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2019-11-11virtio: Make virtio_set_qaddr staticAlexey Kardashevskiy1-1/+0
It is never called outside of virtio, make it static. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-11-24virtio: Implement block write supportThomas Huth1-0/+1
Refactor the virtio-block code a little bit to provide block write access, too. Write access to the first 34 sectors is not allowed, though, to avoid that the user / client program accidentially destroys the partition table. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-10-13Add virtio-serial device supportNikunj A Dadhania1-0/+6
Add support for virtio serial device to be used as a console device. Currently, SLOF only supports spapr-vty device. With this addition virtio console can be used during boot. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: add and enable 1.0 device setupNikunj A Dadhania1-0/+2
Introduce parsing routines for virtio capabilities. This would also determine whether we need to function in legacy mode or virtio 1.0. Update routine to start using the base address from the updated legacy structure. With the removal for base address setting in the Forth code and most of the device setup happening in C code, code in virtio.fs is redundant. Remove virtio.fs and move the allocation of the virtio_device structure to the C code instead of the Forth code in individual files. Also, drop the packed attribute for the virtio_{device,cap} structure. The structure is not shared anymore. Drivers need to negotiate the 1.0 feature capability before starting to use 1.0. Disable it in all the drivers until 1.0 is enabled. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2013-10-04Add virtio-net driver in libvirtioAvik Sil1-0/+5
Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
2013-06-05SLOF: virtio-scsi helper routinesNikunj A. Dadhania1-0/+4
* initialize/shutdown virtio-scsi device * routine for sending scsi commands to virtio-scsi device [ Modified to pass the whole virtio req/resp from forth to allow better handling of status and sense buffer -- BenH ] Signed-off-by: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-21virtio: Add a virtio-set-qaddr helperNikunj A. Dadhania1-0/+1
A simple function that can be used from forth code for setting virtqueue address. virito-scsi has multiple virtqueues(atleast 3) and need to use set queue address for all the 3 queues. Signed-off-by: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-01-19Add virtfs supportBenjamin Herrenschmidt1-0/+5
Code originally written by Timothy Rule and reworked & bug fixed by myself Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-01-19Move virtio to a separate libraryBenjamin Herrenschmidt1-0/+18
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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