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SubjectRe: [PATCH v6 18/34] x86/efi: Update EFI pagetable creation to work with SME
On Wed, Jun 07, 2017 at 02:16:27PM -0500, Tom Lendacky wrote:
> When SME is active, pagetable entries created for EFI need to have the
> encryption mask set as necessary.
>
> When the new pagetable pages are allocated they are mapped encrypted. So,
> update the efi_pgt value that will be used in cr3 to include the encryption
> mask so that the PGD table can be read successfully. The pagetable mapping
> as well as the kernel are also added to the pagetable mapping as encrypted.
> All other EFI mappings are mapped decrypted (tables, etc.).
>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
> arch/x86/platform/efi/efi_64.c | 15 +++++++++++----
> 1 file changed, 11 insertions(+), 4 deletions(-)

patches 15-18:

Reviewed-by: Borislav Petkov <bp@suse.de>

--
Regards/Gruss,
Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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