From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7BE4156CF for ; Mon, 16 Sep 2024 12:41:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726490492; cv=none; b=SQzZqHOAOrv+JWNEnX1m3LflgFHkpXOwjGuMY1oncJHsUnCSaI1lHGbJFs2cXA0JZeqqdrCz8m1aoNWhpseVlIsmH8e0U7E+CuT9iNiJwvqgN+O46LqSTHMZuJ0Z33k0+jSlm9IKp3eqDDgGZhjzYxlAD7Ip/KWvTaMxrA+p9C4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726490492; c=relaxed/simple; bh=S/ftoAScjgiV360t76a5mqODWdMIpi91lRWa69OOHFA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XclFSD4cixkVieoWFJCcinesni37LCVvmXXGM4nTj+s2hIxVlAr3iGtnXMyzSrrVj+QiY+DvoplLp71z9R9FDeJ/M8DWRo7bYsxyGYg/oKbOj0l0BNPFAH6T6uCZjGkJF2FgiU1qyYK5V0U6OVObd285nEMrFMYcEx1Vy+FU8u0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=D4F2pKtm; arc=none smtp.client-ip=209.85.218.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="D4F2pKtm" Received: by mail-ej1-f43.google.com with SMTP id a640c23a62f3a-a8d6ac24a3bso803008866b.1 for ; Mon, 16 Sep 2024 05:41:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1726490489; x=1727095289; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=GV6Qavvmkl6w+Qrw4EyS70WlfiOWC0YssBlS9J9YVb0=; b=D4F2pKtmRr0OBn+bsJZ7NyDP4FvrCqK/FsMHHghFLR+54wWshzwU717T73dywf2tO4 satPc/TsujT9YG8iV30ImCAVQikRB+x0ozX/mNrqEjhOeNzeENXuMJyjRxDyPNbuSxJ5 Xdd3ynGLYRRulXpuhxAS7zd8yNBx1u+ZEoDf9l3mbwT+1fmxrs3N+zgW0N5tYWR0cUfr xpdIkE39XiOKt4rMQGRQxX0XJRpnrwVUnRCp2XHy0G4GUahD8zvYD9agCjs8hCZM6/SB tTZ4bZ2kQPvlYLQcSFf2zUQJ9ou9BfCFAybA4BUs6vbSTJB7MWVojwAvbDCXNR4aEHqX Oafg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726490489; x=1727095289; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=GV6Qavvmkl6w+Qrw4EyS70WlfiOWC0YssBlS9J9YVb0=; b=HVVGP8IKx5EgV0TnRbIw1IWRdtum9Njgj1OFAL5ycw4/+wXDWtCFkcLf91pCmiwv1E 4qTV2Aj2CNP4Rhfbv93+pN+6L7JUtoaZONUe4LjbQOZbmzk7LuRKxepCBtb2N3Zm8hmi UFikJCl6A7tXHeE+QBFlVOiSJ81gn4C0v4cEvANk5HQXNRU0EEsmpD2KlRrKsS5V7KK3 JZZPdHcKyY95+GGX9K9cWCamEuyTikjVjFEWQiJmDQlE18tpPhCM8SvQCKW/KAY7M7Dh u3Z92bVy33+mSllevEi3a+BfetvZGdhxYSbSNU0H+uIMrSEoRwI0oARMlSAWW2REnIOT D5oA== X-Forwarded-Encrypted: i=1; AJvYcCX+vNds7nqTmDbMJKhbg6GQNnsAPkxmn9dOtC7HaqafNJ/xDk6aWTnBZW1rVLAigPRF7Cc=@vger.kernel.org X-Gm-Message-State: AOJu0YzsGSc3cGaCXQ8mRY7+2srz1ZwIVksMNcmK9CJ1CYYjdQY+wxVU xDigkbbkiZKhg776IPV3mz3HB5Re5vLi3cX0lELZW0dIBiAlnKEE0ABjWhBnlEI= X-Google-Smtp-Source: AGHT+IFnPigrzANCemZ9VtsGTqNDvB1a9yTdTADsvcOLtZZYeHwglJ1hZd6gPRX2GFqfyECMP2QLKQ== X-Received: by 2002:a17:907:944b:b0:a8a:87d5:2f49 with SMTP id a640c23a62f3a-a8ffae3a20cmr2140430366b.28.1726490488745; Mon, 16 Sep 2024 05:41:28 -0700 (PDT) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. [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: kvm@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