From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46418) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gJjyW-0004QH-ES for qemu-devel@nongnu.org; Mon, 05 Nov 2018 13:51:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gJjyU-0000GS-2C for qemu-devel@nongnu.org; Mon, 05 Nov 2018 13:51:48 -0500 From: Aaron Lindsay Date: Mon, 5 Nov 2018 18:51:25 +0000 Message-ID: <20181105185046.2802-1-aaron@os.amperecomputing.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: [Qemu-devel] [PATCH v7 00/12] More fully implement ARM PMUv3 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "qemu-arm@nongnu.org" , Peter Maydell , Alistair Francis , Wei Huang , Peter Crosthwaite , Richard Henderson Cc: "qemu-devel@nongnu.org" , Michael Spradling , Digant Desai , Aaron Lindsay 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(-) --=20 2.19.1