Re: [Xen-devel] [PATCH for-4.8] x86/svm: Fix svm_nextrip_insn_length() when crossing the virtual boundary to 0

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 11/21/2016 05:40 AM, Andrew Cooper wrote:
> On 16/11/16 10:51, Andrew Cooper wrote:
>> vmcb->nextrip can legitimately be less than vmcb->rip when execution wraps
>> back around to 0.  Instead, complain if the reported length is greater than 
>> 15
>> and use x86_decode_insn() as a fallback.

Why do we need to complain? In the case that you are addressing by this
patch wouldn't that be the expected result (length>15)?

-boris


>>
>> While making changes here, fix two whitespace issues with the case labels.
>>
>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>> ---
>> CC: Jan Beulich <JBeulich@xxxxxxxx>
>> CC: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
>> CC: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
>> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> SVM maintainers, ping?


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