GICR_INVALLR, Redistributor Invalidate All Register

The GICR_INVALLR characteristics are:

Purpose

Invalidates any cached configuration data of all physical LPIs, causing the GIC to reload the interrupt configuration from the physical LPI Configuration table at the address specified by GICR_PROPBASER.

This register is part of the GIC Redistributor registers functional group.

Usage constraints

This register is accessible as follows:

Security disabledSecureNon-secure
WOWOWO

This register is mandatory in an implementation that supports LPIs and does not include an ITS. The functionality is IMPLEMENTATION DEFINED in an implementation that does include an ITS.

Writes to this register have no effect if no physical LPIs are currently stored in the local Redistributor cache.

Configuration

A copy of this register is provided for each Redistributor.

Attributes

GICR_INVALLR is a 64-bit register.

Field descriptions

The GICR_INVALLR bit assignments are:

6362616059585756555453525150494847464544434241403938373635343332
00000000000000000000000000000000
00000000000000000000000000000000
313029282726252423222120191817161514131211109876543210

Bits [63:0]

Reserved, RES0.

Note

If any LPI has been forwarded to the PE and a valid write to GICR_INVALLR is received, the Redistributor must ensure it reloads its properties from memory. This has no effect on the forwarded LPI if it has already been activated.

Accessing the GICR_INVALLR

GICR_INVALLR can be accessed through its memory-mapped interface:

ComponentFrameOffset
GIC RedistributorRD_base0x00B0-0x00B4



18/04/2017 17:00

Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. This document is Confidential.