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...es the override in case the flag is cleared. > > Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com> > --- > drivers/virtio/virtio.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c > index 7907ad3..6b13987 100644 > --- a/drivers/virtio/virtio.c > +++ b/drivers/virtio/virtio.c > @@ -166,6 +166,8 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status) > } > EXPORT_SYMBOL_GPL(virtio_add_status); > > +const struct dma_map_ops virtio_direct_dma_ops; >...

...es the override in case the flag is cleared. > > Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com> > --- > drivers/virtio/virtio.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c > index 7907ad3..6b13987 100644 > --- a/drivers/virtio/virtio.c > +++ b/drivers/virtio/virtio.c > @@ -166,6 +166,8 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status) > } > EXPORT_SYMBOL_GPL(virtio_add_status); > > +const struct dma_map_ops virtio_direct_dma_ops; >...

...red. > > > > Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com> > > --- > > drivers/virtio/virtio.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c > > index 7907ad3..6b13987 100644 > > --- a/drivers/virtio/virtio.c > > +++ b/drivers/virtio/virtio.c > > @@ -166,6 +166,8 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status) > > } > > EXPORT_SYMBOL_GPL(virtio_add_status); > > > > +const struct dma_m...

...e detects device's IOMMU flag and does the override in case the flag is cleared. Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com> --- drivers/virtio/virtio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 7907ad3..6b13987 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -166,6 +166,8 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status) } EXPORT_SYMBOL_GPL(virtio_add_status); +const struct dma_map_ops virtio_direct_dma_ops; + int virtio_finalize_features(struct...

...Anshuman Khandual <khandual at linux.vnet.ibm.com> --- drivers/virtio/virtio.c | 60 ++++++++++++++++++++++++++++++++++++++ drivers/virtio/virtio_pci_common.h | 3 ++ 2 files changed, 63 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 59e36ef..7907ad3 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -3,6 +3,7 @@ #include <linux/virtio_config.h> #include <linux/module.h> #include <linux/idr.h> +#include <linux/dma-mapping.h> #include <uapi/linux/virtio_ids.h> /* Unique numbering for virtio...

This patch series is the follow up on the discussions we had before about the RFC titled [RFC,V2] virtio: Add platform specific DMA API translation for virito devices (https://patchwork.kernel.org/patch/10417371/). There were suggestions about doing away with two different paths of transactions with the host/QEMU, first being the direct GPA and the other being the DMA API based translations.

This patch series is the follow up on the discussions we had before about the RFC titled [RFC,V2] virtio: Add platform specific DMA API translation for virito devices (https://patchwork.kernel.org/patch/10417371/). There were suggestions about doing away with two different paths of transactions with the host/QEMU, first being the direct GPA and the other being the DMA API based translations.