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From: Joerg Roedel <joro@8bytes.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>, "H . Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andy Lutomirski <luto@kernel.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Juergen Gross <jgross@suse.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Borislav Petkov <bp@alien8.de>, Jiri Kosina <jkosina@suse.cz>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Brian Gerst <brgerst@gmail.com>,
	David Laight <David.Laight@aculab.com>,
	Denys Vlasenko <dvlasenk@redhat.com>,
	Eduardo Valentin <eduval@amazon.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Will Deacon <will.deacon@arm.com>,
	aliguori@amazon.com, daniel.gruss@iaik.tugraz.at,
	hughd@google.com, keescook@google.com,
	Andrea Arcangeli <aarcange@redhat.com>,
	Waiman Long <llong@redhat.com>,
	jroedel@suse.de
Subject: Re: [RFC PATCH 00/16] PTI support for x86-32
Date: Wed, 17 Jan 2018 10:55:07 +0100	[thread overview]
Message-ID: <20180117095507.GM28161@8bytes.org> (raw)
In-Reply-To: <alpine.DEB.2.20.1801162212080.2366@nanos>

Hi Thomas,

thanks for your review, I'll work in your suggestions for the next post.

On Tue, Jan 16, 2018 at 10:20:40PM +0100, Thomas Gleixner wrote:
> On Tue, 16 Jan 2018, Joerg Roedel wrote:

> >  16 files changed, 333 insertions(+), 123 deletions(-)
> 
> Impressively small and well done !

Thanks :)

> Can you please make that patch set against
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-pti-for-linus
> 
> so we immediately have it backportable for 4.14 stable? It's only a trivial
> conflict in pgtable.h, but we'd like to make the life of stable as simple
> as possible. They have enough headache with the pre 4.14 trees.

Sure, will do.

> We can pick some of the simple patches which make defines and inlines
> available out of the pile right away and apply them to x86/pti to shrink
> the amount of stuff you have to worry about.

This should be patches 4, 5, 7, 11, and I think 13 is also simple
enough. Feel free to take them, but I can also carry them forward if
needed.

Thanks,

	Joerg

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  reply	other threads:[~2018-01-17  9:55 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-16 16:36 [RFC PATCH 00/16] PTI support for x86-32 Joerg Roedel
2018-01-16 16:36 ` [PATCH 01/16] x86/entry/32: Rename TSS_sysenter_sp0 to TSS_sysenter_stack Joerg Roedel
2018-01-16 18:35   ` Thomas Gleixner
2018-01-16 16:36 ` [PATCH 02/16] x86/entry/32: Enter the kernel via trampoline stack Joerg Roedel
2018-01-16 20:30   ` Thomas Gleixner
2018-01-16 22:37     ` Andy Lutomirski
2018-01-16 22:45   ` Andy Lutomirski
2018-01-17  9:18     ` Joerg Roedel
2018-01-17 18:10       ` Andy Lutomirski
2018-01-19  9:55         ` Joerg Roedel
2018-01-19 16:30           ` Andy Lutomirski
2018-01-22 10:11             ` Joerg Roedel
2018-01-22 17:46               ` Andy Lutomirski
2018-01-17  2:47   ` Boris Ostrovsky
2018-01-17  9:02     ` Joerg Roedel
2018-01-17 14:04       ` Andrew Cooper
2018-01-17 15:22         ` Boris Ostrovsky
2018-01-16 16:36 ` [PATCH 03/16] x86/entry/32: Leave the kernel via the " Joerg Roedel
2018-01-16 22:48   ` Andy Lutomirski
2018-01-17  9:24     ` Joerg Roedel
2018-01-17 13:57       ` Brian Gerst
2018-01-17 14:00         ` Brian Gerst
2018-01-17 14:14           ` Joerg Roedel
2018-01-17 14:45             ` Josh Poimboeuf
2018-01-17 14:10         ` Joerg Roedel
2018-01-17 18:12           ` Andy Lutomirski
2018-01-19  9:57             ` Joerg Roedel
2018-01-16 16:36 ` [PATCH 04/16] x86/pti: Define X86_CR3_PTI_PCID_USER_BIT on x86_32 Joerg Roedel
2018-01-16 22:46   ` Andy Lutomirski
2018-01-17  9:26     ` Joerg Roedel
2018-01-16 16:36 ` [PATCH 05/16] x86/pgtable: Move pgdp kernel/user conversion functions to pgtable.h Joerg Roedel
2018-01-16 16:36 ` [PATCH 06/16] x86/mm/ldt: Reserve high address-space range for the LDT Joerg Roedel
2018-01-16 16:52   ` Peter Zijlstra
2018-01-16 17:13     ` Joerg Roedel
2018-01-16 17:31       ` Peter Zijlstra
2018-01-16 17:34         ` Waiman Long
2018-01-16 22:51     ` Andy Lutomirski
2018-01-17  7:59       ` Peter Zijlstra
2018-01-16 16:36 ` [PATCH 07/16] x86/mm: Move two more functions from pgtable_64.h to pgtable.h Joerg Roedel
2018-01-16 18:03   ` Dave Hansen
2018-01-16 19:11     ` Joerg Roedel
2018-01-16 19:34       ` Thomas Gleixner
2018-01-16 16:36 ` [PATCH 08/16] x86/pgtable/32: Allocate 8k page-tables when PTI is enabled Joerg Roedel
2018-01-17 23:43   ` Andy Lutomirski
2018-01-19  9:57     ` Joerg Roedel
2018-01-16 16:36 ` [PATCH 09/16] x86/mm/pti: Clone CPU_ENTRY_AREA on PMD level on x86_32 Joerg Roedel
2018-01-16 21:03   ` Thomas Gleixner
2018-01-16 16:36 ` [PATCH 10/16] x86/mm/pti: Populate valid user pud entries Joerg Roedel
2018-01-16 18:06   ` Dave Hansen
2018-01-16 19:41     ` Joerg Roedel
2018-01-16 21:06   ` Thomas Gleixner
2018-01-16 16:36 ` [PATCH 11/16] x86/mm/pgtable: Move pti_set_user_pgd() to pgtable.h Joerg Roedel
2018-01-16 16:36 ` [PATCH 12/16] x86/mm/pae: Populate the user page-table with user pgd's Joerg Roedel
2018-01-16 18:11   ` Dave Hansen
2018-01-16 19:44     ` Joerg Roedel
2018-01-16 21:10   ` Thomas Gleixner
2018-01-16 21:15     ` Dave Hansen
2018-01-16 16:36 ` [PATCH 13/16] x86/mm/pti: Add an overflow check to pti_clone_pmds() Joerg Roedel
2018-01-16 16:36 ` [PATCH 14/16] x86/mm/legacy: Populate the user page-table with user pgd's Joerg Roedel
2018-01-17 23:41   ` Andy Lutomirski
2018-01-16 16:36 ` [PATCH 15/16] x86/entry/32: Switch between kernel and user cr3 on entry/exit Joerg Roedel
2018-01-16 16:36 ` [PATCH 16/16] x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 Joerg Roedel
2018-01-16 18:14 ` [RFC PATCH 00/16] PTI support for x86-32 Dave Hansen
2018-01-16 19:46   ` Joerg Roedel
2018-01-16 18:59 ` Linus Torvalds
2018-01-16 19:02   ` Dave Hansen
2018-01-16 19:21   ` Andrew Cooper
2018-01-16 19:55   ` Joerg Roedel
2018-01-16 21:20 ` Thomas Gleixner
2018-01-17  9:55   ` Joerg Roedel [this message]
2018-01-16 22:26 ` Andy Lutomirski
2018-01-17  9:33   ` Joerg Roedel
2018-01-19 10:55 ` Pavel Machek
2018-01-19 11:07   ` Joerg Roedel
2018-01-19 12:58     ` Pavel Machek
2018-01-21 20:13 ` Nadav Amit
2018-01-21 20:44   ` Nadav Amit
2018-01-21 23:46     ` Nadav Amit
2018-01-22  2:11       ` Linus Torvalds
2018-01-22  2:20         ` hpa
2018-01-22 20:14           ` Linus Torvalds
2018-01-22 21:10             ` H. Peter Anvin
2018-01-23 14:38               ` Alan Cox
2018-01-22  2:27         ` Nadav Amit
2018-01-22  8:56       ` Joerg Roedel
2018-01-23 14:57         ` Alan Cox
2018-01-25 17:09         ` Alan Cox
2018-01-26 12:36           ` Joerg Roedel
2018-01-22  9:55       ` David Laight
2018-01-22 10:04         ` Joerg Roedel
2018-01-24 18:58 ` Krzysztof Mazur
2018-01-25 22:09   ` Nadav Amit
2018-01-26  9:28     ` Krzysztof Mazur

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