search for: vhost_vring_set_addr

...host/vhost.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index b45519ca66a7..6296e33df31d 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1509,7 +1509,10 @@ static long vhost_vring_set_addr(struct vhost_dev *d, > * If it is not, we don't as size might not have been setup. > * We will verify when backend is configured. */ > if (vq->private_data) { > - if (!vq_access_ok(vq, vq->num, > + /* If an IOTLB device is present, the vring addresses are > +...

...host/vhost.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index b45519ca66a7..6296e33df31d 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1509,7 +1509,10 @@ static long vhost_vring_set_addr(struct vhost_dev *d, > * If it is not, we don't as size might not have been setup. > * We will verify when backend is configured. */ > if (vq->private_data) { > - if (!vq_access_ok(vq, vq->num, > + /* If an IOTLB device is present, the vring addresses are > +...

...ING_NUM: feebcaeac79ad8 Jason Wang 2019-05-24 1505 r = vhost_vring_set_num(d, vq, argp); feebcaeac79ad8 Jason Wang 2019-05-24 1506 break; feebcaeac79ad8 Jason Wang 2019-05-24 1507 case VHOST_SET_VRING_ADDR: feebcaeac79ad8 Jason Wang 2019-05-24 1508 r = vhost_vring_set_addr(d, vq, argp); feebcaeac79ad8 Jason Wang 2019-05-24 1509 break; feebcaeac79ad8 Jason Wang 2019-05-24 1510 default: feebcaeac79ad8 Jason Wang 2019-05-24 1511 BUG(); feebcaeac79ad8 Jason Wang 2019-05-24 1512 } feebcaeac79ad8 Jason Wang 2019-05-24...

This series tries to access virtqueue metadata through kernel virtual address instead of copy_user() friends since they had too much overheads like checks, spec barriers or even hardware feature toggling. This is done through setup kernel address through direct mapping and co-opreate VM management with MMU notifiers. Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see obvious

We try to keep the defconfig untouched after decoupling CONFIG_VHOST out of CONFIG_VIRTUALIZATION in commit 20c384f1ea1a ("vhost: refine vhost and vringh kconfig") by enabling VHOST_MENU by default. Then the defconfigs can keep enabling CONFIG_VHOST_NET without the caring of CONFIG_VHOST. But this will leave a "CONFIG_VHOST_MENU=y" in all defconfigs and even for the ones that

We try to keep the defconfig untouched after decoupling CONFIG_VHOST out of CONFIG_VIRTUALIZATION in commit 20c384f1ea1a ("vhost: refine vhost and vringh kconfig") by enabling VHOST_MENU by default. Then the defconfigs can keep enabling CONFIG_VHOST_NET without the caring of CONFIG_VHOST. But this will leave a "CONFIG_VHOST_MENU=y" in all defconfigs and even for the ones that

Hi: This series tries to access virtqueue metadata through kernel virtual address instead of copy_user() friends since they had too much overheads like checks, spec barriers or even hardware feature toggling like SMAP. This is done through setup kernel address through direct mapping and co-opreate VM management with MMU notifiers. Test shows about 23% improvement on TX PPS. TCP_STREAM

Hi: This series tries to access virtqueue metadata through kernel virtual address instead of copy_user() friends since they had too much overheads like checks, spec barriers or even hardware feature toggling like SMAP. This is done through setup kernel address through direct mapping and co-opreate VM management with MMU notifiers. Test shows about 23% improvement on TX PPS. TCP_STREAM