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[90.87.156.131]) by smtp.gmail.com with ESMTPSA id f21-20020a7bcd15000000b003942a244f30sm2544884wmj.9.2022.05.17.07.33.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 May 2022 07:33:36 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 5676ab00-d5ee-11ec-bd2c-47488cf2e6aa DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=gpzhC736ZCcknGHWj7xlGwQP3KKn5gNkOz0b71J0xEk=; b=b/jhAljctA8SSJZRjApK/ajrQuLJdVc/6RBDV3owMBNa3Fc4Dr/YNdXXQ5DHjl3mzB LhA9T7p3TNvdWiUkRXIAdRoyNJhSpy4NZMF4X4gqJTFzUXv2aVsKLGP+Bp1/l5/5Fw+e fNTtR1ZoESUJh2P/c3cvB0JRgnQK3rcdjqaqkcPhtRFARx4gHr4L8Vb9xGIGhsquH80B 4vfnuvkyREGSdNGEOMLbbw70a0OriT1kYOLF5jzN88SGc+V0hegLx34nd1rXHqaAkzIm zlBpUVUmD8z11TlWSKMDQpvft8iLx7K3GGnb/XRZEWk6arT3eTd5pgeBfskfddhXWZr4 gtmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gpzhC736ZCcknGHWj7xlGwQP3KKn5gNkOz0b71J0xEk=; b=ks8kzvpm/hURk9rZdT03A020FbRyNtFQukNsIQXbsMdwG53za2FxarIOKuudbre4BN d3qrK5F5A/MqtcxomSnCkdCPPy2vldDnvIEn0DUKKqlOqbrEds1BcsnfmxwA1tRyHile +fNKH3Il2+vgD6hI0cbJ/u906ejJHBNQh9cJVC8weoRakTKRV0RP6QkdsYTxv6QqZ4PU xqW4JbKXMGSXxLY+gSfXmZdyi/yl2/FWalt6Sau+NbuWRj8LTBhJYFIUyhumFt4z25n/ e1q+bCdOLmKLq8kB27B+QMmsbwJcdV8UkhpqsBX8e6cUNUf5Y9ytiQ1PNCM8ThC9JIeC 01yA== X-Gm-Message-State: AOAM533zn53bRo7hm3kpPoQgyxnnEloXLgQwoqHU2AtUa8J1qAyx5AMW mf3pOXsbhmZvT7tVQAx+pdX7RcTcWIUjGQ== X-Google-Smtp-Source: ABdhPJy00iSU9MGY4ElHHizz5q64eggXdUyF8ugDubELNhWZeMFlJKgjswaZAjB2s8FXFaicvsp6kQ== X-Received: by 2002:adf:eb4b:0:b0:20c:dfe2:bed7 with SMTP id u11-20020adfeb4b000000b0020cdfe2bed7mr18409036wrn.672.1652798016532; Tue, 17 May 2022 07:33:36 -0700 (PDT) From: Matias Ezequiel Vara Larsen X-Google-Original-From: Matias Ezequiel Vara Larsen To: xen-devel@lists.xenproject.org Cc: Matias Ezequiel Vara Larsen , Wei Liu , Anthony PERARD Subject: [RFC PATCH 2/2] tools/misc: Add xen-stats tool Date: Tue, 17 May 2022 16:33:15 +0200 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Add a demostration tool that uses the stats_table resource to query vcpu time for a DomU. Signed-off-by: Matias Ezequiel Vara Larsen --- tools/misc/Makefile | 5 +++ tools/misc/xen-stats.c | 83 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+) create mode 100644 tools/misc/xen-stats.c diff --git a/tools/misc/Makefile b/tools/misc/Makefile index 2b683819d4..b510e3aceb 100644 --- a/tools/misc/Makefile +++ b/tools/misc/Makefile @@ -135,4 +135,9 @@ xencov: xencov.o xen-ucode: xen-ucode.o $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS_libxenctrl) $(APPEND_LDFLAGS) +xen-stats.o: CFLAGS += $(CFLAGS_libxenforeginmemory) + +xen-stats: xen-stats.o + $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS_libxenctrl) $(LDLIBS_libxenforeignmemory) $(APPEND_LDFLAGS) + -include $(DEPS_INCLUDE) diff --git a/tools/misc/xen-stats.c b/tools/misc/xen-stats.c new file mode 100644 index 0000000000..5d4a3239cc --- /dev/null +++ b/tools/misc/xen-stats.c @@ -0,0 +1,83 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +static sig_atomic_t interrupted; +static void close_handler(int signum) +{ + interrupted = 1; +} + +int main(int argc, char **argv) +{ + xenforeignmemory_handle *fh; + xenforeignmemory_resource_handle *res; + size_t size; + int rc, nr_frames, domid, frec, vcpu; + uint64_t * info; + struct sigaction act; + + if (argc != 4 ) { + fprintf(stderr, "Usage: %s \n", argv[0]); + return 1; + } + + // TODO: this depends on the resource + nr_frames = 1; + + domid = atoi(argv[1]); + frec = atoi(argv[3]); + vcpu = atoi(argv[2]); + + act.sa_handler = close_handler; + act.sa_flags = 0; + sigemptyset(&act.sa_mask); + sigaction(SIGHUP, &act, NULL); + sigaction(SIGTERM, &act, NULL); + sigaction(SIGINT, &act, NULL); + sigaction(SIGALRM, &act, NULL); + + fh = xenforeignmemory_open(NULL, 0); + + if ( !fh ) + err(1, "xenforeignmemory_open"); + + rc = xenforeignmemory_resource_size( + fh, domid, XENMEM_resource_stats_table, + vcpu, &size); + + if ( rc ) + err(1, " Fail: Get size: %d - %s\n", errno, strerror(errno)); + + if ( (size >> XC_PAGE_SHIFT) != nr_frames ) + err(1, " Fail: Get size: expected %u frames, got %zu\n", + nr_frames, size >> XC_PAGE_SHIFT); + + res = xenforeignmemory_map_resource( + fh, domid, XENMEM_resource_stats_table, + vcpu, 0, size >> XC_PAGE_SHIFT, + (void **)&info, PROT_READ, 0); + + if ( !res ) + err(1, " Fail: Map %d - %s\n", errno, strerror(errno)); + + while ( !interrupted ) { + sleep(frec); + printf("running cpu_time: %ld\n", *info); + } + + rc = xenforeignmemory_unmap_resource(fh, res); + if ( rc ) + err(1, " Fail: Unmap %d - %s\n", errno, strerror(errno)); + + return 0; +}