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Sat, 26 Sep 2020 20:11:37 -0700 (PDT) Date: Sun, 27 Sep 2020 11:11:27 +0800 From: Leo Yan To: Andre Przywara Subject: Re: [PATCH 3/5] perf: arm_spe: Add nested virt event decoding Message-ID: <20200927031127.GC9677@leoy-ThinkPad-X240s> References: <20200922101225.183554-1-andre.przywara@arm.com> <20200922101225.183554-4-andre.przywara@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200922101225.183554-4-andre.przywara@arm.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200926_231140_278536_507B21A1 X-CRM114-Status: GOOD ( 19.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Suzuki K Poulose , Peter Zijlstra , Catalin Marinas , Jiri Olsa , linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Alexander Shishkin , Ingo Molnar , James Clark , Namhyung Kim , Will Deacon , Tan Xiaojun , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Sep 22, 2020 at 11:12:23AM +0100, Andre Przywara wrote: > The ARMv8.4 nested virtualisation extension can redirect system register > accesses to a memory page controlled by the hypervisor. The SPE > profiling feature in newer implementations can tag those memory accesses > accordingly. > > Add the bit pattern describing this load/store type, so that the perf > tool can decode it properly. > > Signed-off-by: Andre Przywara > --- > tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c > index e633bb5b8e65..943e4155b246 100644 > --- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c > +++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c > @@ -398,6 +398,10 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, > buf += ret; > blen -= ret; > } > + } else if ((payload & 0xfe) == 0x30) { > + ret = snprintf(buf, buf_len, " NV-SYSREG"); > + buf += ret; > + blen -= ret; This change has been included in the patch "perf arm-spe: Add more sub classes for operation packet" [1]. Thanks, Leo [1] https://lore.kernel.org/patchwork/patch/1288412/ > } else if (payload & 0x4) { > ret = snprintf(buf, buf_len, " SIMD-FP"); > buf += ret; > -- > 2.17.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel