efi/memreserve: deal with memreserve entries in unmapped memory

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Ensure that the EFI memreserve entries can be accessed, even if they
are located in memory that the kernel (e.g., a crashkernel) omits from
the linear map.

Fixes: 80424b02d4 ("efi: Reduce the amount of memblock reservations ...")
Cc: <stable@vger.kernel.org> # 5.0+
Reported-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Reviewed-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

...

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Ard Biesheuvel 2019-06-09 20:17:44 +02:00

parent d1fdb6d8f6

commit 18df7577ad

1 changed files with 10 additions and 2 deletions

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drivers/firmware/efi/efi.c

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