charles.fis...@gdc4s.com wrote on 2012-10-11: > Signed-off-by: Charles Fisher <charles.fis...@gdc4s.com > > > > There are a couple of problems that occur with tboot. The first is on some Dell > > laptops, it is necessary to disable the legacy usb interrupts. This patch > > provides a mechanism to enable a developer to do so. > > > > The second problem is that in certain circumstances, data owners consider the > > contents of memory to be sensitive. In these cases, they require that the e820 > > map be scrubbed. The other portion of this patch provides a capability to do > > that scrub. > > > > Both options are invoked via the command line, and both default to the current > > behavior - i.e. don't disable the usb interrupts, and don't scrub the memory.
Charles, Thanks for the patch first. As to the first part of "disable the legacy usb interrupts", why not simple ask people to disable Legacy USB in BIOS for those systems? For the second part of scrub memory, the major issue is that you current code will scrub the modules(kernel, initrd, sinit, lcp data, etc) loaded into memory by bootloader for using by tboot. Then after tboot finished launching, who should it pass the control to? So my question is that have you ever tested your patch? Jimmy
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