On 22/02/21 18:59, Kaifeng Xu wrote:
Hi,
Nice to get your replies. I am doing some research which requires me to
have some system level memory traces for all memory instructions. I want
to use that trace to do some TLB or cache studies.
Actually I don't care if I have the full PCID instruction
implementation, I just need to know the PCID of each memory access, in
order to do tagged TLB studies.
So I still have 2 questions:
1. Can I do this work in KVM mode, i.e. can plugin work in KVM mode?
No.
2. Do I need to change anything to get the right PCID? I have seen the
PCID field get set in cr3 but I am not sure it's the right one.
I think it's the right one, yes. It works mostly by chance, but it
should work for your use case.
Paolo
