On Fri, Mar 05, 2021 at 10:39:58AM +0100, Ard Biesheuvel wrote: > The EFI_RT_PROPERTIES_TABLE contains a mask of runtime services that are > available after ExitBootServices(). This mostly does not concern the EFI > stub at all, given that it runs before that. However, there is one call > that is made at runtime, which is the call to SetVirtualAddressMap() > (which is not even callable at boot time to begin with) > > So add the missing handling of the RT_PROP table to ensure that we only > call SetVirtualAddressMap() if it is not being advertised as unsupported > by the firmware. > > Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> On Lenovo Yoga C630 laptop: Tested-by: Shawn Guo <shawn.guo@xxxxxxxxxx> It's a great help to dropping 'efi=novamap' kernel cmdline, which is a very nice thing for distros to support Snapdragon laptops. Thanks much, Ard! Shawn
