search for: f88949138058

vhost_copy_to_user is used to copy vring used elements to userspace. We should use VHOST_ADDR_USED instead of VHOST_ADDR_DESC. Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache") Signed-off-by: Eric Auger <eric.auger at redhat.com> --- This fixes a stall observed when running an aarch64 guest with virtual smmu --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/v...

vhost_copy_to_user is used to copy vring used elements to userspace. We should use VHOST_ADDR_USED instead of VHOST_ADDR_DESC. Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache") Signed-off-by: Eric Auger <eric.auger at redhat.com> --- This fixes a stall observed when running an aarch64 guest with virtual smmu --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/v...

We need to reset metadata cache during new IOTLB initialization, otherwise the stale pointers to previous IOTLB may be still accessed which will lead a use after free. Reported-by: syzbot+c51e6736a1bf614b3272 at syzkaller.appspotmail.com Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache") Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/vhost.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index a502f1a..ed31145 100644 --- a/dr...

sparse warns about converting void * to void __user *. This is not new but only got noticed now that vhost is built on more systems. This is just a question of __user tags missing in a couple of places, so fix it up. Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache") Reported-by: kbuild test robot <lkp at intel.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/vhost.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/vhost.c b/driver...

On 2018?04?11? 21:30, Eric Auger wrote: > vhost_copy_to_user is used to copy vring used elements to userspace. > We should use VHOST_ADDR_USED instead of VHOST_ADDR_DESC. > > Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache") > Signed-off-by: Eric Auger <eric.auger at redhat.com> > > --- > > This fixes a stall observed when running an aarch64 guest with > virtual smmu > --- > drivers/vhost/vhost.c | 2 +- > 1 file changed, 1 insert...