maestro wrote: > You might want to consider useing the Page Directory Base Register (PDBR > aka cr3 or in qemu-x86 env->cr[3]) to idenify differnet processes. afaik > it is then OS-dependant how to get the corresponding PID. I did this for > windows and i assume it's a lot easier to do the same for linux/*BSD (as > the source is available). Since you probably will need to check for the > current process quite often, the shorter access times for this > information might come in handy.
Good idea. However, on Linux cr3 is not updated for every process. Specifically, it is not updated for kernel threads which don't have any user-space mappings of their own. This is to avoid unnecessary TLB flushes. -- Jamie _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
