[PATCH 4/8] Initialize the LINT LVTs on the local APIC of the BSP. Since the APIC is enabled, we need to initialize LINT0 to ExtINT and LINT1 to NMI.

[Magnus Christensson]

---
 src/smp.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/smp.c b/src/smp.c
index 71b0da8..b0852f8 100644
--- a/src/smp.c
+++ b/src/smp.c
@@ -13,6 +13,8 @@

#define APIC_ICR_LOW ((u8*)BUILD_APIC_ADDR + 0x300)
 #define APIC_SVR     ((u8*)BUILD_APIC_ADDR + 0x0F0)
+#define APIC_LINT0   ((u8*)BUILD_APIC_ADDR + 0x350)
+#define APIC_LINT1   ((u8*)BUILD_APIC_ADDR + 0x360)

#define APIC_ENABLED 0x0100

@@ -91,6 +93,12 @@ smp_probe(void)
     u32 val = readl(APIC_SVR);
     writel(APIC_SVR, val | APIC_ENABLED);

+    /* Set LINT0 as Ext_INT, level triggered */
+    writel(APIC_LINT0, 0x8700);
+
+    /* Set LINT1 as NMI, level triggered */
+    writel(APIC_LINT1, 0x8400);
+
     // broadcast SIPI
     writel(APIC_ICR_LOW, 0x000C4500);
     u32 sipi_vector = BUILD_AP_BOOT_ADDR >> 12;