From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: Nicholas Piggin <npiggin@gmail.com>,
Akshay Adiga <akshay.adiga@linux.vnet.ibm.com>,
benh@kernel.crashing.org, Daniel Axtens <dja@axtens.net>,
mpe@ellerman.id.au, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH 2/2] powerpc/mm/hash64: Map all the kernel mapping in the same 0xc range
Date: Tue, 19 Feb 2019 11:30:01 +0530 [thread overview]
Message-ID: <61b935a8-6fb2-e1ec-15cb-fbe4f293fe80@linux.ibm.com> (raw)
In-Reply-To: <1550555813.fmra4d124d.astroid@bobo.none>
On 2/19/19 11:28 AM, Nicholas Piggin wrote:
> Aneesh Kumar K.V's on February 17, 2019 3:16 pm:
>> This patch maps vmap, IO and vmemap regions in the 0xc address range
>> instead of the current 0xd and 0xf range. This brings the mapping closer
>> to radix translation mode.
>
> What was the reason for that address layout in the first place?
>
To bring in closer to radix translation mode and it should also help
with KASAN implementation.
-aneesh
next prev parent reply other threads:[~2019-02-19 6:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-17 5:16 [RFC PATCH 1/2] powerpc/mm/hash64: Add a variable to track the end of IO mapping Aneesh Kumar K.V
2019-02-17 5:16 ` [RFC PATCH 2/2] powerpc/mm/hash64: Map all the kernel mapping in the same 0xc range Aneesh Kumar K.V
2019-02-19 5:58 ` Nicholas Piggin
2019-02-19 6:00 ` Aneesh Kumar K.V [this message]
2019-02-19 7:01 ` Nicholas Piggin
2019-02-20 12:48 ` Michael Ellerman
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