CONFIG_LOAPIC_SPURIOUS_VECTOR

A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. From x86 manual Volume 3 Section 10.9.

Symbol:

LOAPIC_SPURIOUS_VECTOR
Type:

bool
Value:

“n”
User value:

(no user value)
Visibility:

“n”
Is choice item:

false
Is defined:

true
Is from env.:

false
Is special:

false
Prompts:
  • “Handle LOAPIC spurious interrupts” if LOAPIC (value: “n”)
Default values:
  • n (value: “n”)
  • Condition: LOAPIC (value: “n”)
Selects:

(no selects)
Reverse (select-related) dependencies:
 

(no reverse dependencies)
Additional dependencies from enclosing menus and ifs:
 

(no additional dependencies)
Locations:
  • ../drivers/interrupt_controller/Kconfig:37