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[Qemu-devel] [PATCH v4 0/5] spapr: implement dispatch and suspend calls

From: Nicholas Piggin
Subject: [Qemu-devel] [PATCH v4 0/5] spapr: implement dispatch and suspend calls
Date: Tue, 16 Jul 2019 12:47:21 +1000

This series follows on from the previous that added H_PROD and
H_CONFER, but I've now aimed to make it conform better to PAPR.

It's still not completely there (as explained in comments), but
it's better than before and actually better matches KVM that
does implement the prod bit and dispatch counter.

The first 3 patches implement these splpar hcalls for tcg, as
KVM implements its own H_PROD, H_CONFER, H_CEDE, and dispatch
management. These would be nice to merge as they make qemu
behave more like KVM and PowerVM with these calls.

The last 2 patches implement some parts of the guest suspend
APIs I've been using to test Linux modifications to the pseries
(and generic kernel) suspend/hibernate code, but they are not
really useful to a Linux guest (yet) due to other missing bits.

I have some Linux code I'll try to gradually upstream to work
around the missing bits and make this suspend on QEMU "work",
which is at least useful for testing without having PowerVM.


Nicholas Piggin (5):
  spapr: Implement dispatch counter and prod bit on tcg
  spapr: Implement H_PROD
  spapr: Implement H_CONFER
  spapr: Implement H_JOIN
  spapr: Implement ibm,suspend-me

 hw/ppc/spapr.c                  |  52 +++++++++++++
 hw/ppc/spapr_cpu_core.c         |   5 +-
 hw/ppc/spapr_hcall.c            | 126 ++++++++++++++++++++++++++++++--
 hw/ppc/spapr_rtas.c             |  32 ++++++++
 include/hw/ppc/spapr.h          |  14 +++-
 include/hw/ppc/spapr_cpu_core.h |   2 +
 target/ppc/cpu.h                |   2 +
 target/ppc/translate_init.inc.c |  25 +++++++
 8 files changed, 251 insertions(+), 7 deletions(-)


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