[SeaBIOS] [PATCH v2 5/5] acpi: add an option to disable builtin tables
Michael S. Tsirkin
mst at redhat.com
Sun Jul 7 17:42:46 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/Kconfig | 12 +++++++++++-
src/acpi.c | 2 +-
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/Kconfig b/src/Kconfig
index 5882d11..ff4c9d1 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -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.
diff --git a/src/acpi.c b/src/acpi.c
index 07d311a..2c51fd1 100644
--- a/src/acpi.c
+++ b/src/acpi.c
@@ -641,7 +641,7 @@ acpi_setup(void)
RsdpAddr = acpi_find_rsdp_rom();
- if (RsdpAddr) {
+ if (!CONFIG_ACPI_BUILTIN || RsdpAddr) {
return;
}
--
MST
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