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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-03-18 15:00:33 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-03-18 15:00:33 +0000 |
| commit | 86d8fe5e6a886883cbbf15fb8c5d7399fd50bba6 (patch) | |
| tree | 4ed5324001904721d4d5e084cd17c7baad9f2572 /tools/libxc/xc_linux.c | |
| parent | 0de39e40277b50f7bca390602216e19a809cc45c (diff) | |
| download | xen-86d8fe5e6a886883cbbf15fb8c5d7399fd50bba6.tar.gz xen-86d8fe5e6a886883cbbf15fb8c5d7399fd50bba6.tar.bz2 xen-86d8fe5e6a886883cbbf15fb8c5d7399fd50bba6.zip | |
libxc: Variable-size gntdev support
This patch adds the ability to set the number of slots that may be
used for mapping grant references, using the gntdev user-space grant
reference mapping driver.
Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk>
Diffstat (limited to 'tools/libxc/xc_linux.c')
| -rw-r--r-- | tools/libxc/xc_linux.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/libxc/xc_linux.c b/tools/libxc/xc_linux.c index 32aaab819b..b6f9b82a52 100644 --- a/tools/libxc/xc_linux.c +++ b/tools/libxc/xc_linux.c @@ -4,7 +4,7 @@ * Use is subject to license terms. * * xc_gnttab functions: - * Copyright (c) 2007, D G Murray <Derek.Murray@cl.cam.ac.uk> + * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -505,6 +505,19 @@ int xc_gnttab_munmap(int xcg_handle, return 0; } +int xc_gnttab_set_max_grants(int xcg_handle, + uint32_t count) +{ + struct ioctl_gntdev_set_max_grants set_max; + int rc; + + set_max.count = count; + if ( (rc = ioctl(xcg_handle, IOCTL_GNTDEV_SET_MAX_GRANTS, &set_max)) ) + return rc; + + return 0; +} + /* * Local variables: * mode: C |