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authorRobert Walsh <robert.walsh@qlogic.com>2007-03-15 17:45:14 -0400
committerRoland Dreier <rolandd@cisco.com>2007-04-18 23:21:00 -0400
commit253fb3902008353831525ab711909abdd5ee191f (patch)
treeb34e5201de20cb4b7fa9db350f587ecac15c9033 /drivers
parentf0810daf74c564a3615eba5002cc11c21a0949ba (diff)
IB/ipath: Check reserved memory keys
Don't let userspace use the direct-physical-map L_key or R_key. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_keys.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index c93fa2f7719c..dd487c100f5b 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -133,6 +133,12 @@ int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge,
133 * being reversible by calling bus_to_virt(). 133 * being reversible by calling bus_to_virt().
134 */ 134 */
135 if (sge->lkey == 0) { 135 if (sge->lkey == 0) {
136 struct ipath_pd *pd = to_ipd(qp->ibqp.pd);
137
138 if (pd->user) {
139 ret = 0;
140 goto bail;
141 }
136 isge->mr = NULL; 142 isge->mr = NULL;
137 isge->vaddr = (void *) sge->addr; 143 isge->vaddr = (void *) sge->addr;
138 isge->length = sge->length; 144 isge->length = sge->length;
@@ -206,6 +212,12 @@ int ipath_rkey_ok(struct ipath_qp *qp, struct ipath_sge_state *ss,
206 * (see ipath_get_dma_mr and ipath_dma.c). 212 * (see ipath_get_dma_mr and ipath_dma.c).
207 */ 213 */
208 if (rkey == 0) { 214 if (rkey == 0) {
215 struct ipath_pd *pd = to_ipd(qp->ibqp.pd);
216
217 if (pd->user) {
218 ret = 0;
219 goto bail;
220 }
209 sge->mr = NULL; 221 sge->mr = NULL;
210 sge->vaddr = (void *) vaddr; 222 sge->vaddr = (void *) vaddr;
211 sge->length = len; 223 sge->length = len;