Am 01.04.2016 um 13:20 hat Richard W.M. Jones geschrieben: > > My patch, plus the configuration and comments from your patch, > combined. Plus I tested it with libguestfs boot-analysis and it works > and is still fast. > > Integrating this so it happens automatically when the user adds > -kernel on x86 seems quite complicated. The only way I could do it > was by adding #ifdef defined(__x86_64__) etc to vl.c, which doesn't > seem very nice. The problem is the machine type code doesn't know > that you're using -kernel.
I would actually find it rather surprising to get differernt BIOSes and therefore potentially different behaviour for -kernel and for booting from an image. Even if we made sure that Linux really never touches the parts that you disable in bios-fast.bin, remember that -kernel is not only for Linux, but for arbitrary kernels. Requiring an explicit -bios option like you do now seems to make most sense to me: The default behaves the same as a normal boot, but if you are one of the cases that do need that additional boot speed, you can do that and consciously sacrifice the features. Kevin
