From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Wei Huang <wei.huang2@amd.com>,
"'xen-devel@lists.xensource.com'" <xen-devel@lists.xensource.com>,
"Xu, Dongxiao" <dongxiao.xu@intel.com>
Subject: Re: [PATCH][1/4] Enable 1GB for Xen HVM host page
Date: Tue, 23 Feb 2010 07:56:46 +0000 [thread overview]
Message-ID: <C7A93ABE.AF26%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <4B82BC38.5090008@amd.com>
What's the performance gain from 1GB mappings in HAP tables like? What about
just the (possible) extra 1GB mapping from this particular patch? Is it
worth making guest-visible efforts like this (admittedly small) one? After
all, the probably most frequently accessed 1GB starting at address 0x0
cannot be done with a 1GB mapping and we live with it.
-- Keir
On 22/02/2010 17:17, "Wei Huang" <wei.huang2@amd.com> wrote:
> To support 1GB host page, this patch changes the MMIO starting address
> to 1GB boundary.
>
> Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
> Signed-off-by: Wei Huang <wei.huang2@amd.com>
>
next prev parent reply other threads:[~2010-02-23 7:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-22 17:17 [PATCH][1/4] Enable 1GB for Xen HVM host page Wei Huang
2010-02-23 7:56 ` Keir Fraser [this message]
2010-02-23 15:03 ` Huang2, Wei
2010-02-24 4:25 ` Xu, Dongxiao
2010-02-24 9:12 ` Keir Fraser
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