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From: Ingo Molnar <mingo@kernel.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andy Lutomirski <luto@amacapital.net>,
	Borislav Petkov <bp@suse.de>, Andi Kleen <ak@linux.intel.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9] x86/mm: Adjust virtual address space layout in early boot
Date: Wed, 14 Feb 2018 13:10:49 +0100	[thread overview]
Message-ID: <20180214121049.z4cjsdwxaaq5gpv5@gmail.com> (raw)
In-Reply-To: <20180214111656.88514-10-kirill.shutemov@linux.intel.com>


* Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:

> We need to adjust virtual address space to support switching between
> paging modes.
> 
> The adjustment happens in __startup_64().
> 
> We also have to change KASLR code that doesn't expect variable
> VMALLOC_SIZE_TB.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
>  arch/x86/boot/compressed/kaslr.c        | 14 ++++++++--
>  arch/x86/include/asm/page_64_types.h    |  9 ++----
>  arch/x86/include/asm/pgtable_64_types.h | 25 +++++++++--------
>  arch/x86/kernel/head64.c                | 49 +++++++++++++++++++++++++++------
>  arch/x86/kernel/head_64.S               |  2 +-
>  arch/x86/mm/dump_pagetables.c           |  3 ++
>  arch/x86/mm/kaslr.c                     | 11 ++++----
>  7 files changed, 77 insertions(+), 36 deletions(-)

This is too large and risky - would it be possible to split this up into multiple, 
smaller patches?

Thanks,

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@kernel.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andy Lutomirski <luto@amacapital.net>,
	Borislav Petkov <bp@suse.de>, Andi Kleen <ak@linux.intel.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9] x86/mm: Adjust virtual address space layout in early boot
Date: Wed, 14 Feb 2018 13:10:49 +0100	[thread overview]
Message-ID: <20180214121049.z4cjsdwxaaq5gpv5@gmail.com> (raw)
In-Reply-To: <20180214111656.88514-10-kirill.shutemov@linux.intel.com>


* Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:

> We need to adjust virtual address space to support switching between
> paging modes.
> 
> The adjustment happens in __startup_64().
> 
> We also have to change KASLR code that doesn't expect variable
> VMALLOC_SIZE_TB.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
>  arch/x86/boot/compressed/kaslr.c        | 14 ++++++++--
>  arch/x86/include/asm/page_64_types.h    |  9 ++----
>  arch/x86/include/asm/pgtable_64_types.h | 25 +++++++++--------
>  arch/x86/kernel/head64.c                | 49 +++++++++++++++++++++++++++------
>  arch/x86/kernel/head_64.S               |  2 +-
>  arch/x86/mm/dump_pagetables.c           |  3 ++
>  arch/x86/mm/kaslr.c                     | 11 ++++----
>  7 files changed, 77 insertions(+), 36 deletions(-)

This is too large and risky - would it be possible to split this up into multiple, 
smaller patches?

Thanks,

	Ingo

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  reply	other threads:[~2018-02-14 12:10 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-14 11:16 [PATCH 0/9] x86/mm: Dynamic memory layout Kirill A. Shutemov
2018-02-14 11:16 ` Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 1/9] x86/mm/64: Make __PHYSICAL_MASK_SHIFT always 52 Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:04   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 2/9] mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:04   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 3/9] x86/mm: Make virtual memory layout movable for CONFIG_X86_5LEVEL Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:05   ` [tip:x86/mm] x86/mm: Make virtual memory layout dynamic for CONFIG_X86_5LEVEL=y tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 4/9] x86: Introduce pgtable_l5_enabled Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:05   ` [tip:x86/mm] x86/mm: Introduce 'pgtable_l5_enabled' tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 5/9] x86/mm: Make LDT_BASE_ADDR dynamic Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:06   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 13:32   ` [PATCH 5/9] " Kirill A. Shutemov
2018-02-14 13:32     ` Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 6/9] x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:06   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 7/9] x86/mm: Make MAX_PHYSADDR_BITS and MAX_PHYSMEM_BITS dynamic Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:07   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 11:16 ` [PATCH 8/9] x86/mm: Make __VIRTUAL_MASK_SHIFT dynamic Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 13:07   ` [tip:x86/mm] " tip-bot for Kirill A. Shutemov
2018-02-14 17:22   ` [PATCH 8/9] " Andy Lutomirski
2018-02-14 17:22     ` Andy Lutomirski
2018-02-14 17:55     ` Kirill A. Shutemov
2018-02-14 17:55       ` Kirill A. Shutemov
2018-02-14 18:02       ` Andy Lutomirski
2018-02-14 18:02         ` Andy Lutomirski
2018-02-14 11:16 ` [PATCH 9/9] x86/mm: Adjust virtual address space layout in early boot Kirill A. Shutemov
2018-02-14 11:16   ` Kirill A. Shutemov
2018-02-14 12:10   ` Ingo Molnar [this message]
2018-02-14 12:10     ` Ingo Molnar
2018-02-14 12:19     ` Kirill A. Shutemov
2018-02-14 12:19       ` Kirill A. Shutemov
2018-02-14 12:26       ` Ingo Molnar
2018-02-14 12:26         ` Ingo Molnar

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