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Marc Zyngier 354920e794 KVM: arm64: vgic: Implement SW-driven deactivation 
In order to deal with these systems that do not offer HW-based
deactivation of interrupts, let implement a SW-based approach:

- When the irq is queued into a LR, treat it as a pure virtual
  interrupt and set the EOI flag in the LR.

- When the interrupt state is read back from the LR, force a
  deactivation when the state is invalid (neither active nor
  pending)

Interrupts requiring such treatment get the VGIC_SW_RESAMPLE flag.

Signed-off-by: Marc Zyngier <maz@kernel.org>
History 2021-06-01 10:46:00 +01:00
..
arm_arch_timer.h KVM: arm64: timers: Move timer registers to the sys_regs file 2020-07-07 09:28:38 +01:00
arm_hypercalls.h KVM: arm/arm64: Factor out hypercall handling from PSCI code 2019-10-21 19:20:26 +01:00
arm_pmu.h KVM: arm64: Divorce the perf code from oprofile helpers 2021-04-22 13:32:39 +01:00
arm_psci.h KVM: arm/arm64: Factor out hypercall handling from PSCI code 2019-10-21 19:20:26 +01:00
arm_vgic.h KVM: arm64: vgic: Implement SW-driven deactivation 2021-06-01 10:46:00 +01:00
iodev.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 342 2019-06-05 17:37:07 +02:00