From nobody Mon Feb 9 20:32:52 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1564582844; cv=none; d=zoho.com; s=zohoarc; b=gqrvyomjJnJ4wA0mk5n4gSioTU5WGyK6HaF7R9r8Ya+595BkwHbpMjGV+Jmfsx8IBmI9nHYVK5bMoji6gOvrJ58thOeUikzMR0vBJ9Ex6G3u5Ok9shqaC72eMH28vhlGb3VTV95VR6ef6R9uwak3Chk6LimjwNsCRBL+XRJ903Q= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1564582844; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=INVC9utNTgFRsp+CXZy2vmzWK3ulgcbW2+cBOcLZnsU=; b=ZHrOwVdHPZq/CIde1PPiOpOpHOpWSGx+l+UEtlLb2l6ZvCUeoErTlSgGlVYw0XfQFjY/AuKJ5Tlx2yf+4T+XmxMFmG2bu93uIVpCO4QoDtGKZP650NHddmNXx8d7GQw6BJTNs5YYld9kBW95pE9Gr521+ekGj9ZBtlcw/zB+8Ro= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1564582844077795.6328286271846; Wed, 31 Jul 2019 07:20:44 -0700 (PDT) Received: from localhost ([::1]:41336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hspT9-0007Gr-4f for importer@patchew.org; Wed, 31 Jul 2019 10:20:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34651) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hspMu-0001T2-O8 for qemu-devel@nongnu.org; Wed, 31 Jul 2019 10:14:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hspMt-0002Sy-JA for qemu-devel@nongnu.org; Wed, 31 Jul 2019 10:14:16 -0400 Received: from 8.mo6.mail-out.ovh.net ([178.33.42.204]:42711) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hspMs-0002RJ-Sh for qemu-devel@nongnu.org; Wed, 31 Jul 2019 10:14:15 -0400 Received: from player715.ha.ovh.net (unknown [10.109.146.50]) by mo6.mail-out.ovh.net (Postfix) with ESMTP id 26EF91D9F1A for ; Wed, 31 Jul 2019 16:14:13 +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 player715.ha.ovh.net (Postfix) with ESMTPSA id C0F3F850BC8B; Wed, 31 Jul 2019 14:14:07 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Date: Wed, 31 Jul 2019 16:12:29 +0200 Message-Id: <20190731141233.1340-15-clg@kaod.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190731141233.1340-1-clg@kaod.org> References: <20190731141233.1340-1-clg@kaod.org> MIME-Version: 1.0 X-Ovh-Tracer-Id: 11688248408967384038 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduvddrleehgdejfecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 178.33.42.204 Subject: [Qemu-devel] [PATCH v3 14/18] 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, Greg Kurz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" 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 849291ee683e..84fbfd8e27b0 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, Monitor= *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