From: "H. Peter Anvin" <hpa@zytor.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>, Tejun Heo <tj@kernel.org>,
Zhang Yanfei <zhangyanfei.yes@gmail.com>,
Zhang Yanfei <zhangyanfei@cn.fujitsu.com>,
Toshi Kani <toshi.kani@hp.com>, Ingo Molnar <mingo@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH part2 v2 0/8] Arrange hotpluggable memory as ZONE_MOVABLE
Date: Tue, 15 Oct 2013 10:31:10 -0700 [thread overview]
Message-ID: <525D7BDE.4070400@zytor.com> (raw)
In-Reply-To: <20131015065040.GB24584@gmail.com>
On 10/14/2013 11:50 PM, Ingo Molnar wrote:
>
> So if anyone can implement it using huge pages, with a really fast __va()
> and __pa() implementation, then it might be possible. But that's a pretty
> major surgery on x86.
>
Well, we already *have* a way to deal with that for Xen (by inserting an
otherwise nonexistent logical level.) I'm wondering if those interfaces
could be (ab)used for this as well, or if that is functionally
equivalent to saying that this should be done in a hypervisor.
-hpa
next prev parent reply other threads:[~2013-10-15 17:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-12 6:00 [PATCH part2 v2 0/8] Arrange hotpluggable memory as ZONE_MOVABLE Zhang Yanfei
2013-10-12 6:03 ` [PATCH part2 v2 1/8] x86: get pg_data_t's memory from other node Zhang Yanfei
2013-10-12 6:04 ` [PATCH part2 v2 2/8] memblock, numa: Introduce flag into memblock Zhang Yanfei
2013-10-12 6:05 ` [PATCH part2 v2 3/8] memblock, mem_hotplug: Introduce MEMBLOCK_HOTPLUG flag to mark hotpluggable regions Zhang Yanfei
2013-10-12 6:06 ` [PATCH part2 v2 4/8] memblock: Make memblock_set_node() support different memblock_type Zhang Yanfei
2013-10-12 6:07 ` [PATCH part2 v2 5/8] acpi, numa, mem_hotplug: Mark hotpluggable memory in memblock Zhang Yanfei
2013-10-12 6:08 ` [PATCH part2 v2 6/8] acpi, numa, mem_hotplug: Mark all nodes the kernel resides un-hotpluggable Zhang Yanfei
2013-10-12 6:09 ` [PATCH part2 v2 7/8] memblock, mem_hotplug: Make memblock skip hotpluggable regions if needed Zhang Yanfei
2013-10-12 6:09 ` [PATCH part2 v2 8/8] x86, numa, acpi, memory-hotplug: Make movable_node have higher priority Zhang Yanfei
[not found] ` <525B19C3.9040907@gmail.com>
[not found] ` <20131014133835.GG4722@htj.dyndns.org>
[not found] ` <525BFCF3.5010908@gmail.com>
[not found] ` <20131014142719.GI4722@htj.dyndns.org>
[not found] ` <525C02DC.4050706@gmail.com>
[not found] ` <20131014145131.GJ4722@htj.dyndns.org>
[not found] ` <525C0866.2010808@gmail.com>
[not found] ` <20131014151902.GL4722@htj.dyndns.org>
2013-10-14 15:34 ` [PATCH part2 v2 0/8] Arrange hotpluggable memory as ZONE_MOVABLE Zhang Yanfei
2013-10-14 19:34 ` Yinghai Lu
2013-10-14 20:04 ` Tejun Heo
2013-10-14 20:37 ` Yinghai Lu
2013-10-14 20:42 ` H. Peter Anvin
2013-10-15 6:50 ` Ingo Molnar
2013-10-15 17:31 ` H. Peter Anvin [this message]
2013-10-16 7:03 ` Ingo Molnar
2013-10-14 20:55 ` Tejun Heo
2013-10-15 1:40 ` Zhang Yanfei
2013-10-15 2:25 ` Yinghai Lu
2013-10-15 13:16 ` Tejun Heo
2013-10-14 20:35 ` H. Peter Anvin
2013-10-14 20:42 ` Yinghai Lu
2013-10-14 20:49 ` H. Peter Anvin
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