Messages in this thread | | | Subject | Re: [PATCH v5 5/5] x86: efi: allow basic init with mixed 32/64-bit efi/kernel | From | Matt Fleming <> | Date | Wed, 15 Feb 2012 13:33:42 +0000 |
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On Sun, 2012-02-12 at 13:24 -0800, Olof Johansson wrote: > Traditionally the kernel has refused to setup EFI at all if there's been > a mismatch in 32/64-bit mode between EFI and the kernel. > > On some platforms that boot natively through EFI (Chrome OS being one), > we still need to get at least some of the static data such as memory > configuration out of EFI. Runtime services aren't as critical, and > it's a significant amount of work to implement switching between the > operating modes to call between kernel and firmware for thise cases. So > I'm ignoring it for now. > > v5: > * Fixed some printk strings based on feedback > * Renamed 32/64-bit specific types to not have _ prefix > * Fixed bug in printout of efi runtime disablement > > v4: > * Some of the earlier cleanup was accidentally reverted by this patch, fixed. > * Reworded some messages to not have to line wrap printk strings > > v3: > * Reorganized to a series of patches to make it easier to review, and > do some of the cleanups I had left out before. > > v2: > * Added graceful error handling for 32-bit kernel that gets passed > EFI data above 4GB. > * Removed some warnings that were missed in first version. > > Signed-off-by: Olof Johansson <olof@lixom.net> > --- > arch/x86/include/asm/efi.h | 2 +- > arch/x86/kernel/setup.c | 10 ++- > arch/x86/platform/efi/efi.c | 164 +++++++++++++++++++++++++++++++++++++------ > include/linux/efi.h | 45 ++++++++++++ > 4 files changed, 196 insertions(+), 25 deletions(-)
Acked-by: Matt Fleming <matt.fleming@intel.com>
-- Matt Fleming, Intel Open Source Technology Center
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