Greg Kurz 0210a8db2a vhost: Don't call access_ok() when using IOTLB ... When the IOTLB device is enabled, the vring addresses we get from userspace are GIOVAs. It is thus wrong to pass them down to access_ok() which only takes HVAs. Access validation is done at prefetch time with IOTLB. Teach vq_access_ok() about that by moving the (vq->iotlb) check from vhost_vq_access_ok() to vq_access_ok(). This prevents vhost_vring_set_addr() to fail when verifying the accesses. No behavior change for vhost_vq_access_ok(). BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1883084 Fixes: 6b1e6cc785 ("vhost: new device IOTLB API") Cc: jasowang@redhat.com CC: stable@vger.kernel.org # 4.14+ Signed-off-by: Greg Kurz <groug@kaod.org> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/160171931213.284610.2052489816407219136.stgit@bahia.lan Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2020-10-04 03:43:03 -04:00
..
iotlb.c	vhost: Fix documentation	2020-09-24 05:54:36 -04:00
Kconfig	vhost_vdpa: implement IRQ offloading in vhost_vdpa	2020-08-05 11:08:42 -04:00
Makefile	vhost: introduce vDPA-based backend	2020-04-02 10:41:40 -04:00
net.c	virtio: fixes, features	2020-08-11 14:34:17 -07:00
scsi.c	vhost/scsi: fix up req type endian-ness	2020-07-29 13:24:30 -04:00
test.c	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
test.h	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
vdpa.c	vhost vdpa: fix vhost_vdpa_open error handling	2020-09-30 11:25:06 -04:00
vhost.c	vhost: Don't call access_ok() when using IOTLB	2020-10-04 03:43:03 -04:00
vhost.h	vhost: generialize backend features setting/getting	2020-08-05 18:39:18 -04:00
vringh.c	virtio: force spec specified alignment on types	2020-06-02 02:45:13 -04:00
vsock.c	vhost: allow device that does not depend on vhost worker	2020-06-04 15:36:51 -04:00