From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AEF9C4CEC4 for ; Wed, 18 Sep 2019 17:22:31 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EA6E6208C0 for ; Wed, 18 Sep 2019 17:22:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA6E6208C0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33248 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAdev-0000ni-AO for qemu-devel@archiver.kernel.org; Wed, 18 Sep 2019 13:22:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55942) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAcVU-0004wa-Tp for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:08:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iAcVT-0003l1-3R for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:08:40 -0400 Received: from 15.mo6.mail-out.ovh.net ([188.165.39.161]:50603) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iAcVS-0003i6-Ps for qemu-devel@nongnu.org; Wed, 18 Sep 2019 12:08:39 -0400 Received: from player799.ha.ovh.net (unknown [10.108.42.174]) by mo6.mail-out.ovh.net (Postfix) with ESMTP id 592481DDA89 for ; Wed, 18 Sep 2019 18:08:36 +0200 (CEST) Received: from kaod.org (lfbn-1-2240-157.w90-76.abo.wanadoo.fr [90.76.60.157]) (Authenticated sender: clg@kaod.org) by player799.ha.ovh.net (Postfix) with ESMTPSA id 540D59F0E99C; Wed, 18 Sep 2019 16:08:30 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Date: Wed, 18 Sep 2019 18:06:38 +0200 Message-Id: <20190918160645.25126-19-clg@kaod.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190918160645.25126-1-clg@kaod.org> References: <20190918160645.25126-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Ovh-Tracer-Id: 6234107785789606886 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedufedrudekgdeljecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 188.165.39.161 Subject: [Qemu-devel] [PATCH v4 18/25] ppc/pnv: Skip empty slots of the XIVE NVT table X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Greg Kurz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We try to loop on the full table skipping empty indirect pages which are not necessarily allocated. This is useful to dump the contexts of the KVM vCPUs. Signed-off-by: C=C3=A9dric Le Goater --- hw/intc/pnv_xive.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c index 782775136288..a986d4ed9364 100644 --- a/hw/intc/pnv_xive.c +++ b/hw/intc/pnv_xive.c @@ -1641,6 +1641,12 @@ static const MemoryRegionOps pnv_xive_pc_ops =3D { }, }; =20 +/* + * skiboot uses an indirect NVT table with 64k subpages + */ +#define XIVE_NVT_COUNT (1 << XIVE_NVT_SHIFT) +#define XIVE_NVT_PER_PAGE (0x10000 / sizeof(XiveNVT)) + static void xive_nvt_pic_print_info(XiveNVT *nvt, uint32_t nvt_idx, Monitor *mon) { @@ -1694,10 +1700,12 @@ void pnv_xive_pic_print_info(PnvXive *xive, Monit= or *mon) xive_end_eas_pic_print_info(&end, i++, mon); } =20 - monitor_printf(mon, "XIVE[%x] NVTT\n", blk); - i =3D 0; - while (!xive_router_get_nvt(xrtr, blk, i, &nvt)) { - xive_nvt_pic_print_info(&nvt, i++, mon); + monitor_printf(mon, "XIVE[%x] NVTT %08x .. %08x\n", blk, 0, + XIVE_NVT_COUNT - 1); + for (i =3D 0; i < XIVE_NVT_COUNT; i +=3D XIVE_NVT_PER_PAGE) { + while (!xive_router_get_nvt(xrtr, blk, i, &nvt)) { + xive_nvt_pic_print_info(&nvt, i++, mon); + } } } =20 --=20 2.21.0