From: "Jan Beulich" <jbeulich@novell.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>,
Kevin Tian <kevin.tian@intel.com>
Cc: xen-devel@lists.xensource.com, Gang Wei <gang.wei@intel.com>
Subject: Re: [PATCH 1/9] Add cpu idle pwr mgmt to xen
Date: Wed, 30 Apr 2008 11:25:12 +0100 [thread overview]
Message-ID: <48186528.76E4.0078.0@novell.com> (raw)
In-Reply-To: <C43E01C7.201DC%keir.fraser@eu.citrix.com>
>>> Keir Fraser <keir.fraser@eu.citrix.com> 30.04.08 12:00 >>>
>Yes, I don't think we do partial copying anywhere right now. If we did, we
>could apply guest_handle_okay() checks explicitly before removing the
>addr-space limitation.
XENMEM_set_memory_map is one example where we do (valid here
because the E820 layout is identical for 32- and 64-bits).
>On the other hand, I don't think we have any hypercall right now where 4kB
>is likely to be too little space, and where the hypercall cannot be
>sub-divided into smaller chunks by the compat shim.
XENMEM_exchange and GNTTABOP_setup_table are examples for this.
Jan
next prev parent reply other threads:[~2008-04-30 10:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-25 5:07 [PATCH 1/9] Add cpu idle pwr mgmt to xen Wei, Gang
2008-04-25 13:00 ` Keir Fraser
2008-04-25 13:29 ` Wei, Gang
2008-04-26 9:55 ` Wei, Gang
2008-04-28 9:24 ` Jan Beulich
2008-04-30 3:27 ` Wei, Gang
2008-04-30 7:22 ` Jan Beulich
2008-04-30 8:54 ` Keir Fraser
2008-04-30 9:08 ` Wei, Gang
2008-04-30 9:12 ` Tian, Kevin
2008-04-30 9:18 ` Tian, Kevin
2008-04-30 9:35 ` Jan Beulich
2008-04-30 9:42 ` Tian, Kevin
2008-04-30 10:00 ` Keir Fraser
2008-04-30 10:25 ` Jan Beulich [this message]
2008-04-30 12:27 ` Keir Fraser
2008-04-30 10:25 ` Jan Beulich
2008-05-05 6:34 ` Tian, Kevin
2008-04-30 16:36 ` Wei, Gang
2008-05-01 0:48 ` Wei, Gang
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