RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 12:17:35 +00:00
Code Issues Activity Actions

Interrupts: Handle spurious IRQs from eoi() method

Browse source
This commit is contained in:
Liav A 2020-03-21 12:03:22 +02:00 • committed by Andreas Kling
parent 8d9b6c57b5
commit 5f579904c1
2 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

9
Kernel/Interrupts/PIC.cpp
View file

@ -137,8 +137,13 @@ void PIC::eoi(const GenericInterruptHandler& handler) const
{
InterruptDisabler disabler;
ASSERT(!is_hard_disabled());
ASSERT(handler.interrupt_number() >= gsi_base() && handler.interrupt_number() < interrupt_vectors_count());
eoi_interrupt(handler.interrupt_number());
u8 irq = handler.interrupt_number();
ASSERT(irq >= gsi_base() && irq < interrupt_vectors_count());
if ((1 << irq) & m_cached_irq_mask) {
spurious_eoi(handler);
return;
}
eoi_interrupt(irq);
}
void PIC::eoi_interrupt(u8 irq) const