Re: [Xen-devel] [PATCH v7 11/36] x86/mm: Add SME support for read_cr3_pa()

[Borislav Petkov <bp@xxxxxxxxx>]

On Fri, Jun 16, 2017 at 01:51:55PM -0500, Tom Lendacky wrote:
> The cr3 register entry can contain the SME encryption mask that indicates
> the PGD is encrypted.  The encryption mask should not be used when
> creating a virtual address from the cr3 register, so remove the SME
> encryption mask in the read_cr3_pa() function.
> 
> During early boot SME will need to use a native version of read_cr3_pa(),
> so create native_read_cr3_pa().
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
> ---
>  arch/x86/include/asm/processor-flags.h |    3 ++-
>  arch/x86/include/asm/processor.h       |    5 +++++
>  2 files changed, 7 insertions(+), 1 deletion(-)

Reviewed-by: Borislav Petkov <bp@xxxxxxx>

-- 
Regards/Gruss,
    Boris.

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

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel