Okay, git bisect says this is the first offending commit: > dc9c3ed611922e769b1fd595f8f99a93d69c026d is the first bad commit > commit dc9c3ed611922e769b1fd595f8f99a93d69c026d > Author: Borislav Petkov <b...@suse.de> > Date: Thu Oct 31 17:25:08 2013 +0100 > > x86/efi: Runtime services virtual mapping > > BugLink: http://bugs.launchpad.net/bugs/1297658 > > We map the EFI regions needed for runtime services non-contiguously, > with preserved alignment on virtual addresses starting from -4G down > for a total max space of 64G. This way, we provide for stable runtime > services addresses across kernels so that a kexec'd kernel can still use > them. > > Thus, they're mapped in a separate pagetable so that we don't pollute > the kernel namespace. > > Add an efi= kernel command line parameter for passing miscellaneous > options and chicken bits from the command line. > > While at it, add a chicken bit called "efi=old_map" which can be used as > a fallback to the old runtime services mapping method in case there's > some b0rkage with a particular EFI implementation (haha, it is hard to > hold up the sarcasm here...). > > Also, add the UEFI RT VA space to Documentation/x86/x86_64/mm.txt. > > Signed-off-by: Borislav Petkov <b...@suse.de> > Signed-off-by: Matt Fleming <matt.flem...@intel.com> > (cherry picked from commit d2f7cbe7b26a74dbbbf8f325b2a6fd01bc34032c) > Signed-off-by: Tim Gardner <tim.gard...@canonical.com> > > :040000 040000 52f7a3e427111f66f65fcb67b1d010cee7e5121f > 1200735ebee4c3272d1e3eedfc00c7150d17e276 M Documentation > :040000 040000 21376a74b6a2dc5dbe5b581677830b90bec72e49 > 95678fbb2d7178afb7866daf706dd7706d8da7e6 M arch > :040000 040000 bf1515bb7d32745424abf75d8ce58340f482e88c > 59013df8e2ea1c112d96b982105b469917864c8f M include
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1324762 Title: [MacBookPro8,1] Fails to boot without noefi since linux- image-3.13.0-20-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1324762/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
