Commit Graph

5 Commits

Author SHA1 Message Date
Markus Armbruster
9c0928045c Clean up ill-advised or unusual header guards
Leading underscores are ill-advised because such identifiers are
reserved.  Trailing underscores are merely ugly.  Strip both.

Our header guards commonly end in _H.  Normalize the exceptions.

Macros should be ALL_CAPS.  Normalize the exception.

Done with scripts/clean-header-guards.pl.

include/hw/xen/interface/ and tools/virtiofsd/ left alone, because
these were imported from Xen and libfuse respectively.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220506134911.2856099-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-11 16:50:01 +02:00
Matthew Rosato
ac6aa30ac4 s390x/pci: add supported DT information to clp response
The DTSM is a mask that specifies which I/O Address Translation designation
types are supported.  Today QEMU only supports DT=1.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20211203142706.427279-5-mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-12-17 09:12:37 +01:00
Cornelia Huck
a4e2fff1b1 s390x/pci: fix endianness issues
The zPCI group and function structures are big endian. However, we do
not consistently store them as big endian locally, and are missing some
conversions.

Let's just store the structures as host endian instead and convert to
big endian when actually handling the instructions retrieving the data.

Also fix the layout of ClpReqQueryPciGrp: g is actually only 8 bit. This
also fixes accesses on little endian hosts, and makes accesses on big
endian hosts consistent.

Fixes: 28dc86a072 ("s390x/pci: use a PCI Group structure")
Fixes: 9670ee7527 ("s390x/pci: use a PCI Function structure")
Fixes: 1e7552ff5c ("s390x/pci: get zPCI function info from host")
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201118104202.1301363-1-cohuck@redhat.com>
2020-11-18 16:59:29 +01:00
Matthew Rosato
1e7552ff5c s390x/pci: get zPCI function info from host
We use the capability chains of the VFIO_DEVICE_GET_INFO ioctl to retrieve
the CLP information that the kernel exports.

To be compatible with previous kernel versions we fall back on previous
predefined values, same as the emulation values, when the ioctl is found
to not support capability chains. If individual CLP capabilities are not
found, we fall back on default values for only those capabilities missing
from the chain.

This patch is based on work previously done by Pierre Morel.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
[aw: non-Linux build fixes]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-11-01 12:30:52 -07:00
Pierre Morel
c04274f49e s390x/pci: create a header dedicated to PCI CLP
To have a clean separation between s390-pci-bus.h and s390-pci-inst.h
headers we export the PCI CLP instructions in a dedicated header.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-11-01 12:30:52 -07:00