This is page contains raw error codes. It is meant as a software developer reference, not a customer support site.
Edit: 6/7/2015 - Updated from the Windows10 SDK.
ERROR_HV_INVALID_HYPERCALL_CODE - 0xC0350002 - (2)
The hypervisor does not support the operation because the specified hypercall code is not supported.
ERROR_HV_INVALID_HYPERCALL_INPUT - 0xC0350003 - (3)
The hypervisor does not support the operation because the encoding for the hypercall input register is not supported.
ERROR_HV_INVALID_ALIGNMENT - 0xC0350004 - (4)
The hypervisor could not perform the operation beacuse a parameter has an invalid alignment.
ERROR_HV_INVALID_PARAMETER - 0xC0350005 - (5)
The hypervisor could not perform the operation beacuse an invalid parameter was specified.
ERROR_HV_ACCESS_DENIED - 0xC0350006 - (6)
Access to the specified object was denied.
ERROR_HV_INVALID_PARTITION_STATE - 0xC0350007 - (7)
The hypervisor could not perform the operation because the partition is entering or in an invalid state.
ERROR_HV_OPERATION_DENIED - 0xC0350008 - (8)
The operation is not allowed in the current state.
ERROR_HV_UNKNOWN_PROPERTY - 0xC0350009 - (9)
The hypervisor does not recognize the specified partition property.
ERROR_HV_PROPERTY_VALUE_OUT_OF_RANGE - 0xC035000A - (10)
The specified value of a partition property is out of range or violates an invariant.
ERROR_HV_INSUFFICIENT_MEMORY - 0xC035000B - (11)
There is not enough memory in the hypervisor pool to complete the operation.
ERROR_HV_PARTITION_TOO_DEEP - 0xC035000C - (12)
The maximum partition depth has been exceeded for the partition hierarchy.
ERROR_HV_INVALID_PARTITION_ID - 0xC035000D - (13)
A partition with the specified partition Id does not exist.
ERROR_HV_INVALID_VP_INDEX - 0xC035000E - (14)
The hypervisor could not perform the operation because the specified VP index is invalid.
ERROR_HV_INVALID_PORT_ID - 0xC0350011 - (17)
The hypervisor could not perform the operation because the specified port identifier is invalid.
ERROR_HV_INVALID_CONNECTION_ID - 0xC0350012 - (18)
The hypervisor could not perform the operation because the specified connection identifier is invalid.
ERROR_HV_INSUFFICIENT_BUFFERS - 0xC0350013 - (19)
Not enough buffers were supplied to send a message.
ERROR_HV_NOT_ACKNOWLEDGED - 0xC0350014 - (20)
The previous virtual interrupt has not been acknowledged.
ERROR_HV_ACKNOWLEDGED - 0xC0350016 - (22)
The previous virtual interrupt has already been acknowledged.
ERROR_HV_INVALID_SAVE_RESTORE_STATE - 0xC0350017 - (23)
The indicated partition is not in a valid state for saving or restoring.
ERROR_HV_INVALID_SYNIC_STATE - 0xC0350018 - (24)
The hypervisor could not complete the operation because a required feature of the synthetic interrupt controller (SynIC) was disabled.
ERROR_HV_OBJECT_IN_USE - 0xC0350019 - (25)
The hypervisor could not perform the operation because the object or value was either already in use or being used for a purpose that would not permit completing the operation.
ERROR_HV_INVALID_PROXIMITY_DOMAIN_INFO - 0xC035001A - (26)
The proximity domain information is invalid.
ERROR_HV_NO_DATA - 0xC035001B - (27)
An attempt to retrieve debugging data failed because none was available.
ERROR_HV_INACTIVE - 0xC035001C - (28)
The physical connection being used for debuggging has not recorded any receive activity since the last operation.
ERROR_HV_NO_RESOURCES - 0xC035001D - (29)
There are not enough resources to complete the operation.
ERROR_HV_FEATURE_UNAVAILABLE - 0xC035001E - (30)
A hypervisor feature is not available to the user.
ERROR_HV_INSUFFICIENT_BUFFER - 0xC0350033 - (51)
The specified buffer was too small to contain all of the requested data.
ERROR_HV_INSUFFICIENT_DEVICE_DOMAINS - 0xC0350038 - (56)
The maximum number of domains supported by the platform I/O remapping hardware is currently in use. No domains are available to assign this device to this partition.
ERROR_HV_CPUID_FEATURE_VALIDATION - 0xC035003C - (60)
Validation of CPUID data of the processor failed.
ERROR_HV_CPUID_XSAVE_FEATURE_VALIDATION - 0xC035003D - (61)
Validation of XSAVE CPUID data of the processor failed.
ERROR_HV_PROCESSOR_STARTUP_TIMEOUT - 0xC035003E - (62)
Processor did not respond within the timeout period.
ERROR_HV_SMX_ENABLED - 0xC035003F - (63)
SMX has been enabled in the BIOS.
ERROR_HV_INVALID_LP_INDEX - 0xC0350041 - (65)
The hypervisor could not perform the operation because the specified LP index is invalid.
ERROR_HV_INVALID_REGISTER_VALUE - 0xC0350050 - (80)
The supplied register value is invalid.
ERROR_HV_INVALID_VTL_STATE - 0xC0350051 - (81)
The supplied virtual trust level is not in the correct state to perform the requested operation.
ERROR_HV_NX_NOT_DETECTED - 0xC0350055 - (85)
No execute feature (NX) is not present or not enabled in the BIOS.
ERROR_HV_INVALID_DEVICE_ID - 0xC0350057 - (87)
The supplied device ID is invalid.
ERROR_HV_INVALID_DEVICE_STATE - 0xC0350058 - (88)
The operation is not allowed in the current device state.
ERROR_HV_PENDING_PAGE_REQUESTS - 0x00350059 - (89)
The device had pending page requests which were discarded.
ERROR_HV_PAGE_REQUEST_INVALID - 0xC0350060 - (96)
The supplied page request specifies a memory access that the guest does not have permissions to perform.
ERROR_HV_NOT_PRESENT - 0xC0351000 - (4096)
No hypervisor is present on this system.