HW breakpoint on physical address w/ VM
Elazar Leibovich <[email protected]>
| Newsgroups | gmane.linux.region.israel |
|---|---|
| Message-ID | <CAHNTFm+ChrDpom0pHXonqZ-OcG+KVAbQ5gK_oN4TpVp+YRhmJQ@mail.gmail.com> |
Does anyone have a creative idea how to set a hardware breakpoint on physical address with a VM. In x86-64 architecture. The best idea I've had, is patching KVM, and let him pretend some non-canonical vaddress is actually a physical address (e.g., hbr *0xf00d0A-BCDE-FGHI is equiv to a breakpoint on physical address ABCDEFGHI), but I'll be happy to hear a better approach. (background, someone is messing with my page table, and I can't find out who's messing with my page table, while counting on the page table to report on page table modifications. The guest OS is not exactly linux). _______________________________________________ Linux-il mailing list [email protected] http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il