x86: config option for loading ACPI table from QEMU

This patch adds a config option for loading ACPI table from QEMU. When enabled,
U-Boot won't generate ACPI tables, but use those provided by QEMU.

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f07567c81ac4374c46349cf892c5420179841369..a995e32bb98cfc3dd1f5dc2a9efb4ed3b044516f 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -358,6 +358,15 @@ config GENERATE_ACPI_TABLE
          by the operating system. It defines platform-independent interfaces
          for configuration and power management monitoring.
 
+config QEMU_ACPI_TABLE
+       bool "Load ACPI table from QEMU fw_cfg interface"
+       depends on GENERATE_ACPI_TABLE && QEMU
+       default y
+       help
+         By default, U-Boot generates its own ACPI tables. This option, if
+         enabled, disables U-Boot's version and loads ACPI tables generated
+         by QEMU.
+
 config GENERATE_SMBIOS_TABLE
        bool "Generate an SMBIOS (System Management BIOS) table"
        default y