[RFC/RFT PATCH 2/6] x86/mm/fixmap: Add GHES fixmap entries

[Borislav Petkov]

On Tue, Oct 31, 2017 at 03:38:28PM +0000, James Morse wrote:
> GHES is switching to use fixmap for its dynamic mapping of CPER records,
> to avoid using ioremap_page_range() in IRQ/NMI context.
> 
> Signed-off-by: James Morse <james.morse at arm.com>
> ---
>  arch/x86/include/asm/fixmap.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
> index dcd9fb55e679..be3cc32db7f0 100644
> --- a/arch/x86/include/asm/fixmap.h
> +++ b/arch/x86/include/asm/fixmap.h
> @@ -104,6 +104,10 @@ enum fixed_addresses {
>  	FIX_GDT_REMAP_BEGIN,
>  	FIX_GDT_REMAP_END = FIX_GDT_REMAP_BEGIN + NR_CPUS - 1,
>  
> +	/* Used for GHES mapping from assorted contexts */
> +	FIX_APEI_GHES_IRQ,
> +	FIX_APEI_GHES_NMI,

Maybe I'm missing something but shouldn't those two be inside
CONFIG_ACPI_APEI_GHES ifdeffery?

Ditto for the ARM side.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--