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KVM: Documentation: Enumerate allowed value macros of irq_type

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The expression `irq_type[n]` may confuse readers to interpret `n`
as the bit position and think of CPU = 1 << 0, SPI = 1 << 1, and
PPI = 1 << 2.

Since arch/arm64/include/uapi/asm/kvm.h already has macro definitions
for the allowed values, this commit uses these symbols to clear up
the ambiguity.

Signed-off-by: Changyuan Lyu <changyuanl@google.com>
Link: https://lore.kernel.org/r/20240623164542.2999626-2-changyuanl@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Changyuan Lyu 2024-06-23 09:45:40 -07:00 committed by Oliver Upton
parent dc1d234cdd
commit 03bd36a387
1 changed files with 3 additions and 3 deletions
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6
Documentation/virt/kvm/api.rst
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@ -891,12 +891,12 @@ like this::
The irq_type field has the following values:
- irq_type[0]:
- KVM_ARM_IRQ_TYPE_CPU:
out-of-kernel GIC: irq_id 0 is IRQ, irq_id 1 is FIQ
- irq_type[1]:
- KVM_ARM_IRQ_TYPE_SPI:
in-kernel GIC: SPI, irq_id between 32 and 1019 (incl.)
(the vcpu_index field is ignored)
- irq_type[2]:
- KVM_ARM_IRQ_TYPE_PPI:
in-kernel GIC: PPI, irq_id between 16 and 31 (incl.)
(The irq_id field thus corresponds nicely to the IRQ ID in the ARM GIC specs)