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The GICR_INVLPIR characteristics are:
Invalidates the cached configuration data of a specified LPI, causing the GIC to reload the interrupt configuration from the physical LPI Configuration table at the address specified by GICR_PROPBASER.
A copy of this register is provided for each Redistributor.
GICR_INVLPIR is a 64-bit register.
The GICR_INVLPIR bit assignments are:
63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 |
V | RES0 | vPEID | |||||||||||||||||||||||||||||
INTID | |||||||||||||||||||||||||||||||
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Indicates whether the INTID is virtual or physical.
V | Meaning |
---|---|
0b0 | Invalidate is for a physical INTID. |
0b1 | Invalidate is for a virtual INTID. |
Reserved, RES0.
Reserved, RES0.
When GICR_INVLPIR.V == 0, this field is RES0
When GICR_INVLPIR.V == 1, this field is the target vPEID of the invalidate.
The size of this field is IMPLEMENTATION DEFINED, and is specified by the GICD_TYPER2.VIL and GICD_TYPER2.VID fields. Unimplemented bits are RES0.
Reserved, RES0.
The INTID of the physical LPI to be cleaned.
The size of this field is IMPLEMENTATION DEFINED, and is specified by the GICD_TYPER.IDbits field. Unimplemented bits are RES0.
If any LPI has been forwarded to the PE and a valid write to GICR_INVLPIR is received, the Redistributor must ensure it reloads its properties from memory and apply any changes by retrieving and reforwarding the LPI as required. This has no effect on the forwarded LPI if it has already been activated.
When written with a 32-bit write the data is zero-extended to 64 bits.
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 either:
Component | Frame | Offset | Instance |
---|---|---|---|
GIC Redistributor | RD_base | 0x00A0 | GICR_INVLPIR |
This interface is accessible as follows:
1327/1209/2019 1518:1348; 391b5248b29fb2f001ef74792eaacbd6fc72f2116134483bd14dc8c12a99c984cbfe3431cc1c9707
Copyright © 2010-2019 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.
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