> On 1 Jul 2024, at 1:21 PM, Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > > On Mon, 1 Jul 2024 at 09:44, Lukas Wunner <lukas@xxxxxxxxx> wrote: >> >> On Mon, Jul 01, 2024 at 09:30:34AM +0200, Ard Biesheuvel wrote: >>> Assuming that Intel Macs implement the EFI SMBIOS protocol, reusing >>> the existing pieces should be rather straight-forward. Something like >>> the below should work in that case (whitespace damage courtesy of >>> gmail) >>> >>> Note that the smbios.c libstub source file needs some changes to >>> build correctly for x86 with CONFIG_EFI_MIXED=y, but I can take care >>> of that. >> >> Orlando, Aditya, could you test Ard's patch with CONFIG_EFI_MIXED=n? >> > > Yes, please test so we can check whether Intel Macs expose this > protocol in the first place. > > Note that the following hunk is needed too: > The patch works Ard Tested-by: Aditya Garg <gargaditya08@xxxxxxxx> For reference, here is kernel configuration of the kernel used to test this: https://pastebin.com/GPaxRWC6 > diff --git a/drivers/firmware/efi/libstub/Makefile > b/drivers/firmware/efi/libstub/Makefile > index 06f0428a723c..1f32d6cf98d6 100644 > --- a/drivers/firmware/efi/libstub/Makefile > +++ b/drivers/firmware/efi/libstub/Makefile > @@ -77,5 +77,5 @@ > lib-$(CONFIG_ARM) += arm32-stub.o > lib-$(CONFIG_ARM64) += kaslr.o arm64.o arm64-stub.o smbios.o > -lib-$(CONFIG_X86) += x86-stub.o > +lib-$(CONFIG_X86) += x86-stub.o smbios.o > lib-$(CONFIG_X86_64) += x86-5lvl.o > lib-$(CONFIG_RISCV) += kaslr.o riscv.o riscv-stub.o
