Summary Tables of Changes
10
Specification Update
NO B1 C1 D0 Plan ERRATA
AA10 X X X No
Fix
BTS (Branch Trace Store) and PEBS(Precise Event Based
Sampling) May Update Memory outside the BTS/PEBS Buffer
AA11 X X X No
Fix
Control Register 2 (CR2) Can be Updated during a REP
MOVS/STOS Instruction with Fast Strings Enabled
AA12 X X X No
Fix
REP STOS/MOVS Instructions with RCX >=2^32 May Cause a
System Hang
AA13 X X X No
Fix
A 64-Bit Value of Linear Instruction Pointer (LIP) May be
Reported Incorrectly in the Branch Trace Store (BTS) Memory
Record or in the Precise Event Based Sampling (PEBS) Memory
Record
AA14 X X X No
Fix
Access to an Unsupported Address Range in Uniprocessor (UP)
or Dual-processor (DP) Systems Supporting Intel
®
Virtualization Technology May Not Trigger Appropriate Actions
AA15 X X Fixed
VM Exit Due to a MOV from CR8 May Cause an Unexpected
Memory Access
AA16 X X X
Plan
Fix
The Processor May Incorrectly Respond to Machine Checks
during VM Entry/Exit Transitions
AA17 X X Fixed
Power Down Requests May not be Serviced if a Power Down
Transition is Interrupted by an In-Target Probe Event in the
Presence of a Specific Type of VM Exit
AA18 X X Fixed
VM EXIT Due to TPR shadow Below Threshold May Improperly
Set and Cause "Blocking by STI" actions
AA19 X X X No
Fix
Two Correctable L2 Cache Errors in Close Proximity May Cause
a System Hang
AA20 X X Fixed
A VM Exit due to SMI or INIT in Parallel with a Pending FP
Exception May Not Correctly Clear the Interruptibility State Bits
AA21
X
X
X
No Fix Processor May Hang with a 25% or Less STPCLK# Duty Cycle
AA22 X X Fixed
Attempting to Use an LDT Entry when the LDTR Has Been
Loaded with an Unusable Segment May Cause Unexpected
Memory Accesses
AA23 X X X No
Fix
Machine Check Exceptions May not Update Last-Exception
Record MSRs (LERs)
AA24 X X Fixed
VM Entry/Exit Writes to LSTAR/SYSCALL_FLAG MSR's May
Cause Incorrect Data to be Written to Bits [63:32]
AA25 X X X No
Fix
Writing the Local Vector Table (LVT) when an Interrupt is
Pending May Cause an Unexpected Interrupt
AA26 X X Fixed
At a Bus Ratio of 13:1, RCNT and Address Parity May be
Incorrect
AA27 X X Fixed
The Execution of a VMPTRLD Instruction May Cause an
Unexpected Memory Access
AA28 X X Fixed
The Execution of VMPTRLD or VMREAD May Cause an
Unexpected Memory Access
AA29 X X Fixed
On a “Failed VM-entry” VM Exit, the VMCS Pointer May have
Incorrect Value
