« Previous | Next » 

Revision 639e8102

ID639e8102ae71ce2e46ebeffc6080767e573c0c56

Added by David Gibson over 11 years ago

pseries: Implement PAPR NVRAM

The PAPR specification requires a certain amount of NVRAM, accessed via
RTAS, which we don't currently implement in qemu. This patch addresses
this deficiency, implementing the NVRAM as a VIO device, with some glue to
instantiate it automatically based on a machine option.

The machine option specifies a drive id, which is used to back the NVRAM,
making it persistent. If nothing is specified, the driver instead simply
allocates space for the NVRAM, which will not be persistent

Signed-off-by: David Gibson <>
Signed-off-by: Alexander Graf <>

Files

  • added
  • modified
  • copied
  • renamed
  • deleted

View differences