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...--- a/drivers/remoteproc/remoteproc_virtio.c > +++ b/drivers/remoteproc/remoteproc_virtio.c > @@ -199,7 +199,7 @@ static u64 rproc_virtio_get_features(struct > virtio_device *vdev) > > rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; > > - return rsc->dfeatures; > + return rsc->dfeatures | (1ULL << VIRTIO_F_IOMMU_PLATFORM); > } > > static int rproc_virtio_finalize_features(struct virtio_device *vdev) > @@ -213,7 +213,7 @@ static int rproc_virtio_finalize_features(struct > virtio_device *vdev) > vring_transport_features...

...o.c index b0633fd..4a13ca2 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -199,7 +199,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; - return rsc->dfeatures; + return rsc->dfeatures | (1ULL << VIRTIO_F_IOMMU_PLATFORM); } static int rproc_virtio_finalize_features(struct virtio_device *vdev) @@ -213,7 +213,7 @@ static int rproc_virtio_finalize_features(struct virtio_device *vdev) vring_transport_features(vdev); /* Make sure we don...

> -----Original Message----- > From: linux-remoteproc-owner at vger.kernel.org [mailto:linux-remoteproc- > owner at vger.kernel.org] On Behalf Of Anup Patel > Sent: Sunday, April 22, 2018 6:08 AM > To: Michael S. Tsirkin <mst at redhat.com> > Cc: linux-remoteproc at vger.kernel.org; Ohad Ben-Cohen > <ohad at wizery.com>; Bjorn Andersson <bjorn.andersson at

> -----Original Message----- > From: linux-remoteproc-owner at vger.kernel.org [mailto:linux-remoteproc- > owner at vger.kernel.org] On Behalf Of Anup Patel > Sent: Sunday, April 22, 2018 6:08 AM > To: Michael S. Tsirkin <mst at redhat.com> > Cc: linux-remoteproc at vger.kernel.org; Ohad Ben-Cohen > <ohad at wizery.com>; Bjorn Andersson <bjorn.andersson at

...ivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index 627737e..e1a1023 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -217,7 +217,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) return rsc->dfeatures; } -static void rproc_virtio_finalize_features(struct virtio_device *vdev) +static int rproc_virtio_finalize_features(struct virtio_device *vdev) { struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); struct fw_rsc_vdev *rsc; @@ -235,6 +235,8 @@ static void rproc_virtio_finalize_features(struc...

...ivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index 627737e..e1a1023 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -217,7 +217,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) return rsc->dfeatures; } -static void rproc_virtio_finalize_features(struct virtio_device *vdev) +static int rproc_virtio_finalize_features(struct virtio_device *vdev) { struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); struct fw_rsc_vdev *rsc; @@ -235,6 +235,8 @@ static void rproc_virtio_finalize_features(struc...

...g[index]; + vring_init(&vrh->vring, rvring->len, rvring->va, rvring->align); + /* zero vring */ + memset(&vrh->vring, 0, vring_size(rvring->len, rvring->align)); + rvring->vringh_cb = cb; + rvring->vringh = vrh; + + err = vringh_init_kern(vrh, + rvdev->dfeatures, + rvring->len, + false, + vrh->vring.desc, + vrh->vring.avail, + vrh->vring.used); + if (err) { + dev_err(&vdev->dev, "failed to create vhost: %d\n", err); + kfree(vrh); + vrh = NULL; + } + + return vrh; +} +EXPORT_SYMB...

...g[index]; + vring_init(&vrh->vring, rvring->len, rvring->va, rvring->align); + /* zero vring */ + memset(&vrh->vring, 0, vring_size(rvring->len, rvring->align)); + rvring->vringh_cb = cb; + rvring->vringh = vrh; + + err = vringh_init_kern(vrh, + rvdev->dfeatures, + rvring->len, + false, + vrh->vring.desc, + vrh->vring.avail, + vrh->vring.used); + if (err) { + dev_err(&vdev->dev, "failed to create vhost: %d\n", err); + kfree(vrh); + vrh = NULL; + } + + return vrh; +} +EXPORT_SYMB...

...ivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index 627737e..e1a1023 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -217,7 +217,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) return rsc->dfeatures; } -static void rproc_virtio_finalize_features(struct virtio_device *vdev) +static int rproc_virtio_finalize_features(struct virtio_device *vdev) { struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); struct fw_rsc_vdev *rsc; @@ -235,6 +235,8 @@ static void rproc_virtio_finalize_features(struc...

...ivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index 627737e..e1a1023 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -217,7 +217,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev) return rsc->dfeatures; } -static void rproc_virtio_finalize_features(struct virtio_device *vdev) +static int rproc_virtio_finalize_features(struct virtio_device *vdev) { struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); struct fw_rsc_vdev *rsc; @@ -235,6 +235,8 @@ static void rproc_virtio_finalize_features(struc...

transports need to be able to detect legacy-only devices (ATM balloon only) to use legacy path to drive them. Add a core API to do just that. The implementation just blacklists balloon: not too pretty, but let's not over-engineer. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Acked-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- include/linux/virtio.h | 2 ++

transports need to be able to detect legacy-only devices (ATM balloon only) to use legacy path to drive them. Add a core API to do just that. The implementation just blacklists balloon: not too pretty, but let's not over-engineer. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Acked-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- include/linux/virtio.h | 2 ++

These are minor robustness enhancements on top of v8 of the patchset [PATCH v8 00/50] linux: towards virtio-1 guest support http://mid.gmane.org/1417449619-24896-1-git-send-email-mst at redhat.com As that one seems stable and actually seems to work well for people, I'm not respinning it anymore. The main motivation is to prevent us accidentally supporting bad configurations, such as legacy

These are minor robustness enhancements on top of v8 of the patchset [PATCH v8 00/50] linux: towards virtio-1 guest support http://mid.gmane.org/1417449619-24896-1-git-send-email-mst at redhat.com As that one seems stable and actually seems to work well for people, I'm not respinning it anymore. The main motivation is to prevent us accidentally supporting bad configurations, such as legacy

...irtio.c Sjur Br?ndeland 2013-02-21 198 rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 199 92b38f851 drivers/remoteproc/remoteproc_virtio.c Sjur Br?ndeland 2013-02-21 200 return rsc->dfeatures; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 201 } ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 202 5c609a5ef drivers/remoteproc/remoteproc_virtio.c Michael S. Tsirkin 2014-12-04 203 static int rproc_virtio_finalize_featu...

...irtio.c Sjur Br?ndeland 2013-02-21 198 rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 199 92b38f851 drivers/remoteproc/remoteproc_virtio.c Sjur Br?ndeland 2013-02-21 200 return rsc->dfeatures; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 201 } ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 202 5c609a5ef drivers/remoteproc/remoteproc_virtio.c Michael S. Tsirkin 2014-12-04 203 static int rproc_virtio_finalize_featu...

...irtio.c Sjur Br?ndeland 2013-02-21 198 rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 199 92b38f851 drivers/remoteproc/remoteproc_virtio.c Sjur Br?ndeland 2013-02-21 200 return rsc->dfeatures; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 201 } ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 202 5c609a5ef drivers/remoteproc/remoteproc_virtio.c Michael S. Tsirkin 2014-12-04 203 static int rproc_virtio_finalize_featu...

...irtio.c Sjur Br?ndeland 2013-02-21 198 rsc = (void *)rvdev->rproc->table_ptr + rvdev->rsc_offset; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 199 92b38f851 drivers/remoteproc/remoteproc_virtio.c Sjur Br?ndeland 2013-02-21 200 return rsc->dfeatures; ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 201 } ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 202 5c609a5ef drivers/remoteproc/remoteproc_virtio.c Michael S. Tsirkin 2014-12-04 203 static int rproc_virtio_finalize_featu...

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Changes since V1: - Use the new iov helper functions, and simplify iov handling. However this triggers compile warnings, as it takes struct iov while kernel api uses struct kiov - Introduced

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Changes since V1: - Use the new iov helper functions, and simplify iov handling. However this triggers compile warnings, as it takes struct iov while kernel api uses struct kiov - Introduced