[SeaBIOS] [PATCH] acpi: make default DSDT optional
Michael S. Tsirkin
mst at redhat.com
Sun Mar 17 19:32:34 CET 2013
QEMU now loads its own copy of DSDT, so let's not build in PIIX.
This leaves building in the DSDT an option, default to off.
If no one complains for a while, we'll be able to
remove this altogether.
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
src/Kconfig | 5 +++++
src/acpi.c | 7 ++++++-
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/Kconfig b/src/Kconfig
index 3141069..3be07f4 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -387,6 +387,11 @@ menu "BIOS Tables"
default y
help
Support generation of ACPI tables.
+ config ACPI_DSDT
+ bool "Include default ACPI DSDT"
+ depends on ACPI
+ help
+ Include default DSDT ACPI table in BIOS.
endmenu
source vgasrc/Kconfig
diff --git a/src/acpi.c b/src/acpi.c
index 119d1c1..69dd3aa 100644
--- a/src/acpi.c
+++ b/src/acpi.c
@@ -202,7 +202,11 @@ struct srat_memory_affinity
u32 reserved3[2];
} PACKED;
+#ifdef CONFIG_ACPI_DSDT
#include "acpi-dsdt.hex"
+#else
+static u8 AmlCode[1];
+#endif
static void
build_header(struct acpi_table_header *h, u32 sig, int len, u8 rev)
@@ -826,7 +830,8 @@ acpi_setup(void)
break;
}
}
- if (fadt && !fadt->dsdt) {
+
+ if (fadt && !fadt->dsdt && CONFIG_ACPI_DSDT) {
/* default DSDT */
void *dsdt = malloc_high(sizeof(AmlCode));
if (!dsdt) {
--
MST
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