From: Borislav Petkov <bp@alien8.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Khalid Aziz <khalid.aziz@oracle.com>,
juergh@gmail.com, tycho@tycho.ws, jsteckli@amazon.de,
ak@linux.intel.com, torvalds@linux-foundation.org,
liran.alon@oracle.com, keescook@google.com,
akpm@linux-foundation.org, mhocko@suse.com,
catalin.marinas@arm.com, will.deacon@arm.com, jmorris@namei.org,
konrad.wilk@oracle.com,
Juerg Haefliger <juerg.haefliger@canonical.com>,
deepa.srinivasan@oracle.com, chris.hyser@oracle.com,
tyhicks@canonical.com, dwmw@amazon.co.uk,
andrew.cooper3@citrix.com, jcm@redhat.com,
boris.ostrovsky@oracle.com, kanth.ghatraju@oracle.com,
oao.m.martins@oracle.com, jmattson@google.com,
pradeep.vincent@oracle.com, john.haxby@oracle.com,
tglx@linutronix.de, kirill.shutemov@linux.intel.com, hch@lst.de,
steven.sistare@oracle.com, labbott@redhat.com, luto@kernel.org,
dave.hansen@intel.com, kernel-hardening@lists.openwall.com,
linux-mm@kvack.org, x86@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Tycho Andersen <tycho@docker.com>,
Marco Benatto <marco.antonio.780@gmail.com>
Subject: Re: [RFC PATCH v8 03/14] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO)
Date: Thu, 14 Feb 2019 17:15:52 +0100 [thread overview]
Message-ID: <20190214161552.GF4423@zn.tnic> (raw)
In-Reply-To: <20190214105631.GJ32494@hirez.programming.kicks-ass.net>
On Thu, Feb 14, 2019 at 11:56:31AM +0100, Peter Zijlstra wrote:
> > +EXPORT_SYMBOL(xpfo_kunmap);
>
> And these here things are most definitely not IRQ-safe.
Should also be EXPORT_SYMBOL_GPL.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: mhocko@suse.com, Tycho Andersen <tycho@docker.com>,
kernel-hardening@lists.openwall.com, catalin.marinas@arm.com,
will.deacon@arm.com, dave.hansen@intel.com,
Khalid Aziz <khalid.aziz@oracle.com>,
deepa.srinivasan@oracle.com, steven.sistare@oracle.com,
tglx@linutronix.de, tycho@tycho.ws, ak@linux.intel.com,
kirill.shutemov@linux.intel.com, x86@kernel.org,
jmorris@namei.org, hch@lst.de, kanth.ghatraju@oracle.com,
jsteckli@amazon.de, labbott@redhat.com,
pradeep.vincent@oracle.com, konrad.wilk@oracle.com,
jcm@redhat.com, liran.alon@oracle.com, luto@kernel.org,
boris.ostrovsky@oracle.com, chris.hyser@oracle.com,
linux-arm-kernel@lists.infradead.org, jmattson@google.com,
Marco Benatto <marco.antonio.780@gmail.com>,
linux-mm@kvack.org, juergh@gmail.com, andrew.cooper3@citrix.com,
linux-kernel@vger.kernel.org, tyhicks@canonical.com,
john.haxby@oracle.com,
Juerg Haefliger <juerg.haefliger@canonical.com>,
oao.m.martins@oracle.com, keescook@google.com,
akpm@linux-foundation.org, torvalds@linux-foundation.org,
dwmw@amazon.co.uk
Subject: Re: [RFC PATCH v8 03/14] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO)
Date: Thu, 14 Feb 2019 17:15:52 +0100 [thread overview]
Message-ID: <20190214161552.GF4423@zn.tnic> (raw)
In-Reply-To: <20190214105631.GJ32494@hirez.programming.kicks-ass.net>
On Thu, Feb 14, 2019 at 11:56:31AM +0100, Peter Zijlstra wrote:
> > +EXPORT_SYMBOL(xpfo_kunmap);
>
> And these here things are most definitely not IRQ-safe.
Should also be EXPORT_SYMBOL_GPL.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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next prev parent reply other threads:[~2019-02-14 16:16 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 0:01 [RFC PATCH v8 00/14] Add support for eXclusive Page Frame Ownership Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 01/14] mm: add MAP_HUGETLB support to vm_mmap Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 02/14] x86: always set IF before oopsing from page fault Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 03/14] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 10:56 ` Peter Zijlstra
2019-02-14 10:56 ` Peter Zijlstra
2019-02-14 16:15 ` Borislav Petkov [this message]
2019-02-14 16:15 ` Borislav Petkov
2019-02-14 17:19 ` Khalid Aziz
2019-02-14 17:19 ` Khalid Aziz
2019-02-14 17:13 ` Khalid Aziz
2019-02-14 17:13 ` Khalid Aziz
2019-02-14 19:08 ` Peter Zijlstra
2019-02-14 19:08 ` Peter Zijlstra
2019-02-14 19:58 ` Khalid Aziz
2019-02-14 19:58 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 04/14] swiotlb: Map the buffer if it was unmapped by XPFO Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 7:47 ` Christoph Hellwig
2019-02-14 7:47 ` Christoph Hellwig
2019-02-14 16:56 ` Khalid Aziz
2019-02-14 16:56 ` Khalid Aziz
2019-02-14 17:44 ` Christoph Hellwig
2019-02-14 17:44 ` Christoph Hellwig
2019-02-14 19:48 ` Khalid Aziz
2019-02-14 19:48 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 05/14] arm64/mm: Add support for XPFO Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 06/14] xpfo: add primitives for mapping underlying memory Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 07/14] arm64/mm, xpfo: temporarily map dcache regions Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 15:54 ` Tycho Andersen
2019-02-14 15:54 ` Tycho Andersen
2019-02-14 17:29 ` Khalid Aziz
2019-02-14 17:29 ` Khalid Aziz
2019-02-14 23:49 ` Tycho Andersen
2019-02-14 23:49 ` Tycho Andersen
2019-02-14 0:01 ` [RFC PATCH v8 08/14] arm64/mm: disable section/contiguous mappings if XPFO is enabled Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-15 13:09 ` Mark Rutland
2019-02-15 13:09 ` Mark Rutland
2019-02-15 14:47 ` Khalid Aziz
2019-02-15 14:47 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 09/14] mm: add a user_virt_to_phys symbol Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 10/14] lkdtm: Add test for XPFO Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 11/14] xpfo, mm: remove dependency on CONFIG_PAGE_EXTENSION Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 12/14] xpfo, mm: optimize spinlock usage in xpfo_kunmap Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 13/14] xpfo, mm: Defer TLB flushes for non-current CPUs (x86 only) Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
2019-02-14 17:42 ` Dave Hansen
2019-02-14 17:42 ` Dave Hansen
2019-02-14 19:57 ` Khalid Aziz
2019-02-14 19:57 ` Khalid Aziz
2019-02-14 0:01 ` [RFC PATCH v8 14/14] xpfo, mm: Optimize XPFO TLB flushes by batching them together Khalid Aziz
2019-02-14 0:01 ` Khalid Aziz
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