> On 7 aug. 2014, at 03:28, Dave Young <dyo...@redhat.com> wrote: > >> 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? >
Yes, that sounds perfect to me Ard. > 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/
