On Thu, Mar 02, 2017 at 10:13:53AM -0500, Brijesh Singh wrote:
> From: Tom Lendacky <thomas.lendacky@xxxxxxx>
>
> In order to map BOOT data with the proper encryption bit, the
Btw, what does that all-caps spelling "BOOT" denote? Something I'm
missing?
> early_ioremap() function calls are changed to early_memremap() calls.
> This allows the proper access for both SME and SEV.
>
> Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
> ---
> arch/x86/kernel/acpi/boot.c | 4 ++--
> arch/x86/kernel/mpparse.c | 10 +++++-----
> drivers/sfi/sfi_core.c | 6 +++---
> 3 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
> index 35174c6..468c25a 100644
> --- a/arch/x86/kernel/acpi/boot.c
> +++ b/arch/x86/kernel/acpi/boot.c
> @@ -124,7 +124,7 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size)
> if (!phys || !size)
> return NULL;
>
> - return early_ioremap(phys, size);
> + return early_memremap(phys, size);
Right, the question will keep popping up why we can simply replace
memremap with ioremap and the general difference wrt to SME/SEV. So it
would be a good idea to have a comment in, say, arch/x86/mm/ioremap.c,
explaining the general situation.
Thanks.
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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