Re: [Xen-devel] [PATCH v7 20/36] x86, mpparse: Use memremap to map the mpf and mpc data

[Borislav Petkov <bp@xxxxxxxxx>]

On Fri, Jun 16, 2017 at 01:53:38PM -0500, Tom Lendacky wrote:
> The SMP MP-table is built by UEFI and placed in memory in a decrypted
> state. These tables are accessed using a mix of early_memremap(),
> early_memunmap(), phys_to_virt() and virt_to_phys(). Change all accesses
> to use early_memremap()/early_memunmap(). This allows for proper setting
> of the encryption mask so that the data can be successfully accessed when
> SME is active.
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
> ---
>  arch/x86/kernel/mpparse.c |   98 
> ++++++++++++++++++++++++++++++++-------------
>  1 file changed, 70 insertions(+), 28 deletions(-)

Reviewed-by: Borislav Petkov <bp@xxxxxxx>

Please put the conversion to pr_fmt() on the TODO list for later.

Thanks.

-- 
Regards/Gruss,
    Boris.

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

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