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The ERR<n>FR characteristics are:
Defines whether <n> is the first record owned by a node:
If <n> is the first record owned by the node, defines which of the common architecturally-defined features are implemented by the node and, of the implemented features, which are software programmable.
This register is present only when error record <n> is implemented. Otherwise, direct accesses to ERR<n>FR are RES0.
ERR<n>FR is a 64-bit register.
The ERR<n>FR 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 |
IMPLEMENTATION DEFINED | CE | DE | UEO | UER | UEU | UC | IMPLEMENTATION DEFINED | ||||||||||||||||||||||||
FRX | RES0 | TS | CI | INJ | CEO | DUI | RP | CEC | CFI | UE | FI | UI | IMPLEMENTATION DEFINED | ED | |||||||||||||||||
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 |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Reserved, RES0.
Corrected Error recording. Describes the types of Corrected Error the node can record.
CE | Meaning |
---|---|
0b00 | The node does not record any type of Corrected Error. |
0b01 | The node can record transient or persistent Corrected Errors (Corrected Errors that are recorded as ERR<n>STATUS.CE == 0b01 and 0b11). |
0b10 | The node can record of a non-specific Corrected Error (a Corrected Error that is recorded as ERR<n>STATUS.CE == 0b10). |
0b11 | The node can record any type of Corrected Error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Deferred Error recording. Describes whether the node can record this type of error.
DE | Meaning |
---|---|
0b0 | The node does not record this type of error. |
0b1 | The node can record this type of error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Latent or Restartable Error recording. Describes whether the node can record this type of error.
UEO | Meaning |
---|---|
0b0 | The node does not record this type of error. |
0b1 | The node can record this type of error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Signaled or Recoverable Error recording. Describes whether the node can record this type of error.
UER | Meaning |
---|---|
0b0 | The node does not record this type of error. |
0b1 | The node can record this type of error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Unrecoverable Error recording. Describes whether the node can record this type of error.
UEU | Meaning |
---|---|
0b0 | The node does not record this type of error. |
0b1 | The node can record this type of error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Uncontainable Error recording. Describes whether the node can record this type of error.
UC | Meaning |
---|---|
0b0 | The node does not record this type of error. |
0b1 | The node can record this type of error. |
Reserved for identifying IMPLEMENTATION DEFINED controls.
Reserved for identifying IMPLEMENTATION DEFINED controls.
Feature Register extension. Defines whether ERR<n>FR[63:48] are architecturally defined.
FRX | Meaning |
---|---|
0b0 | ERR<n>FR[63:48] are IMPLEMENTATION DEFINED. |
0b1 | ERR<n>FR[63:48] are defined by the architecture. |
Reserved, RES0.
Reserved, RES0.
Timestamp Extension. Indicates whether, for each error record <m> owned by this node, ERR<m>MISC3 is used as the timestamp register, and, if it is, the timebase used by the timestamp.
TS | Meaning |
---|---|
0b00 | The node does not support a timestamp register. |
0b01 | The node implements a timestamp register. The timestamp uses the same timebase as the system Generic Timer. Note For an error record which has an affinity to a PE, this is the same timer that is visible through CNTPCT_EL0 at the highest Exception level on that PE. |
0b10 | The node implements a timestamp register. The timebase for the timestamp is IMPLEMENTATION DEFINED. |
All other values are reserved.
Critical error interrupt. Indicates whether the critical error interrupt and associated controls are implemented.
CI | Meaning |
---|---|
0b00 | Does not support the critical error interrupt. ERR<n>CTLR.CI is RES0. |
0b01 | Critical error interrupt is supported and always enabled. ERR<n>CTLR.CI is RES0. |
0b10 | Critical error interrupt is supported and controllable using ERR<n>CTLR.CI. |
All other values are reserved.
Fault Injection Extension. Indicates whether the RAS Common Fault Injection Model Extension is implemented.
INJ | Meaning |
---|---|
0b00 | The node does not support the RAS Common Fault Injection Model Extension. |
0b01 | The node implements the RAS Common Fault Injection Model Extension. See ERR<n>PFGF for more information. |
All other values are reserved.
Corrected Error overwrite. Indicates the behavior when a second Corrected error is detected after a first Corrected error has been recorded by an error record <m> owned by the node.
CEO | Meaning |
---|---|
0b00 | Counts Corrected errors if a counter is implemented. Keeps the previous error syndrome. If the counter overflows, or no counter is implemented, then ERR<m>STATUS.OF is set to 0b1. |
0b01 | Counts Corrected errors. If ERR<m>STATUS.OF == 0b1 before the Corrected error is counted, then keeps the previous syndrome. Otherwise the previous syndrome is overwritten. If the counter overflows, then ERR<m>STATUS.OF is set to 0b1. |
All other values are reserved.
Reserved, RES0.
Error recovery interrupt for deferred errors control. Indicates whether the control for enabling error recovery interrupts on deferred errors are implemented.
DUI | Meaning |
---|---|
0b00 | Does not support the control for enabling error recovery interrupts on deferred errors. ERR<n>CTLR.DUI is RES0. |
0b10 | Control for enabling error recovery interrupts on deferred errors is supported and controllable using ERR<n>CTLR.DUI. |
0b11 | Control for enabling error recovery interrupts on deferred errors is supported and controllable using ERR<n>CTLR.WDUI for writes and ERR<n>CTLR.RDUI for reads. |
All other values are reserved.
Reserved, RES0.
Repeat counter. Indicates whether the node implements the repeat Corrected error counter in ERR<m>MISC0 for each error record <m> owned by the node that implements the standard Corrected error counter.
RP | Meaning |
---|---|
0b0 | A single CE counter is implemented. |
0b1 | A first (repeat) counter and a second (other) counter are implemented. The repeat counter is the same size as the primary error counter. |
Reserved, RES0.
Corrected Error Counter. Indicates whether the node implements the standard Corrected error counter (CE counter) mechanisms in ERR<m>MISC0 for each error record <m> owned by the node that can record countable errors.
CEC | Meaning |
---|---|
0b000 | Does not implement the standard Corrected error counter model. |
0b010 | Implements an 8-bit Corrected error counter in ERR<m>MISC0[39:32]. |
0b100 | Implements a 16-bit Corrected error counter in ERR<m>MISC0[47:32]. |
All other values are reserved.
Implementations might include other error counter models, or might include the standard model and not indicate this in ERR<n>FR.
Fault handling interrupt for corrected errors. Indicates whether the control for enabling fault handling interrupts on corrected errors are implemented.
CFI | Meaning |
---|---|
0b00 | Does not support the control for enabling fault handling interrupts on corrected errors. ERR<n>CTLR.CFI is RES0. |
0b10 | Control for enabling fault handling interrupts on corrected errors is supported and controllable using ERR<n>CTLR.CFI. |
0b11 | Control for enabling fault handling interrupts on corrected errors is supported and controllable using ERR<n>CTLR.WCFI for writes and ERR<n>CTLR.RCFI for reads. |
All other values are reserved.
Reserved, RES0.
In-band uncorrected error reporting. Indicates whether the in-band uncorrected error reporting (External Aborts) and associated controls are implemented.
UE | Meaning |
---|---|
0b00 | Does not support the in-band uncorrected error reporting (External Aborts). ERR<n>CTLR.UE is RES0. |
0b01 | In-band uncorrected error reporting (External Aborts) is supported and always enabled. ERR<n>CTLR.UE is RES0. |
0b10 | In-band uncorrected error reporting (External Aborts) is supported and controllable using ERR<n>CTLR.UE. |
0b11 | In-band uncorrected error reporting (External Aborts) is supported and controllable using ERR<n>CTLR.WUE for writes and ERR<n>CTLR.RUE for reads. |
Fault handling interrupt. Indicates whether the fault handling interrupt and associated controls are implemented.
FI | Meaning |
---|---|
0b00 | Does not support the fault handling interrupt. ERR<n>CTLR.FI is RES0. |
0b01 | Fault handling interrupt is supported and always enabled. ERR<n>CTLR.FI is RES0. |
0b10 | Fault handling interrupt is supported and controllable using ERR<n>CTLR.FI. |
0b11 | Fault handling interrupt is supported and controllable using ERR<n>CTLR.WFI for writes and ERR<n>CTLR.RFI for reads. |
Error recovery interrupt for uncorrected errors. Indicates whether the error handling interrupt and associated controls are implemented.
UI | Meaning |
---|---|
0b00 | Does not support the error handling interrupt. ERR<n>CTLR.UI is RES0. |
0b01 | Error handling interrupt is supported and always enabled. ERR<n>CTLR.UI is RES0. |
0b10 | Error handling interrupt is supported and controllable using ERR<n>CTLR.UI. |
0b11 | Error handling interrupt is supported and controllable using ERR<n>CTLR.WUI for writes and ERR<n>CTLR.RUI for reads. |
IMPLEMENTATION DEFINED.
Error reporting and logging. Indicates whether error record <n> is the first record owned the node, and, if so, whether it implements the controls for enabling and disabling error reporting and logging.
ED | Meaning |
---|---|
0b01 | Error reporting and logging always enabled. ERR<n>CTLR.ED is RES0. |
0b10 | Error reporting and logging is controllable using ERR<n>CTLR.ED. |
All other values are reserved.
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 |
RES0 | |||||||||||||||||||||||||||||||
RES0 | ED | ||||||||||||||||||||||||||||||
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 |
Reserved, RES0.
Error reporting and logging. Indicates error record <n> is not the first record owned the node.
ED | Meaning |
---|---|
0b00 | Error record <n> is not the first record owned by the node. |
This field reads as 0b00.
Component | Offset | Instance |
---|---|---|
RAS | 0x000 + (64 * n) | ERR<n>FR |
Accesses on this interface are RO.
3001/0907/2020 15:0757; ccead0cb9f089f9ceec50268e82aec9e7104721180324f0b9997bede489cc15ad1565345720bcd2a
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