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add the support to shutdown HermitCore

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This commit is contained in:
Stefan Lankes 2015-08-20 13:03:54 +02:00
parent 5d2d317e34
commit a04bde011f
3 changed files with 30 additions and 0 deletions
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20
hermit/arch/x86/kernel/apic.c
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@ -681,6 +681,25 @@ static void apic_err_handler(struct state *s)
kprintf("Got APIC error 0x%x\n", lapic_read(APIC_ESR));
}
static void apic_shutdown(struct state *s)
{
kprintf("Receive an IPI to shutdown HermitCore\n");
kprintf("Diable APIC timer\n");
apic_disable_timer();
kprintf("Disable APIC\n");
lapic_write(APIC_LVT_TSR, 0x10000); // disable thermal sensor interrupt
lapic_write(APIC_LVT_PMC, 0x10000); // disable performance counter interrupt
lapic_write(APIC_SVR, 0x00); // disable the apic
kprintf("System goes down...\n");
HALT;
kprintf("Ups, we should never reach this point!\n");
while(1);
}
int apic_init(void)
{
int ret;
@ -697,6 +716,7 @@ int apic_init(void)
#if MAX_CORES > 1
irq_install_handler(124, apic_tlb_handler);
#endif
irq_install_handler(122, apic_shutdown);
kprintf("Boot processor %u (ID %u)\n", boot_processor, apic_processors[boot_processor]->id);
online[boot_processor] = 1;

7
hermit/arch/x86/kernel/entry.asm
View file

@ -289,6 +289,13 @@ isrstub_pseudo_error 9
%assign i i+1
%endrep
global apic_shutdown
align 16
apic_shutdown:
push byte 0 ; pseudo error code
push byte 122
jmp common_stub
global apic_timer
align 16
apic_timer:

3
hermit/arch/x86/kernel/irq.c
View file

@ -71,6 +71,7 @@ extern void irq20(void);
extern void irq21(void);
extern void irq22(void);
extern void irq23(void);
extern void apic_shutdown(void);
extern void apic_timer(void);
extern void apic_lint0(void);
extern void apic_lint1(void);
@ -211,6 +212,8 @@ static int irq_install(void)
IDT_FLAG_PRESENT|IDT_FLAG_RING0|IDT_FLAG_32BIT|IDT_FLAG_INTTRAP);
// add APIC interrupt handler
idt_set_gate(122, (size_t)apic_shutdown, KERNEL_CODE_SELECTOR,
IDT_FLAG_PRESENT|IDT_FLAG_RING0|IDT_FLAG_32BIT|IDT_FLAG_INTTRAP);
idt_set_gate(123, (size_t)apic_timer, KERNEL_CODE_SELECTOR,
IDT_FLAG_PRESENT|IDT_FLAG_RING0|IDT_FLAG_32BIT|IDT_FLAG_INTTRAP);
idt_set_gate(124, (size_t)apic_lint0, KERNEL_CODE_SELECTOR,