From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793827169; b=2cvH1hLR2bLon7hsrkEUcfplggcZqseXprNVXlVL13TxlaCjxPtZ/kApXhypiJZOqdhY BqPSmsTmXS1noaVHqtxCnpJidm4sbmWSmvN7y6s4J4hyqjl+ffobjwR1HJ0rjBLlu4XL1 gQootEKHsDRdRpNMaignUAamEr5klksCrPbPX6nXWkfRTrjZ7APXG3uvAvxaE8dsB/fUr H0kBawgnDMwI8HQvGkVWbdb4mloYlkRefk0anXA7xIGWX9J51YuoBYhEipIwo9P+QYeRD WElM2CXRmeQzEvPJBT3G6EsJW5rY7N/dYsiKYrBmTrbFHYyyqGTaqTScLTTwkVCbjbg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793827169; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=dqv7130npN2VJ9BaDnO2Xcckf3AY4niswDVqVMQ5hTg=; b=XQTXNcPVxL1wft1EOOE5a7MhqJfFOBUZ+tCQLKd5wTlLaDnxETL1jnOQ6T4DusiOoioY VizbZ4UE8chwMvWJwCKefIaL8hPhjE64/TkvbsMDUItBRF5IYL2JpkkM2lbUVRozUYmTc HTkw/rkQWbyB6jL6/q2AAe27gVzOKinXObgw2ckNfZ28rBtj3vqgwG8DDziAUU62lwSul MybZMF6v2J8nSBGsQOIhuKexmMw6LmUB2dduO4v2UYlYBWnY2lpJ7/6ajwxQ8jsux6yKQ LinWpgezuUHwhJYDKZXAciC+HvATwMS45A+Rf44AGK2aGfIo2YhlUX7ES4+H0myr0NQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=AT13itWw; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8941606D83F; Wed, 4 Nov 2026 21:19:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=AT13itWw Received: by smtp.kernel.org (Postfix) with ESMTPSA id D90C41F00A1D; Wed, 4 Nov 2026 21:19:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793827168; bh=dqv7130npN2VJ9BaDnO2Xcckf3AY4niswDVqVMQ5hTg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=AT13itWwcs9AtlV90JbeNmR8DAmEk6ryFDsl7arWGWfMl4hCRD5PT6AA1kiySzxZz e0KLn1YKZZCRrEbGUT/CFCy7mDVHSedjtM6VhnKfAiOuk+xM9v1FLLoxqToky5B3d0 iN8XhtHAP3doj7qDa94bbSiNDPcX1vqiPC+/yyeNDi9Eccue82VXDeGN2jSc4WYMCC PTCWFfHSdhJCePylkQ6XebJYQRXhqIRLq318B+Bw1Ii1ec8R2KTPqOUEFqsffWOh0I Wl3Mw3InAqNyj1rTCTOdtJthrtBzhC8xngA2BaeuT9TzLXVD4JNSGqIxTRV4WA9r+a SZPjiqvcHShTQ== Date: Wed, 4 Nov 2026 18:19:25 -0300 From: Arnaldo Carvalho de Melo To: Leo Yan Cc: lirongqing , Peter Zijlstra , Ingo Molnar , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Sergey Senozhatsky , Leo Yan , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] perf kvm: Fix arm64 VM-exit duration accounting Message-ID: References: <20261031120123.2312-1-lirongqing@baidu.com> <20261104111751.GG9176@e132581.arm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261104111751.GG9176@e132581.arm.com> On Wed, Nov 04, 2026 at 11:17:51AM +0000, Leo Yan wrote: > On Sat, Oct 31, 2026 at 08:01:23PM +0800, lirongqing wrote: > > From: Li RongQing > > > > Use kvm_exit as the start event and the following kvm_entry as the > > end event for arm64 VM-exit statistics. Keep decoding ret and esr_ec > > from the exit sample. > > > > Before this change, arm64 measured guest runtime as VM-exit time. > > > > Fixes: 1218838d68f5 ("perf kvm: Add kvm-stat for arm64") > > Signed-off-by: Li RongQing > > Thanks for the fix! > > Reviewed-by: Leo Yan > > Since arm64 requires the exit reason, we cannot directly use the common > exit_event_begin()/exit_event_end() callbacks as other archs do. Thanks, applied for v7.4. - Arnaldo