From: David Hildenbrand <david@redhat.com>
To: Peter Xu <peterx@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Dave Jiang <dave.jiang@intel.com>,
Rik van Riel <riel@surriel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org,
Matthew Wilcox <willy@infradead.org>,
Rick P Edgecombe <rick.p.edgecombe@intel.com>,
Oscar Salvador <osalvador@suse.de>,
Mel Gorman <mgorman@techsingularity.net>,
Andrew Morton <akpm@linux-foundation.org>,
Borislav Petkov <bp@alien8.de>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Huang Ying <ying.huang@intel.com>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
Dan Williams <dan.j.williams@intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hugh Dickins <hughd@google.com>,
x86@kernel.org, Nicholas Piggin <npiggin@gmail.com>,
Vlastimil Babka <vbabka@suse.cz>, Ingo Molnar <mingo@redhat.com>
Subject: Re: [PATCH v3 6/8] mm/x86: arch_check_zapped_pud()
Date: Wed, 31 Jul 2024 14:23:27 +0200 [thread overview]
Message-ID: <a9e95e2f-ab58-469c-a66e-30ee4617ad64@redhat.com> (raw)
In-Reply-To: <20240715192142.3241557-7-peterx@redhat.com>
On 15.07.24 21:21, Peter Xu wrote:
> Introduce arch_check_zapped_pud() to sanity check shadow stack on PUD zaps.
> It has the same logic of the PMD helper.
>
> One thing to mention is, it might be a good idea to use page_table_check in
> the future for trapping wrong setups of shadow stack pgtable entries [1].
> That is left for the future as a separate effort.
>
> [1] https://lore.kernel.org/all/59d518698f664e07c036a5098833d7b56b953305.camel@intel.com
>
> Cc: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Dave Hansen <dave.hansen@linux.intel.com>
> Cc: x86@kernel.org
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2024-07-31 12:23 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-15 19:21 [PATCH v3 0/8] mm/mprotect: Fix dax puds Peter Xu
2024-07-15 19:21 ` [PATCH v3 1/8] mm/dax: Dump start address in fault handler Peter Xu
2024-07-31 12:04 ` David Hildenbrand
2024-08-02 22:43 ` Peter Xu
2024-07-15 19:21 ` [PATCH v3 2/8] mm/mprotect: Remove NUMA_HUGE_PTE_UPDATES Peter Xu
2024-07-31 12:18 ` David Hildenbrand
2024-08-04 15:06 ` Peter Xu
2024-08-06 13:02 ` David Hildenbrand
2024-08-06 16:26 ` Peter Xu
2024-08-06 16:32 ` David Hildenbrand
2024-08-06 16:51 ` Peter Xu
2024-07-15 19:21 ` [PATCH v3 3/8] mm/mprotect: Push mmu notifier to PUDs Peter Xu
2024-07-15 19:21 ` [PATCH v3 4/8] mm/powerpc: Add missing pud helpers Peter Xu
2024-07-15 19:21 ` [PATCH v3 5/8] mm/x86: Make pud_leaf() only cares about PSE bit Peter Xu
2024-07-31 12:22 ` David Hildenbrand
2024-07-15 19:21 ` [PATCH v3 6/8] mm/x86: arch_check_zapped_pud() Peter Xu
2024-07-31 12:23 ` David Hildenbrand [this message]
2024-07-15 19:21 ` [PATCH v3 7/8] mm/x86: Add missing pud helpers Peter Xu
2024-07-15 19:21 ` [PATCH v3 8/8] mm/mprotect: fix dax pud handlings Peter Xu
2024-07-25 18:29 ` James Houghton
2024-07-25 22:41 ` Peter Xu
2024-07-26 0:23 ` James Houghton
2024-07-26 11:56 ` Peter Xu
2024-07-15 20:00 ` [PATCH v3 0/8] mm/mprotect: Fix dax puds Peter Xu
2024-07-24 15:15 ` Peter Xu
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