El 15/08/17 a les 21:33, Simon Hobson ha escrit: > Narcis Garcia <informat...@actiu.net> wrote: > >> As Far As I Know, CPU makes what software asks to do. >> If software doesn't call some CPU functions, those functions will not work. > > Well, maybe, but these days you can't take that on trust. Your OS no longer > runs native on the processor - there's EFI as a shim between your code and > the processor, hence no guarantees that *ONLY* your code is running. As a > side effect, the EFI can permit or deny access to processor functions as well > - eg by disabling the virtualisation support features for "entry level" > machines. > So these days, you can't assume that there isn't any form of backdoor - with > hidden code in the EFI, using hidden functions in the CPU, and making > backdoor use of the onboard NIC to call out to someone. OK, that's perhaps > into "tinfoil hat" territory - but the point is that we can no longer > completely trust the hardware we supposedly buy (sometimes feels like rental > !) >
Isn't EFI a software installed by person who formats disk? _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
