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[Qemu-devel] [PATCH v7 00/12] More fully implement ARM PMUv3
From: |
Aaron Lindsay |
Subject: |
[Qemu-devel] [PATCH v7 00/12] More fully implement ARM PMUv3 |
Date: |
Mon, 5 Nov 2018 18:51:25 +0000 |
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 v6 [1] I have made the following changes:
* Use cpu_get_host_ticks() for the cycle counter value for user mode
* Re-staged "PMU: Set PMCR.N to 4" so that the value of the pmcrn local
variable matches the architectural value of PMCR.N
* Re-ordered "Reorganize PMCCNTR accesses" to come first to eliminate
the churn of *_op_start/finish function names and definitions
* Use extract64 and ARRAY_SIZE macros where applicable
* Add a return value to the post_save migration function
[1] - https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02036.html
Aaron Lindsay (12):
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: Add array for supported PMU events, generate PMCEID[01]
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 | 68 +++-
target/arm/cpu64.c | 4 -
target/arm/helper.c | 774 ++++++++++++++++++++++++++++++++----
target/arm/machine.c | 20 +
8 files changed, 816 insertions(+), 101 deletions(-)
--
2.19.1
- [Qemu-devel] [PATCH v7 00/12] More fully implement ARM PMUv3,
Aaron Lindsay <=