On 08/06/14 at 02:40pm, Ard Biesheuvel wrote: > On 6 August 2014 10:38, Dave Young <dyo...@redhat.com> wrote: > > > > Adding a noefi boot param like in X86 to disable efi runtime services > > support. > > > > This will be useful for debugging uefi problems. Also it will be useful > > for later kexec/kdump work. Kexec on uefi support in X86 depends on a fixed > > vm > > area specific for uefi runtime 1:1 mapping, kernel will switch to a > > different > > page table for any uefi runtime callback in virtual mode. In arm64 similar > > work probably is necessary. But kexec boot will just works with 'noefi' with > > the limitaion of lacking runtime services. The runtime services is not > > critical > > for kdump kernel for now. So as for kexec/kdump just leave the 1:1 mapping a > > future work. > > > > Can we find a better name? You will still be using the UEFI memory map > rather than the DT memory nodes (which will have been deleted by the > stub), and things like SMBIOS and ACPI that hinge off UEFI remain > enabled as well. > Hi, Ard
Leif suggested efi=noruntime, I think that will be better to you? Thanks for review. Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
