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CONFIG_IRQ_OFFLOAD_VECTOR¶
IDT vector to use for IRQ offload
Interrupt vector for irq_offload
Type: int
Help¶
Specify the IDT vector to use for the IRQ offload interrupt handler. The default should be fine for most arches, but on systems like MVIC where there is a fixed IRQ-to-vector mapping another value may be needed to avoid collision.
Help¶
This is the interrupt vector to use for the self-directed IPIs used to implement irq_offload(). Most apps will never change this. It’s configurable in case someone wants to play with its priority.
Defaults¶
- 63 if
MVIC&&IRQ_OFFLOAD&&X86 - 32 if !
MVIC&&IRQ_OFFLOAD&&X86 - 255
Kconfig definitions¶
At arch/x86/Kconfig:330
Included via Kconfig:10 → Kconfig.zephyr:29 → arch/Kconfig:15
Menu path: (top menu) → X86 Architecture Options → Processor Capabilities
config IRQ_OFFLOAD_VECTOR
int
prompt "IDT vector to use for IRQ offload" if IRQ_OFFLOAD && X86
range 32 255 if IRQ_OFFLOAD && X86
default 63 if MVIC && IRQ_OFFLOAD && X86
default 32 if !MVIC && IRQ_OFFLOAD && X86
depends on IRQ_OFFLOAD && X86
help
Specify the IDT vector to use for the IRQ offload interrupt handler.
The default should be fine for most arches, but on systems like MVIC
where there is a fixed IRQ-to-vector mapping another value may be
needed to avoid collision.
At arch/x86_64/Kconfig:25
Included via Kconfig:10 → Kconfig.zephyr:29 → arch/Kconfig:15
Menu path: (top menu)
config IRQ_OFFLOAD_VECTOR
int
prompt "Interrupt vector for irq_offload"
default 255
help
This is the interrupt vector to use for the self-directed
IPIs used to implement irq_offload(). Most apps will never
change this. It's configurable in case someone wants to
play with its priority.
(Definitions include propagated dependencies, including from if’s and menus.)