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# Date Author Comment
b4a78527 05/09/2011 11:31 pm David Gibson

Place pseries vty devices at addresses more similar to existing machines

Currently the qemu pseries machine numbers its virtual serial devices
from 0. However, existing pSeries machines running pHyp number them from
0x30000000.

In theory these indices are arbitrary, since everything necessary for the...
6e270446 04/01/2011 07:34 pm Ben Herrenschmidt

Implement PAPR virtual SCSI interface (ibmvscsi)

This patch implements the infrastructure and hypercalls necessary for
the PAPR specified Virtual SCSI interface. This is the normal method
for providing (virtual) disks to PAPR partitions.

Signed-off-by: Ben Herrenschmidt <>...
08942ac1 04/01/2011 07:34 pm Ben Herrenschmidt

Add a PAPR TCE-bypass mechanism for the pSeries machine

Usually, PAPR virtual IO devices use a virtual IOMMU mechanism, TCEs,
to mediate all DMA transfers. While this is necessary for some sorts of
operation, it can be complex to program and slow for others....
00dc738d 04/01/2011 07:34 pm David Gibson

Add PAPR H_VIO_SIGNAL hypercall and infrastructure for VIO interrupts

This patch adds infrastructure to support interrupts from PAPR virtual IO
devices. This includes correctly advertising those interrupts in the
device tree, and implementing the H_VIO_SIGNAL hypercall, used to...
0201e2da 04/01/2011 07:34 pm David Gibson

Add (virtual) interrupt to PAPR virtual tty device

Now that we have implemented the PAPR "xics" virtualized interrupt
controller, we can add interrupts in PAPR VIO devices. This patch adds
interrupt support to the PAPR virtual tty/console device.

Signed-off-by: David Gibson <>...
ee86dfee 04/01/2011 07:34 pm David Gibson

Implement TCE translation for sPAPR VIO

This patch implements the necessary infrastructure and hypercalls for
sPAPR's TCE (Translation Control Entry) IOMMU mechanism. This is necessary
for all virtual IO devices which do DMA (i.e. nearly all of them).

Signed-off-by: Ben Herrenschmidt <>...
8d90ad90 04/01/2011 07:34 pm David Gibson

Implement sPAPR Virtual LAN (ibmveth)

This patch implements the PAPR specified Inter Virtual Machine Logical
LAN; that is the virtual hardware used by the Linux ibmveth driver.

Signed-off-by: Paul Mackerras <>
Signed-off-by: David Gibson <>...
b45d63b6 04/01/2011 07:34 pm Ben Herrenschmidt

Implement PAPR CRQ hypercalls

This patch implements the infrastructure and hypercalls necessary for the
PAPR specified CRQ (Command Request Queue) mechanism. This general
request queueing system is used by many of the PAPR virtual IO devices,
including the virtual scsi adapter....
4040ab72 04/01/2011 07:34 pm David Gibson

Implement the bus structure for PAPR virtual IO

This extends the "pseries" (PAPR) machine to include a virtual IO bus
supporting the PAPR defined hypercall based virtual IO mechanisms.

So far only one VIO device is provided, the vty / vterm, providing
a full console (polled only, for now)....