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[0/4] Add BHRB Facility Support

Message ID 20230912192144.3330174-1-milesg@linux.vnet.ibm.com
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Series Add BHRB Facility Support | expand

Message

Glenn Miles Sept. 12, 2023, 7:21 p.m. UTC 
This is a series of patches for adding support for the Branch History
Rolling Buffer (BHRB) facility.  This was added to the Power ISA
starting with version 2.07.  Changes were subsequently made in version
3.1 to limit BHRB recording to instructions run in problem state only
and to add a control bit to disable recording (MMCRA[BHRBRD]).


Glenn Miles (4):
  target/ppc: Add new hflags to support BHRB
  target/ppc: Add recording of taken branches to BHRB
  target/ppc: Add clrbhrb and mfbhrbe instructions
  target/ppc: Add migration support for BHRB

 target/ppc/cpu.h                       |  24 +++++
 target/ppc/cpu_init.c                  |  45 ++++++++-
 target/ppc/helper.h                    |   5 +
 target/ppc/helper_regs.c               |  44 ++++++++
 target/ppc/helper_regs.h               |   1 +
 target/ppc/machine.c                   |  25 ++++-
 target/ppc/misc_helper.c               |  43 ++++++++
 target/ppc/power8-pmu-regs.c.inc       |   5 +
 target/ppc/power8-pmu.c                |  17 +++-
 target/ppc/power8-pmu.h                |  11 +-
 target/ppc/spr_common.h                |   1 +
 target/ppc/translate.c                 | 133 +++++++++++++++++++++++--
 target/ppc/translate/branch-impl.c.inc |   2 +-
 13 files changed, 337 insertions(+), 19 deletions(-)