diff options
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/amd64/lapic.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/lapic.c b/sys/arch/amd64/amd64/lapic.c index 823e830..3a87b74 100644 --- a/sys/arch/amd64/amd64/lapic.c +++ b/sys/arch/amd64/amd64/lapic.c @@ -41,6 +41,7 @@ #include <machine/cpu.h> #include <machine/msr.h> #include <machine/idt.h> +#include <machine/tss.h> #define pr_trace(fmt, ...) kprintf("lapic: " fmt, ##__VA_ARGS__) @@ -281,6 +282,7 @@ void lapic_init(void) { struct cpu_info *ci = this_cpu(); + union tss_stack tmr_stack; tmrr_status_t tmr_status; /* @@ -291,10 +293,18 @@ lapic_init(void) panic("This machine does not support LAPIC!\n"); } + /* Try to allocate LAPIC timer interrupt stack */ + if (tss_alloc_stack(&tmr_stack, DEFAULT_PAGESIZE) != 0) { + panic("Failed to allocate LAPIC TMR stack!\n"); + } + + tss_update_ist(ci, tmr_stack, IST_SCHED); + /* Allocate a vector if needed */ if (lapic_timer_vec == 0) { lapic_timer_vec = intr_alloc_vector(); - idt_set_desc(lapic_timer_vec, IDT_INT_GATE, ISR(lapic_tmr_isr), 0); + idt_set_desc(lapic_timer_vec, IDT_INT_GATE, ISR(lapic_tmr_isr), + IST_SCHED); } /* Ensure the LAPIC base is valid */ |