From: stefano.stabellini@eu.citrix.com
To: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xensource.com, Jeremy.Fitzhardinge@citrix.com,
konrad.wilk@oracle.com,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Subject: [PATCH 03/12] xen/gntdev: add VM_PFNMAP to vma
Date: Mon, 10 Jan 2011 10:36:32 +0000 [thread overview]
Message-ID: <1294655801-16230-3-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1101101012190.2390@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 | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index cfe0633..fa6355a 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -564,7 +564,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
vma->vm_ops = &gntdev_vmops;
- vma->vm_flags |= VM_RESERVED|VM_DONTCOPY|VM_DONTEXPAND;
+ vma->vm_flags |= VM_RESERVED|VM_DONTCOPY|VM_DONTEXPAND|VM_PFNMAP;
vma->vm_private_data = map;
map->vma = vma;
--
1.5.6.5
next prev parent reply other threads:[~2011-01-10 10:35 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-10 10:36 [PATCH v2 00/12] xen: allow usermode to map granted pages Stefano Stabellini
2011-01-10 10:36 ` [PATCH 01/12] xen: define gnttab_set_map_op/unmap_op stefano.stabellini
2011-01-10 10:36 ` [PATCH 02/12] xen/gntdev: allow usermode to map granted pages stefano.stabellini
2011-01-10 10:36 ` stefano.stabellini [this message]
2011-01-10 10:36 ` [PATCH 04/12] xen: move p2m handling to separate file stefano.stabellini
2011-01-10 10:36 ` [PATCH 05/12] xen: add m2p override mechanism stefano.stabellini
2011-01-10 23:11 ` Konrad Rzeszutek Wilk
2011-01-11 12:44 ` Stefano Stabellini
2011-01-11 15:24 ` Konrad Rzeszutek Wilk
2011-01-10 10:36 ` [PATCH 06/12] xen: gntdev: move use of GNTMAP_contains_pte next to the map_op stefano.stabellini
2011-01-10 10:36 ` [PATCH 07/12] xen/gntdev: stop using "token" argument stefano.stabellini
2011-01-10 10:36 ` [PATCH 08/12] xen/gntdev: Fix circular locking dependency stefano.stabellini
2011-01-10 10:36 ` [PATCH 09/12] xen p2m: transparently change the p2m mappings in the m2p override stefano.stabellini
2011-01-10 10:36 ` [PATCH 10/12] xen: introduce gnttab_map_refs and gnttab_unmap_refs stefano.stabellini
2011-01-10 10:36 ` [PATCH 11/12] xen gntdev: use " stefano.stabellini
2011-01-10 10:36 ` [PATCH 12/12] xen p2m: clear the old pte when adding a page to m2p_override stefano.stabellini
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