[SeaBIOS] [PATCH v3 5/5] acpi: add an option to disable builtin tables
Michael S. Tsirkin
mst at redhat.com
Sun Sep 22 15:17:28 CEST 2013
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 at redhat.com>
---
src/acpi.c | 3 +++
src/Kconfig | 12 +++++++++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/acpi.c b/src/acpi.c
index 8ec7d8d..8b562f1 100644
--- a/src/acpi.c
+++ b/src/acpi.c
@@ -632,6 +632,9 @@ acpi_setup(void)
if (!loader_err)
warn_internalerror();
+ if (!CONFIG_ACPI_BUILTIN)
+ return;
+
dprintf(3, "generate ACPI tables\n");
// This code is hardcoded for PIIX4 Power Management device.
diff --git a/src/Kconfig b/src/Kconfig
index 3a4d580..e73eecc 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -399,10 +399,20 @@ 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.
--
MST
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