: Wed, 16 Sep 2020 14:57:52 +0000 (+0200) Subject: x86: acpi: Fix calculation of DSDT length X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=3f6966ab2b9a2264c05d699353e61b276b1a85bd;p=u-boot.git x86: acpi: Fix calculation of DSDT length Currently, the calculation for the length of the DSDT table includes any bytes that are added for alignment, but those bytes are not initialized. This is because the DSDT length is calculated after a call to acpi_inc_align(). Split this up into the following sequence: * acpi_inc() * Calculate DSDT length * acpi_align() Signed-off-by: Wolfgang Wallner Reviewed-by: Andy Shevchenko Reviewed-by: Simon Glass Reviewed-by: Bin Meng --- diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index 3a93fedfc3..6b827bfa3f 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -427,7 +427,7 @@ ulong write_acpi_tables(ulong start_addr) (char *)&AmlCode + sizeof(struct acpi_table_header), dsdt->length - sizeof(struct acpi_table_header)); - acpi_inc_align(ctx, dsdt->length - sizeof(struct acpi_table_header)); + acpi_inc(ctx, dsdt->length - sizeof(struct acpi_table_header)); /* Pack GNVS into the ACPI table area */ for (i = 0; i < dsdt->length; i++) { @@ -450,6 +450,8 @@ ulong write_acpi_tables(ulong start_addr) dsdt->checksum = 0; dsdt->checksum = table_compute_checksum((void *)dsdt, dsdt->length); + acpi_align(ctx); + /* * Fill in platform-specific global NVS variables. If this fails we * cannot return the error but this should only happen while debugging.