[PATCH 1/2 RESEND v10] x86/mm, resource: add a new I/O resource descriptor 'IORES_DESC_RESERVED'

Borislav Petkov bp at alien8.de
Tue Apr 2 05:43:28 PDT 2019


On Tue, Apr 02, 2019 at 08:02:04PM +0800, lijiang wrote:
> These regions(E820_TYPE_{RESERVED_KERN,RAM,UNUSABLE}) are still marked as
> IORES_DESC_NONE and should not be mapped encrypted when using ioremap().

Seems to me like we're going in circles. You said here:

https://lkml.kernel.org/r/9eb61523-7a08-24c4-ac15-050537bd9203@redhat.com

that the kernel doesn't pass the e820 reserved ranges to the second
kernel.

I suggested to use a special IORES descriptor for them -
IORES_DES_RESERVED.

Now you say that that is not enough and some of those you want passed,
are still marked as IORES_DESC_NONE.

Sounds to me like you need try again.

-- 
Regards/Gruss,
    Boris.

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



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