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check supportet LVT level before disabling LVT_TSR & LVT_PMV

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This commit is contained in:
Stefan Lankes 2017-07-31 01:15:25 +02:00
parent 63a19ececb
commit beb86f75a9
1 changed files with 4 additions and 2 deletions
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6
arch/x86/kernel/apic.c
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@ -1063,8 +1063,10 @@ void shutdown_system(void)
if (if_bootprocessor)
LOG_INFO("Disable APIC\n");
lapic_write(APIC_LVT_TSR, 0x10000); // disable thermal sensor interrupt
lapic_write(APIC_LVT_PMC, 0x10000); // disable performance counter interrupt
if (max_lvt >= 4)
lapic_write(APIC_LVT_TSR, 0x10000); // disable thermal sensor interrupt
if (max_lvt >= 5)
lapic_write(APIC_LVT_PMC, 0x10000); // disable performance counter interrupt
lapic_write(APIC_SVR, 0x00); // disable the apic
// disable x2APIC