Re: [Qemu-devel] [PATCH v10 00/14] More fully implement ARM PMUv3

[Aaron Lindsay <aaron@os.amperecomputing.com>]

Ping, just in case this got buried over the holidays...

-Aaron

On Dec 11 10:20, Aaron Lindsay wrote:
> The ARM PMU implementation currently contains a basic cycle counter, but
> it is often useful to gather counts of other events, filter them based
> on execution mode, and/or be notified on counter overflow. These patches
> flesh out the implementations of various PMU registers including
> PM[X]EVCNTR and PM[X]EVTYPER, add a struct definition to represent
> arbitrary counter types, implement mode filtering, send interrupts on
> counter overflow, and add instruction, cycle, and software increment
> events.
> 
> Since v9 [1] I have made the following changes:
> * Added a clarifying comment about how the PMU timer's migration is
>   handled
> * Added a check against implementing PMCEID[23] if ID_DFR0.PerfMon ==
>   0xf
> * Added TRACEFILT to the ID_DFR0 field definitions
> 
> [1] - https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg00805.html
> 
> Aaron Lindsay (14):
>   migration: Add post_save function to VMStateDescription
>   target/arm: Reorganize PMCCNTR accesses
>   target/arm: Swap PMU values before/after migrations
>   target/arm: Filter cycle counter based on PMCCFILTR_EL0
>   target/arm: Allow AArch32 access for PMCCFILTR
>   target/arm: Implement PMOVSSET
>   target/arm: Define FIELDs for ID_DFR0
>   target/arm: Make PMCEID[01]_EL0 64 bit registers, add PMCEID[23]
>   target/arm: Add array for supported PMU events, generate
>     PMCEID[01]_EL0
>   target/arm: Finish implementation of PM[X]EVCNTR and PM[X]EVTYPER
>   target/arm: PMU: Add instruction and cycle events
>   target/arm: PMU: Set PMCR.N to 4
>   target/arm: Implement PMSWINC
>   target/arm: Send interrupts on PMU counter overflow
> 
>  docs/devel/migration.rst    |   9 +-
>  include/migration/vmstate.h |   1 +
>  migration/vmstate.c         |  13 +-
>  target/arm/cpu.c            |  28 +-
>  target/arm/cpu.h            |  81 +++-
>  target/arm/cpu64.c          |   4 -
>  target/arm/helper.c         | 808 ++++++++++++++++++++++++++++++++----
>  target/arm/machine.c        |  24 ++
>  8 files changed, 863 insertions(+), 105 deletions(-)
> 
> -- 
> 2.19.2
>