The patchset depends on below Linux upstream commits:
commit ed3e81f ("powerpc/eeh: Move PE state constants around")
commit ec33d36 ("powerpc/eeh: Introduce eeh_pe_inject_err()")
According to PAPR specification 2.7, there're 3 RTAS calls relevent to error
injection: "ibm,open-errinjct", "ibm,close-errinjct", "ibm,errinjct". The
userland utility "errinjct" running on guest utilizes those 3 RTAS calls like
this way: Call "ibm,open-errinjct" that returns open-token, which is passed to
"ibm,errinjct" together with error specific arguments to do error injection.
Finally, to return the open-token by calling "ibm,close-errinject".
"ibm,errinjct" can be used to inject various errors, not limited to EEH errors.
However, this patchset is going to support injecting EEH errors only for VFIO
PCI devices.
=========
Changelog
=========
v2 -> v3:
* Replace random token number with incremental counter. Another boolean
variable to track if it's opened. Both of them are added to migration
stream.
* The return value from sPAPRPHBClass::eeh_inject_error() can be passed
to user directly. No need to do conversion.
* Corrected error code to RTAS_OUT_CLOSE_ERROR in rtas_ibm_errinjct().
* Don't expose error injection tokens for unsupported types.
v1 -> v2:
* Rebased to git://github.com/dgibson/qemu.git (branch: spapr-next)
* Remove specific PCI error types in hw/ppc/spapr.h. Use those macros
asm-powerpc/eeh.h instead.
Gavin Shan (3):
linux-headers: Add eeh.h
sPAPR: Support RTAS call ibm, {open, close}-errinjct
sPAPR: Support RTAS call ibm,errinjct
hw/ppc/spapr.c | 5 ++
hw/ppc/spapr_pci.c | 36 ++++++++++
hw/ppc/spapr_pci_vfio.c | 56 ++++++++++++++++
hw/ppc/spapr_rtas.c | 143 ++++++++++++++++++++++++++++++++++++++++
include/hw/pci-host/spapr.h | 2 +
include/hw/ppc/spapr.h | 17 ++++-
linux-headers/asm-powerpc/eeh.h | 56 ++++++++++++++++
7 files changed, 314 insertions(+), 1 deletion(-)
create mode 100644 linux-headers/asm-powerpc/eeh.h
--
2.1.0
