From: stefano.stabellini@eu.citrix.com
To: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xensource.com,
Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Subject: [PATCH 03/11] xen/gntdev: add VM_PFNMAP to vma
Date: Wed, 15 Dec 2010 13:40:38 +0000 [thread overview]
Message-ID: <1292420446-3348-3-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1012151259510.2390@kaball-desktop>
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
These pages are from other domains, so don't have any local PFN.
VM_PFNMAP is the closest concept Linux has to this.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
drivers/xen/gntdev.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 45898d4..cf61c7d 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -574,6 +574,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
vma->vm_flags |= VM_RESERVED;
vma->vm_flags |= VM_DONTCOPY;
vma->vm_flags |= VM_DONTEXPAND;
+ vma->vm_flags |= VM_PFNMAP;
vma->vm_private_data = map;
map->vma = vma;
--
1.5.6.5
next prev parent reply other threads:[~2010-12-15 13:40 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-15 13:39 [PATCH 00/11] xen: allow usermode to map granted pages Stefano Stabellini
2010-12-15 13:40 ` [PATCH 01/11] xen: define gnttab_set_map_op/unmap_op stefano.stabellini
2011-01-05 20:25 ` Konrad Rzeszutek Wilk
2011-01-06 9:16 ` Ian Campbell
2010-12-15 13:40 ` [PATCH 02/11] xen/gntdev: allow usermode to map granted pages stefano.stabellini
2011-01-05 20:25 ` [Xen-devel] " Konrad Rzeszutek Wilk
2011-01-06 9:21 ` [SPAM] " Ian Campbell
2011-01-10 10:33 ` [Xen-devel] " Stefano Stabellini
2010-12-15 13:40 ` stefano.stabellini [this message]
2010-12-15 13:40 ` [PATCH 04/11] xen: move p2m handling to separate file stefano.stabellini
2011-01-05 20:24 ` Konrad Rzeszutek Wilk
2010-12-15 13:40 ` [PATCH 05/11] xen: add m2p override mechanism stefano.stabellini
2010-12-15 13:40 ` [PATCH 06/11] xen: gntdev: move use of GNTMAP_contains_pte next to the map_op stefano.stabellini
2011-01-05 20:24 ` Konrad Rzeszutek Wilk
2011-01-10 10:32 ` Stefano Stabellini
2011-01-10 21:16 ` Konrad Rzeszutek Wilk
2010-12-15 13:40 ` [PATCH 07/11] xen/gntdev: stop using "token" argument stefano.stabellini
2010-12-15 13:40 ` [PATCH 08/11] xen p2m: transparently change the p2m mappings in the m2p override stefano.stabellini
2010-12-15 23:36 ` [Xen-devel] " Jeremy Fitzhardinge
2010-12-16 15:25 ` Stefano Stabellini
2011-01-05 20:24 ` Konrad Rzeszutek Wilk
2010-12-15 13:40 ` [PATCH 09/11] xen: introduce gnttab_map_refs and gnttab_unmap_refs stefano.stabellini
2011-01-05 20:23 ` Konrad Rzeszutek Wilk
2011-01-10 10:32 ` Stefano Stabellini
2010-12-15 13:40 ` [PATCH 10/11] xen gntdev: use " stefano.stabellini
2011-01-05 20:23 ` Konrad Rzeszutek Wilk
2011-01-10 10:33 ` Stefano Stabellini
2010-12-15 13:40 ` [PATCH 11/11] xen p2m: clear the old pte when adding a page to m2p_override stefano.stabellini
2011-01-05 20:23 ` Konrad Rzeszutek Wilk
2011-01-10 10:32 ` Stefano Stabellini
2010-12-15 13:43 ` [PATCH 00/11] xen: allow usermode to map granted pages Stefano Stabellini
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