@@ -387,10 +387,20 @@ menu "BIOS Tables"
default y
help
Support generation of ACPI tables.
+ config ACPI_BUILTIN
+ bool "Include built-in ACPI tables"
+ default y
+ depends on ACPI
+ help
+ Include built-in ACPI tables in BIOS.
+ Required for QEMU 1.5 and older.
+ This option can be disabled for QEMU 1.6 and newer
+ to save some space in the ROM file.
+ If unsure, say Y.
config ACPI_DSDT
bool "Include default ACPI DSDT"
default y
- depends on ACPI
+ depends on ACPI && ACPI_BUILTIN
help
Include default DSDT ACPI table in BIOS.
Required for QEMU 1.3 and older.
@@ -641,7 +641,7 @@ acpi_setup(void)
RsdpAddr = acpi_find_rsdp_rom();
- if (RsdpAddr) {
+ if (!CONFIG_ACPI_BUILTIN || RsdpAddr) {
return;
}
Serves to save a bit of memory, and is helpful for debugging (making sure tables come from qemu). Memory stats: Enabled: Total size: 128776 Fixed: 59100 Free: 2296 (used 98.2% of 128KiB rom) Disabled: Total size: 119836 Fixed: 58996 Free: 11236 (used 91.4% of 128KiB rom) Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- src/Kconfig | 12 +++++++++++- src/acpi.c | 2 +- 2 files changed, 12 insertions(+), 2 deletions(-)