inmates: Initialized SPIV APIC register

Do not rely on the previous user having left the APIC software-enabled
behind.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

diff --git a/inmates/apic-demo.c b/inmates/apic-demo.c
index e75a1b0d1e459769ed2ed3916634dbb502a4066c..48d62c135c4e7cd55461c45630e60f62b7cebf9d 100644 (file)
--- a/inmates/apic-demo.c
+++ b/inmates/apic-demo.c
@@ -26,6 +26,7 @@
 #define APIC_TIMER_VECTOR      32
 
 #define X2APIC_EOI             0x80b
+#define X2APIC_SPIV            0x80f
 #define X2APIC_LVTT            0x832
 #define X2APIC_TMICT           0x838
 #define X2APIC_TMCCT           0x839
@@ -93,6 +94,8 @@ static void init_apic(void)
        unsigned long start, end;
        unsigned long tmr;
 
+       write_msr(X2APIC_SPIV, 0x1ff);
+
        write_msr(X2APIC_TDCR, 3);
 
        start = read_pm_timer();