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path: root/pc-bios/s390-ccw/virtio.h
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2016-07-11pc-bios/s390-ccw: Pass selected SCSI device to IPLEugene (jno) Dvurechenski
There is ,bootindex=%d argument to specify the lookup order of boot devices. If a bootindex assigned to the device, then IPL Parameter Info Block is created for that device when it is IPLed from. If it is a mere SCSI device (not FCP), then IPIB is created with a special SCSI type and its fields are used to store SCSI address of the device. This new ipl block is private to qemu for now. If the device to IPL from is specified this way, then SCSI bus lookup is bypassed and prescribed devices uses the address specified. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: enable virtio-scsiEugene (jno) Dvurechenski
Make the code added before to work. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: add simplified virtio callEugene (jno) Dvurechenski
Add virtio_run(VirtioCmd) call to use simple declarative approach. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: make provisions for different backendsEugene (jno) Dvurechenski
Add dispatching code to make room for non virtio-blk boot devices. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: add vdev object to store all device detailsEugene (jno) Dvurechenski
Add VDev "object" as a container for all device-related items. The default object is static. Leverage dependency on many different device-related globals. Make them syntactically visible. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: update virtio implementation to allow up to 3 vringsEugene (jno) Dvurechenski
Add ability to work with up to 3 vrings, which is required for virtio-scsi implementation. Implement the optional cookie to speed up processing of virtio notifications. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-03-23pc-bios/s390-ccw: qemuize typesEugene (jno) Dvurechenski
Turn [the most of] existing declarations from struct type_name { ... }; into struct TypeName { ... }; typedef struct TypeName TypeName; and make use of them. Also switch u{8,16,32,64} to uint{8,16,32,64}_t. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-11-11pc-bios/s390-ccw: ISO-9660 El Torito boot implementationMaxim Samoylov
This patch enables boot from media formatted according to ISO-9660 and El Torito bootable CD specification. We try to boot from device as ISO-9660 media when SCSI IPL failed. The first boot catalog entry with bootable flag is used. ISO-9660 media with default 2048-bytes sector size only is supported. Signed-off-by: Maxim Samoylov <max7255@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-11-11pc-bios/s390-ccw: Always adjust virtio sector countMaxim Samoylov
Let's always adjust the sector number to be read using the current virtio block size value. This prepares for the implementation of IPL from ISO-9660 media. Signed-off-by: Maxim Samoylov <max7255@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-09-01pc-bios/s390-ccw Really big EAV ECKD DASD handlingEugene (jno) Dvurechenski
For EAV ECKD DASD, the cylinder count will have the magic value 0xfffeU. Therefore, use the block number to test for valid eckd addresses instead. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-06-27pc-bios/s390-ccw: handle different sector sizesEugene (jno) Dvurechenski
Use the virtio device's configuration to figure out the disk geometry and use a sector size based upon the layout. [CH: s/SECTOR_SIZE/MAX_SECTOR_SIZE/g] Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27pc-bios/s390-ccw: make checkpatch happyEugene (jno) Dvurechenski
Remove tabs, tweak whitespace and comments. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-09-20s390/ipl: Fix waiting for virtio processingCornelia Huck
The guest side must not manipulate the index for the used buffers. Instead, remember the state of the used buffer locally and wait until it has moved. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2013-04-26s390-ccw.img: Get queue config from host.Cornelia Huck
Ask the host about the configuration instead of guessing it. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26S390: ccw firmware: Add virtio device driversAlexander Graf
In order to boot, we need to be able to access a virtio-blk device through the CCW bus. Implement support for this. Signed-off-by: Alexander Graf <agraf@suse.de>
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