From: Will Deacon <will.deacon@arm.com>
To: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
x86@kernel.org, kasan-dev@googlegroups.com,
borntraeger@de.ibm.com, heiko.carstens@de.ibm.com,
davem@davemloft.net, willy@infradead.org,
Michal Hocko <mhocko@kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
catalin.marinas@arm.com, sam@ravnborg.org,
mgorman@techsingularity.net,
Steve Sistare <steven.sistare@oracle.com>,
daniel.m.jordan@oracle.com, bob.picco@oracle.com
Subject: Re: [PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()
Date: Fri, 13 Oct 2017 17:18:09 +0100 [thread overview]
Message-ID: <20171013161809.GE4746@arm.com> (raw)
In-Reply-To: <CAOAebxv=u4cKS=_Bvyqs7pDA=5Oi0HNWvC4zRmhCiaEUMgQu3w@mail.gmail.com>
On Fri, Oct 13, 2017 at 12:00:27PM -0400, Pavel Tatashin wrote:
> BTW, don't we need the same aligments inside for_each_memblock() loop?
Hmm, yes actually, given that we shift them right for the shadow address.
> How about change kasan_map_populate() to accept regular VA start, end
> address, and convert them internally after aligning to PAGE_SIZE?
That's what my original patch did, but it doesn't help on its own because
kasan_populate_zero_shadow would need the same change.
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()
Date: Fri, 13 Oct 2017 16:18:09 +0000 [thread overview]
Message-ID: <20171013161809.GE4746@arm.com> (raw)
In-Reply-To: <CAOAebxv=u4cKS=_Bvyqs7pDA=5Oi0HNWvC4zRmhCiaEUMgQu3w@mail.gmail.com>
On Fri, Oct 13, 2017 at 12:00:27PM -0400, Pavel Tatashin wrote:
> BTW, don't we need the same aligments inside for_each_memblock() loop?
Hmm, yes actually, given that we shift them right for the shadow address.
> How about change kasan_map_populate() to accept regular VA start, end
> address, and convert them internally after aligning to PAGE_SIZE?
That's what my original patch did, but it doesn't help on its own because
kasan_populate_zero_shadow would need the same change.
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
x86@kernel.org, kasan-dev@googlegroups.com,
borntraeger@de.ibm.com, heiko.carstens@de.ibm.com,
davem@davemloft.net, willy@infradead.org,
Michal Hocko <mhocko@kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
catalin.marinas@arm.com, sam@ravnborg.org,
mgorman@techsingularity.net,
Steve Sistare <steven.sistare@oracle.com>,
daniel.m.jordan@oracle.com, bob.picco@oracle.com
Subject: Re: [PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()
Date: Fri, 13 Oct 2017 17:18:09 +0100 [thread overview]
Message-ID: <20171013161809.GE4746@arm.com> (raw)
In-Reply-To: <CAOAebxv=u4cKS=_Bvyqs7pDA=5Oi0HNWvC4zRmhCiaEUMgQu3w@mail.gmail.com>
On Fri, Oct 13, 2017 at 12:00:27PM -0400, Pavel Tatashin wrote:
> BTW, don't we need the same aligments inside for_each_memblock() loop?
Hmm, yes actually, given that we shift them right for the shadow address.
> How about change kasan_map_populate() to accept regular VA start, end
> address, and convert them internally after aligning to PAGE_SIZE?
That's what my original patch did, but it doesn't help on its own because
kasan_populate_zero_shadow would need the same change.
Will
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WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()
Date: Fri, 13 Oct 2017 17:18:09 +0100 [thread overview]
Message-ID: <20171013161809.GE4746@arm.com> (raw)
In-Reply-To: <CAOAebxv=u4cKS=_Bvyqs7pDA=5Oi0HNWvC4zRmhCiaEUMgQu3w@mail.gmail.com>
On Fri, Oct 13, 2017 at 12:00:27PM -0400, Pavel Tatashin wrote:
> BTW, don't we need the same aligments inside for_each_memblock() loop?
Hmm, yes actually, given that we shift them right for the shadow address.
> How about change kasan_map_populate() to accept regular VA start, end
> address, and convert them internally after aligning to PAGE_SIZE?
That's what my original patch did, but it doesn't help on its own because
kasan_populate_zero_shadow would need the same change.
Will
next prev parent reply other threads:[~2017-10-13 16:18 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-09 22:19 [PATCH v11 0/9] complete deferred page initialization Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 1/9] x86/mm: setting fields in deferred pages Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 2/9] sparc64/mm: " Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 3/9] sparc64: simplify vmemmap_populate Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 4/9] mm: defining memblock_virt_alloc_try_nid_raw Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 5/9] mm: zero reserved and unavailable struct pages Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-10 13:44 ` Michal Hocko
2017-10-10 13:44 ` Michal Hocko
2017-10-10 13:44 ` Michal Hocko
2017-10-10 13:44 ` Michal Hocko
2017-10-10 14:09 ` Michal Hocko
2017-10-10 14:09 ` Michal Hocko
2017-10-10 14:09 ` Michal Hocko
2017-10-10 14:09 ` Michal Hocko
2017-10-10 14:30 ` Pavel Tatashin
2017-10-10 14:30 ` Pavel Tatashin
2017-10-10 14:30 ` Pavel Tatashin
2017-10-10 14:30 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 6/9] x86/kasan: add and use kasan_map_populate() Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 7/9] arm64/kasan: " Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-10 15:56 ` Will Deacon
2017-10-10 15:56 ` Will Deacon
2017-10-10 15:56 ` Will Deacon
2017-10-10 15:56 ` Will Deacon
2017-10-10 17:07 ` Pavel Tatashin
2017-10-10 17:07 ` Pavel Tatashin
2017-10-10 17:07 ` Pavel Tatashin
2017-10-10 17:07 ` Pavel Tatashin
2017-10-10 17:10 ` Will Deacon
2017-10-10 17:10 ` Will Deacon
2017-10-10 17:10 ` Will Deacon
2017-10-10 17:10 ` Will Deacon
2017-10-10 17:41 ` Pavel Tatashin
2017-10-10 17:41 ` Pavel Tatashin
2017-10-10 17:41 ` Pavel Tatashin
2017-10-10 17:41 ` Pavel Tatashin
2017-10-13 14:10 ` Pavel Tatashin
2017-10-13 14:10 ` Pavel Tatashin
2017-10-13 14:10 ` Pavel Tatashin
2017-10-13 14:10 ` Pavel Tatashin
2017-10-13 14:43 ` Will Deacon
2017-10-13 14:43 ` Will Deacon
2017-10-13 14:43 ` Will Deacon
2017-10-13 14:43 ` Will Deacon
2017-10-13 14:56 ` Mark Rutland
2017-10-13 14:56 ` Mark Rutland
2017-10-13 14:56 ` Mark Rutland
2017-10-13 14:56 ` Mark Rutland
2017-10-13 15:02 ` Pavel Tatashin
2017-10-13 15:02 ` Pavel Tatashin
2017-10-13 15:02 ` Pavel Tatashin
2017-10-13 15:02 ` Pavel Tatashin
2017-10-13 15:09 ` Pavel Tatashin
2017-10-13 15:09 ` Pavel Tatashin
2017-10-13 15:09 ` Pavel Tatashin
2017-10-13 15:34 ` Pavel Tatashin
2017-10-13 15:34 ` Pavel Tatashin
2017-10-13 15:34 ` Pavel Tatashin
2017-10-13 15:34 ` Pavel Tatashin
2017-10-13 15:44 ` Will Deacon
2017-10-13 15:44 ` Will Deacon
2017-10-13 15:44 ` Will Deacon
2017-10-13 15:44 ` Will Deacon
2017-10-13 15:54 ` Pavel Tatashin
2017-10-13 15:54 ` Pavel Tatashin
2017-10-13 15:54 ` Pavel Tatashin
2017-10-13 15:54 ` Pavel Tatashin
2017-10-13 16:00 ` Pavel Tatashin
2017-10-13 16:00 ` Pavel Tatashin
2017-10-13 16:00 ` Pavel Tatashin
2017-10-13 16:00 ` Pavel Tatashin
2017-10-13 16:18 ` Will Deacon [this message]
2017-10-13 16:18 ` Will Deacon
2017-10-13 16:18 ` Will Deacon
2017-10-13 16:18 ` Will Deacon
2017-10-09 22:19 ` [PATCH v11 8/9] mm: stop zeroing memory during allocation in vmemmap Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` [PATCH v11 9/9] sparc64: optimized struct page zeroing Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-09 22:19 ` Pavel Tatashin
2017-10-10 14:15 ` [PATCH v11 0/9] complete deferred page initialization Michal Hocko
2017-10-10 14:15 ` Michal Hocko
2017-10-10 14:15 ` Michal Hocko
2017-10-10 14:15 ` Michal Hocko
2017-10-10 17:19 ` Pavel Tatashin
2017-10-10 17:19 ` Pavel Tatashin
2017-10-10 17:19 ` Pavel Tatashin
2017-10-10 17:19 ` Pavel Tatashin
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