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Re: [Xen-ia64-devel] [PATCH] introduce dom0_vhpt_size_log2 boot option t

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH] introduce dom0_vhpt_size_log2 boot option to change dom0 vhpt size
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Tue, 22 Jan 2008 10:32:20 -0700
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On Mon, 2008-01-21 at 11:55 +0900, Isaku Yamahata wrote:
> On Fri, Jan 18, 2008 at 02:06:53PM -0700, Alex Williamson wrote:
> > On Fri, 2008-01-18 at 12:58 +0900, Isaku Yamahata wrote:
> > > introduce dom0_vhpt_size_log2 boot option to change dom0 vhpt size
> >    Seems like this needs a default value and maybe some sanity checking
> > for valid values.  Thanks,
> pervcpu_vhpt_alloc() takes care of those issues like domU case.
> The default value of dom0_vhpt_size_log2 is 0. In this case
> pervcpu_vhpt_alloc() sets the vhpt size to VHPT_SIZE_LOG2.
> When the value is specified, pervcpu_vhpt_alloc() calls
> canonicalize_vhpt_size() which does sanity checking.

   Thanks for the explanation.  Applied.


Alex Williamson                             HP Open Source & Linux Org.

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