Opened 15 years ago
Closed 11 years ago
#6835 closed defect (fixed)
invalid rdmsr instructions do not cause a #GP fault in the guest
| Reported by: | Tracy Camp | Owned by: | |
|---|---|---|---|
| Component: | VMM | Version: | VirtualBox 3.1.8 |
| Keywords: | MSR | Cc: | |
| Guest type: | Windows | Host type: | Windows |
Description
executing rdmsr with explicitly or implicitly invalid MSR values does not cause a #GP fault to be reflected to the guest. I primarily have noticed this within a device driver running under windows 2008r2, but this seems to be a more fundamental feature of the architecture that should not have an OS dependency.
Change History (2)
comment:1 by , 15 years ago
| Component: | VMM/HWACCM → VMM |
|---|---|
| priority: | major → minor |
comment:2 by , 11 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
The behavior was changed in VBox 4.3.x.
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True, but that's not likely to be the cause of any real world problems. Generating a #GP would cause an infinite amount of problems as many different CPU models support even more different MSRs.