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-rw-r--r--src/arch/x86/include/arch/ioapic.h1
-rw-r--r--src/arch/x86/lib/ioapic.c19
2 files changed, 15 insertions, 5 deletions
diff --git a/src/arch/x86/include/arch/ioapic.h b/src/arch/x86/include/arch/ioapic.h
index 01fd753bfc..b989e527b8 100644
--- a/src/arch/x86/include/arch/ioapic.h
+++ b/src/arch/x86/include/arch/ioapic.h
@@ -39,6 +39,7 @@
#define SMI (2 << 8)
#define INT (1 << 8)
+void set_ioapic_id(u32 ioapic_base, u8 ioapic_id);
void setup_ioapic(u32 ioapic_base, u8 ioapic_id);
void clear_ioapic(u32 ioapic_base);
#endif
diff --git a/src/arch/x86/lib/ioapic.c b/src/arch/x86/lib/ioapic.c
index fc5e3072d2..6243f55f7b 100644
--- a/src/arch/x86/lib/ioapic.c
+++ b/src/arch/x86/lib/ioapic.c
@@ -74,11 +74,9 @@ void clear_ioapic(u32 ioapic_base)
}
}
-void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
+void set_ioapic_id(u32 ioapic_base, u8 ioapic_id)
{
u32 bsp_lapicid = lapicid();
- u32 low, high;
- u32 i, ioapic_interrupts;
printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n",
ioapic_base);
@@ -92,6 +90,13 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
(io_apic_read(ioapic_base, 0x00) & 0xf0ffffff) |
(ioapic_id << 24));
}
+}
+
+static void load_vectors(u32 ioapic_base)
+{
+ u32 bsp_lapicid = lapicid();
+ u32 low, high;
+ u32 i, ioapic_interrupts;
ioapic_interrupts = ioapic_interrupt_count(ioapic_base);
@@ -123,10 +128,8 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n",
0, high, low);
-
low = DISABLED;
high = NONE;
-
for (i = 1; i < ioapic_interrupts; i++) {
io_apic_write(ioapic_base, i * 2 + 0x10, low);
io_apic_write(ioapic_base, i * 2 + 0x11, high);
@@ -135,3 +138,9 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
i, high, low);
}
}
+
+void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
+{
+ set_ioapic_id(ioapic_base, ioapic_id);
+ load_vectors(ioapic_base);
+}