Le 03/10/2015 18:19, Jean-Yves Migeon a écrit : > Regarding the code, I am almost sure that the roundup2() is a > requirement for microcode update for Intel x86 CPU. I suppose it > requires a 16-byte aligned address for the blob hence the call to > roundup2().
(answering to myself) The Intel developer manual states that: """ [...] the microcode update must be aligned on a 16-byte boundary and the size of the microcode update must be 1-KByte granular. """ That pretty much explains all. (see page 9-34, http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-system-programming-manual-325384.pdf) -- Jean-Yves Migeon
