Re: A proposal to enhance RISC-V HPM (Hardware Performance Monitor)
Like mentioned previously, having different mechanism for HS-mode and VS-mode to write HPMCOUNTER CSR is not acceptable. The “bypass-sbi” DT property only means that Linux PMU driver is now aware whether it is running natively or running inside Guest/VM. This is totally hacky and won’t be acceptable.
From: tech-privileged@... <tech-privileged@...> On Behalf Of alankao
Sent: 18 August 2020 15:17
Subject: Re: [RISC-V] [tech-privileged] A proposal to enhance RISC-V HPM (Hardware Performance Monitor)