diff options
Diffstat (limited to 'sys/amd64/amd64/apic_vector.S')
| -rw-r--r-- | sys/amd64/amd64/apic_vector.S | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/sys/amd64/amd64/apic_vector.S b/sys/amd64/amd64/apic_vector.S index e4c4ddf..96c778d 100644 --- a/sys/amd64/amd64/apic_vector.S +++ b/sys/amd64/amd64/apic_vector.S @@ -58,17 +58,15 @@ IDTVEC(vec_name) ; \ FAKE_MCOUNT(TF_RIP(%rsp)) ; \ movq lapic, %rdx ; /* pointer to local APIC */ \ movl LA_ISR + 16 * (index)(%rdx), %eax ; /* load ISR */ \ - bsrl %eax, %eax ; /* index of highset set bit in ISR */ \ - jz 2f ; \ + bsrl %eax, %eax ; /* index of highest set bit in ISR */ \ + jz 1f ; \ addl $(32 * index),%eax ; \ -1: ; \ movq %rsp, %rsi ; \ movl %eax, %edi ; /* pass the IRQ */ \ call lapic_handle_intr ; \ +1: ; \ MEXITCOUNT ; \ - jmp doreti ; \ -2: movl $-1, %eax ; /* send a vector of -1 */ \ - jmp 1b + jmp doreti /* * Handle "spurious INTerrupts". |
