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KVM: arm64: nv: Document EL2 timer API

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Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20241217142321.763801-13-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Marc Zyngier 2024-12-17 14:23:20 +00:00
parent 0bc9a9e85f
commit affd1c83e0
1 changed files with 9 additions and 6 deletions
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15
Documentation/virt/kvm/devices/vcpu.rst
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@ -142,8 +142,9 @@ the cpu field to the processor id.
:Architectures: ARM64
2.1. ATTRIBUTES: KVM_ARM_VCPU_TIMER_IRQ_VTIMER, KVM_ARM_VCPU_TIMER_IRQ_PTIMER
-----------------------------------------------------------------------------
2.1. ATTRIBUTES: KVM_ARM_VCPU_TIMER_IRQ_VTIMER, KVM_ARM_VCPU_TIMER_IRQ_PTIMER,
KVM_ARM_VCPU_TIMER_IRQ_HVTIMER, KVM_ARM_VCPU_TIMER_IRQ_HPTIMER,
--------------------------------------------------------------------------------
:Parameters: in kvm_device_attr.addr the address for the timer interrupt is a
pointer to an int
@ -159,10 +160,12 @@ A value describing the architected timer interrupt number when connected to an
in-kernel virtual GIC. These must be a PPI (16 <= intid < 32). Setting the
attribute overrides the default values (see below).
============================= ==========================================
KVM_ARM_VCPU_TIMER_IRQ_VTIMER The EL1 virtual timer intid (default: 27)
KVM_ARM_VCPU_TIMER_IRQ_PTIMER The EL1 physical timer intid (default: 30)
============================= ==========================================
============================== ==========================================
KVM_ARM_VCPU_TIMER_IRQ_VTIMER The EL1 virtual timer intid (default: 27)
KVM_ARM_VCPU_TIMER_IRQ_PTIMER The EL1 physical timer intid (default: 30)
KVM_ARM_VCPU_TIMER_IRQ_HVTIMER The EL2 virtual timer intid (default: 28)
KVM_ARM_VCPU_TIMER_IRQ_HPTIMER The EL2 physical timer intid (default: 26)
============================== ==========================================
Setting the same PPI for different timers will prevent the VCPUs from running.
Setting the interrupt number on a VCPU configures all VCPUs created at that