On Fri, Aug 13, 2021 at 11:59:20AM -0500, Tom Lendacky wrote:
> In prep for other uses of the prot_guest_has() function besides AMD's
> memory encryption support, selectively build the AMD memory encryption
> architecture override functions only when CONFIG_AMD_MEM_ENCRYPT=y. These
> functions are:
> - early_memremap_pgprot_adjust()
> - arch_memremap_can_ram_remap()
>
> Additionally, routines that are only invoked by these architecture
> override functions can also be conditionally built. These functions are:
> - memremap_should_map_decrypted()
> - memremap_is_efi_data()
> - memremap_is_setup_data()
> - early_memremap_is_setup_data()
>
> And finally, phys_mem_access_encrypted() is conditionally built as well,
> but requires a static inline version of it when CONFIG_AMD_MEM_ENCRYPT is
> not set.
>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Borislav Petkov <bp@xxxxxxxxx>
> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Andy Lutomirski <luto@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
> ---
> arch/x86/include/asm/io.h | 8 ++++++++
> arch/x86/mm/ioremap.c | 2 +-
> 2 files changed, 9 insertions(+), 1 deletion(-)
LGTM.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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