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[2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a90610966ccsm308905866b.45.2024.09.16.05.41.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Sep 2024 05:41:28 -0700 (PDT) Date: Mon, 16 Sep 2024 14:41:27 +0200 From: Andrew Jones To: zhouquan@iscas.ac.cn Cc: anup@brainfault.org, atishp@atishpatra.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-perf-users@vger.kernel.org Subject: Re: [PATCH v3 2/2] riscv: KVM: add basic support for host vs guest profiling Message-ID: <20240916-1d1835e5f16d58c674fdef5b@orel> References: <86e8f4eeb30dfc8700089cd88616e6cfb5a142ff.1726126795.git.zhouquan@iscas.ac.cn> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <86e8f4eeb30dfc8700089cd88616e6cfb5a142ff.1726126795.git.zhouquan@iscas.ac.cn> On Thu, Sep 12, 2024 at 04:00:38PM GMT, zhouquan@iscas.ac.cn wrote: > From: Quan Zhou > > For the information collected on the host side, we need to > identify which data originates from the guest and record > these events separately, this can be achieved by having > KVM register perf callbacks. > > Signed-off-by: Quan Zhou > --- > arch/riscv/include/asm/kvm_host.h | 10 ++++++++++ > arch/riscv/kvm/Kconfig | 1 + > arch/riscv/kvm/main.c | 12 ++++++++++-- > arch/riscv/kvm/vcpu.c | 7 +++++++ > 4 files changed, 28 insertions(+), 2 deletions(-) > Reviewed-by: Andrew Jones