lkml.org 
[lkml]   [2021]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] x86/efi: select ARCH_USE_MEMREMAP_PROT
On Sat, 4 Dec 2021 at 18:42, Arnd Bergmann <arnd@kernel.org> wrote:
>
> From: Arnd Bergmann <arnd@arndb.de>
>
> The patch to map the EFI memmap as encrypted introduces a
> link failure in configurations without encryption support:
>
> x86_64-linux-ld: arch/x86/platform/efi/quirks.o: in function `efi_arch_mem_reserve':
> quirks.c:(.init.text+0x127): undefined reference to `early_memremap_prot'
>
> Select the necessary symbol here as well to fix the build.
>
> Fixes: 8f1dd76c9b55 ("x86/sme: Explicitly map new EFI memmap table as encrypted")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Thanks for the report. I'll fold this fix into the original patch instead.

> ---
> arch/x86/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 05362527f6b5..93befe25d787 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -1934,6 +1934,7 @@ config EFI
> depends on ACPI
> select UCS2_STRING
> select EFI_RUNTIME_WRAPPERS
> + select ARCH_USE_MEMREMAP_PROT
> help
> This enables the kernel to use EFI runtime services that are
> available (such as the EFI variable services).
> --
> 2.29.2
>

\
 
 \ /
  Last update: 2021-12-04 18:55    [W:0.041 / U:20.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site