From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: [PATCH v2 3/9] perf, tools: Add support for guest/host-only profiling Date: Wed, 5 Oct 2011 14:01:18 +0200 Message-ID: <1317816084-18026-4-git-send-email-gleb@redhat.com> References: <1317816084-18026-1-git-send-email-gleb@redhat.com> Cc: avi@redhat.com, kvm@vger.kernel.org, joerg.roedel@amd.com, mingo@elte.hu, a.p.zijlstra@chello.nl To: linux-kernel@vger.kernel.org Return-path: In-Reply-To: <1317816084-18026-1-git-send-email-gleb@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org From: Joerg Roedel To restrict a counter to either host or guest mode this patch introduces two new event modifiers: G and H. With G the counter is configured in guest-only mode and with H in host-only mode. Signed-off-by: Joerg Roedel Signed-off-by: Gleb Natapov --- tools/perf/util/parse-events.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 928918b..3b00775 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -735,8 +735,8 @@ static int parse_event_modifier(const char **strp, struct perf_event_attr *attr) { const char *str = *strp; - int exclude = 0; - int eu = 0, ek = 0, eh = 0, precise = 0; + int exclude = 0, exclude_GH = 0; + int eu = 0, ek = 0, eh = 0, eH = 0, eG = 0, precise = 0; if (!*str) return 0; @@ -760,6 +760,14 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr) if (!exclude) exclude = eu = ek = eh = 1; eh = 0; + } else if (*str == 'G') { + if (!exclude_GH) + exclude_GH = eG = eH = 1; + eG = 0; + } else if (*str == 'H') { + if (!exclude_GH) + exclude_GH = eG = eH = 1; + eH = 0; } else if (*str == 'p') { precise++; } else @@ -776,6 +784,8 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr) attr->exclude_kernel = ek; attr->exclude_hv = eh; attr->precise_ip = precise; + attr->exclude_host = eH; + attr->exclude_guest = eG; return 0; } -- 1.7.5.3