0x1 ICV_EOIR0_EL1 and ICV_EOIR1_EL1 provide priority drop functionality only.
ICV_DIR provides interrupt deactivation functionality.
VCBPR, [0]
Common Binary Point Register. Controls whether the same register is used for interrupt
preemption of both virtual Group 0 and virtual Group 1 interrupts. The possible values are:
0 ICV_BPR0_EL1 determines the preemption group for virtual Group 0 interrupts
only.
ICV_BPR1_EL1 determines the preemption group for virtual Group 1 interrupts.
1 ICV_BPR0_EL1 determines the preemption group for both virtual Group 0 and
virtual Group 1 interrupts.
Reads of ICV_BPR1_EL1 return ICV_BPR0_EL1 plus one, saturated to 111. Writes
to ICV_BPR1_EL1 are IGNORED.
Bit fields and details that are not provided in this description are architecturally defined. See the Arm
®
Generic Interrupt Controller Architecture Specification.
B4 GIC registers
B4.17 ICV_CTLR_EL1, Interrupt Controller Virtual Control Register, EL1
100798_0300_00_en Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
B4-334
Non-Confidential
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