[SeaBIOS] [seabios PATCH 1/2] acpi: set I/O APIC ID to 0 by default
Eduardo Habkost
ehabkost at redhat.com
Thu Jul 19 22:52:41 CEST 2012
When resetting an I/O APIC, its ID is set to 0, so set it to 0 on the
MADT table too.
Signed-off-by: Eduardo Habkost <ehabkost at redhat.com>
---
src/acpi.c | 2 +-
src/config.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/acpi.c b/src/acpi.c
index 55e4607..3f55de9 100644
--- a/src/acpi.c
+++ b/src/acpi.c
@@ -335,7 +335,7 @@ build_madt(void)
struct madt_io_apic *io_apic = (void*)apic;
io_apic->type = APIC_IO;
io_apic->length = sizeof(*io_apic);
- io_apic->io_apic_id = CountCPUs;
+ io_apic->io_apic_id = BUILD_IOAPIC_ID;
io_apic->address = cpu_to_le32(BUILD_IOAPIC_ADDR);
io_apic->interrupt = cpu_to_le32(0);
diff --git a/src/config.h b/src/config.h
index 3a70867..878c691 100644
--- a/src/config.h
+++ b/src/config.h
@@ -52,9 +52,11 @@
#define BUILD_PCIMEM64_END 0x10000000000ULL
#define BUILD_IOAPIC_ADDR 0xfec00000
+#define BUILD_IOAPIC_ID 0
#define BUILD_HPET_ADDRESS 0xfed00000
#define BUILD_APIC_ADDR 0xfee00000
+
// Important real-mode segments
#define SEG_IVT 0x0000
#define SEG_BDA 0x0040
--
1.7.10.4
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