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reset TIME_STAMP_COUNTER during boot

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Balazs Gerofi bgerofi@riken.jp
2012-11-21 15:37:39 +09:00
parent b79d20d7bf
commit b59e36e1a5
1 changed files with 5 additions and 0 deletions
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5
kernel/ap.c
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@@ -5,12 +5,15 @@
#include <aal/debug.h> #include <aal/debug.h>
#include <process.h> #include <process.h>
#include <init.h> #include <init.h>
#include <march.h>
int num_processors = 1; int num_processors = 1;
static volatile int ap_stop = 1; static volatile int ap_stop = 1;
static void ap_wait(void) static void ap_wait(void)
{ {
wrmsr(MSR_IA32_TIME_STAMP_COUNTER, 0);
while (ap_stop) { while (ap_stop) {
barrier(); barrier();
cpu_pause(); cpu_pause();
@@ -42,6 +45,8 @@ void ap_init(void)
int bsp_hw_id; int bsp_hw_id;
aal_mc_init_ap(); aal_mc_init_ap();
wrmsr(MSR_IA32_TIME_STAMP_COUNTER, 0);
cpu_info = aal_mc_get_cpu_info(); cpu_info = aal_mc_get_cpu_info();
bsp_hw_id = aal_mc_get_hardware_processor_id(); bsp_hw_id = aal_mc_get_hardware_processor_id();