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devices: ioapic: Always retrieve destination field on 8 bits

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When the destination mode is physical, the destination field should
only be defined through bits 56-59, as defined in the IOAPIC spec. But
from the APIC specification, the APIC ID is always defined on 8 bits no
matter which destination mode is selected. That's why we always retrieve
the destination field based on bits 56-63.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2020-10-01 14:37:52 +02:00
committed by Rob Bradford
parent a8c2d70869
commit 9dffc5da5c
2 changed files with 7 additions and 17 deletions
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2
devices/src/interrupt_controller.rs
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@@ -7,8 +7,6 @@ use std::result;
#[derive(Debug)]
pub enum Error {
/// Invalid destination mode.
InvalidDestinationMode,
/// Invalid trigger mode.
InvalidTriggerMode,
/// Invalid delivery mode.