FERR Asserted Message
A FERR-asserted (legacy floating point support) message is delivered by the hypervisor after a virtual processor executes an instruction that generates an unmasked floating point error when CR0.NE is zero and the IGNNE# bit (in HvX64RegisterFpControlStatus) is zero.
The format of FERR-asserted messages is shown in the following table. The HV_X64_LEGACY_FP_ERROR_MESSAGE structure is used to encode FERR-asserted messages.
|
Message Header | |||
|
0 |
MessageType (4 bytes) |
Rsvd (3 bytes) |
PayloadSize (1 byte) |
|
8 |
SourcePartition (8 bytes) | ||
|
Legacy FP Payload | |||
|
16 |
VpIndex (4 bytes) |
Rsvd (4 bytes) | |
The following list describes the fields of FERR-asserted messages:
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Build date: 11/16/2013
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