From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Ingo Molnar <mingo@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <ak@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Andy Lutomirski <luto@amacapital.net>,
Michal Hocko <mhocko@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv4 00/14] Boot-time switching between 4- and 5-level paging
Date: Mon, 14 Aug 2017 17:30:07 +0300 [thread overview]
Message-ID: <20170814143007.oowwgfkhrppa25hk@node.shutemov.name> (raw)
In-Reply-To: <20170808125415.78842-1-kirill.shutemov@linux.intel.com>
On Tue, Aug 08, 2017 at 03:54:01PM +0300, Kirill A. Shutemov wrote:
> The basic idea is to implement the same logic as pgtable-nop4d.h provides,
> but at runtime.
>
> Runtime folding is only implemented for CONFIG_X86_5LEVEL=y case. With the
> option disabled, we do compile-time folding as before..
>
> Initially, I tried to fold pgd instread. I've got to shell, but it
> required a lot of hacks as kernel threats pgd in a special way.
>
> Please review and consider applying.
Ingo, any feedback on this?
--
Kirill A. Shutemov
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prev parent reply other threads:[~2017-08-14 14:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-08 12:54 Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 01/14] mm/sparsemem: Allocate mem_section at runtime for SPARSEMEM_EXTREME Kirill A. Shutemov
2017-08-14 14:29 ` Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 02/14] mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 03/14] x86/kasan: Use the same shadow offset for 4- and 5-level paging Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 04/14] x86/xen: Provide pre-built page tables only for XEN_PV and XEN_PVH Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 05/14] x86/xen: Drop 5-level paging support code from XEN_PV code Kirill A. Shutemov
2017-08-09 11:54 ` Juergen Gross
2017-08-08 12:54 ` [PATCHv4 06/14] x86/boot/compressed/64: Detect and handle 5-level paging at boot-time Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 07/14] x86/mm: Make virtual memory layout movable for CONFIG_X86_5LEVEL Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 08/14] x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable Kirill A. Shutemov
2017-08-17 9:00 ` Ingo Molnar
2017-08-17 10:54 ` Kirill A. Shutemov
2017-08-17 11:10 ` Ingo Molnar
2017-08-21 15:23 ` Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 09/14] x86/mm: Handle boot-time paging mode switching at early boot Kirill A. Shutemov
2017-08-17 9:05 ` Ingo Molnar
2017-08-17 9:10 ` Ingo Molnar
2017-08-08 12:54 ` [PATCHv4 10/14] x86/mm: Fold p4d page table layer at runtime Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 11/14] x86/mm: Replace compile-time checks for 5-level with runtime-time Kirill A. Shutemov
2017-08-17 9:17 ` Ingo Molnar
2017-08-08 12:54 ` [PATCHv4 12/14] x86/mm: Allow to boot without la57 if CONFIG_X86_5LEVEL=y Kirill A. Shutemov
2017-08-08 12:54 ` [PATCHv4 13/14] x86/xen: Allow XEN_PV and XEN_PVH to be enabled with X86_5LEVEL Kirill A. Shutemov
2017-08-09 11:50 ` Juergen Gross
2017-08-08 12:54 ` [PATCHv4 14/14] x86/mm: Offset boot-time paging mode switching cost Kirill A. Shutemov
2017-08-17 9:21 ` Ingo Molnar
2017-08-14 14:30 ` Kirill A. Shutemov [this message]
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