Re: KASAN vs. boot-time switching between 4- and 5-level paging

[PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 4/8] x86/mm: Handle boot-time paging mode switching at early boot · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 8/8] x86/mm: Allow to boot without la57 if CONFIG_X86_5LEVEL=y · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 1/8] x86/boot/compressed/64: Detect and handle 5-level paging at boot-time · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 3/8] x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 6/8] x86/mm: Replace compile-time checks for 5-level with runtime-time · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 5/8] x86/mm: Fold p4d page table layer at runtime · Kirill A. Shutemov <hidden> · 2017-05-25
Re: [PATCHv1, RFC 5/8] x86/mm: Fold p4d page table layer at runtime · Brian Gerst <hidden> · 2017-05-27
Re: [PATCHv1, RFC 5/8] x86/mm: Fold p4d page table layer at runtime · Kirill A. Shutemov <hidden> · 2017-05-27
Re: [PATCHv1, RFC 5/8] x86/mm: Fold p4d page table layer at runtime · Brian Gerst <hidden> · 2017-05-27
[PATCHv1, RFC 2/8] x86/mm: Make virtual memory layout movable for CONFIG_X86_5LEVEL · Kirill A. Shutemov <hidden> · 2017-05-25
[PATCHv1, RFC 7/8] x86/mm: Hacks for boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-05-25
KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-05-27
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Dmitry Vyukov <dvyukov@google.com> · 2017-05-29
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-05-29
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Dmitry Vyukov <dvyukov@google.com> · 2017-05-29
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-05-29
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-05-29
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-06-01
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Dmitry Vyukov <dvyukov@google.com> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@amacapital.net> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@kernel.org> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-10
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@kernel.org> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@kernel.org> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-11
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-13
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-13
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-13
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-13
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-07-24
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-24
Re: KASAN vs. boot-time switching between 4- and 5-level paging · Andrey Ryabinin <hidden> · 2017-07-10
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Linus Torvalds <torvalds@linux-foundation.org> · 2017-05-25
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@kernel.org> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Kevin Easton <hidden> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Andy Lutomirski <luto@kernel.org> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Andi Kleen <hidden> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Linus Torvalds <torvalds@linux-foundation.org> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Kirill A. Shutemov <hidden> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Linus Torvalds <torvalds@linux-foundation.org> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · hpa@zytor.com · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · Dave Hansen <hidden> · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · hpa@zytor.com · 2017-05-26
Re: [PATCHv1, RFC 0/8] Boot-time switching between 4- and 5-level paging · hpa@zytor.com · 2017-05-26

From: Kirill A. Shutemov <hidden>
Date: 2017-07-24 12:13:46
Also in: linux-mm, lkml

On Thu, Jul 13, 2017 at 05:19:22PM +0300, Andrey Ryabinin wrote:

quoted

https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git/commit/?h=la57/boot-switching/v2&id=13327fec85ffe95d9c8a3f57ba174bf5d5c1fb01

quoted

As for KASAN, I think it would be better just to make it work faster,
the patch below demonstrates the idea.

Okay, let me test this.

The patch works for me.

The problem is not exclusive to 5-level paging, so could you prepare and
push proper patch upstream?

Sure, will do

Andrey, any follow up on this?

-- 
 Kirill A. Shutemov

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