From: Zachary Amsden <zach@vmware.com>
To: Chris Wright <chrisw@sous-sol.org>
Cc: linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com,
virtualization@lists.osdl.org,
Ian Pratt <ian.pratt@xensource.com>,
Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Subject: Re: [RFC PATCH 30/35] Add generic_page_range() function
Date: Wed, 22 Mar 2006 00:51:37 -0800 [thread overview]
Message-ID: <44211019.60007@vmware.com> (raw)
In-Reply-To: <20060322063805.741915000@sorel.sous-sol.org>
Chris Wright wrote:
> Add a new mm function generic_page_range() which applies a given
> function to every pte in a given virtual address range in a given mm
> structure. This is a generic alternative to cut-and-pasting the Linux
> idiomatic pagetable walking code in every place that a sequence of
> PTEs must be accessed.
>
> Although this interface is intended to be useful in a wide range of
> situations, it is currently used specifically by several Xen
> subsystems, for example: to ensure that pagetables have been allocated
> for a virtual address range, and to construct batched special
> pagetable update requests to map I/O memory (in ioremap()).
>
This interface is great, and highly useful. But it doesn't seem to be
able to work on native hardware, as it doesn't support large pages.
Zach
next prev parent reply other threads:[~2006-03-22 8:51 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-22 6:30 [RFC PATCH 00/35] Xen i386 paravirtualization support Chris Wright
2006-03-22 6:30 ` [RFC PATCH 01/35] Add XEN config options and disable unsupported config options Chris Wright
2006-03-22 6:30 ` [RFC PATCH 02/35] Makefile support to build Xen subarch Chris Wright
2006-03-22 6:30 ` [RFC PATCH 03/35] Add Xen interface header files Chris Wright
2006-03-22 6:30 ` [RFC PATCH 04/35] Hypervisor " Chris Wright
2006-03-22 8:28 ` Arjan van de Ven
2006-03-22 9:31 ` Keir Fraser
2006-03-22 9:46 ` Arjan van de Ven
2006-03-22 11:32 ` David Schwartz
2006-03-22 14:29 ` Keir Fraser
2006-03-22 6:30 ` [RFC PATCH 05/35] Add sync bitops Chris Wright
2006-03-22 6:30 ` [RFC PATCH 06/35] Add vmlinuz build target Chris Wright
2006-03-22 6:30 ` [RFC PATCH 07/35] Make LOAD_OFFSET defined by subarch Chris Wright
2006-03-22 22:57 ` Dan Hecht
2006-03-27 8:18 ` Gerd Hoffmann
2006-03-22 6:30 ` [RFC PATCH 08/35] Add Xen-specific memory management definitions Chris Wright
2006-03-22 6:30 ` [RFC PATCH 09/35] Change __FIXADDR_TOP to leave room for the hypervisor Chris Wright
2006-03-22 17:27 ` Anthony Liguori
2006-03-22 17:32 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 10/35] Add a new head.S start-of-day file for booting on Xen Chris Wright
2006-03-22 13:43 ` Andi Kleen
2006-03-22 18:58 ` Chris Wright
2006-03-22 18:45 ` Andi Kleen
2006-03-22 19:26 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 11/35] Add support for Xen to entry.S Chris Wright
2006-03-22 13:55 ` Andi Kleen
2006-03-22 17:24 ` [Xen-devel] " Zachary Amsden
2006-03-22 6:30 ` [RFC PATCH 12/35] Add start-of-day setup hooks to subarch Chris Wright
2006-03-22 6:30 ` [RFC PATCH 13/35] Support loading an initrd when running on Xen Chris Wright
2006-03-22 14:22 ` Andi Kleen
2006-03-22 19:20 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 14/35] subarch modify CPU capabilities Chris Wright
2006-03-22 8:35 ` [Xen-devel] " Zachary Amsden
2006-03-22 9:33 ` Keir Fraser
2006-03-22 19:29 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 15/35] subarch support for controlling interrupt delivery Chris Wright
2006-03-22 6:30 ` [RFC PATCH 16/35] subarch support for interrupt and exception gates Chris Wright
2006-03-22 13:45 ` Andi Kleen
2006-03-22 20:54 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 17/35] Segment register changes for Xen Chris Wright
2006-03-22 14:24 ` Andi Kleen
2006-03-22 19:33 ` Chris Wright
2006-03-23 0:16 ` Zachary Amsden
2006-03-22 6:30 ` [RFC PATCH 18/35] Support gdt/idt/ldt handling on Xen Chris Wright
2006-03-22 14:30 ` Andi Kleen
2006-03-22 17:51 ` [Xen-devel] " Zachary Amsden
2006-03-22 17:36 ` Andi Kleen
2006-03-22 6:30 ` [RFC PATCH 19/35] subarch support for control register accesses Chris Wright
2006-03-22 8:55 ` Zachary Amsden
2006-03-22 21:45 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 20/35] subarch stack pointer update Chris Wright
2006-03-22 6:31 ` [RFC PATCH 21/35] subarch TLB support Chris Wright
2006-03-22 6:31 ` [RFC PATCH 22/35] subarch suport for idle loop (NO_IDLE_HZ for Xen) Chris Wright
2006-03-22 6:31 ` [RFC PATCH 23/35] Add support for Xen event channels Chris Wright
2006-03-22 8:36 ` Arjan van de Ven
2006-03-22 11:30 ` Keir Fraser
2006-03-22 14:07 ` Andi Kleen
2006-03-22 6:31 ` [RFC PATCH 24/35] subarch support for mask value for irq nubmers Chris Wright
2006-03-22 6:31 ` [RFC PATCH 25/35] Add Xen time abstractions Chris Wright
2006-03-22 8:38 ` Arjan van de Ven
2006-03-22 19:37 ` Chris Wright
2006-03-22 22:26 ` [Xen-devel] " Dan Hecht
2006-03-23 3:23 ` [Xen-devel] " Eli Collins
2006-03-23 6:47 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 26/35] Add Xen subarch reboot support Chris Wright
2006-03-22 8:40 ` Arjan van de Ven
2006-03-22 10:22 ` Keir Fraser
2006-03-22 10:39 ` Arjan van de Ven
2006-03-22 10:52 ` Keir Fraser
2006-03-22 14:21 ` Andi Kleen
2006-03-22 20:59 ` Pavel Machek
2006-03-22 6:31 ` [RFC PATCH 27/35] Add nosegneg capability to the vsyscall page notes Chris Wright
2006-03-22 6:31 ` [RFC PATCH 28/35] add support for Xen feature queries Chris Wright
2006-03-22 8:42 ` Arjan van de Ven
2006-03-22 6:31 ` [RFC PATCH 29/35] Add the Xen virtual console driver Chris Wright
2006-03-22 8:43 ` Arjan van de Ven
2006-03-22 9:29 ` Keir Fraser
2006-03-22 14:17 ` Andi Kleen
2006-03-22 16:00 ` Anthony Liguori
2006-03-22 16:07 ` Keir Fraser
2006-03-22 16:14 ` Anthony Liguori
2006-03-22 6:31 ` [RFC PATCH 30/35] Add generic_page_range() function Chris Wright
2006-03-22 8:51 ` Zachary Amsden [this message]
2006-03-22 9:27 ` [Xen-devel] " Keir Fraser
2006-03-22 11:21 ` Nick Piggin
2006-03-22 14:33 ` Keir Fraser
2006-03-22 15:35 ` Keir Fraser
2006-03-23 0:15 ` Nick Piggin
2006-03-23 0:26 ` Nick Piggin
2006-03-22 6:31 ` [RFC PATCH 31/35] Add Xen grant table support Chris Wright
2006-03-22 8:45 ` Arjan van de Ven
2006-03-22 18:38 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 32/35] Add Xen driver utility functions Chris Wright
2006-03-22 14:12 ` Andi Kleen
2006-03-22 6:31 ` [RFC PATCH 33/35] Add the Xenbus sysfs and virtual device hotplug driver Chris Wright
2006-03-22 8:53 ` Arjan van de Ven
2006-03-22 11:14 ` Keir Fraser
2006-03-22 6:31 ` [RFC PATCH 34/35] Add the Xen virtual network device driver Chris Wright
2006-03-22 8:59 ` Arjan van de Ven
2006-03-22 15:29 ` James Morris
2006-03-22 17:17 ` Stephen Hemminger
2006-03-22 6:31 ` [RFC PATCH 35/35] Add Xen virtual block " Chris Wright
2006-03-22 16:39 ` Anthony Liguori
2006-03-22 16:54 ` Christoph Hellwig
2006-03-27 8:42 ` Gerd Hoffmann
2006-03-22 17:15 ` [RFC PATCH 00/35] Xen i386 paravirtualization support Anthony Liguori
2006-03-22 17:27 ` Chris Wright
2006-03-22 17:50 ` Anthony Liguori
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