On 28.09.20 18:08, Sean Anderson wrote: >>From section 2.3.7 of the UEFI specification: > >> RISC-V UEFI will only be executed in machine mode. The machine mode has >> the highest privilege and this mode is the only mandatory privilege level >> for RISC-V platforms; all other privilege levels are optional depending >> on the platform requirements. Machine mode is the first mode entered at >> the power-on reset. This level is used in UEFI for low-level access to a >> hardware platform. > > Signed-off-by: Sean Anderson <[email protected]> > --- > > lib/efi_loader/Kconfig | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig > index bad1a29ba8..2197c84bf3 100644 > --- a/lib/efi_loader/Kconfig > +++ b/lib/efi_loader/Kconfig > @@ -10,6 +10,8 @@ config EFI_LOADER > depends on !EFI_STUB || !X86_64 || EFI_STUB_64BIT > # We need EFI_STUB_32BIT to be set on x86_32 with EFI_STUB > depends on !EFI_STUB || !X86 || X86_64 || EFI_STUB_32BIT > + # RISC-V UEFI must run in machine mode > + depends on !RISCV || RISCV_M_MODE > default y if !ARM || SYS_CPU = armv7 || SYS_CPU = armv8 > select LIB_UUID > select HAVE_BLOCK_DEVICE >
Hello Sean, the specification is wrong. A change request has been made to correct the specification. We should not change U-Boot here. See the discussion in this thread: https://lists.linaro.org/pipermail/boot-architecture/2020-September/001481.html Best regards Heinrich
