GICR_INVALLR, Redistributor Invalidate All Register
The GICR_INVALLR characteristics are:
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.
A copy of this register is provided for each Redistributor.
GICR_INVALLR is a 64-bit register.
The GICR_INVALLR bit assignments are:
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
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.
GICR_INVALLR can be accessed through the memory-mapped interfaces:
This interface is accessible as follows:
- When GICD_CTLR.DS == 0b0 accesses to this register are WO.
- When IsAccessSecure() accesses to this register are WO.
- When !IsAccessSecure() accesses to this register are WO.