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SubjectRe: [PATCH 4.4 05/27] x86/efi: Build our own page table structures
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On Mon, 2017-12-04 at 16:59 +0100, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me know.
>
> ------------------
>
> From: Matt Fleming <matt@codeblueprint.co.uk>
>
> commit 67a9108ed4313b85a9c53406d80dc1ae3f8c3e36 upstream.
[...]

It looks like this will cause regressions unless you also apply:

21cdb6b56843 x86/mm: Page align the '_end' symbol to avoid pfn conversion bugs
b61a76f8850d x86/efi: Map RAM into the identity page table for mixed mode
753b11ef8e92 x86/efi: Setup separate EFI page tables in kexec paths

and possibly also:

08914f436bdd x86/platform/UV: Bring back the call to map_low_mmrs in uv_system_init
683ad8092cd2 x86/efi: Fix 7-parameter efi_call()s
80e75596079f efi: Convert efi_call_virt() to efi_call_virt_pointer()
d1be84a232e3 x86/uv: Update uv_bios_call() to use efi_call_virt_pointer()

Ben.

--
Ben Hutchings
Software Developer, Codethink Ltd.

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