similar to: [PATCH v2] vhost-test: Make vhost/test.c work

Fix it by: 1) switching to use the new device specific fields per vq 2) not including vhost.c, instead make vhost-test.ko depend on vhost.ko. --- drivers/vhost/test.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index 1ee45bc..dc526eb 100644 --- a/drivers/vhost/test.c +++

Fix it by: 1) switching to use the new device specific fields per vq 2) not including vhost.c, instead make vhost-test.ko depend on vhost.ko. --- drivers/vhost/test.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index 1ee45bc..dc526eb 100644 --- a/drivers/vhost/test.c +++

This implements a virtio simulator: - adds stubs for enough support functions to compile virtio ring in userspace. - Adds a stub vhost based module this can talk to. This should help us decide things like which ring layout works best. Communication is currently done using an eventfd descriptor. This means there's a shared spinlock there: what I would like to do in the future, is run

This implements a virtio simulator: - adds stubs for enough support functions to compile virtio ring in userspace. - Adds a stub vhost based module this can talk to. This should help us decide things like which ring layout works best. Communication is currently done using an eventfd descriptor. This means there's a shared spinlock there: what I would like to do in the future, is run

Allow building vringh without IOTLB (that's the case for userspace builds, will be useful for CAIF/VOD down the road too). Update for API tweaks. Don't include vringh with kernel builds. Cc: Jason Wang <jasowang at redhat.com> Cc: Eugenio P?rez <eperezma at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/test.c | 4 ++--

Allow building vringh without IOTLB (that's the case for userspace builds, will be useful for CAIF/VOD down the road too). Update for API tweaks. Don't include vringh with kernel builds. Cc: Jason Wang <jasowang at redhat.com> Cc: Eugenio P?rez <eperezma at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/test.c | 4 ++--

Allow building vringh without IOTLB (that's the case for userspace builds, will be useful for CAIF/VOD down the road too). Update for API tweaks. Don't include vringh with userspace builds. Cc: Jason Wang <jasowang at redhat.com> Cc: Eugenio P?rez <eperezma at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- changes from v1: use IS_REACHEABLE to

On Thu, Apr 02, 2020 at 12:01:56PM +0800, Jason Wang wrote: > > On 2020/4/2 ??12:51, Michael S. Tsirkin wrote: > > Allow building vringh without IOTLB (that's the case for userspace > > builds, will be useful for CAIF/VOD down the road too). > > Update for API tweaks. > > Don't include vringh with kernel builds. > > > I'm not quite sure we need

Pass a flag to request kernel thread use. Fixes: 01fcb1cbc88e ("vhost: allow device that does not depend on vhost worker") Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index f55cb584b84a..12304eb8da15 100644 --- a/drivers/vhost/test.c

Pass a flag to request kernel thread use. Fixes: 01fcb1cbc88e ("vhost: allow device that does not depend on vhost worker") Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index f55cb584b84a..12304eb8da15 100644 --- a/drivers/vhost/test.c

On 2020/6/4 ??4:59, Michael S. Tsirkin wrote: > On Wed, Jun 03, 2020 at 03:27:39PM +0800, Jason Wang wrote: >> On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: >>> With this patch applied, new and old code perform identically. >>> >>> Lots of extra optimizations are now possible, e.g. >>> we can fetch multiple heads with copy_from/to_user now. >>>

On 2020/6/4 ??4:59, Michael S. Tsirkin wrote: > On Wed, Jun 03, 2020 at 03:27:39PM +0800, Jason Wang wrote: >> On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: >>> With this patch applied, new and old code perform identically. >>> >>> Lots of extra optimizations are now possible, e.g. >>> we can fetch multiple heads with copy_from/to_user now. >>>

On 2020/6/7 ??9:57, Michael S. Tsirkin wrote: > On Fri, Jun 05, 2020 at 11:40:17AM +0800, Jason Wang wrote: >> On 2020/6/4 ??4:59, Michael S. Tsirkin wrote: >>> On Wed, Jun 03, 2020 at 03:27:39PM +0800, Jason Wang wrote: >>>> On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: >>>>> With this patch applied, new and old code perform identically.

On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: > With this patch applied, new and old code perform identically. > > Lots of extra optimizations are now possible, e.g. > we can fetch multiple heads with copy_from/to_user now. > We can get rid of maintaining the log array. Etc etc. > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > Signed-off-by: Eugenio P?rez

On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: > With this patch applied, new and old code perform identically. > > Lots of extra optimizations are now possible, e.g. > we can fetch multiple heads with copy_from/to_user now. > We can get rid of maintaining the log array. Etc etc. > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > Signed-off-by: Eugenio P?rez

On 2019/10/11 ??9:46, Michael S. Tsirkin wrote: > With this patch applied, new and old code perform identically. > > Lots of extra optimizations are now possible, e.g. > we can fetch multiple heads with copy_from/to_user now. > We can get rid of maintaining the log array. Etc etc. > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > --- >

On 2019/10/11 ??9:46, Michael S. Tsirkin wrote: > With this patch applied, new and old code perform identically. > > Lots of extra optimizations are now possible, e.g. > we can fetch multiple heads with copy_from/to_user now. > We can get rid of maintaining the log array. Etc etc. > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > --- >

Allow building vringh without IOTLB (that's the case for userspace builds, will be useful for CAIF/VOD down the road too). Update for API tweaks. Don't include vringh with userspace builds. Cc: Jason Wang <jasowang at redhat.com> Cc: Eugenio P?rez <eperezma at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Acked-by: Jason Wang <jasowang at

On 2020/4/2 ??12:51, Michael S. Tsirkin wrote: > Allow building vringh without IOTLB (that's the case for userspace > builds, will be useful for CAIF/VOD down the road too). > Update for API tweaks. > Don't include vringh with kernel builds. I'm not quite sure we need this. E.g the userspace accessor is not used by CAIF/VOP. > > Cc: Jason Wang <jasowang at

This adds infrastructure required for supporting multiple ring formats. The idea is as follows: we convert descriptors to an independent format first, and process that converting to iov later. The point is that we have a tight loop that fetches descriptors, which is good for cache utilization. This will also allow all kind of batching tricks - e.g. it seems possible to keep SMAP disabled while