On 2017/9/6 20:00, Vladimir Murzin wrote: > On 06/09/17 11:35, gengdongjiu wrote: >> Vladimir, >> >> On 2017/9/6 17:41, Vladimir Murzin wrote: >>> Can you please elaborate on cases where PAN is not enabled? >> >> I mean the informal private usage, For example, he disabled the PAN dynamically to let kernel space to access the user space. >> After he dynamic disabled the PAN, then switched to guest OS. after return to host. he found the PAN stage is modified. >> Of cause this is not a formal usage, in our host kernel, it is always enabled, no dynamic change, but I means it may exist such cases. >> >> > > So, in short, there is no real issue with PAN, right? What about UAO? For the PAN, if host OS dynamically enable/disable PAN should have issue. Do you think that is not a issue as above description? "host OS dynamically disable the PAN, but after go back from the guest OS, The PAN is unexpectedly enabled" > > Cheers > Vladimir > > . >
